wip

.gitignore

@@ -1,3 +1,7 @@
 build
 *.pyc
 venv
+ixsnake/ixsnake/.certs/
+site/
+ws/.certs/
+ws/.srl

DOCKER_VERSION

@@ -1 +0,0 @@
-7.5.0

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:edge as build
+FROM alpine:3.11 as build
 
 RUN apk add --no-cache gcc g++ musl-dev linux-headers cmake openssl-dev 
 RUN apk add --no-cache make
@@ -16,7 +16,7 @@ WORKDIR /opt
 USER app
 RUN [ "make", "ws_install" ]
 
-FROM alpine:edge as runtime
+FROM alpine:3.11 as runtime
 
 RUN apk add --no-cache libstdc++
 RUN apk add --no-cache strace

docs/CHANGELOG.md

@@ -1,5 +1,72 @@
 # Changelog
-All notable changes to this project will be documented in this file.
+All changes to this project will be documented in this file.
+
+## [7.6.4] - 2019-12-22
+
+(client) error handling, quote url in error case when failing to parse one
+(ws) ws_cobra_publish: register callbacks before connecting
+(doc) mention mbedtls in supported ssl server backend
+
+
+## [7.6.3] - 2019-12-20
+
+(tls) add a simple description of the TLS configuration routine for debugging
+
+## [7.6.2] - 2019-12-20
+
+(mbedtls) correct support for using own certificate and private key
+
+## [7.6.1] - 2019-12-20
+
+(ws commands) in websocket proxy, disable automatic reconnections + in Dockerfile, use alpine 3.11
+
+## [7.6.0] - 2019-12-19
+
+(cobra) Add TLS options to all cobra commands and classes. Add example to the doc.
+
+## [7.5.8] - 2019-12-18
+
+(cobra-to-sentry) capture application version from device field
+
+## [7.5.7] - 2019-12-18
+
+(tls) Experimental TLS server support with mbedtls (windows) + process cert tlsoption (client + server)
+
+## [7.5.6] - 2019-12-18
+
+(tls servers) Make it clear that apple ssl and mbedtls backends do not support SSL in server mode
+
+## [7.5.5] - 2019-12-17
+
+(tls options client) TLSOptions struct _validated member should be initialized to false
+
+## [7.5.4] - 2019-12-16
+
+(websocket client) improve the error message when connecting to a non websocket server
+
+Before:
+
+```
+Connection error: Got bad status connecting to example.com:443, status: 200, HTTP Status line: HTTP/1.1 200 OK
+```
+
+After:
+
+```
+Connection error: Expecting status 101 (Switching Protocol), got 200 status connecting to example.com:443, HTTP Status line: HTTP/1.1 200 OK
+```
+
+## [7.5.3] - 2019-12-12
+
+(server) attempt at fixing #131 by using blocking writes in server mode
+
+## [7.5.2] - 2019-12-11
+
+(ws) cobra to sentry - created events with sentry tags based on tags present in the cobra messages
+
+## [7.5.1] - 2019-12-06
+
+(mac) convert SSL errors to utf8
 
 ## [7.5.0] - 2019-12-05
 

docs/ws.md

@@ -243,6 +243,127 @@ Options:
   --transfer-timeout INT      Transfer timeout
 ```
 
-## Cobra Client
+## Cobra client and server
 
-[cobra](https://github.com/machinezone/cobra) is a real time messenging server. ws has a sub-command to interact with cobra.
+[cobra](https://github.com/machinezone/cobra) is a real time messenging server. ws has several sub-command to interact with cobra. There is also a minimal cobra compatible server named snake available.
+
+Below are examples on running a snake server and clients with TLS enabled (the server only works with the OpenSSL and the Mbed TLS backend for now).
+
+First, generate certificates.
+
+```
+$ cd /path/to/IXWebSocket
+$ cd ixsnake/ixsnake
+$ bash ../../ws/generate_certs.sh
+Generating RSA private key, 2048 bit long modulus
+.....+++
+.................+++
+e is 65537 (0x10001)
+generated ./.certs/trusted-ca-key.pem
+generated ./.certs/trusted-ca-crt.pem
+Generating RSA private key, 2048 bit long modulus
+..+++
+.......................................+++
+e is 65537 (0x10001)
+generated ./.certs/trusted-server-key.pem
+Signature ok
+subject=/O=machinezone/O=IXWebSocket/CN=trusted-server
+Getting CA Private Key
+generated ./.certs/trusted-server-crt.pem
+Generating RSA private key, 2048 bit long modulus
+...................................+++
+..................................................+++
+e is 65537 (0x10001)
+generated ./.certs/trusted-client-key.pem
+Signature ok
+subject=/O=machinezone/O=IXWebSocket/CN=trusted-client
+Getting CA Private Key
+generated ./.certs/trusted-client-crt.pem
+Generating RSA private key, 2048 bit long modulus
+..............+++
+.......................................+++
+e is 65537 (0x10001)
+generated ./.certs/untrusted-ca-key.pem
+generated ./.certs/untrusted-ca-crt.pem
+Generating RSA private key, 2048 bit long modulus
+..........+++
+................................................+++
+e is 65537 (0x10001)
+generated ./.certs/untrusted-client-key.pem
+Signature ok
+subject=/O=machinezone/O=IXWebSocket/CN=untrusted-client
+Getting CA Private Key
+generated ./.certs/untrusted-client-crt.pem
+Generating RSA private key, 2048 bit long modulus
+.....................................................................................+++
+...........+++
+e is 65537 (0x10001)
+generated ./.certs/selfsigned-client-key.pem
+Signature ok
+subject=/O=machinezone/O=IXWebSocket/CN=selfsigned-client
+Getting Private key
+generated ./.certs/selfsigned-client-crt.pem
+```
+
+Now run the snake server.
+
+```
+$ export certs=.certs
+$ ws snake --tls --port 8765 --cert-file ${certs}/trusted-server-crt.pem --key-file ${certs}/trusted-server-key.pem --ca-file ${certs}/trusted-ca-crt.pem
+{
+  "apps": {
+    "FC2F10139A2BAc53BB72D9db967b024f": {
+      "roles": {
+        "_sub": {
+          "secret": "66B1dA3ED5fA074EB5AE84Dd8CE3b5ba"
+        },
+        "_pub": {
+          "secret": "1c04DB8fFe76A4EeFE3E318C72d771db"
+        }
+      }
+    }
+  }
+}
+
+redis host: 127.0.0.1
+redis password:
+redis port: 6379
+```
+
+As a new connection comes in, such output should be printed
+
+```
+[2019-12-19 20:27:19.724] [info] New connection
+id: 0
+Uri: /v2?appkey=_health
+Headers:
+Connection: Upgrade
+Host: 127.0.0.1:8765
+Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15; client_max_window_bits=15
+Sec-WebSocket-Key: d747B0fE61Db73f7Eh47c0==
+Sec-WebSocket-Protocol: json
+Sec-WebSocket-Version: 13
+Upgrade: websocket
+User-Agent: ixwebsocket/7.5.8 macos ssl/OpenSSL OpenSSL 1.0.2q  20 Nov 2018 zlib 1.2.11
+```
+
+To connect and publish a message, do:
+
+```
+$ export certs=.certs
+$ cd /path/to/ws/folder
+$ ls cobraMetricsSample.json
+cobraMetricsSample.json
+$ ws cobra_publish --endpoint wss://127.0.0.1:8765 --appkey FC2F10139A2BAc53BB72D9db967b024f --rolename _pub --rolesecret 1c04DB8fFe76A4EeFE3E318C72d771db --channel foo --cert-file ${certs}/trusted-client-crt.pem --key-file ${certs}/trusted-client-key.pem --ca-file ${certs}/trusted-ca-crt.pem cobraMetricsSample.json
+[2019-12-19 20:46:42.656] [info] Publisher connected
+[2019-12-19 20:46:42.657] [info] Connection: Upgrade
+[2019-12-19 20:46:42.657] [info] Sec-WebSocket-Accept: rs99IFThoBrhSg+k8G4ixH9yaq4=
+[2019-12-19 20:46:42.657] [info] Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15; client_max_window_bits=15
+[2019-12-19 20:46:42.657] [info] Server: ixwebsocket/7.5.8 macos ssl/OpenSSL OpenSSL 1.0.2q  20 Nov 2018 zlib 1.2.11
+[2019-12-19 20:46:42.657] [info] Upgrade: websocket
+[2019-12-19 20:46:42.658] [info] Publisher authenticated
+[2019-12-19 20:46:42.658] [info] Published msg 3
+[2019-12-19 20:46:42.659] [info] Published message id 3 acked
+```
+
+To use OpenSSL on macOS, compile with `make ws_openssl`. First you will have to install OpenSSL libraries, which can be done with Homebrew. Use `make ws_mbedtls` accordingly to use MbedTLS.

ixcobra/ixcobra/IXCobraConnection.cpp

@@ -7,6 +7,7 @@
 #include "IXCobraConnection.h"
 #include <ixcrypto/IXHMac.h>
 #include <ixwebsocket/IXWebSocket.h>
+#include <ixwebsocket/IXSocketTLSOptions.h>
 
 #include <algorithm>
 #include <stdexcept>
@@ -244,7 +245,8 @@ namespace ix
                                     const std::string& endpoint,
                                     const std::string& rolename,
                                     const std::string& rolesecret,
-                                    const WebSocketPerMessageDeflateOptions& webSocketPerMessageDeflateOptions)
+                                    const WebSocketPerMessageDeflateOptions& webSocketPerMessageDeflateOptions,
+                                    const SocketTLSOptions& socketTLSOptions)
     {
         _roleName = rolename;
         _roleSecret = rolesecret;
@@ -257,6 +259,7 @@ namespace ix
         std::string url = ss.str();
         _webSocket->setUrl(url);
         _webSocket->setPerMessageDeflateOptions(webSocketPerMessageDeflateOptions);
+        _webSocket->setTLSOptions(socketTLSOptions);
     }
 
     //

ixcobra/ixcobra/IXCobraConnection.h

@@ -20,6 +20,7 @@
 namespace ix
 {
     class WebSocket;
+    struct SocketTLSOptions;
 
     enum CobraConnectionEventType
     {
@@ -62,7 +63,8 @@ namespace ix
                        const std::string& endpoint,
                        const std::string& rolename,
                        const std::string& rolesecret,
-                       const WebSocketPerMessageDeflateOptions& webSocketPerMessageDeflateOptions);
+                       const WebSocketPerMessageDeflateOptions& webSocketPerMessageDeflateOptions,
+                       const SocketTLSOptions& socketTLSOptions);
 
         /// Set the traffic tracker callback
         static void setTrafficTrackerCallback(const TrafficTrackerCallback& callback);

ixcobra/ixcobra/IXCobraMetricsPublisher.cpp

@@ -5,6 +5,7 @@
  */
 
 #include "IXCobraMetricsPublisher.h"
+#include <ixwebsocket/IXSocketTLSOptions.h>
 
 #include <algorithm>
 #include <stdexcept>
@@ -31,14 +32,15 @@ namespace ix
                                           const std::string& channel,
                                           const std::string& rolename,
                                           const std::string& rolesecret,
-                                          bool enablePerMessageDeflate)
+                                          bool enablePerMessageDeflate,
+                                          const SocketTLSOptions& socketTLSOptions)
     {
         // Configure the satori connection and start its publish background thread
         _cobra_metrics_theaded_publisher.start();
 
         _cobra_metrics_theaded_publisher.configure(appkey, endpoint, channel,
                                                    rolename, rolesecret,
-                                                   enablePerMessageDeflate);
+                                                   enablePerMessageDeflate, socketTLSOptions);
     }
 
     Json::Value& CobraMetricsPublisher::getGenericAttributes()

ixcobra/ixcobra/IXCobraMetricsPublisher.h

@@ -15,6 +15,8 @@
 
 namespace ix
 {
+    struct SocketTLSOptions;
+
     class CobraMetricsPublisher
     {
     public:
@@ -43,7 +45,8 @@ namespace ix
                        const std::string& channel,
                        const std::string& rolename,
                        const std::string& rolesecret,
-                       bool enablePerMessageDeflate);
+                       bool enablePerMessageDeflate,
+                       const SocketTLSOptions& socketTLSOptions);
 
         /// Setter for the list of blacklisted metrics ids.
         /// That list is sorted internally for fast lookups

ixcobra/ixcobra/IXCobraMetricsThreadedPublisher.cpp

@@ -6,6 +6,7 @@
 
 #include "IXCobraMetricsThreadedPublisher.h"
 #include <ixwebsocket/IXSetThreadName.h>
+#include <ixwebsocket/IXSocketTLSOptions.h>
 #include <ixcore/utils/IXCoreLogger.h>
 
 #include <algorithm>
@@ -92,14 +93,17 @@ namespace ix
                                                   const std::string& channel,
                                                   const std::string& rolename,
                                                   const std::string& rolesecret,
-                                                  bool enablePerMessageDeflate)
+                                                  bool enablePerMessageDeflate,
+                                                  const SocketTLSOptions& socketTLSOptions)
     {
         _channel = channel;
 
+        ix::IXCoreLogger::Log(socketTLSOptions.getDescription().c_str());
+
         ix::WebSocketPerMessageDeflateOptions webSocketPerMessageDeflateOptions(enablePerMessageDeflate);
         _cobra_connection.configure(appkey, endpoint,
                                     rolename, rolesecret,
-                                    webSocketPerMessageDeflateOptions);
+                                    webSocketPerMessageDeflateOptions, socketTLSOptions);
     }
 
     void CobraMetricsThreadedPublisher::pushMessage(MessageKind messageKind)

ixcobra/ixcobra/IXCobraMetricsThreadedPublisher.h

@@ -18,6 +18,8 @@
 
 namespace ix
 {
+    struct SocketTLSOptions;
+
     class CobraMetricsThreadedPublisher
     {
     public:
@@ -30,7 +32,8 @@ namespace ix
                        const std::string& channel,
                        const std::string& rolename,
                        const std::string& rolesecret,
-                       bool enablePerMessageDeflate);
+                       bool enablePerMessageDeflate,
+                       const SocketTLSOptions& socketTLSOptions);
 
         /// Start the worker thread, used for background publishing
         void start();

ixsentry/ixsentry/IXSentryClient.cpp

@@ -11,6 +11,7 @@
 #include <fstream>
 #include <sstream>
 #include <ixwebsocket/IXWebSocketHttpHeaders.h>
+#include <ixwebsocket/IXWebSocketVersion.h>
 #include <ixcore/utils/IXCoreLogger.h>
 
 
@@ -120,26 +121,6 @@ namespace ix
     {
         Json::Value payload;
 
-        payload["platform"] = "python";
-        payload["sdk"]["name"] = "ws";
-        payload["sdk"]["version"] = "1.0.0";
-        payload["timestamp"] = SentryClient::getIso8601();
-
-        bool isNoisyTypes = msg["id"].asString() == "game_noisytypes_id";
-
-        std::string stackTraceFieldName = isNoisyTypes ? "traceback" : "stack";
-        std::string stack(msg["data"][stackTraceFieldName].asString());
-
-        Json::Value exception;
-        exception["stacktrace"]["frames"] = parseLuaStackTrace(stack);
-        exception["value"] = isNoisyTypes ? parseExceptionName(stack) : msg["data"]["message"];
-
-        payload["exception"].append(exception);
-
-        Json::Value extra;
-        extra["cobra_event"] = msg;
-        extra["cobra_event"] = msg;
-
         //
         // "tags": [
         //   [
@@ -148,8 +129,61 @@ namespace ix
         //   ],
         //  ]
         //
-        Json::Value tags;
+        Json::Value tags(Json::arrayValue);
 
+        payload["platform"] = "python";
+        payload["sdk"]["name"] = "ws";
+        payload["sdk"]["version"] = IX_WEBSOCKET_VERSION;
+        payload["timestamp"] = SentryClient::getIso8601();
+
+        bool isNoisyTypes = msg["id"].asString() == "game_noisytypes_id";
+
+        std::string stackTraceFieldName = isNoisyTypes ? "traceback" : "stack";
+        std::string stack;
+        std::string message;
+
+        if (isNoisyTypes)
+        {
+            stack = msg["data"][stackTraceFieldName].asString();
+            message = parseExceptionName(stack);
+        }
+        else // logging
+        {
+            if (msg["data"].isMember("info"))
+            {
+                stack = msg["data"]["info"][stackTraceFieldName].asString();
+                message = msg["data"]["info"]["message"].asString();
+
+                if (msg["data"].isMember("tags"))
+                {
+                    auto members = msg["data"]["tags"].getMemberNames();
+
+                    for (auto member : members)
+                    {
+                        Json::Value tag;
+                        tag.append(member);
+                        tag.append(msg["data"]["tags"][member]);
+                        tags.append(tag);
+                    }
+                }
+            }
+            else
+            {
+                stack = msg["data"][stackTraceFieldName].asString();
+                message = msg["data"]["message"].asString();
+            }
+        }
+
+        Json::Value exception;
+        exception["stacktrace"]["frames"] = parseLuaStackTrace(stack);
+        exception["value"] = message;
+
+        payload["exception"].append(exception);
+
+        Json::Value extra;
+        extra["cobra_event"] = msg;
+
+        // Builtin tags
         Json::Value gameTag;
         gameTag.append("game");
         gameTag.append(msg["device"]["game"]);
@@ -165,6 +199,11 @@ namespace ix
         environmentTag.append(msg["device"]["environment"]);
         tags.append(environmentTag);
 
+        Json::Value clientVersionTag;
+        clientVersionTag.append("client_version");
+        clientVersionTag.append(msg["device"]["app_version"]);
+        tags.append(clientVersionTag);
+
         payload["tags"] = tags;
 
         return _jsonWriter.write(payload);

ixsnake/ixsnake/IXAppConfig.h

@@ -9,6 +9,7 @@
 #include <nlohmann/json.hpp>
 #include <string>
 #include <vector>
+#include <ixwebsocket/IXSocketTLSOptions.h>
 
 namespace snake
 {
@@ -26,6 +27,9 @@ namespace snake
         // AppKeys
         nlohmann::json apps;
 
+        // TLS options
+        ix::SocketTLSOptions socketTLSOptions;
+
         // Misc
         bool verbose;
     };

ixsnake/ixsnake/IXSnakeServer.cpp

@@ -20,7 +20,7 @@ namespace snake
         : _appConfig(appConfig)
         , _server(appConfig.port, appConfig.hostname)
     {
-        ;
+        _server.setTLSOptions(appConfig.socketTLSOptions);
     }
 
     //

ixwebsocket/IXSocketAppleSSL.cpp

@@ -24,9 +24,47 @@
 
 #include <Security/SecureTransport.h>
 
-namespace
+namespace ix
 {
-    OSStatus read_from_socket(SSLConnectionRef connection, void* data, size_t* len)
+    SocketAppleSSL::SocketAppleSSL(const SocketTLSOptions& tlsOptions, int fd)
+        : Socket(fd)
+        , _sslContext(nullptr)
+        , _tlsOptions(tlsOptions)
+    {
+        ;
+    }
+
+    SocketAppleSSL::~SocketAppleSSL()
+    {
+        SocketAppleSSL::close();
+    }
+
+    std::string SocketAppleSSL::getSSLErrorDescription(OSStatus status)
+    {
+        std::string errMsg("Unknown SSL error.");
+
+        CFErrorRef error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainOSStatus, status, NULL);
+        if (error)
+        {
+            CFStringRef message = CFErrorCopyDescription(error);
+            if (message)
+            {
+                char localBuffer[128];
+                Boolean success;
+                success = CFStringGetCString(message, localBuffer, 128, kCFStringEncodingUTF8);
+                if (success)
+                {
+                    errMsg = localBuffer;
+                }
+                CFRelease(message);
+            }
+            CFRelease(error);
+        }
+
+        return errMsg;
+    }
+
+    OSStatus SocketAppleSSL::readFromSocket(SSLConnectionRef connection, void* data, size_t* len)
     {
         int fd = (int) (long) connection;
         if (fd < 0) return errSSLInternal;
@@ -67,7 +105,7 @@ namespace
         }
     }
 
-    OSStatus write_to_socket(SSLConnectionRef connection, const void* data, size_t* len)
+    OSStatus SocketAppleSSL::writeToSocket(SSLConnectionRef connection, const void* data, size_t* len)
     {
         int fd = (int) (long) connection;
         if (fd < 0) return errSSLInternal;
@@ -105,47 +143,55 @@ namespace
         }
     }
 
-    std::string getSSLErrorDescription(OSStatus status)
-    {
-        std::string errMsg("Unknown SSL error.");
 
-        CFErrorRef error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainOSStatus, status, NULL);
-        if (error)
+    bool SocketAppleSSL::accept(std::string& errMsg)
+    {
+        OSStatus status;
         {
-            CFStringRef message = CFErrorCopyDescription(error);
-            if (message)
+            std::lock_guard<std::mutex> lock(_mutex);
+
+            _sslContext = SSLCreateContext(kCFAllocatorDefault, kSSLServerSide, kSSLStreamType);
+
+            SSLSetIOFuncs(_sslContext, SocketAppleSSL::readFromSocket, SocketAppleSSL::writeToSocket);
+            SSLSetConnection(_sslContext, (SSLConnectionRef)(long) _sockfd);
+            SSLSetProtocolVersionMin(_sslContext, kTLSProtocol12);
+
+            if (_tlsOptions.isPeerVerifyDisabled())
             {
-                char localBuffer[128];
-                Boolean success;
-                success =
-                    CFStringGetCString(message, localBuffer, 128, CFStringGetSystemEncoding());
-                if (success)
+                Boolean option(1);
+                SSLSetSessionOption(_sslContext, kSSLSessionOptionBreakOnServerAuth, option);
+
+                do
                 {
-                    errMsg = localBuffer;
+                    status = SSLHandshake(_sslContext);
+                } while (errSSLWouldBlock == status || errSSLServerAuthCompleted == status);
+
+                if (status == errSSLServerAuthCompleted)
+                {
+                    // proceed with the handshake
+                    do
+                    {
+                        status = SSLHandshake(_sslContext);
+                    } while (errSSLWouldBlock == status || errSSLServerAuthCompleted == status);
                 }
-                CFRelease(message);
             }
-            CFRelease(error);
+            else
+            {
+                do
+                {
+                    status = SSLHandshake(_sslContext);
+                } while (errSSLWouldBlock == status || errSSLServerAuthCompleted == status);
+            }
         }
 
-        return errMsg;
-    }
+        if (noErr != status)
+        {
+            errMsg = getSSLErrorDescription(status);
+            close();
+            return false;
+        }
 
-} // anonymous namespace
-
-namespace ix
-{
-    SocketAppleSSL::SocketAppleSSL(const SocketTLSOptions& tlsOptions, int fd)
-        : Socket(fd)
-        , _sslContext(nullptr)
-        , _tlsOptions(tlsOptions)
-    {
-        ;
-    }
-
-    SocketAppleSSL::~SocketAppleSSL()
-    {
-        SocketAppleSSL::close();
+        return true;
     }
 
     // No wait support
@@ -163,7 +209,7 @@ namespace ix
 
             _sslContext = SSLCreateContext(kCFAllocatorDefault, kSSLClientSide, kSSLStreamType);
 
-            SSLSetIOFuncs(_sslContext, read_from_socket, write_to_socket);
+            SSLSetIOFuncs(_sslContext, SocketAppleSSL::readFromSocket, SocketAppleSSL::writeToSocket);
             SSLSetConnection(_sslContext, (SSLConnectionRef)(long) _sockfd);
             SSLSetProtocolVersionMin(_sslContext, kTLSProtocol12);
             SSLSetPeerDomainName(_sslContext, host.c_str(), host.size());

ixwebsocket/IXSocketAppleSSL.h

@@ -21,6 +21,8 @@ namespace ix
         SocketAppleSSL(const SocketTLSOptions& tlsOptions, int fd = -1);
         ~SocketAppleSSL();
 
+        virtual bool accept(std::string& errMsg) final;
+
         virtual bool connect(const std::string& host,
                              int port,
                              std::string& errMsg,
@@ -32,6 +34,10 @@ namespace ix
         virtual ssize_t recv(void* buffer, size_t length) final;
 
     private:
+        static std::string getSSLErrorDescription(OSStatus status);
+        static OSStatus writeToSocket(SSLConnectionRef connection, const void* data, size_t* len);
+        static OSStatus readFromSocket(SSLConnectionRef connection, void* data, size_t* len);
+
         SSLContextRef _sslContext;
         mutable std::mutex _mutex; // AppleSSL routines are not thread-safe
 

ixwebsocket/IXSocketMbedTLS.cpp

@@ -38,9 +38,10 @@ namespace ix
         mbedtls_ctr_drbg_init(&_ctr_drbg);
         mbedtls_entropy_init(&_entropy);
         mbedtls_x509_crt_init(&_cacert);
+        mbedtls_x509_crt_init(&_cert);
     }
 
-    bool SocketMbedTLS::init(const std::string& host, std::string& errMsg)
+    bool SocketMbedTLS::init(const std::string& host, bool isClient, std::string& errMsg)
     {
         initMBedTLS();
         std::lock_guard<std::mutex> lock(_mutex);
@@ -58,7 +59,7 @@ namespace ix
         }
 
         if (mbedtls_ssl_config_defaults(&_conf,
-                                        MBEDTLS_SSL_IS_CLIENT,
+                                        (isClient) ? MBEDTLS_SSL_IS_CLIENT : MBEDTLS_SSL_IS_SERVER,
                                         MBEDTLS_SSL_TRANSPORT_STREAM,
                                         MBEDTLS_SSL_PRESET_DEFAULT) != 0)
         {
@@ -68,13 +69,27 @@ namespace ix
 
         mbedtls_ssl_conf_rng(&_conf, mbedtls_ctr_drbg_random, &_ctr_drbg);
 
+        if (_tlsOptions.hasCertAndKey())
+        {
+            if (mbedtls_x509_crt_parse_file(&_cert, _tlsOptions.certFile.c_str()) < 0)
+            {
+                errMsg = "Cannot parse cert file '" + _tlsOptions.certFile + "'";
+                return false;
+            }
+            if (mbedtls_pk_parse_keyfile(&_pkey, _tlsOptions.keyFile.c_str(), "") < 0)
+            {
+                errMsg = "Cannot parse key file '" + _tlsOptions.keyFile + "'";
+                return false;
+            }
+        }
+
         if (_tlsOptions.isPeerVerifyDisabled())
         {
             mbedtls_ssl_conf_authmode(&_conf, MBEDTLS_SSL_VERIFY_NONE);
         }
         else
         {
-            mbedtls_ssl_conf_ca_chain(&_conf, &_cacert, NULL);
+            mbedtls_ssl_conf_authmode(&_conf, MBEDTLS_SSL_VERIFY_REQUIRED);
 
             // FIXME: should we call mbedtls_ssl_conf_verify ?
 
@@ -87,7 +102,13 @@ namespace ix
                 errMsg = "Cannot parse CA file '" + _tlsOptions.caFile + "'";
                 return false;
             }
-            mbedtls_ssl_conf_authmode(&_conf, MBEDTLS_SSL_VERIFY_REQUIRED);
+
+            mbedtls_ssl_conf_ca_chain(&_conf, &_cacert, NULL);
+
+            if (_tlsOptions.hasCertAndKey())
+            {
+                mbedtls_ssl_conf_own_cert(&_conf, &_cert, &_pkey);
+            }
         }
 
         if (mbedtls_ssl_setup(&_ssl, &_conf) != 0)
@@ -96,7 +117,7 @@ namespace ix
             return false;
         }
 
-        if (mbedtls_ssl_set_hostname(&_ssl, host.c_str()) != 0)
+        if (!host.empty() && mbedtls_ssl_set_hostname(&_ssl, host.c_str()) != 0)
         {
             errMsg = "SNI setup failed";
             return false;
@@ -105,6 +126,50 @@ namespace ix
         return true;
     }
 
+    bool SocketMbedTLS::accept(std::string& errMsg)
+    {
+        bool isClient = false;
+        bool initialized = init(std::string(), isClient, errMsg);
+        if (!initialized)
+        {
+            close();
+            return false;
+        }
+
+        mbedtls_ssl_set_bio(&_ssl, &_sockfd, mbedtls_net_send, mbedtls_net_recv, NULL);
+
+        int res;
+        do
+        {
+            std::lock_guard<std::mutex> lock(_mutex);
+            res = mbedtls_ssl_handshake(&_ssl);
+        } while (res == MBEDTLS_ERR_SSL_WANT_READ || res == MBEDTLS_ERR_SSL_WANT_WRITE);
+
+        if (res != 0)
+        {
+            char buf[256];
+            mbedtls_strerror(res, buf, sizeof(buf));
+
+            errMsg = "error in handshake : ";
+            errMsg += buf;
+
+            if (res == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED)
+            {
+                char verifyBuf[512];
+                uint32_t flags = mbedtls_ssl_get_verify_result(&_ssl);
+
+                mbedtls_x509_crt_verify_info(verifyBuf, sizeof(verifyBuf), "  ! ", flags);
+                errMsg += " : ";
+                errMsg += verifyBuf;
+            }
+
+            close();
+            return false;
+        }
+
+        return true;
+    }
+
     bool SocketMbedTLS::connect(const std::string& host,
                                 int port,
                                 std::string& errMsg,
@@ -116,7 +181,8 @@ namespace ix
             if (_sockfd == -1) return false;
         }
 
-        bool initialized = init(host, errMsg);
+        bool isClient = true;
+        bool initialized = init(host, isClient, errMsg);
         if (!initialized)
         {
             close();
@@ -156,6 +222,7 @@ namespace ix
         mbedtls_ctr_drbg_free(&_ctr_drbg);
         mbedtls_entropy_free(&_entropy);
         mbedtls_x509_crt_free(&_cacert);
+        mbedtls_x509_crt_free(&_cert);
 
         Socket::close();
     }

ixwebsocket/IXSocketMbedTLS.h

@@ -26,6 +26,8 @@ namespace ix
         SocketMbedTLS(const SocketTLSOptions& tlsOptions, int fd = -1);
         ~SocketMbedTLS();
 
+        virtual bool accept(std::string& errMsg) final;
+
         virtual bool connect(const std::string& host,
                              int port,
                              std::string& errMsg,
@@ -42,11 +44,13 @@ namespace ix
         mbedtls_entropy_context _entropy;
         mbedtls_ctr_drbg_context _ctr_drbg;
         mbedtls_x509_crt _cacert;
+        mbedtls_x509_crt _cert;
+        mbedtls_pk_context _pkey;
 
         std::mutex _mutex;
         SocketTLSOptions _tlsOptions;
 
-        bool init(const std::string& host, std::string& errMsg);
+        bool init(const std::string& host, bool isClient, std::string& errMsg);
         void initMBedTLS();
     };
 

ixwebsocket/IXSocketTLSOptions.cpp

@@ -8,6 +8,7 @@
 
 #include <assert.h>
 #include <fstream>
+#include <sstream>
 
 namespace ix
 {
@@ -71,4 +72,16 @@ namespace ix
     {
         return _errMsg;
     }
+
+    std::string SocketTLSOptions::getDescription() const
+    {
+        std::stringstream ss;
+        ss << "TLS Options:" << std::endl;
+        ss << "  certFile = " << certFile << std::endl;
+        ss << "  keyFile  = " << keyFile << std::endl;
+        ss << "  caFile   = " << caFile << std::endl;
+        ss << "  ciphers  = " << ciphers << std::endl;
+        ss << "  ciphers  = " << ciphers << std::endl;
+        return ss.str();
+    }
 } // namespace ix

ixwebsocket/IXSocketTLSOptions.h

@@ -43,8 +43,10 @@ namespace ix
 
         const std::string& getErrorMsg() const;
 
+        std::string getDescription() const;
+
     private:
         mutable std::string _errMsg;
-        mutable bool _validated;
+        mutable bool _validated = false;
     };
 } // namespace ix

ixwebsocket/IXWebSocketHandshake.cpp

@@ -178,8 +178,8 @@ namespace ix
         if (status != 101)
         {
             std::stringstream ss;
-            ss << "Got bad status connecting to " << host << ":" << port << ", status: " << status
-               << ", HTTP Status line: " << line;
+            ss << "Expecting status 101 (Switching Protocol), got " << status
+               << " status connecting to " << host << ":" << port << ", HTTP Status line: " << line;
             return WebSocketInitResult(false, status, ss.str());
         }
 

ixwebsocket/IXWebSocketTransport.cpp

@@ -77,6 +77,7 @@ namespace ix
 
     WebSocketTransport::WebSocketTransport()
         : _useMask(true)
+        , _blockingSend(false)
         , _compressedMessage(false)
         , _readyState(ReadyState::CLOSED)
         , _closeCode(WebSocketCloseConstants::kInternalErrorCode)
@@ -143,7 +144,9 @@ namespace ix
 
         if (!UrlParser::parse(url, protocol, host, path, query, port))
         {
-            return WebSocketInitResult(false, 0, std::string("Could not parse URL ") + url);
+            std::stringstream ss;
+            ss << "Could not parse url: '" << url << "'";
+            return WebSocketInitResult(false, 0, ss.str());
         }
 
         std::string errorMsg;
@@ -178,6 +181,7 @@ namespace ix
 
         // Server should not mask the data it sends to the client
         _useMask = false;
+        _blockingSend = true;
 
         _socket = socket;
 
@@ -339,22 +343,9 @@ namespace ix
         // there can be a lot of it for large messages.
         if (pollResult == PollResultType::SendRequest)
         {
-            while (!isSendBufferEmpty() && !_requestInitCancellation)
+            if (!flushSendBuffer())
             {
-                // Wait with a 10ms timeout until the socket is ready to write.
-                // This way we are not busy looping
-                PollResultType result = _socket->isReadyToWrite(10);
-
-                if (result == PollResultType::Error)
-                {
-                    closeSocket();
-                    setReadyState(ReadyState::CLOSED);
-                    break;
-                }
-                else if (result == PollResultType::ReadyForWrite)
-                {
-                    sendOnSocket();
-                }
+                return PollResult::CannotFlushSendBuffer;
             }
         }
         else if (pollResult == PollResultType::ReadyForRead)
@@ -924,13 +915,21 @@ namespace ix
             }
         }
 
+        bool success = true;
+
         // Request to flush the send buffer on the background thread if it isn't empty
         if (!isSendBufferEmpty())
         {
             _socket->wakeUpFromPoll(Socket::kSendRequest);
+
+            // FIXME: we should have a timeout when sending large messages: see #131
+            if (_blockingSend && !flushSendBuffer())
+            {
+                success = false;
+            }
         }
 
-        return WebSocketSendInfo(true, compressionError, payloadSize, wireSize);
+        return WebSocketSendInfo(success, compressionError, payloadSize, wireSize);
     }
 
     void WebSocketTransport::sendFragment(wsheader_type::opcode_type type,
@@ -1168,4 +1167,27 @@ namespace ix
         return _txbuf.size();
     }
 
+    bool WebSocketTransport::flushSendBuffer()
+    {
+        while (!isSendBufferEmpty() && !_requestInitCancellation)
+        {
+            // Wait with a 10ms timeout until the socket is ready to write.
+            // This way we are not busy looping
+            PollResultType result = _socket->isReadyToWrite(10);
+
+            if (result == PollResultType::Error)
+            {
+                closeSocket();
+                setReadyState(ReadyState::CLOSED);
+                return false;
+            }
+            else if (result == PollResultType::ReadyForWrite)
+            {
+                sendOnSocket();
+            }
+        }
+
+        return true;
+    }
+
 } // namespace ix

ixwebsocket/IXWebSocketTransport.h

@@ -61,7 +61,8 @@ namespace ix
         enum class PollResult
         {
             Succeeded,
-            AbnormalClose
+            AbnormalClose,
+            CannotFlushSendBuffer
         };
 
         using OnMessageCallback =
@@ -135,6 +136,10 @@ namespace ix
         // client should mask but server should not
         std::atomic<bool> _useMask;
 
+        // Tells whether we should flush the send buffer before
+        // saying that a send is complete. This is the mode for server code.
+        std::atomic<bool> _blockingSend;
+
         // Buffer for reading from our socket. That buffer is never resized.
         std::vector<uint8_t> _readbuf;
 
@@ -238,6 +243,7 @@ namespace ix
                                                size_t closeWireSize,
                                                bool remote);
 
+        bool flushSendBuffer();
         void sendOnSocket();
         WebSocketSendInfo sendData(wsheader_type::opcode_type type,
                                    const std::string& message,

ixwebsocket/IXWebSocketVersion.h

@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "7.5.0"
+#define IX_WEBSOCKET_VERSION "7.6.4"

makefile

@@ -30,7 +30,7 @@ uninstall:
 	xargs rm -fv < build/install_manifest.txt
 
 tag:
-	git tag v"`cat DOCKER_VERSION`"
+	git tag v"`sh tools/extract_version.sh`"
 
 xcode:
 	cmake -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_TEST=1 -GXcode && open ixwebsocket.xcodeproj
@@ -40,12 +40,15 @@ xcode_openssl:
 
 .PHONY: docker
 
-NAME   := bsergean/ws
-TAG    := $(shell cat DOCKER_VERSION)
+NAME   := ${DOCKER_REPO}/ws
+TAG    := $(shell sh tools/extract_version.sh)
 IMG    := ${NAME}:${TAG}
 LATEST := ${NAME}:latest
 BUILD  := ${NAME}:build
 
+print_version:
+	@echo 'IXWebSocket version =>' ${TAG}
+
 docker_test:
 	docker build -f docker/Dockerfile.debian -t bsergean/ixwebsocket_test:build .
 

test/IXCobraChatTest.cpp

@@ -34,10 +34,10 @@ namespace
         });
     }
 
-    class SatoriChat
+    class CobraChat
     {
     public:
-        SatoriChat(const std::string& user,
+        CobraChat(const std::string& user,
                    const std::string& session,
                    const std::string& endpoint);
 
@@ -72,9 +72,9 @@ namespace
         std::mutex _logMutex;
     };
 
-    SatoriChat::SatoriChat(const std::string& user,
-                           const std::string& session,
-                           const std::string& endpoint)
+    CobraChat::CobraChat(const std::string& user,
+                         const std::string& session,
+                         const std::string& endpoint)
         : _user(user)
         , _session(session)
         , _endpoint(endpoint)
@@ -83,34 +83,34 @@ namespace
     {
     }
 
-    void SatoriChat::start()
+    void CobraChat::start()
     {
-        _thread = std::thread(&SatoriChat::run, this);
+        _thread = std::thread(&CobraChat::run, this);
     }
 
-    void SatoriChat::stop()
+    void CobraChat::stop()
     {
         _stop = true;
         _thread.join();
     }
 
-    bool SatoriChat::isReady() const
+    bool CobraChat::isReady() const
     {
         return _connectedAndSubscribed;
     }
 
-    size_t SatoriChat::getReceivedMessagesCount() const
+    size_t CobraChat::getReceivedMessagesCount() const
     {
         return _receivedQueue.size();
     }
 
-    bool SatoriChat::hasPendingMessages() const
+    bool CobraChat::hasPendingMessages() const
     {
         std::unique_lock<std::mutex> lock(_queue_mutex);
         return !_publish_queue.empty();
     }
 
-    Json::Value SatoriChat::popMessage()
+    Json::Value CobraChat::popMessage()
     {
         std::unique_lock<std::mutex> lock(_queue_mutex);
         auto msg = _publish_queue.front();
@@ -121,7 +121,7 @@ namespace
     //
     // Callback to handle received messages, that are printed on the console
     //
-    void SatoriChat::subscribe(const std::string& channel)
+    void CobraChat::subscribe(const std::string& channel)
     {
         std::string filter;
         _conn.subscribe(channel, filter, [this](const Json::Value& msg) {
@@ -151,7 +151,7 @@ namespace
         });
     }
 
-    void SatoriChat::sendMessage(const std::string& text)
+    void CobraChat::sendMessage(const std::string& text)
     {
         Json::Value msg;
         msg["user"] = _user;
@@ -166,16 +166,21 @@ namespace
     // Do satori communication on a background thread, where we can have
     // something like an event loop that publish, poll and receive data
     //
-    void SatoriChat::run()
+    void CobraChat::run()
     {
         // "chat" conf
         std::string appkey("FC2F10139A2BAc53BB72D9db967b024f");
         std::string channel = _session;
         std::string role = "_sub";
         std::string secret = "66B1dA3ED5fA074EB5AE84Dd8CE3b5ba";
+        SocketTLSOptions socketTLSOptions;
 
-        _conn.configure(
-            appkey, _endpoint, role, secret, ix::WebSocketPerMessageDeflateOptions(true));
+        _conn.configure(appkey,
+                        _endpoint,
+                        role,
+                        secret,
+                        ix::WebSocketPerMessageDeflateOptions(true),
+                        socketTLSOptions);
         _conn.connect();
 
         _conn.setEventCallback([this, channel](ix::CobraConnectionEventType eventType,
@@ -280,8 +285,8 @@ TEST_CASE("Cobra_chat", "[cobra_chat]")
         ss << "ws://localhost:" << port;
         std::string endpoint = ss.str();
 
-        SatoriChat chatA("jean", session, endpoint);
-        SatoriChat chatB("paul", session, endpoint);
+        CobraChat chatA("jean", session, endpoint);
+        CobraChat chatB("paul", session, endpoint);
 
         chatA.start();
         chatB.start();

test/IXCobraMetricsPublisherTest.cpp

@@ -62,11 +62,14 @@ namespace
         gMessageCount = 0;
 
         ix::CobraConnection conn;
+        SocketTLSOptions socketTLSOptions;
+
         conn.configure(APPKEY,
                        endpoint,
                        SUBSCRIBER_ROLE,
                        SUBSCRIBER_SECRET,
-                       ix::WebSocketPerMessageDeflateOptions(true));
+                       ix::WebSocketPerMessageDeflateOptions(true),
+                       socketTLSOptions);
         conn.connect();
 
         conn.setEventCallback([&conn](ix::CobraConnectionEventType eventType,
@@ -202,9 +205,15 @@ TEST_CASE("Cobra_Metrics_Publisher", "[cobra]")
 
     ix::CobraMetricsPublisher cobraMetricsPublisher;
 
+    SocketTLSOptions socketTLSOptions;
     bool perMessageDeflate = true;
-    cobraMetricsPublisher.configure(
-        APPKEY, endpoint, CHANNEL, PUBLISHER_ROLE, PUBLISHER_SECRET, perMessageDeflate);
+    cobraMetricsPublisher.configure(APPKEY,
+                                    endpoint,
+                                    CHANNEL,
+                                    PUBLISHER_ROLE,
+                                    PUBLISHER_SECRET,
+                                    perMessageDeflate,
+                                    socketTLSOptions);
     cobraMetricsPublisher.setSession(uuid4());
     cobraMetricsPublisher.enable(true); // disabled by default, needs to be enabled to be active
 

third_party/spdlog/CMakeLists.txt

@@ -63,31 +63,43 @@ option(SPDLOG_SANITIZE_ADDRESS "Enable address sanitizer in tests" OFF)
 # install options
 option(SPDLOG_INSTALL "Generate the install target" ${SPDLOG_MASTER_PROJECT})
 option(SPDLOG_FMT_EXTERNAL "Use external fmt library instead of bundled" OFF)
-
-if(WIN32)
-	option(SPDLOG_WCHAR_SUPPORT "Support wchar api" OFF)
-    option(SPDLOG_WCHAR_FILENAMES "Support wchar filenames" OFF)    
-endif()
-
+option(SPDLOG_FMT_EXTERNAL_HO "Use external fmt header-only library instead of bundled" OFF)
 option(SPDLOG_NO_EXCEPTIONS "Compile with -fno-exceptions. Call abort() on any spdlog exceptions" OFF)
 
+if (SPDLOG_FMT_EXTERNAL AND SPDLOG_FMT_EXTERNAL_HO)
+    message(FATAL_ERROR "SPDLOG_FMT_EXTERNAL and SPDLOG_FMT_EXTERNAL_HO are mutually exclusive")
+endif()
+
+# misc tweakme options
+if(WIN32)
+    option(SPDLOG_WCHAR_SUPPORT "Support wchar api" OFF)
+    option(SPDLOG_WCHAR_FILENAMES "Support wchar filenames" OFF)
+endif()
+if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+    option(SPDLOG_CLOCK_COARSE "Use the much faster (but much less accurate) CLOCK_REALTIME_COARSE instead of the regular clock," OFF)
+endif()
+
+option(SPDLOG_PREVENT_CHILD_FD "Prevent from child processes to inherit log file descriptors" OFF)
+option(SPDLOG_NO_THREAD_ID "prevent spdlog from querying the thread id on each log call if thread id is not needed" OFF)
+option(SPDLOG_NO_TLS "prevent spdlog from using thread local storage" OFF)
+option(SPDLOG_NO_ATOMIC_LEVELS "prevent spdlog from using of std::atomic log levels (use only if your code never modifies log levels concurrently" OFF)
 
 find_package(Threads REQUIRED)
-
 message(STATUS "Build type: " ${CMAKE_BUILD_TYPE})
-
 #---------------------------------------------------------------------------------------
 # Static/Shared library (shared not supported in windows yet)
 #---------------------------------------------------------------------------------------
 set(SPDLOG_SRCS
         src/spdlog.cpp
         src/stdout_sinks.cpp
-        src/fmt.cpp
         src/color_sinks.cpp
         src/file_sinks.cpp
         src/async.cpp)
 
-set(SPDLOG_CFLAGS "${PROJECT_NAME}")
+
+if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
+    list(APPEND SPDLOG_SRCS src/fmt.cpp)
+endif()
 
 if (SPDLOG_BUILD_SHARED)
     if(WIN32)
@@ -123,22 +135,30 @@ target_link_libraries(spdlog_header_only INTERFACE Threads::Threads)
 
 
 #---------------------------------------------------------------------------------------
-# Use fmt package if using exertnal fmt
+# Use fmt package if using external fmt
 #---------------------------------------------------------------------------------------
-if(SPDLOG_FMT_EXTERNAL)
+if(SPDLOG_FMT_EXTERNAL OR SPDLOG_FMT_EXTERNAL_HO)
     if (NOT TARGET fmt::fmt)
         find_package(fmt REQUIRED)
     endif ()
-
-    set(SPDLOG_CFLAGS "${SPDLOG_CFLAGS} -DSPDLOG_FMT_EXTERNAL")
-
     target_compile_definitions(spdlog PUBLIC SPDLOG_FMT_EXTERNAL)
-    target_link_libraries(spdlog PUBLIC fmt::fmt)
-
     target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_FMT_EXTERNAL)
-    target_link_libraries(spdlog_header_only INTERFACE fmt::fmt)
+
+    # use external fmt-header-nly
+    if(SPDLOG_FMT_EXTERNAL_HO)
+        target_link_libraries(spdlog PUBLIC fmt::fmt-header-only)
+        target_link_libraries(spdlog_header_only INTERFACE fmt::fmt-header-only)
+    else() # use external compile fmt
+        target_link_libraries(spdlog PUBLIC fmt::fmt)
+        target_link_libraries(spdlog_header_only INTERFACE fmt::fmt)
+    endif()
+
+    set(PKG_CONFIG_REQUIRES fmt) # add dependency to pkg-config
 endif()
 
+#---------------------------------------------------------------------------------------
+# Misc definitions according to tweak options
+#---------------------------------------------------------------------------------------
 if(SPDLOG_WCHAR_SUPPORT)
 	target_compile_definitions(spdlog PUBLIC SPDLOG_WCHAR_TO_UTF8_SUPPORT)
 	target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_WCHAR_TO_UTF8_SUPPORT)
@@ -159,6 +179,31 @@ if(SPDLOG_WCHAR_SUPPORT)
     endif()
 endif()
 
+if(SPDLOG_CLOCK_COARSE)
+    target_compile_definitions(spdlog PRIVATE SPDLOG_CLOCK_COARSE)
+    target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_CLOCK_COARSE)
+endif()
+
+if(SPDLOG_PREVENT_CHILD_FD)
+    target_compile_definitions(spdlog PRIVATE SPDLOG_PREVENT_CHILD_FD)
+    target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_PREVENT_CHILD_FD)
+endif()
+
+if(SPDLOG_NO_THREAD_ID)
+    target_compile_definitions(spdlog PRIVATE SPDLOG_NO_THREAD_ID)
+    target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_NO_THREAD_ID)
+endif()
+
+if(SPDLOG_NO_TLS)
+    target_compile_definitions(spdlog PRIVATE SPDLOG_NO_TLS)
+    target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_NO_TLS)
+endif()
+
+if(SPDLOG_NO_ATOMIC_LEVELS)
+    target_compile_definitions(spdlog PUBLIC SPDLOG_NO_ATOMIC_LEVELS)
+    target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_NO_ATOMIC_LEVELS)
+endif()
+
 
 #---------------------------------------------------------------------------------------
 # Build binaries
@@ -188,7 +233,7 @@ if (SPDLOG_INSTALL)
     set(project_config_out "${CMAKE_CURRENT_BINARY_DIR}/spdlogConfig.cmake")
     set(config_targets_file "spdlogConfigTargets.cmake")
     set(version_config_file "${CMAKE_CURRENT_BINARY_DIR}/spdlogConfigVersion.cmake")
-    set(export_dest_dir "${CMAKE_INSTALL_LIBDIR}/spdlog/cmake")
+    set(export_dest_dir "${CMAKE_INSTALL_LIBDIR}/cmake/spdlog")
     set(pkgconfig_install_dir "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
     set(pkg_config "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc")
 
@@ -196,19 +241,25 @@ if (SPDLOG_INSTALL)
     # Include files
     #---------------------------------------------------------------------------------------
     install(DIRECTORY include/ DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}" PATTERN "fmt/bundled" EXCLUDE)
-    install(TARGETS spdlog spdlog_header_only EXPORT spdlog DESTINATION "${CMAKE_INSTALL_LIBDIR}/spdlog")
+    install(TARGETS spdlog spdlog_header_only EXPORT spdlog DESTINATION "${CMAKE_INSTALL_LIBDIR}")
 
-    if(NOT SPDLOG_FMT_EXTERNAL)
+    if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
         install(DIRECTORY include/${PROJECT_NAME}/fmt/bundled/
                 DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}/fmt/bundled/")
     endif()
 
     #---------------------------------------------------------------------------------------
-    # Package and version files
+    # Install pkg-config file
     #---------------------------------------------------------------------------------------
+    get_target_property(PKG_CONFIG_DEFINES spdlog INTERFACE_COMPILE_DEFINITIONS)
+    string(REPLACE ";" " -D" PKG_CONFIG_DEFINES "${PKG_CONFIG_DEFINES}")
+    string(CONCAT PKG_CONFIG_DEFINES "-D" "${PKG_CONFIG_DEFINES}")
     configure_file("cmake/${PROJECT_NAME}.pc.in" "${pkg_config}" @ONLY)
     install(FILES "${pkg_config}" DESTINATION "${pkgconfig_install_dir}")
 
+    #---------------------------------------------------------------------------------------
+    # Install CMake config files
+    #---------------------------------------------------------------------------------------
     install(EXPORT spdlog
             DESTINATION ${export_dest_dir}
             NAMESPACE spdlog::
@@ -216,6 +267,7 @@ if (SPDLOG_INSTALL)
 
     include(CMakePackageConfigHelpers)
     configure_file("${project_config_in}" "${project_config_out}" @ONLY)
+
     write_basic_package_version_file("${version_config_file}" COMPATIBILITY SameMajorVersion)
     install(FILES
             "${project_config_out}"
@@ -227,3 +279,4 @@ if (SPDLOG_INSTALL)
     include(cmake/spdlogCPack.cmake)
 
 endif ()
+

third_party/spdlog/README.md

@@ -30,6 +30,8 @@ $ cmake .. && make -j
 * Gentoo: `emerge dev-libs/spdlog`
 * Arch Linux: `yaourt -S spdlog-git`
 * vcpkg: `vcpkg install spdlog`
+* conan: `spdlog/[>=1.4.1]@bincrafters/stable`
+
 
 ## Features
 * Very fast (see [benchmarks](#benchmarks) below).

third_party/spdlog/appveyor.yml

@@ -1,19 +1,25 @@
 version: 1.0.{build}
-image: Visual Studio 2015
+image: Visual Studio 2017
 environment:
   matrix:
-  - GENERATOR: '"MinGW Makefiles"'
-    BUILD_TYPE: Debug
-  - GENERATOR: '"MinGW Makefiles"'
-    BUILD_TYPE: Release
   - GENERATOR: '"Visual Studio 14 2015"'
     BUILD_TYPE: Debug
+    WCHAR: 'OFF'
   - GENERATOR: '"Visual Studio 14 2015"'
     BUILD_TYPE: Release
+    WCHAR: 'ON'
   - GENERATOR: '"Visual Studio 14 2015 Win64"'
     BUILD_TYPE: Debug
+    WCHAR: 'ON'
   - GENERATOR: '"Visual Studio 14 2015 Win64"'
     BUILD_TYPE: Release
+    WCHAR: 'ON'
+  - GENERATOR: '"Visual Studio 15 2017 Win64"'
+    BUILD_TYPE: Debug
+    WCHAR: 'ON'
+  - GENERATOR: '"Visual Studio 15 2017 Win64"'
+    BUILD_TYPE: Release
+    WCHAR: 'OFf'
 build_script:
 - cmd: >-
     set
@@ -22,11 +28,9 @@ build_script:
     
     cd build 
 
-    set PATH=%PATH:C:\Program Files\Git\usr\bin;=%
+    set PATH=%PATH%:C:\Program Files\Git\usr\bin
     
-    set PATH=C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin;%PATH%
-
-    cmake .. -G %GENERATOR% -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DSPDLOG_WCHAR_SUPPORT=ON -DSPDLOG_BUILD_EXAMPLE=ON -DSPDLOG_BUILD_EXAMPLE_HO=ON -DSPDLOG_BUILD_TESTS=ON -DSPDLOG_BUILD_TESTS_HO=OFF
+    cmake .. -G %GENERATOR% -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DSPDLOG_WCHAR_SUPPORT=%WCHAR% -DSPDLOG_BUILD_EXAMPLE=ON -DSPDLOG_BUILD_EXAMPLE_HO=ON -DSPDLOG_BUILD_TESTS=ON -DSPDLOG_BUILD_TESTS_HO=OFF
 
     cmake --build . --config %BUILD_TYPE%
 

third_party/spdlog/bench/CMakeLists.txt

@@ -24,5 +24,3 @@ target_link_libraries(latency PRIVATE benchmark::benchmark spdlog::spdlog)
 
 add_executable(formatter-bench formatter-bench.cpp)
 target_link_libraries(formatter-bench PRIVATE benchmark::benchmark spdlog::spdlog)
-
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")

third_party/spdlog/bench/latency.cpp

@@ -16,26 +16,6 @@
 #include "spdlog/sinks/null_sink.h"
 #include "spdlog/sinks/rotating_file_sink.h"
 
-void prepare_logdir()
-{
-    spdlog::info("Preparing latency_logs directory..");
-#ifdef _WIN32
-    system("if not exist logs mkdir latency_logs");
-    system("del /F /Q logs\\*");
-#else
-    auto rv = system("mkdir -p latency_logs");
-    if (rv != 0)
-    {
-        throw std::runtime_error("Failed to mkdir -p latency_logs");
-    }
-    rv = system("rm -f latency_logs/*");
-    if (rv != 0)
-    {
-        throw std::runtime_error("Failed to rm -f latency_logs/*");
-    }
-#endif
-}
-
 void bench_c_string(benchmark::State &state, std::shared_ptr<spdlog::logger> logger)
 {
     const char *msg = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra metus cursus "
@@ -83,8 +63,6 @@ int main(int argc, char *argv[])
     size_t rotating_files = 5;
     int n_threads = benchmark::CPUInfo::Get().num_cpus;
 
-    prepare_logdir();
-
     // disabled loggers
     auto disabled_logger = std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_mt>());
     disabled_logger->set_level(spdlog::level::off);

third_party/spdlog/bench/meson.build

@@ -12,4 +12,3 @@ foreach i : bench_matrix
   benchmark('bench_' + i[0], bench_exe, args: i[2])
 endforeach
 
-run_command(find_program('mkdir'), meson.current_build_dir() + '/logs')

third_party/spdlog/cmake/spdlog.pc.in

@@ -7,5 +7,7 @@ Name: lib@PROJECT_NAME@
 Description: Fast C++ logging library.
 URL: https://github.com/gabime/@PROJECT_NAME@
 Version: @SPDLOG_VERSION@
-CFlags: -I${includedir}/@SPDLOG_CFLAGS@
-Libs: -L${libdir}/@PROJECT_NAME@ -l@PROJECT_NAME@
+CFlags: -I${includedir} @PKG_CONFIG_DEFINES@
+Libs: -L${libdir} -lspdlog -pthread
+Requires: @PKG_CONFIG_REQUIRES@
+

third_party/spdlog/cmake/utils.cmake

@@ -29,7 +29,10 @@ function(spdlog_enable_warnings target_name)
     target_compile_options(${target_name} PRIVATE
         $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:
             -Wall -Wextra -Wconversion -pedantic -Wfatal-errors>
-        $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX>)
+        $<$<CXX_COMPILER_ID:MSVC>:/W4>)
+		if(MSVC_VERSION GREATER_EQUAL  1910)  #Allow non fatal security wanrnings for msvc 2015 
+			target_compile_options(${target_name} PRIVATE /WX)
+		endif()
 endfunction()
 
 

third_party/spdlog/example/CMakeLists.txt

@@ -25,5 +25,3 @@ if(SPDLOG_BUILD_EXAMPLE_HO)
     target_link_libraries(example_header_only PRIVATE spdlog::spdlog_header_only)
 endif()
 
-# Create logs directory
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")

third_party/spdlog/example/example.cpp

@@ -143,7 +143,7 @@ void async_example()
 #include "spdlog/fmt/bin_to_hex.h"
 void binary_example()
 {
-    std::vector<char> buf;
+    std::vector<char> buf(80);
     for (int i = 0; i < 80; i++)
     {
         buf.push_back(static_cast<char>(i & 0xff));

third_party/spdlog/example/meson.build

@@ -1,5 +1,4 @@
 executable('example', 'example.cpp', dependencies: spdlog_dep)
 executable('example_header_only', 'example.cpp', dependencies: spdlog_headeronly_dep)
-run_command(find_program('mkdir'), meson.current_build_dir() + '/logs')
 
 

third_party/spdlog/include/spdlog/async.h

@@ -6,7 +6,7 @@
 //
 // Async logging using global thread pool
 // All loggers created here share same global thread pool.
-// Each log message is pushed to a queue along withe a shared pointer to the
+// Each log message is pushed to a queue along with a shared pointer to the
 // logger.
 // If a logger deleted while having pending messages in the queue, it's actual
 // destruction will defer
@@ -14,9 +14,9 @@
 // This is because each message in the queue holds a shared_ptr to the
 // originating logger.
 
-#include "spdlog/async_logger.h"
-#include "spdlog/details/registry.h"
-#include "spdlog/details/thread_pool.h"
+#include <spdlog/async_logger.h>
+#include <spdlog/details/registry.h>
+#include <spdlog/details/thread_pool.h>
 
 #include <memory>
 #include <mutex>

third_party/spdlog/include/spdlog/async_logger-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/async_logger.h"
+#include <spdlog/async_logger.h>
 #endif
 
-#include "spdlog/sinks/sink.h"
-#include "spdlog/details/thread_pool.h"
+#include <spdlog/sinks/sink.h>
+#include <spdlog/details/thread_pool.h>
 
 #include <memory>
 #include <string>

third_party/spdlog/include/spdlog/async_logger.h

@@ -14,7 +14,7 @@
 // Upon destruction, logs all remaining messages in the queue before
 // destructing..
 
-#include "spdlog/logger.h"
+#include <spdlog/logger.h>
 
 namespace spdlog {
 

third_party/spdlog/include/spdlog/common-inl.h

@@ -4,7 +4,7 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 #endif
 
 namespace spdlog {

third_party/spdlog/include/spdlog/common.h

@@ -3,8 +3,8 @@
 
 #pragma once
 
-#include "spdlog/tweakme.h"
-#include "spdlog/details/null_mutex.h"
+#include <spdlog/tweakme.h>
+#include <spdlog/details/null_mutex.h>
 
 #include <atomic>
 #include <chrono>
@@ -35,7 +35,7 @@
 #define SPDLOG_INLINE inline
 #endif
 
-#include "spdlog/fmt/fmt.h"
+#include <spdlog/fmt/fmt.h>
 
 // visual studio upto 2013 does not support noexcept nor constexpr
 #if defined(_MSC_VER) && (_MSC_VER < 1900)
@@ -62,7 +62,7 @@
 #endif
 
 #ifndef SPDLOG_FUNCTION
-#define SPDLOG_FUNCTION __FUNCTION__
+#define SPDLOG_FUNCTION static_cast<const char *>(__FUNCTION__)
 #endif
 
 #ifdef SPDLOG_NO_EXCEPTIONS

third_party/spdlog/include/spdlog/details/backtracer-inl.h

@@ -4,7 +4,7 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/backtracer.h"
+#include <spdlog/details/backtracer.h>
 #endif
 namespace spdlog {
 namespace details {
@@ -26,7 +26,7 @@ SPDLOG_INLINE backtracer &backtracer::operator=(backtracer other)
 {
     std::lock_guard<std::mutex> lock(mutex_);
     enabled_ = other.enabled();
-    messages_ = other.messages_;
+    messages_ = std::move(other.messages_);
     return *this;
 }
 
@@ -48,11 +48,6 @@ SPDLOG_INLINE bool backtracer::enabled() const
     return enabled_.load(std::memory_order_relaxed);
 }
 
-SPDLOG_INLINE backtracer::operator bool() const
-{
-    return enabled();
-}
-
 SPDLOG_INLINE void backtracer::push_back(const log_msg &msg)
 {
     std::lock_guard<std::mutex> lock{mutex_};

third_party/spdlog/include/spdlog/details/backtracer.h

@@ -3,8 +3,8 @@
 
 #pragma once
 
-#include "spdlog/details/log_msg_buffer.h"
-#include "spdlog/details/circular_q.h"
+#include <spdlog/details/log_msg_buffer.h>
+#include <spdlog/details/circular_q.h>
 
 #include <atomic>
 #include <mutex>
@@ -31,7 +31,6 @@ public:
     void enable(size_t size);
     void disable();
     bool enabled() const;
-    explicit operator bool() const;
     void push_back(const log_msg &msg);
 
     // pop all items in the q and apply the given fun on each of them.

third_party/spdlog/include/spdlog/details/circular_q.h

@@ -1,10 +1,11 @@
 // Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
 // Distributed under the MIT License (http://opensource.org/licenses/MIT)
 
-// cirucal q view of std::vector.
+// circular q view of std::vector.
 #pragma once
 
 #include <vector>
+#include <cassert>
 
 namespace spdlog {
 namespace details {
@@ -72,6 +73,27 @@ public:
         return v_[head_];
     }
 
+    // Return number of elements actually stored
+    size_t size() const
+    {
+        if (tail_ >= head_)
+        {
+            return tail_ - head_;
+        }
+        else
+        {
+            return max_items_ - (head_ - tail_);
+        }
+    }
+
+    // Return const reference to item by index.
+    // If index is out of range 0…size()-1, the behavior is undefined.
+    const T &at(size_t i) const
+    {
+        assert(i < size());
+        return v_[(head_ + i) % max_items_];
+    }
+
     // Pop item from front.
     // If there are no elements in the container, the behavior is undefined.
     void pop_front()

third_party/spdlog/include/spdlog/details/console_globals.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#include "spdlog/details/null_mutex.h"
+#include <spdlog/details/null_mutex.h>
 #include <mutex>
 
 namespace spdlog {

third_party/spdlog/include/spdlog/details/file_helper-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/file_helper.h"
+#include <spdlog/details/file_helper.h>
 #endif
 
-#include "spdlog/details/os.h"
-#include "spdlog/common.h"
+#include <spdlog/details/os.h>
+#include <spdlog/common.h>
 
 #include <cerrno>
 #include <chrono>
@@ -28,28 +28,31 @@ SPDLOG_INLINE file_helper::~file_helper()
 SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate)
 {
     close();
+    filename_ = fname;
     auto *mode = truncate ? SPDLOG_FILENAME_T("wb") : SPDLOG_FILENAME_T("ab");
-    _filename = fname;
-    for (int tries = 0; tries < open_tries; ++tries)
+
+    for (int tries = 0; tries < open_tries_; ++tries)
     {
+        // create containing folder if not exists already.
+        os::create_dir(os::dir_name(fname));
         if (!os::fopen_s(&fd_, fname, mode))
         {
             return;
         }
 
-        details::os::sleep_for_millis(open_interval);
+        details::os::sleep_for_millis(open_interval_);
     }
 
-    SPDLOG_THROW(spdlog_ex("Failed opening file " + os::filename_to_str(_filename) + " for writing", errno));
+    SPDLOG_THROW(spdlog_ex("Failed opening file " + os::filename_to_str(filename_) + " for writing", errno));
 }
 
 SPDLOG_INLINE void file_helper::reopen(bool truncate)
 {
-    if (_filename.empty())
+    if (filename_.empty())
     {
         SPDLOG_THROW(spdlog_ex("Failed re opening file - was not opened before"));
     }
-    open(_filename, truncate);
+    this->open(filename_, truncate);
 }
 
 SPDLOG_INLINE void file_helper::flush()
@@ -72,7 +75,7 @@ SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf)
     auto data = buf.data();
     if (std::fwrite(data, 1, msg_size, fd_) != msg_size)
     {
-        SPDLOG_THROW(spdlog_ex("Failed writing to file " + os::filename_to_str(_filename), errno));
+        SPDLOG_THROW(spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno));
     }
 }
 
@@ -80,19 +83,14 @@ SPDLOG_INLINE size_t file_helper::size() const
 {
     if (fd_ == nullptr)
     {
-        SPDLOG_THROW(spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(_filename)));
+        SPDLOG_THROW(spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(filename_)));
     }
     return os::filesize(fd_);
 }
 
 SPDLOG_INLINE const filename_t &file_helper::filename() const
 {
-    return _filename;
-}
-
-SPDLOG_INLINE bool file_helper::file_exists(const filename_t &fname)
-{
-    return os::file_exists(fname);
+    return filename_;
 }
 
 //
@@ -119,7 +117,7 @@ SPDLOG_INLINE std::tuple<filename_t, filename_t> file_helper::split_by_extension
         return std::make_tuple(fname, filename_t());
     }
 
-    // treat casese like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
+    // treat cases like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
     auto folder_index = fname.rfind(details::os::folder_sep);
     if (folder_index != filename_t::npos && folder_index >= ext_index - 1)
     {
@@ -129,5 +127,6 @@ SPDLOG_INLINE std::tuple<filename_t, filename_t> file_helper::split_by_extension
     // finally - return a valid base and extension tuple
     return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
 }
+
 } // namespace details
 } // namespace spdlog

third_party/spdlog/include/spdlog/details/file_helper.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 #include <tuple>
 
 namespace spdlog {
@@ -29,7 +29,6 @@ public:
     void write(const memory_buf_t &buf);
     size_t size() const;
     const filename_t &filename() const;
-    static bool file_exists(const filename_t &fname);
 
     //
     // return file path and its extension:
@@ -47,10 +46,10 @@ public:
     static std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname);
 
 private:
-    const int open_tries = 5;
-    const int open_interval = 10;
+    const int open_tries_ = 5;
+    const int open_interval_ = 10;
     std::FILE *fd_{nullptr};
-    filename_t _filename;
+    filename_t filename_;
 };
 } // namespace details
 } // namespace spdlog

third_party/spdlog/include/spdlog/details/fmt_helper.h

@@ -4,8 +4,8 @@
 
 #include <chrono>
 #include <type_traits>
-#include "spdlog/fmt/fmt.h"
-#include "spdlog/common.h"
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/common.h>
 
 // Some fmt helpers to efficiently format and pad ints and strings
 namespace spdlog {

third_party/spdlog/include/spdlog/details/log_msg-inl.h

@@ -4,21 +4,19 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/log_msg.h"
+#include <spdlog/details/log_msg.h>
 #endif
 
-#include "spdlog/details/os.h"
+#include <spdlog/details/os.h>
 
 namespace spdlog {
 namespace details {
 
-SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, string_view_t logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
-    : logger_name(logger_name)
+SPDLOG_INLINE log_msg::log_msg(
+    spdlog::source_loc loc, string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : logger_name(a_logger_name)
     , level(lvl)
-#ifndef SPDLOG_NO_DATETIME
     , time(os::now())
-#endif
-
 #ifndef SPDLOG_NO_THREAD_ID
     , thread_id(os::thread_id())
 #endif
@@ -26,8 +24,8 @@ SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, string_view_t logger_name
     , payload(msg)
 {}
 
-SPDLOG_INLINE log_msg::log_msg(string_view_t logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
-    : log_msg(source_loc{}, logger_name, lvl, msg)
+SPDLOG_INLINE log_msg::log_msg(string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : log_msg(source_loc{}, a_logger_name, lvl, msg)
 {}
 
 } // namespace details

third_party/spdlog/include/spdlog/details/log_msg.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 #include <string>
 
 namespace spdlog {

third_party/spdlog/include/spdlog/details/log_msg_buffer-inl.h

@@ -4,7 +4,7 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/log_msg_buffer.h"
+#include <spdlog/details/log_msg_buffer.h>
 #endif
 
 namespace spdlog {
@@ -26,9 +26,7 @@ SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg_buffer &other)
     update_string_views();
 }
 
-SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other)
-    : log_msg{std::move(other)}
-    , buffer{std::move(other.buffer)}
+SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT : log_msg{other}, buffer{std::move(other.buffer)}
 {
     update_string_views();
 }
@@ -42,9 +40,9 @@ SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &ot
     return *this;
 }
 
-SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other)
+SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT
 {
-    log_msg::operator=(std::move(other));
+    log_msg::operator=(other);
     buffer = std::move(other.buffer);
     update_string_views();
     return *this;

third_party/spdlog/include/spdlog/details/log_msg_buffer.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#include "spdlog/details/log_msg.h"
+#include <spdlog/details/log_msg.h>
 
 namespace spdlog {
 namespace details {
@@ -20,9 +20,9 @@ public:
     log_msg_buffer() = default;
     explicit log_msg_buffer(const log_msg &orig_msg);
     log_msg_buffer(const log_msg_buffer &other);
-    log_msg_buffer(log_msg_buffer &&other);
+    log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
     log_msg_buffer &operator=(const log_msg_buffer &other);
-    log_msg_buffer &operator=(log_msg_buffer &&other);
+    log_msg_buffer &operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
 };
 
 } // namespace details

third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h

@@ -10,7 +10,7 @@
 // dequeue_for(..) - will block until the queue is not empty or timeout have
 // passed.
 
-#include "spdlog/details/circular_q.h"
+#include <spdlog/details/circular_q.h>
 
 #include <condition_variable>
 #include <mutex>

third_party/spdlog/include/spdlog/details/os-inl.h

@@ -4,10 +4,10 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/os.h"
+#include <spdlog/details/os.h>
 #endif
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 
 #include <algorithm>
 #include <chrono>
@@ -42,6 +42,8 @@
 #include <limits>
 #endif
 
+#include <direct.h> // for _mkdir/_wmkdir
+
 #else // unix
 
 #include <fcntl.h>
@@ -91,17 +93,17 @@ SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
 
 #ifdef _WIN32
     std::tm tm;
-    localtime_s(&tm, &time_tt);
+    ::localtime_s(&tm, &time_tt);
 #else
     std::tm tm;
-    localtime_r(&time_tt, &tm);
+    ::localtime_r(&time_tt, &tm);
 #endif
     return tm;
 }
 
 SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT
 {
-    std::time_t now_t = time(nullptr);
+    std::time_t now_t = ::time(nullptr);
     return localtime(now_t);
 }
 
@@ -110,52 +112,52 @@ SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
 
 #ifdef _WIN32
     std::tm tm;
-    gmtime_s(&tm, &time_tt);
+    ::gmtime_s(&tm, &time_tt);
 #else
     std::tm tm;
-    gmtime_r(&time_tt, &tm);
+    ::gmtime_r(&time_tt, &tm);
 #endif
     return tm;
 }
 
 SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT
 {
-    std::time_t now_t = time(nullptr);
+    std::time_t now_t = ::time(nullptr);
     return gmtime(now_t);
 }
 
+#ifdef SPDLOG_PREVENT_CHILD_FD
 SPDLOG_INLINE void prevent_child_fd(FILE *f)
 {
-
 #ifdef _WIN32
-#if !defined(__cplusplus_winrt)
-    auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(_fileno(f)));
+    auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(::_fileno(f)));
     if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
         SPDLOG_THROW(spdlog_ex("SetHandleInformation failed", errno));
-#endif
 #else
-    auto fd = fileno(f);
-    if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
+    auto fd = ::fileno(f);
+    if (::fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
     {
         SPDLOG_THROW(spdlog_ex("fcntl with FD_CLOEXEC failed", errno));
     }
 #endif
 }
+#endif // SPDLOG_PREVENT_CHILD_FD
 
 // fopen_s on non windows for writing
 SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode)
 {
 #ifdef _WIN32
 #ifdef SPDLOG_WCHAR_FILENAMES
-    *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
+    *fp = ::_wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
 #else
-    *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
+    *fp = ::_fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
 #endif
 #else // unix
-    *fp = fopen((filename.c_str()), mode.c_str());
+    *fp = ::fopen((filename.c_str()), mode.c_str());
 #endif
 
 #ifdef SPDLOG_PREVENT_CHILD_FD
+    //  prevent child processes from inheriting log file descriptors
     if (*fp != nullptr)
     {
         prevent_child_fd(*fp);
@@ -167,7 +169,7 @@ SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename
 SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT
 {
 #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
-    return _wremove(filename.c_str());
+    return ::_wremove(filename.c_str());
 #else
     return std::remove(filename.c_str());
 #endif
@@ -175,28 +177,28 @@ SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT
 
 SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT
 {
-    return file_exists(filename) ? remove(filename) : 0;
+    return path_exists(filename) ? remove(filename) : 0;
 }
 
 SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT
 {
 #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
-    return _wrename(filename1.c_str(), filename2.c_str());
+    return ::_wrename(filename1.c_str(), filename2.c_str());
 #else
     return std::rename(filename1.c_str(), filename2.c_str());
 #endif
 }
 
-// Return true if file exists
-SPDLOG_INLINE bool file_exists(const filename_t &filename) SPDLOG_NOEXCEPT
+// Return true if path exists (file or directory)
+SPDLOG_INLINE bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT
 {
 #ifdef _WIN32
 #ifdef SPDLOG_WCHAR_FILENAMES
-    auto attribs = GetFileAttributesW(filename.c_str());
+    auto attribs = ::GetFileAttributesW(filename.c_str());
 #else
-    auto attribs = GetFileAttributesA(filename.c_str());
+    auto attribs = ::GetFileAttributesA(filename.c_str());
 #endif
-    return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY));
+    return attribs != INVALID_FILE_ATTRIBUTES;
 #else // common linux/unix all have the stat system call
     struct stat buffer;
     return (::stat(filename.c_str(), &buffer) == 0);
@@ -211,16 +213,16 @@ SPDLOG_INLINE size_t filesize(FILE *f)
         SPDLOG_THROW(spdlog_ex("Failed getting file size. fd is null"));
     }
 #if defined(_WIN32) && !defined(__CYGWIN__)
-    int fd = _fileno(f);
+    int fd = ::_fileno(f);
 #if _WIN64 // 64 bits
-    __int64 ret = _filelengthi64(fd);
+    __int64 ret = ::_filelengthi64(fd);
     if (ret >= 0)
     {
         return static_cast<size_t>(ret);
     }
 
 #else // windows 32 bits
-    long ret = _filelength(fd);
+    long ret = ::_filelength(fd);
     if (ret >= 0)
     {
         return static_cast<size_t>(ret);
@@ -228,7 +230,12 @@ SPDLOG_INLINE size_t filesize(FILE *f)
 #endif
 
 #else // unix
+// OpenBSD doesn't compile with :: before the fileno(..)
+#if defined(__OpenBSD__)
     int fd = fileno(f);
+#else
+    int fd = ::fileno(f);
+#endif
 // 64 bits(but not in osx or cygwin, where fstat64 is deprecated)
 #if (defined(__linux__) || defined(__sun) || defined(_AIX)) && (defined(__LP64__) || defined(_LP64))
     struct stat64 st;
@@ -236,9 +243,8 @@ SPDLOG_INLINE size_t filesize(FILE *f)
     {
         return static_cast<size_t>(st.st_size);
     }
-#else // unix 32 bits or cygwin
+#else // other unix or linux 32 bits or cygwin
     struct stat st;
-
     if (::fstat(fd, &st) == 0)
     {
         return static_cast<size_t>(st.st_size);
@@ -255,10 +261,10 @@ SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm)
 #ifdef _WIN32
 #if _WIN32_WINNT < _WIN32_WINNT_WS08
     TIME_ZONE_INFORMATION tzinfo;
-    auto rv = GetTimeZoneInformation(&tzinfo);
+    auto rv = ::GetTimeZoneInformation(&tzinfo);
 #else
     DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
-    auto rv = GetDynamicTimeZoneInformation(&tzinfo);
+    auto rv = ::GetDynamicTimeZoneInformation(&tzinfo);
 #endif
     if (rv == TIME_ZONE_ID_INVALID)
         SPDLOG_THROW(spdlog::spdlog_ex("Failed getting timezone info. ", errno));
@@ -275,7 +281,7 @@ SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm)
     return offset;
 #else
 
-#if defined(sun) || defined(__sun) || defined(_AIX)
+#if defined(sun) || defined(__sun) || defined(_AIX) || (!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE))
     // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
     struct helper
     {
@@ -324,15 +330,15 @@ SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT
 #if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
 #define SYS_gettid __NR_gettid
 #endif
-    return static_cast<size_t>(syscall(SYS_gettid));
+    return static_cast<size_t>(::syscall(SYS_gettid));
 #elif defined(_AIX) || defined(__DragonFly__) || defined(__FreeBSD__)
-    return static_cast<size_t>(pthread_getthreadid_np());
+    return static_cast<size_t>(::pthread_getthreadid_np());
 #elif defined(__NetBSD__)
-    return static_cast<size_t>(_lwp_self());
+    return static_cast<size_t>(::_lwp_self());
 #elif defined(__OpenBSD__)
-    return static_cast<size_t>(getthrid());
+    return static_cast<size_t>(::getthrid());
 #elif defined(__sun)
-    return static_cast<size_t>(thr_self());
+    return static_cast<size_t>(::thr_self());
 #elif __APPLE__
     uint64_t tid;
     pthread_threadid_np(nullptr, &tid);
@@ -417,16 +423,16 @@ SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT
 {
 
 #ifdef _WIN32
-    return _isatty(_fileno(file)) != 0;
+    return ::_isatty(_fileno(file)) != 0;
 #else
-    return isatty(fileno(file)) != 0;
+    return ::isatty(fileno(file)) != 0;
 #endif
 }
 
 #if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
 SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
 {
-    if (wstr.size() > static_cast<size_t>(std::numeric_limits<int>::max()))
+    if (wstr.size() > static_cast<size_t>((std::numeric_limits<int>::max)()))
     {
         SPDLOG_THROW(spdlog::spdlog_ex("UTF-16 string is too big to be converted to UTF-8"));
     }
@@ -460,6 +466,76 @@ SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
 }
 #endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
 
+// return true on success
+static SPDLOG_INLINE bool mkdir_(const filename_t &path)
+{
+#ifdef _WIN32
+#ifdef SPDLOG_WCHAR_FILENAMES
+    return ::_wmkdir(path.c_str()) == 0;
+#else
+    return ::_mkdir(path.c_str()) == 0;
+#endif
+#else
+    return ::mkdir(path.c_str(), mode_t(0755)) == 0;
+#endif
+}
+
+// create the given directory - and all directories leading to it
+// return true on success or if the directory already exists
+SPDLOG_INLINE bool create_dir(filename_t path)
+{
+    if (path_exists(path))
+    {
+        return true;
+    }
+
+    if (path.empty())
+    {
+        return false;
+    }
+
+#ifdef _WIN32
+    // support forward slash in windows
+    std::replace(path.begin(), path.end(), '/', folder_sep);
+#endif
+
+    size_t search_offset = 0;
+    do
+    {
+        auto token_pos = path.find(folder_sep, search_offset);
+        // treat the entire path as a folder if no folder separator not found
+        if (token_pos == filename_t::npos)
+        {
+            token_pos = path.size();
+        }
+
+        auto subdir = path.substr(0, token_pos);
+
+        if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir))
+        {
+            return false; // return error if failed creating dir
+        }
+        search_offset = token_pos + 1;
+    } while (search_offset < path.size());
+
+    return true;
+}
+
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+SPDLOG_INLINE filename_t dir_name(filename_t path)
+{
+#ifdef _WIN32
+    // support forward slash in windows
+    std::replace(path.begin(), path.end(), '/', folder_sep);
+#endif
+    auto pos = path.find_last_of(folder_sep);
+    return pos != filename_t::npos ? path.substr(0, pos) : filename_t{};
+}
+
 } // namespace os
 } // namespace details
 } // namespace spdlog

third_party/spdlog/include/spdlog/details/os.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 #include <ctime> // std::time_t
 
 namespace spdlog {
@@ -33,12 +33,14 @@ SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
 
 // folder separator
 #ifdef _WIN32
-const char folder_sep = '\\';
+static const char folder_sep = '\\';
 #else
 SPDLOG_CONSTEXPR static const char folder_sep = '/';
 #endif
 
+#ifdef SPDLOG_PREVENT_CHILD_FD
 void prevent_child_fd(FILE *f);
+#endif
 
 // fopen_s on non windows for writing
 bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode);
@@ -53,7 +55,7 @@ int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
 int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT;
 
 // Return if file exists.
-bool file_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
+bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
 
 // Return file size according to open FILE* object
 size_t filesize(FILE *f);
@@ -81,7 +83,7 @@ int pid() SPDLOG_NOEXCEPT;
 // Source: https://github.com/agauniyal/rang/
 bool is_color_terminal() SPDLOG_NOEXCEPT;
 
-// Detrmine if the terminal attached
+// Determine if the terminal attached
 // Source: https://github.com/agauniyal/rang/
 bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
 
@@ -89,6 +91,17 @@ bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
 void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target);
 #endif
 
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+filename_t dir_name(filename_t path);
+
+// Create a dir from the given path.
+// Return true if succeeded or if this dir already exists.
+bool create_dir(filename_t path);
+
 } // namespace os
 } // namespace details
 } // namespace spdlog

third_party/spdlog/include/spdlog/details/pattern_formatter-inl.h

@@ -4,14 +4,14 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/pattern_formatter.h"
+#include <spdlog/details/pattern_formatter.h>
 #endif
 
-#include "spdlog/details/fmt_helper.h"
-#include "spdlog/details/log_msg.h"
-#include "spdlog/details/os.h"
-#include "spdlog/fmt/fmt.h"
-#include "spdlog/formatter.h"
+#include <spdlog/details/fmt_helper.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/os.h>
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/formatter.h>
 
 #include <array>
 #include <chrono>
@@ -39,47 +39,48 @@ public:
         : padinfo_(padinfo)
         , dest_(dest)
     {
-
-        if (padinfo_.width_ <= wrapped_size)
+        remaining_pad_ = static_cast<long>(padinfo.width_) - static_cast<long>(wrapped_size);
+        if (remaining_pad_ <= 0)
         {
-            total_pad_ = 0;
             return;
         }
 
-        total_pad_ = padinfo.width_ - wrapped_size;
         if (padinfo_.side_ == padding_info::left)
         {
-            pad_it(total_pad_);
-            total_pad_ = 0;
+            pad_it(remaining_pad_);
+            remaining_pad_ = 0;
         }
         else if (padinfo_.side_ == padding_info::center)
         {
-            auto half_pad = total_pad_ / 2;
-            auto reminder = total_pad_ & 1;
+            auto half_pad = remaining_pad_ / 2;
+            auto reminder = remaining_pad_ & 1;
             pad_it(half_pad);
-            total_pad_ = half_pad + reminder; // for the right side
+            remaining_pad_ = half_pad + reminder; // for the right side
         }
     }
 
     ~scoped_padder()
     {
-        if (total_pad_)
+        if (remaining_pad_ >= 0)
         {
-            pad_it(total_pad_);
+            pad_it(remaining_pad_);
+        }
+        else if (padinfo_.truncate_)
+        {
+            long new_size = static_cast<long>(dest_.size()) + remaining_pad_;
+            dest_.resize(static_cast<size_t>(new_size));
         }
     }
 
 private:
-    void pad_it(size_t count)
+    void pad_it(long count)
     {
-        // count = std::min(count, spaces_.size());
-        assert(count <= spaces_.size());
-        fmt_helper::append_string_view(string_view_t(spaces_.data(), count), dest_);
+        fmt_helper::append_string_view(string_view_t(spaces_.data(), static_cast<size_t>(count)), dest_);
     }
 
     const padding_info &padinfo_;
     memory_buf_t &dest_;
-    size_t total_pad_;
+    long remaining_pad_;
     string_view_t spaces_{"                                                                ", 64};
 };
 
@@ -593,14 +594,7 @@ public:
         const size_t field_size = 6;
         ScopedPadder p(field_size, padinfo_, dest);
 
-#ifdef _WIN32
-        int total_minutes = get_cached_offset(msg, tm_time);
-#else
-        // No need to chache under gcc,
-        // it is very fast (already stored in tm.tm_gmtoff)
-        (void)(msg);
-        int total_minutes = os::utc_minutes_offset(tm_time);
-#endif
+        auto total_minutes = get_cached_offset(msg, tm_time);
         bool is_negative = total_minutes < 0;
         if (is_negative)
         {
@@ -619,7 +613,6 @@ public:
 
 private:
     log_clock::time_point last_update_{std::chrono::seconds(0)};
-#ifdef _WIN32
     int offset_minutes_{0};
 
     int get_cached_offset(const log_msg &msg, const std::tm &tm_time)
@@ -632,7 +625,6 @@ private:
         }
         return offset_minutes_;
     }
-#endif
 };
 
 // Thread id
@@ -881,11 +873,13 @@ public:
         auto delta = (std::max)(msg.time - last_message_time_, log_clock::duration::zero());
         auto delta_units = std::chrono::duration_cast<DurationUnits>(delta);
         last_message_time_ = msg.time;
-        ScopedPadder p(6, padinfo_, dest);
-        fmt_helper::pad6(static_cast<size_t>(delta_units.count()), dest);
+        auto delta_count = static_cast<size_t>(delta_units.count());
+        auto n_digits = static_cast<size_t>(fmt_helper::count_digits(delta_count));
+        ScopedPadder p(n_digits, padinfo_, dest);
+        fmt_helper::append_int(delta_count, dest);
     }
 
-protected:
+private:
     log_clock::time_point last_message_time_;
 };
 
@@ -904,8 +898,6 @@ public:
         using std::chrono::milliseconds;
         using std::chrono::seconds;
 
-#ifndef SPDLOG_NO_DATETIME
-
         // cache the date/time part for the next second.
         auto duration = msg.time.time_since_epoch();
         auto secs = duration_cast<seconds>(duration);
@@ -941,10 +933,6 @@ public:
         dest.push_back(']');
         dest.push_back(' ');
 
-#else // no datetime needed
-        (void)tm_time;
-#endif
-
 #ifndef SPDLOG_NO_NAME
         if (msg.logger_name.size() > 0)
         {
@@ -1014,14 +1002,13 @@ SPDLOG_INLINE std::unique_ptr<formatter> pattern_formatter::clone() const
 
 SPDLOG_INLINE void pattern_formatter::format(const details::log_msg &msg, memory_buf_t &dest)
 {
-#ifndef SPDLOG_NO_DATETIME
     auto secs = std::chrono::duration_cast<std::chrono::seconds>(msg.time.time_since_epoch());
     if (secs != last_log_secs_)
     {
         cached_tm_ = get_time_(msg);
         last_log_secs_ = secs;
     }
-#endif
+
     for (auto &f : formatters_)
     {
         f->format(msg, cached_tm_, dest);
@@ -1225,7 +1212,7 @@ SPDLOG_INLINE void pattern_formatter::handle_flag_(char flag, details::padding_i
     }
 }
 
-// Extract given pad spec (e.g. %8X)
+// Extract given pad spec (e.g. %8X, %=8X, %-8!X, %8!X, %=8!X, %-8!X, %+8!X)
 // Advance the given it pass the end of the padding spec found (if any)
 // Return padding.
 SPDLOG_INLINE details::padding_info pattern_formatter::handle_padspec_(std::string::const_iterator &it, std::string::const_iterator end)
@@ -1256,7 +1243,7 @@ SPDLOG_INLINE details::padding_info pattern_formatter::handle_padspec_(std::stri
 
     if (it == end || !std::isdigit(static_cast<unsigned char>(*it)))
     {
-        return padding_info{0, side};
+        return padding_info{}; // no padding if no digit found here
     }
 
     auto width = static_cast<size_t>(*it) - '0';
@@ -1265,7 +1252,20 @@ SPDLOG_INLINE details::padding_info pattern_formatter::handle_padspec_(std::stri
         auto digit = static_cast<size_t>(*it) - '0';
         width = width * 10 + digit;
     }
-    return details::padding_info{std::min<size_t>(width, max_width), side};
+
+    // search for the optional truncate marker '!'
+    bool truncate;
+    if (it != end && *it == '!')
+    {
+        truncate = true;
+        ++it;
+    }
+    else
+    {
+        truncate = false;
+    }
+
+    return details::padding_info{std::min<size_t>(width, max_width), side, truncate};
 }
 
 SPDLOG_INLINE void pattern_formatter::compile_pattern_(const std::string &pattern)

third_party/spdlog/include/spdlog/details/pattern_formatter.h

@@ -3,10 +3,10 @@
 
 #pragma once
 
-#include "spdlog/common.h"
-#include "spdlog/details/log_msg.h"
-#include "spdlog/details/os.h"
-#include "spdlog/formatter.h"
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/os.h>
+#include <spdlog/formatter.h>
 
 #include <chrono>
 #include <ctime>
@@ -29,17 +29,21 @@ struct padding_info
     };
 
     padding_info() = default;
-    padding_info(size_t width, padding_info::pad_side side)
+    padding_info(size_t width, padding_info::pad_side side, bool truncate)
         : width_(width)
         , side_(side)
+        , truncate_(truncate)
+        , enabled_(true)
     {}
 
     bool enabled() const
     {
-        return width_ != 0;
+        return enabled_;
     }
     const size_t width_ = 0;
     const pad_side side_ = left;
+    bool truncate_ = false;
+    bool enabled_ = false;
 };
 
 class flag_formatter

third_party/spdlog/include/spdlog/details/periodic_worker-inl.h

@@ -4,7 +4,7 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/periodic_worker.h"
+#include <spdlog/details/periodic_worker.h>
 #endif
 
 namespace spdlog {

third_party/spdlog/include/spdlog/details/registry-inl.h

@@ -4,20 +4,20 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/registry.h"
+#include <spdlog/details/registry.h>
 #endif
 
-#include "spdlog/common.h"
-#include "spdlog/details/periodic_worker.h"
-#include "spdlog/logger.h"
-#include "spdlog/details/pattern_formatter.h"
+#include <spdlog/common.h>
+#include <spdlog/details/periodic_worker.h>
+#include <spdlog/logger.h>
+#include <spdlog/details/pattern_formatter.h>
 
 #ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
 // support for the default stdout color logger
 #ifdef _WIN32
-#include "spdlog/sinks/wincolor_sink.h"
+#include <spdlog/sinks/wincolor_sink.h>
 #else
-#include "spdlog/sinks/ansicolor_sink.h"
+#include <spdlog/sinks/ansicolor_sink.h>
 #endif
 #endif // SPDLOG_DISABLE_DEFAULT_LOGGER
 
@@ -254,10 +254,10 @@ SPDLOG_INLINE std::recursive_mutex &registry::tp_mutex()
     return tp_mutex_;
 }
 
-SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_regsistration)
+SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_registration)
 {
     std::lock_guard<std::mutex> lock(logger_map_mutex_);
-    automatic_registration_ = automatic_regsistration;
+    automatic_registration_ = automatic_registration;
 }
 
 SPDLOG_INLINE registry &registry::instance()

third_party/spdlog/include/spdlog/details/registry.h

@@ -8,7 +8,7 @@
 // If user requests a non existing logger, nullptr will be returned
 // This class is thread safe
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 
 #include <chrono>
 #include <functional>
@@ -77,7 +77,7 @@ public:
 
     std::recursive_mutex &tp_mutex();
 
-    void set_automatic_registration(bool automatic_regsistration);
+    void set_automatic_registration(bool automatic_registration);
 
     static registry &instance();
 

third_party/spdlog/include/spdlog/details/thread_pool-inl.h

@@ -4,10 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/details/thread_pool.h"
+#include <spdlog/details/thread_pool.h>
 #endif
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
+#include <cassert>
 
 namespace spdlog {
 namespace details {
@@ -81,7 +82,7 @@ void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg, async_overf
 
 void SPDLOG_INLINE thread_pool::worker_loop_()
 {
-    while (process_next_msg_()) {};
+    while (process_next_msg_()) {}
 }
 
 // process next message in the queue
@@ -98,24 +99,20 @@ bool SPDLOG_INLINE thread_pool::process_next_msg_()
 
     switch (incoming_async_msg.msg_type)
     {
-    case async_msg_type::log:
-    {
+    case async_msg_type::log: {
         incoming_async_msg.worker_ptr->backend_sink_it_(incoming_async_msg);
         return true;
     }
-    case async_msg_type::flush:
-    {
+    case async_msg_type::flush: {
         incoming_async_msg.worker_ptr->backend_flush_();
         return true;
     }
 
-    case async_msg_type::terminate:
-    {
+    case async_msg_type::terminate: {
         return false;
     }
 
-    default:
-    {
+    default: {
         assert(false && "Unexpected async_msg_type");
     }
     }

third_party/spdlog/include/spdlog/details/thread_pool.h

@@ -3,9 +3,9 @@
 
 #pragma once
 
-#include "spdlog/details/log_msg_buffer.h"
-#include "spdlog/details/mpmc_blocking_q.h"
-#include "spdlog/details/os.h"
+#include <spdlog/details/log_msg_buffer.h>
+#include <spdlog/details/mpmc_blocking_q.h>
+#include <spdlog/details/os.h>
 
 #include <chrono>
 #include <memory>
@@ -27,7 +27,7 @@ enum class async_msg_type
     terminate
 };
 
-#include "spdlog/details/log_msg_buffer.h"
+#include <spdlog/details/log_msg_buffer.h>
 // Async msg to move to/from the queue
 // Movable only. should never be copied
 struct async_msg : log_msg_buffer

third_party/spdlog/include/spdlog/fmt/bundled/chrono.h

@@ -16,16 +16,291 @@
 #include <locale>
 #include <sstream>
 
-// enable safe chrono durations, unless explicitly disabled
+FMT_BEGIN_NAMESPACE
+
+// Enable safe chrono durations, unless explicitly disabled.
 #ifndef FMT_SAFE_DURATION_CAST
 #  define FMT_SAFE_DURATION_CAST 1
 #endif
-
 #if FMT_SAFE_DURATION_CAST
-#  include "safe-duration-cast.h"
-#endif
 
-FMT_BEGIN_NAMESPACE
+// For conversion between std::chrono::durations without undefined
+// behaviour or erroneous results.
+// This is a stripped down version of duration_cast, for inclusion in fmt.
+// See https://github.com/pauldreik/safe_duration_cast
+//
+// Copyright Paul Dreik 2019
+namespace safe_duration_cast {
+
+template <typename To, typename From,
+          FMT_ENABLE_IF(!std::is_same<From, To>::value &&
+                        std::numeric_limits<From>::is_signed ==
+                            std::numeric_limits<To>::is_signed)>
+FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
+  ec = 0;
+  using F = std::numeric_limits<From>;
+  using T = std::numeric_limits<To>;
+  static_assert(F::is_integer, "From must be integral");
+  static_assert(T::is_integer, "To must be integral");
+
+  // A and B are both signed, or both unsigned.
+  if (F::digits <= T::digits) {
+    // From fits in To without any problem.
+  } else {
+    // From does not always fit in To, resort to a dynamic check.
+    if (from < T::min() || from > T::max()) {
+      // outside range.
+      ec = 1;
+      return {};
+    }
+  }
+  return static_cast<To>(from);
+}
+
+/**
+ * converts From to To, without loss. If the dynamic value of from
+ * can't be converted to To without loss, ec is set.
+ */
+template <typename To, typename From,
+          FMT_ENABLE_IF(!std::is_same<From, To>::value &&
+                        std::numeric_limits<From>::is_signed !=
+                            std::numeric_limits<To>::is_signed)>
+FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
+  ec = 0;
+  using F = std::numeric_limits<From>;
+  using T = std::numeric_limits<To>;
+  static_assert(F::is_integer, "From must be integral");
+  static_assert(T::is_integer, "To must be integral");
+
+  if (F::is_signed && !T::is_signed) {
+    // From may be negative, not allowed!
+    if (fmt::internal::is_negative(from)) {
+      ec = 1;
+      return {};
+    }
+
+    // From is positive. Can it always fit in To?
+    if (F::digits <= T::digits) {
+      // yes, From always fits in To.
+    } else {
+      // from may not fit in To, we have to do a dynamic check
+      if (from > static_cast<From>(T::max())) {
+        ec = 1;
+        return {};
+      }
+    }
+  }
+
+  if (!F::is_signed && T::is_signed) {
+    // can from be held in To?
+    if (F::digits < T::digits) {
+      // yes, From always fits in To.
+    } else {
+      // from may not fit in To, we have to do a dynamic check
+      if (from > static_cast<From>(T::max())) {
+        // outside range.
+        ec = 1;
+        return {};
+      }
+    }
+  }
+
+  // reaching here means all is ok for lossless conversion.
+  return static_cast<To>(from);
+
+}  // function
+
+template <typename To, typename From,
+          FMT_ENABLE_IF(std::is_same<From, To>::value)>
+FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
+  ec = 0;
+  return from;
+}  // function
+
+// clang-format off
+/**
+ * converts From to To if possible, otherwise ec is set.
+ *
+ * input                            |    output
+ * ---------------------------------|---------------
+ * NaN                              | NaN
+ * Inf                              | Inf
+ * normal, fits in output           | converted (possibly lossy)
+ * normal, does not fit in output   | ec is set
+ * subnormal                        | best effort
+ * -Inf                             | -Inf
+ */
+// clang-format on
+template <typename To, typename From,
+          FMT_ENABLE_IF(!std::is_same<From, To>::value)>
+FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) {
+  ec = 0;
+  using T = std::numeric_limits<To>;
+  static_assert(std::is_floating_point<From>::value, "From must be floating");
+  static_assert(std::is_floating_point<To>::value, "To must be floating");
+
+  // catch the only happy case
+  if (std::isfinite(from)) {
+    if (from >= T::lowest() && from <= T::max()) {
+      return static_cast<To>(from);
+    }
+    // not within range.
+    ec = 1;
+    return {};
+  }
+
+  // nan and inf will be preserved
+  return static_cast<To>(from);
+}  // function
+
+template <typename To, typename From,
+          FMT_ENABLE_IF(std::is_same<From, To>::value)>
+FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) {
+  ec = 0;
+  static_assert(std::is_floating_point<From>::value, "From must be floating");
+  return from;
+}
+
+/**
+ * safe duration cast between integral durations
+ */
+template <typename To, typename FromRep, typename FromPeriod,
+          FMT_ENABLE_IF(std::is_integral<FromRep>::value),
+          FMT_ENABLE_IF(std::is_integral<typename To::rep>::value)>
+To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
+                      int& ec) {
+  using From = std::chrono::duration<FromRep, FromPeriod>;
+  ec = 0;
+  // the basic idea is that we need to convert from count() in the from type
+  // to count() in the To type, by multiplying it with this:
+  struct Factor
+      : std::ratio_divide<typename From::period, typename To::period> {};
+
+  static_assert(Factor::num > 0, "num must be positive");
+  static_assert(Factor::den > 0, "den must be positive");
+
+  // the conversion is like this: multiply from.count() with Factor::num
+  // /Factor::den and convert it to To::rep, all this without
+  // overflow/underflow. let's start by finding a suitable type that can hold
+  // both To, From and Factor::num
+  using IntermediateRep =
+      typename std::common_type<typename From::rep, typename To::rep,
+                                decltype(Factor::num)>::type;
+
+  // safe conversion to IntermediateRep
+  IntermediateRep count =
+      lossless_integral_conversion<IntermediateRep>(from.count(), ec);
+  if (ec) {
+    return {};
+  }
+  // multiply with Factor::num without overflow or underflow
+  if (Factor::num != 1) {
+    const auto max1 = internal::max_value<IntermediateRep>() / Factor::num;
+    if (count > max1) {
+      ec = 1;
+      return {};
+    }
+    const auto min1 = std::numeric_limits<IntermediateRep>::min() / Factor::num;
+    if (count < min1) {
+      ec = 1;
+      return {};
+    }
+    count *= Factor::num;
+  }
+
+  // this can't go wrong, right? den>0 is checked earlier.
+  if (Factor::den != 1) {
+    count /= Factor::den;
+  }
+  // convert to the to type, safely
+  using ToRep = typename To::rep;
+  const ToRep tocount = lossless_integral_conversion<ToRep>(count, ec);
+  if (ec) {
+    return {};
+  }
+  return To{tocount};
+}
+
+/**
+ * safe duration_cast between floating point durations
+ */
+template <typename To, typename FromRep, typename FromPeriod,
+          FMT_ENABLE_IF(std::is_floating_point<FromRep>::value),
+          FMT_ENABLE_IF(std::is_floating_point<typename To::rep>::value)>
+To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
+                      int& ec) {
+  using From = std::chrono::duration<FromRep, FromPeriod>;
+  ec = 0;
+  if (std::isnan(from.count())) {
+    // nan in, gives nan out. easy.
+    return To{std::numeric_limits<typename To::rep>::quiet_NaN()};
+  }
+  // maybe we should also check if from is denormal, and decide what to do about
+  // it.
+
+  // +-inf should be preserved.
+  if (std::isinf(from.count())) {
+    return To{from.count()};
+  }
+
+  // the basic idea is that we need to convert from count() in the from type
+  // to count() in the To type, by multiplying it with this:
+  struct Factor
+      : std::ratio_divide<typename From::period, typename To::period> {};
+
+  static_assert(Factor::num > 0, "num must be positive");
+  static_assert(Factor::den > 0, "den must be positive");
+
+  // the conversion is like this: multiply from.count() with Factor::num
+  // /Factor::den and convert it to To::rep, all this without
+  // overflow/underflow. let's start by finding a suitable type that can hold
+  // both To, From and Factor::num
+  using IntermediateRep =
+      typename std::common_type<typename From::rep, typename To::rep,
+                                decltype(Factor::num)>::type;
+
+  // force conversion of From::rep -> IntermediateRep to be safe,
+  // even if it will never happen be narrowing in this context.
+  IntermediateRep count =
+      safe_float_conversion<IntermediateRep>(from.count(), ec);
+  if (ec) {
+    return {};
+  }
+
+  // multiply with Factor::num without overflow or underflow
+  if (Factor::num != 1) {
+    constexpr auto max1 = internal::max_value<IntermediateRep>() /
+                          static_cast<IntermediateRep>(Factor::num);
+    if (count > max1) {
+      ec = 1;
+      return {};
+    }
+    constexpr auto min1 = std::numeric_limits<IntermediateRep>::lowest() /
+                          static_cast<IntermediateRep>(Factor::num);
+    if (count < min1) {
+      ec = 1;
+      return {};
+    }
+    count *= static_cast<IntermediateRep>(Factor::num);
+  }
+
+  // this can't go wrong, right? den>0 is checked earlier.
+  if (Factor::den != 1) {
+    using common_t = typename std::common_type<IntermediateRep, intmax_t>::type;
+    count /= static_cast<common_t>(Factor::den);
+  }
+
+  // convert to the to type, safely
+  using ToRep = typename To::rep;
+
+  const ToRep tocount = safe_float_conversion<ToRep>(count, ec);
+  if (ec) {
+    return {};
+  }
+  return To{tocount};
+}
+}  // namespace safe_duration_cast
+#endif
 
 // Prevents expansion of a preceding token as a function-style macro.
 // Usage: f FMT_NOMACRO()
@@ -403,7 +678,7 @@ inline bool isfinite(T value) {
   return std::isfinite(value);
 }
 
-// Convers value to int and checks that it's in the range [0, upper).
+// Converts value to int and checks that it's in the range [0, upper).
 template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
 inline int to_nonnegative_int(T value, int upper) {
   FMT_ASSERT(value >= 0 && value <= upper, "invalid value");
@@ -582,8 +857,8 @@ struct chrono_formatter {
   void write(Rep value, int width) {
     write_sign();
     if (isnan(value)) return write_nan();
-    uint32_or_64_t<int> n = to_unsigned(
-        to_nonnegative_int(value, (std::numeric_limits<int>::max)()));
+    uint32_or_64_or_128_t<int> n =
+        to_unsigned(to_nonnegative_int(value, max_value<int>()));
     int num_digits = internal::count_digits(n);
     if (width > num_digits) out = std::fill_n(out, width - num_digits, '0');
     out = format_decimal<char_type>(out, n, num_digits);
@@ -728,7 +1003,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
 
   struct spec_handler {
     formatter& f;
-    basic_parse_context<Char>& context;
+    basic_format_parse_context<Char>& context;
     basic_string_view<Char> format_str;
 
     template <typename Id> FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) {
@@ -738,8 +1013,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
 
     FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view<Char> arg_id) {
       context.check_arg_id(arg_id);
-      const auto str_val = internal::string_view_metadata(format_str, arg_id);
-      return arg_ref_type(str_val);
+      return arg_ref_type(arg_id);
     }
 
     FMT_CONSTEXPR arg_ref_type make_arg_ref(internal::auto_id) {
@@ -750,7 +1024,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
     void on_fill(Char fill) { f.specs.fill[0] = fill; }
     void on_align(align_t align) { f.specs.align = align; }
     void on_width(unsigned width) { f.specs.width = width; }
-    void on_precision(unsigned precision) { f.precision = precision; }
+    void on_precision(unsigned _precision) { f.precision = _precision; }
     void end_precision() {}
 
     template <typename Id> void on_dynamic_width(Id arg_id) {
@@ -762,13 +1036,13 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
     }
   };
 
-  using iterator = typename basic_parse_context<Char>::iterator;
+  using iterator = typename basic_format_parse_context<Char>::iterator;
   struct parse_range {
     iterator begin;
     iterator end;
   };
 
-  FMT_CONSTEXPR parse_range do_parse(basic_parse_context<Char>& ctx) {
+  FMT_CONSTEXPR parse_range do_parse(basic_format_parse_context<Char>& ctx) {
     auto begin = ctx.begin(), end = ctx.end();
     if (begin == end || *begin == '}') return {begin, begin};
     spec_handler handler{*this, ctx, format_str};
@@ -789,7 +1063,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
  public:
   formatter() : precision(-1) {}
 
-  FMT_CONSTEXPR auto parse(basic_parse_context<Char>& ctx)
+  FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
       -> decltype(ctx.begin()) {
     auto range = do_parse(ctx);
     format_str = basic_string_view<Char>(
@@ -806,10 +1080,10 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
     auto out = std::back_inserter(buf);
     using range = internal::output_range<decltype(ctx.out()), Char>;
     internal::basic_writer<range> w(range(ctx.out()));
-    internal::handle_dynamic_spec<internal::width_checker>(
-        specs.width, width_ref, ctx, format_str.begin());
+    internal::handle_dynamic_spec<internal::width_checker>(specs.width,
+                                                           width_ref, ctx);
     internal::handle_dynamic_spec<internal::precision_checker>(
-        precision, precision_ref, ctx, format_str.begin());
+        precision, precision_ref, ctx);
     if (begin == end || *begin == '}') {
       out = internal::format_chrono_duration_value(out, d.count(), precision);
       internal::format_chrono_duration_unit<Period>(out);

third_party/spdlog/include/spdlog/fmt/bundled/color.h

@@ -299,15 +299,15 @@ class text_style {
     return static_cast<uint8_t>(ems) != 0;
   }
   FMT_CONSTEXPR internal::color_type get_foreground() const FMT_NOEXCEPT {
-    assert(has_foreground() && "no foreground specified for this style");
+    FMT_ASSERT(has_foreground(), "no foreground specified for this style");
     return foreground_color;
   }
   FMT_CONSTEXPR internal::color_type get_background() const FMT_NOEXCEPT {
-    assert(has_background() && "no background specified for this style");
+    FMT_ASSERT(has_background(), "no background specified for this style");
     return background_color;
   }
   FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT {
-    assert(has_emphasis() && "no emphasis specified for this style");
+    FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
     return ems;
   }
 
@@ -470,58 +470,41 @@ inline void reset_color(basic_memory_buffer<Char>& buffer) FMT_NOEXCEPT {
 }
 
 template <typename Char>
-std::basic_string<Char> vformat(const text_style& ts,
-                                basic_string_view<Char> format_str,
-                                basic_format_args<buffer_context<Char> > args) {
-  basic_memory_buffer<Char> buffer;
+void vformat_to(basic_memory_buffer<Char>& buf, const text_style& ts,
+                basic_string_view<Char> format_str,
+                basic_format_args<buffer_context<Char>> args) {
   bool has_style = false;
   if (ts.has_emphasis()) {
     has_style = true;
-    ansi_color_escape<Char> escape = make_emphasis<Char>(ts.get_emphasis());
-    buffer.append(escape.begin(), escape.end());
+    auto emphasis = internal::make_emphasis<Char>(ts.get_emphasis());
+    buf.append(emphasis.begin(), emphasis.end());
   }
   if (ts.has_foreground()) {
     has_style = true;
-    ansi_color_escape<Char> escape =
-        make_foreground_color<Char>(ts.get_foreground());
-    buffer.append(escape.begin(), escape.end());
+    auto foreground =
+        internal::make_foreground_color<Char>(ts.get_foreground());
+    buf.append(foreground.begin(), foreground.end());
   }
   if (ts.has_background()) {
     has_style = true;
-    ansi_color_escape<Char> escape =
-        make_background_color<Char>(ts.get_background());
-    buffer.append(escape.begin(), escape.end());
+    auto background =
+        internal::make_background_color<Char>(ts.get_background());
+    buf.append(background.begin(), background.end());
   }
-  internal::vformat_to(buffer, format_str, args);
+  vformat_to(buf, format_str, args);
   if (has_style) {
-    reset_color<Char>(buffer);
+    internal::reset_color<Char>(buf);
   }
-  return fmt::to_string(buffer);
 }
 }  // namespace internal
 
-template <typename S, typename Char = char_t<S> >
+template <typename S, typename Char = char_t<S>>
 void vprint(std::FILE* f, const text_style& ts, const S& format,
-            basic_format_args<buffer_context<Char> > args) {
-  bool has_style = false;
-  if (ts.has_emphasis()) {
-    has_style = true;
-    internal::fputs<Char>(internal::make_emphasis<Char>(ts.get_emphasis()), f);
-  }
-  if (ts.has_foreground()) {
-    has_style = true;
-    internal::fputs<Char>(
-        internal::make_foreground_color<Char>(ts.get_foreground()), f);
-  }
-  if (ts.has_background()) {
-    has_style = true;
-    internal::fputs<Char>(
-        internal::make_background_color<Char>(ts.get_background()), f);
-  }
-  vprint(f, format, args);
-  if (has_style) {
-    internal::reset_color<Char>(f);
-  }
+            basic_format_args<buffer_context<Char>> args) {
+  basic_memory_buffer<Char> buf;
+  internal::vformat_to(buf, ts, to_string_view(format), args);
+  buf.push_back(Char(0));
+  internal::fputs(buf.data(), f);
 }
 
 /**
@@ -536,7 +519,7 @@ template <typename S, typename... Args,
 void print(std::FILE* f, const text_style& ts, const S& format_str,
            const Args&... args) {
   internal::check_format_string<Args...>(format_str);
-  using context = buffer_context<char_t<S> >;
+  using context = buffer_context<char_t<S>>;
   format_arg_store<context, Args...> as{args...};
   vprint(f, ts, format_str, basic_format_args<context>(as));
 }
@@ -554,11 +537,13 @@ void print(const text_style& ts, const S& format_str, const Args&... args) {
   return print(stdout, ts, format_str, args...);
 }
 
-template <typename S, typename Char = char_t<S> >
+template <typename S, typename Char = char_t<S>>
 inline std::basic_string<Char> vformat(
     const text_style& ts, const S& format_str,
-    basic_format_args<buffer_context<Char> > args) {
-  return internal::vformat(ts, to_string_view(format_str), args);
+    basic_format_args<buffer_context<Char>> args) {
+  basic_memory_buffer<Char> buf;
+  internal::vformat_to(buf, ts, to_string_view(format_str), args);
+  return fmt::to_string(buf);
 }
 
 /**
@@ -573,11 +558,11 @@ inline std::basic_string<Char> vformat(
                                       "The answer is {}", 42);
   \endrst
 */
-template <typename S, typename... Args, typename Char = char_t<S> >
+template <typename S, typename... Args, typename Char = char_t<S>>
 inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
                                       const Args&... args) {
-  return internal::vformat(ts, to_string_view(format_str),
-                           {internal::make_args_checked(format_str, args...)});
+  return vformat(ts, to_string_view(format_str),
+                 {internal::make_args_checked<Args...>(format_str, args...)});
 }
 
 FMT_END_NAMESPACE

third_party/spdlog/include/spdlog/fmt/bundled/compile.h

@@ -14,250 +14,44 @@
 FMT_BEGIN_NAMESPACE
 namespace internal {
 
+// Part of a compiled format string. It can be either literal text or a
+// replacement field.
 template <typename Char> struct format_part {
- public:
-  struct named_argument_id {
-    FMT_CONSTEXPR named_argument_id(internal::string_view_metadata id)
-        : id(id) {}
-    internal::string_view_metadata id;
+  enum class kind { arg_index, arg_name, text, replacement };
+
+  struct replacement {
+    arg_ref<Char> arg_id;
+    dynamic_format_specs<Char> specs;
   };
 
-  struct argument_id {
-    FMT_CONSTEXPR argument_id() : argument_id(0u) {}
-
-    FMT_CONSTEXPR argument_id(unsigned id)
-        : which(which_arg_id::index), val(id) {}
-
-    FMT_CONSTEXPR argument_id(internal::string_view_metadata id)
-        : which(which_arg_id::named_index), val(id) {}
-
-    enum class which_arg_id { index, named_index };
-
-    which_arg_id which;
-
-    union value {
-      FMT_CONSTEXPR value() : index(0u) {}
-      FMT_CONSTEXPR value(unsigned id) : index(id) {}
-      FMT_CONSTEXPR value(internal::string_view_metadata id)
-          : named_index(id) {}
-
-      unsigned index;
-      internal::string_view_metadata named_index;
-    } val;
-  };
-
-  struct specification {
-    FMT_CONSTEXPR specification() : arg_id(0u) {}
-    FMT_CONSTEXPR specification(unsigned id) : arg_id(id) {}
-
-    FMT_CONSTEXPR specification(internal::string_view_metadata id)
-        : arg_id(id) {}
-
-    argument_id arg_id;
-    internal::dynamic_format_specs<Char> parsed_specs;
-  };
-
-  FMT_CONSTEXPR format_part()
-      : which(kind::argument_id), end_of_argument_id(0u), val(0u) {}
-
-  FMT_CONSTEXPR format_part(internal::string_view_metadata text)
-      : which(kind::text), end_of_argument_id(0u), val(text) {}
-
-  FMT_CONSTEXPR format_part(unsigned id)
-      : which(kind::argument_id), end_of_argument_id(0u), val(id) {}
-
-  FMT_CONSTEXPR format_part(named_argument_id arg_id)
-      : which(kind::named_argument_id), end_of_argument_id(0u), val(arg_id) {}
-
-  FMT_CONSTEXPR format_part(specification spec)
-      : which(kind::specification), end_of_argument_id(0u), val(spec) {}
-
-  enum class kind { argument_id, named_argument_id, text, specification };
-
-  kind which;
-  std::size_t end_of_argument_id;
+  kind part_kind;
   union value {
-    FMT_CONSTEXPR value() : arg_id(0u) {}
-    FMT_CONSTEXPR value(unsigned id) : arg_id(id) {}
-    FMT_CONSTEXPR value(named_argument_id named_id)
-        : named_arg_id(named_id.id) {}
-    FMT_CONSTEXPR value(internal::string_view_metadata t) : text(t) {}
-    FMT_CONSTEXPR value(specification s) : spec(s) {}
-    unsigned arg_id;
-    internal::string_view_metadata named_arg_id;
-    internal::string_view_metadata text;
-    specification spec;
+    unsigned arg_index;
+    basic_string_view<Char> str;
+    replacement repl;
+
+    FMT_CONSTEXPR value(unsigned index = 0) : arg_index(index) {}
+    FMT_CONSTEXPR value(basic_string_view<Char> s) : str(s) {}
+    FMT_CONSTEXPR value(replacement r) : repl(r) {}
   } val;
-};
+  // Position past the end of the argument id.
+  const Char* arg_id_end = nullptr;
 
-template <typename Char, typename PartsContainer>
-class format_preparation_handler : public internal::error_handler {
- private:
-  using part = format_part<Char>;
+  FMT_CONSTEXPR format_part(kind k = kind::arg_index, value v = {})
+      : part_kind(k), val(v) {}
 
- public:
-  using iterator = typename basic_string_view<Char>::iterator;
-
-  FMT_CONSTEXPR format_preparation_handler(basic_string_view<Char> format,
-                                           PartsContainer& parts)
-      : parts_(parts), format_(format), parse_context_(format) {}
-
-  FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
-    if (begin == end) return;
-    const auto offset = begin - format_.data();
-    const auto size = end - begin;
-    parts_.push_back(part(string_view_metadata(offset, size)));
+  static FMT_CONSTEXPR format_part make_arg_index(unsigned index) {
+    return format_part(kind::arg_index, index);
   }
-
-  FMT_CONSTEXPR void on_arg_id() {
-    parts_.push_back(part(parse_context_.next_arg_id()));
+  static FMT_CONSTEXPR format_part make_arg_name(basic_string_view<Char> name) {
+    return format_part(kind::arg_name, name);
   }
-
-  FMT_CONSTEXPR void on_arg_id(unsigned id) {
-    parse_context_.check_arg_id(id);
-    parts_.push_back(part(id));
+  static FMT_CONSTEXPR format_part make_text(basic_string_view<Char> text) {
+    return format_part(kind::text, text);
   }
-
-  FMT_CONSTEXPR void on_arg_id(basic_string_view<Char> id) {
-    const auto view = string_view_metadata(format_, id);
-    const auto arg_id = typename part::named_argument_id(view);
-    parts_.push_back(part(arg_id));
+  static FMT_CONSTEXPR format_part make_replacement(replacement repl) {
+    return format_part(kind::replacement, repl);
   }
-
-  FMT_CONSTEXPR void on_replacement_field(const Char* ptr) {
-    parts_.back().end_of_argument_id = ptr - format_.begin();
-  }
-
-  FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
-                                            const Char* end) {
-    const auto specs_offset = to_unsigned(begin - format_.begin());
-
-    using parse_context = basic_parse_context<Char>;
-    internal::dynamic_format_specs<Char> parsed_specs;
-    dynamic_specs_handler<parse_context> handler(parsed_specs, parse_context_);
-    begin = parse_format_specs(begin, end, handler);
-
-    if (*begin != '}') on_error("missing '}' in format string");
-
-    auto& last_part = parts_.back();
-    auto specs = last_part.which == part::kind::argument_id
-                     ? typename part::specification(last_part.val.arg_id)
-                     : typename part::specification(last_part.val.named_arg_id);
-    specs.parsed_specs = parsed_specs;
-    last_part = part(specs);
-    last_part.end_of_argument_id = specs_offset;
-    return begin;
-  }
-
- private:
-  PartsContainer& parts_;
-  basic_string_view<Char> format_;
-  basic_parse_context<Char> parse_context_;
-};
-
-template <typename Format, typename PreparedPartsProvider, typename... Args>
-class prepared_format {
- public:
-  using char_type = char_t<Format>;
-  using format_part_t = format_part<char_type>;
-
-  constexpr prepared_format(Format f)
-      : format_(std::move(f)), parts_provider_(to_string_view(format_)) {}
-
-  prepared_format() = delete;
-
-  using context = buffer_context<char_type>;
-
-  template <typename Range, typename Context>
-  auto vformat_to(Range out, basic_format_args<Context> args) const ->
-      typename Context::iterator {
-    const auto format_view = internal::to_string_view(format_);
-    basic_parse_context<char_type> parse_ctx(format_view);
-    Context ctx(out.begin(), args);
-
-    const auto& parts = parts_provider_.parts();
-    for (auto part_it = parts.begin(); part_it != parts.end(); ++part_it) {
-      const auto& part = *part_it;
-      const auto& value = part.val;
-
-      switch (part.which) {
-      case format_part_t::kind::text: {
-        const auto text = value.text.to_view(format_view.data());
-        auto output = ctx.out();
-        auto&& it = internal::reserve(output, text.size());
-        it = std::copy_n(text.begin(), text.size(), it);
-        ctx.advance_to(output);
-      } break;
-
-      case format_part_t::kind::argument_id: {
-        advance_parse_context_to_specification(parse_ctx, part);
-        format_arg<Range>(parse_ctx, ctx, value.arg_id);
-      } break;
-
-      case format_part_t::kind::named_argument_id: {
-        advance_parse_context_to_specification(parse_ctx, part);
-        const auto named_arg_id =
-            value.named_arg_id.to_view(format_view.data());
-        format_arg<Range>(parse_ctx, ctx, named_arg_id);
-      } break;
-      case format_part_t::kind::specification: {
-        const auto& arg_id_value = value.spec.arg_id.val;
-        const auto arg = value.spec.arg_id.which ==
-                                 format_part_t::argument_id::which_arg_id::index
-                             ? ctx.arg(arg_id_value.index)
-                             : ctx.arg(arg_id_value.named_index.to_view(
-                                   to_string_view(format_).data()));
-
-        auto specs = value.spec.parsed_specs;
-
-        handle_dynamic_spec<internal::width_checker>(
-            specs.width, specs.width_ref, ctx, format_view.begin());
-        handle_dynamic_spec<internal::precision_checker>(
-            specs.precision, specs.precision_ref, ctx, format_view.begin());
-
-        check_prepared_specs(specs, arg.type());
-        advance_parse_context_to_specification(parse_ctx, part);
-        ctx.advance_to(
-            visit_format_arg(arg_formatter<Range>(ctx, nullptr, &specs), arg));
-      } break;
-      }
-    }
-
-    return ctx.out();
-  }
-
- private:
-  void advance_parse_context_to_specification(
-      basic_parse_context<char_type>& parse_ctx,
-      const format_part_t& part) const {
-    const auto view = to_string_view(format_);
-    const auto specification_begin = view.data() + part.end_of_argument_id;
-    advance_to(parse_ctx, specification_begin);
-  }
-
-  template <typename Range, typename Context, typename Id>
-  void format_arg(basic_parse_context<char_type>& parse_ctx, Context& ctx,
-                  Id arg_id) const {
-    parse_ctx.check_arg_id(arg_id);
-    const auto stopped_at =
-        visit_format_arg(arg_formatter<Range>(ctx), ctx.arg(arg_id));
-    ctx.advance_to(stopped_at);
-  }
-
-  template <typename Char>
-  void check_prepared_specs(const basic_format_specs<Char>& specs,
-                            internal::type arg_type) const {
-    internal::error_handler h;
-    numeric_specs_checker<internal::error_handler> checker(h, arg_type);
-    if (specs.align == align::numeric) checker.require_numeric_argument();
-    if (specs.sign != sign::none) checker.check_sign();
-    if (specs.alt) checker.require_numeric_argument();
-    if (specs.precision >= 0) checker.check_precision();
-  }
-
- private:
-  Format format_;
-  PreparedPartsProvider parts_provider_;
 };
 
 template <typename Char> struct part_counter {
@@ -276,13 +70,13 @@ template <typename Char> struct part_counter {
   FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
                                             const Char* end) {
     // Find the matching brace.
-    unsigned braces_counter = 0;
+    unsigned brace_counter = 0;
     for (; begin != end; ++begin) {
       if (*begin == '{') {
-        ++braces_counter;
+        ++brace_counter;
       } else if (*begin == '}') {
-        if (braces_counter == 0u) break;
-        --braces_counter;
+        if (brace_counter == 0u) break;
+        --brace_counter;
       }
     }
     return begin;
@@ -291,156 +85,486 @@ template <typename Char> struct part_counter {
   FMT_CONSTEXPR void on_error(const char*) {}
 };
 
-template <typename Format> class compiletime_prepared_parts_type_provider {
- private:
-  using char_type = char_t<Format>;
+// Counts the number of parts in a format string.
+template <typename Char>
+FMT_CONSTEXPR unsigned count_parts(basic_string_view<Char> format_str) {
+  part_counter<Char> counter;
+  parse_format_string<true>(format_str, counter);
+  return counter.num_parts;
+}
 
-  static FMT_CONSTEXPR unsigned count_parts() {
-    FMT_CONSTEXPR_DECL const auto text = to_string_view(Format{});
-    part_counter<char_type> counter;
-    internal::parse_format_string</*IS_CONSTEXPR=*/true>(text, counter);
-    return counter.num_parts;
+template <typename Char, typename PartHandler>
+class format_string_compiler : public error_handler {
+ private:
+  using part = format_part<Char>;
+
+  PartHandler handler_;
+  part part_;
+  basic_string_view<Char> format_str_;
+  basic_format_parse_context<Char> parse_context_;
+
+ public:
+  FMT_CONSTEXPR format_string_compiler(basic_string_view<Char> format_str,
+                                       PartHandler handler)
+      : handler_(handler),
+        format_str_(format_str),
+        parse_context_(format_str) {}
+
+  FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
+    if (begin != end)
+      handler_(part::make_text({begin, to_unsigned(end - begin)}));
   }
 
-// Workaround for old compilers. Compiletime parts preparation will not be
-// performed with them anyway.
+  FMT_CONSTEXPR void on_arg_id() {
+    part_ = part::make_arg_index(parse_context_.next_arg_id());
+  }
+
+  FMT_CONSTEXPR void on_arg_id(unsigned id) {
+    parse_context_.check_arg_id(id);
+    part_ = part::make_arg_index(id);
+  }
+
+  FMT_CONSTEXPR void on_arg_id(basic_string_view<Char> id) {
+    part_ = part::make_arg_name(id);
+  }
+
+  FMT_CONSTEXPR void on_replacement_field(const Char* ptr) {
+    part_.arg_id_end = ptr;
+    handler_(part_);
+  }
+
+  FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
+                                            const Char* end) {
+    auto repl = typename part::replacement();
+    dynamic_specs_handler<basic_format_parse_context<Char>> handler(
+        repl.specs, parse_context_);
+    auto it = parse_format_specs(begin, end, handler);
+    if (*it != '}') on_error("missing '}' in format string");
+    repl.arg_id = part_.part_kind == part::kind::arg_index
+                      ? arg_ref<Char>(part_.val.arg_index)
+                      : arg_ref<Char>(part_.val.str);
+    auto part = part::make_replacement(repl);
+    part.arg_id_end = begin;
+    handler_(part);
+    return it;
+  }
+};
+
+// Compiles a format string and invokes handler(part) for each parsed part.
+template <bool IS_CONSTEXPR, typename Char, typename PartHandler>
+FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str,
+                                         PartHandler handler) {
+  parse_format_string<IS_CONSTEXPR>(
+      format_str,
+      format_string_compiler<Char, PartHandler>(format_str, handler));
+}
+
+template <typename Range, typename Context, typename Id>
+void format_arg(
+    basic_format_parse_context<typename Range::value_type>& parse_ctx,
+    Context& ctx, Id arg_id) {
+  ctx.advance_to(
+      visit_format_arg(arg_formatter<Range>(ctx, &parse_ctx), ctx.arg(arg_id)));
+}
+
+// vformat_to is defined in a subnamespace to prevent ADL.
+namespace cf {
+template <typename Context, typename Range, typename CompiledFormat>
+auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
+    -> typename Context::iterator {
+  using char_type = typename Context::char_type;
+  basic_format_parse_context<char_type> parse_ctx(
+      to_string_view(cf.format_str_));
+  Context ctx(out.begin(), args);
+
+  const auto& parts = cf.parts();
+  for (auto part_it = std::begin(parts); part_it != std::end(parts);
+       ++part_it) {
+    const auto& part = *part_it;
+    const auto& value = part.val;
+
+    using format_part_t = format_part<char_type>;
+    switch (part.part_kind) {
+    case format_part_t::kind::text: {
+      const auto text = value.str;
+      auto output = ctx.out();
+      auto&& it = reserve(output, text.size());
+      it = std::copy_n(text.begin(), text.size(), it);
+      ctx.advance_to(output);
+      break;
+    }
+
+    case format_part_t::kind::arg_index:
+      advance_to(parse_ctx, part.arg_id_end);
+      internal::format_arg<Range>(parse_ctx, ctx, value.arg_index);
+      break;
+
+    case format_part_t::kind::arg_name:
+      advance_to(parse_ctx, part.arg_id_end);
+      internal::format_arg<Range>(parse_ctx, ctx, value.str);
+      break;
+
+    case format_part_t::kind::replacement: {
+      const auto& arg_id_value = value.repl.arg_id.val;
+      const auto arg = value.repl.arg_id.kind == arg_id_kind::index
+                           ? ctx.arg(arg_id_value.index)
+                           : ctx.arg(arg_id_value.name);
+
+      auto specs = value.repl.specs;
+
+      handle_dynamic_spec<width_checker>(specs.width, specs.width_ref, ctx);
+      handle_dynamic_spec<precision_checker>(specs.precision,
+                                             specs.precision_ref, ctx);
+
+      error_handler h;
+      numeric_specs_checker<error_handler> checker(h, arg.type());
+      if (specs.align == align::numeric) checker.require_numeric_argument();
+      if (specs.sign != sign::none) checker.check_sign();
+      if (specs.alt) checker.require_numeric_argument();
+      if (specs.precision >= 0) checker.check_precision();
+
+      advance_to(parse_ctx, part.arg_id_end);
+      ctx.advance_to(
+          visit_format_arg(arg_formatter<Range>(ctx, nullptr, &specs), arg));
+      break;
+    }
+    }
+  }
+  return ctx.out();
+}
+}  // namespace cf
+
+struct basic_compiled_format {};
+
+template <typename S, typename = void>
+struct compiled_format_base : basic_compiled_format {
+  using char_type = char_t<S>;
+  using parts_container = std::vector<internal::format_part<char_type>>;
+
+  parts_container compiled_parts;
+
+  explicit compiled_format_base(basic_string_view<char_type> format_str) {
+    compile_format_string<false>(format_str,
+                                 [this](const format_part<char_type>& part) {
+                                   compiled_parts.push_back(part);
+                                 });
+  }
+
+  const parts_container& parts() const { return compiled_parts; }
+};
+
+template <typename Char, unsigned N> struct format_part_array {
+  format_part<Char> data[N] = {};
+  FMT_CONSTEXPR format_part_array() = default;
+};
+
+template <typename Char, unsigned N>
+FMT_CONSTEXPR format_part_array<Char, N> compile_to_parts(
+    basic_string_view<Char> format_str) {
+  format_part_array<Char, N> parts;
+  unsigned counter = 0;
+  // This is not a lambda for compatibility with older compilers.
+  struct {
+    format_part<Char>* parts;
+    unsigned* counter;
+    FMT_CONSTEXPR void operator()(const format_part<Char>& part) {
+      parts[(*counter)++] = part;
+    }
+  } collector{parts.data, &counter};
+  compile_format_string<true>(format_str, collector);
+  if (counter < N) {
+    parts.data[counter] =
+        format_part<Char>::make_text(basic_string_view<Char>());
+  }
+  return parts;
+}
+
+template <typename T> constexpr const T& constexpr_max(const T& a, const T& b) {
+  return (a < b) ? b : a;
+}
+
+template <typename S>
+struct compiled_format_base<S, enable_if_t<is_compile_string<S>::value>>
+    : basic_compiled_format {
+  using char_type = char_t<S>;
+
+  FMT_CONSTEXPR explicit compiled_format_base(basic_string_view<char_type>) {}
+
+// Workaround for old compilers. Format string compilation will not be
+// performed there anyway.
 #if FMT_USE_CONSTEXPR
-  static FMT_CONSTEXPR_DECL const unsigned number_of_format_parts =
-      compiletime_prepared_parts_type_provider::count_parts();
+  static FMT_CONSTEXPR_DECL const unsigned num_format_parts =
+      constexpr_max(count_parts(to_string_view(S())), 1u);
 #else
-  static const unsigned number_of_format_parts = 0u;
+  static const unsigned num_format_parts = 1;
 #endif
 
- public:
-  template <unsigned N> struct format_parts_array {
-    using value_type = format_part<char_type>;
+  using parts_container = format_part<char_type>[num_format_parts];
 
-    FMT_CONSTEXPR format_parts_array() : arr{} {}
-
-    FMT_CONSTEXPR value_type& operator[](unsigned ind) { return arr[ind]; }
-
-    FMT_CONSTEXPR const value_type* begin() const { return arr; }
-    FMT_CONSTEXPR const value_type* end() const { return begin() + N; }
-
-   private:
-    value_type arr[N];
-  };
-
-  struct empty {
-    // Parts preparator will search for it
-    using value_type = format_part<char_type>;
-  };
-
-  using type = conditional_t<number_of_format_parts != 0,
-                             format_parts_array<number_of_format_parts>, empty>;
-};
-
-template <typename Parts> class compiletime_prepared_parts_collector {
- private:
-  using format_part = typename Parts::value_type;
-
- public:
-  FMT_CONSTEXPR explicit compiletime_prepared_parts_collector(Parts& parts)
-      : parts_{parts}, counter_{0u} {}
-
-  FMT_CONSTEXPR void push_back(format_part part) { parts_[counter_++] = part; }
-
-  FMT_CONSTEXPR format_part& back() { return parts_[counter_ - 1]; }
-
- private:
-  Parts& parts_;
-  unsigned counter_;
-};
-
-template <typename PartsContainer, typename Char>
-FMT_CONSTEXPR PartsContainer prepare_parts(basic_string_view<Char> format) {
-  PartsContainer parts;
-  internal::parse_format_string</*IS_CONSTEXPR=*/false>(
-      format, format_preparation_handler<Char, PartsContainer>(format, parts));
-  return parts;
-}
-
-template <typename PartsContainer, typename Char>
-FMT_CONSTEXPR PartsContainer
-prepare_compiletime_parts(basic_string_view<Char> format) {
-  using collector = compiletime_prepared_parts_collector<PartsContainer>;
-
-  PartsContainer parts;
-  collector c(parts);
-  internal::parse_format_string</*IS_CONSTEXPR=*/true>(
-      format, format_preparation_handler<Char, collector>(format, c));
-  return parts;
-}
-
-template <typename PartsContainer> class runtime_parts_provider {
- public:
-  runtime_parts_provider() = delete;
-  template <typename Char>
-  runtime_parts_provider(basic_string_view<Char> format)
-      : parts_(prepare_parts<PartsContainer>(format)) {}
-
-  const PartsContainer& parts() const { return parts_; }
-
- private:
-  PartsContainer parts_;
-};
-
-template <typename Format, typename PartsContainer>
-struct compiletime_parts_provider {
-  compiletime_parts_provider() = delete;
-  template <typename Char>
-  FMT_CONSTEXPR compiletime_parts_provider(basic_string_view<Char>) {}
-
-  const PartsContainer& parts() const {
-    static FMT_CONSTEXPR_DECL const PartsContainer prepared_parts =
-        prepare_compiletime_parts<PartsContainer>(
-            internal::to_string_view(Format{}));
-
-    return prepared_parts;
+  const parts_container& parts() const {
+    static FMT_CONSTEXPR_DECL const auto compiled_parts =
+        compile_to_parts<char_type, num_format_parts>(
+            internal::to_string_view(S()));
+    return compiled_parts.data;
   }
 };
+
+template <typename S, typename... Args>
+class compiled_format : private compiled_format_base<S> {
+ public:
+  using typename compiled_format_base<S>::char_type;
+
+ private:
+  basic_string_view<char_type> format_str_;
+
+  template <typename Context, typename Range, typename CompiledFormat>
+  friend auto cf::vformat_to(Range out, CompiledFormat& cf,
+                             basic_format_args<Context> args) ->
+      typename Context::iterator;
+
+ public:
+  compiled_format() = delete;
+  explicit constexpr compiled_format(basic_string_view<char_type> format_str)
+      : compiled_format_base<S>(format_str), format_str_(format_str) {}
+};
+
+#ifdef __cpp_if_constexpr
+template <typename... Args> struct type_list {};
+
+// Returns a reference to the argument at index N from [first, rest...].
+template <int N, typename T, typename... Args>
+constexpr const auto& get(const T& first, const Args&... rest) {
+  static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
+  if constexpr (N == 0)
+    return first;
+  else
+    return get<N - 1>(rest...);
+}
+
+template <int N, typename> struct get_type_impl;
+
+template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
+  using type = remove_cvref_t<decltype(get<N>(std::declval<Args>()...))>;
+};
+
+template <int N, typename T>
+using get_type = typename get_type_impl<N, T>::type;
+
+template <typename Char> struct text {
+  basic_string_view<Char> data;
+  using char_type = Char;
+
+  template <typename OutputIt, typename... Args>
+  OutputIt format(OutputIt out, const Args&...) const {
+    // TODO: reserve
+    return copy_str<Char>(data.begin(), data.end(), out);
+  }
+};
+
+template <typename Char>
+constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
+                               size_t size) {
+  return {{&s[pos], size}};
+}
+
+template <typename Char, typename OutputIt, typename T,
+          std::enable_if_t<std::is_integral_v<T>, int> = 0>
+OutputIt format_default(OutputIt out, T value) {
+  // TODO: reserve
+  format_int fi(value);
+  return std::copy(fi.data(), fi.data() + fi.size(), out);
+}
+
+template <typename Char, typename OutputIt>
+OutputIt format_default(OutputIt out, double value) {
+  writer w(out);
+  w.write(value);
+  return w.out();
+}
+
+template <typename Char, typename OutputIt>
+OutputIt format_default(OutputIt out, Char value) {
+  *out++ = value;
+  return out;
+}
+
+template <typename Char, typename OutputIt>
+OutputIt format_default(OutputIt out, const Char* value) {
+  auto length = std::char_traits<Char>::length(value);
+  return copy_str<Char>(value, value + length, out);
+}
+
+// A replacement field that refers to argument N.
+template <typename Char, typename T, int N> struct field {
+  using char_type = Char;
+
+  template <typename OutputIt, typename... Args>
+  OutputIt format(OutputIt out, const Args&... args) const {
+    // This ensures that the argument type is convertile to `const T&`.
+    const T& arg = get<N>(args...);
+    return format_default<Char>(out, arg);
+  }
+};
+
+template <typename L, typename R> struct concat {
+  L lhs;
+  R rhs;
+  using char_type = typename L::char_type;
+
+  template <typename OutputIt, typename... Args>
+  OutputIt format(OutputIt out, const Args&... args) const {
+    out = lhs.format(out, args...);
+    return rhs.format(out, args...);
+  }
+};
+
+template <typename L, typename R>
+constexpr concat<L, R> make_concat(L lhs, R rhs) {
+  return {lhs, rhs};
+}
+
+struct unknown_format {};
+
+template <typename Char>
+constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
+  for (size_t size = str.size(); pos != size; ++pos) {
+    if (str[pos] == '{' || str[pos] == '}') break;
+  }
+  return pos;
+}
+
+template <typename Args, size_t POS, int ID, typename S>
+constexpr auto compile_format_string(S format_str);
+
+template <typename Args, size_t POS, int ID, typename T, typename S>
+constexpr auto parse_tail(T head, S format_str) {
+  if constexpr (POS != to_string_view(format_str).size()) {
+    constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
+    if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
+                               unknown_format>())
+      return tail;
+    else
+      return make_concat(head, tail);
+  } else {
+    return head;
+  }
+}
+
+// Compiles a non-empty format string and returns the compiled representation
+// or unknown_format() on unrecognized input.
+template <typename Args, size_t POS, int ID, typename S>
+constexpr auto compile_format_string(S format_str) {
+  using char_type = typename S::char_type;
+  constexpr basic_string_view<char_type> str = format_str;
+  if constexpr (str[POS] == '{') {
+    if (POS + 1 == str.size())
+      throw format_error("unmatched '{' in format string");
+    if constexpr (str[POS + 1] == '{') {
+      return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
+    } else if constexpr (str[POS + 1] == '}') {
+      using type = get_type<ID, Args>;
+      if constexpr (std::is_same<type, int>::value) {
+        return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
+                                                 format_str);
+      } else {
+        return unknown_format();
+      }
+    } else {
+      return unknown_format();
+    }
+  } else if constexpr (str[POS] == '}') {
+    if (POS + 1 == str.size())
+      throw format_error("unmatched '}' in format string");
+    return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
+  } else {
+    constexpr auto end = parse_text(str, POS + 1);
+    return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
+                                     format_str);
+  }
+}
+#endif  // __cpp_if_constexpr
 }  // namespace internal
 
 #if FMT_USE_CONSTEXPR
+#  ifdef __cpp_if_constexpr
 template <typename... Args, typename S,
           FMT_ENABLE_IF(is_compile_string<S>::value)>
-FMT_CONSTEXPR auto compile(S format_str) -> internal::prepared_format<
-    S,
-    internal::compiletime_parts_provider<
-        S,
-        typename internal::compiletime_prepared_parts_type_provider<S>::type>,
-    Args...> {
-  return format_str;
-}
-#endif
-
-template <typename... Args, typename Char, size_t N>
-auto compile(const Char (&format_str)[N]) -> internal::prepared_format<
-    std::basic_string<Char>,
-    internal::runtime_parts_provider<std::vector<internal::format_part<Char>>>,
-    Args...> {
-  return std::basic_string<Char>(format_str, N - 1);
+constexpr auto compile(S format_str) {
+  constexpr basic_string_view<typename S::char_type> str = format_str;
+  if constexpr (str.size() == 0) {
+    return internal::make_text(str, 0, 0);
+  } else {
+    constexpr auto result =
+        internal::compile_format_string<internal::type_list<Args...>, 0, 0>(
+            format_str);
+    if constexpr (std::is_same<remove_cvref_t<decltype(result)>,
+                               internal::unknown_format>()) {
+      return internal::compiled_format<S, Args...>(to_string_view(format_str));
+    } else {
+      return result;
+    }
+  }
 }
 
 template <typename CompiledFormat, typename... Args,
-          typename Char = typename CompiledFormat::char_type>
+          typename Char = typename CompiledFormat::char_type,
+          FMT_ENABLE_IF(!std::is_base_of<internal::basic_compiled_format,
+                                         CompiledFormat>::value)>
 std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
   basic_memory_buffer<Char> buffer;
-  using range = internal::buffer_range<Char>;
+  using range = buffer_range<Char>;
   using context = buffer_context<Char>;
-  cf.template vformat_to<range, context>(range(buffer),
-                                         {make_format_args<context>(args...)});
+  cf.format(std::back_inserter(buffer), args...);
   return to_string(buffer);
 }
 
-template <typename OutputIt, typename CompiledFormat, typename... Args>
+template <typename OutputIt, typename CompiledFormat, typename... Args,
+          FMT_ENABLE_IF(!std::is_base_of<internal::basic_compiled_format,
+                                         CompiledFormat>::value)>
+OutputIt format_to(OutputIt out, const CompiledFormat& cf,
+                   const Args&... args) {
+  return cf.format(out, args...);
+}
+#  else
+template <typename... Args, typename S,
+          FMT_ENABLE_IF(is_compile_string<S>::value)>
+constexpr auto compile(S format_str) -> internal::compiled_format<S, Args...> {
+  return internal::compiled_format<S, Args...>(to_string_view(format_str));
+}
+#  endif  // __cpp_if_constexpr
+#endif    // FMT_USE_CONSTEXPR
+
+// Compiles the format string which must be a string literal.
+template <typename... Args, typename Char, size_t N>
+auto compile(const Char (&format_str)[N])
+    -> internal::compiled_format<const Char*, Args...> {
+  return internal::compiled_format<const Char*, Args...>(
+      basic_string_view<Char>(format_str, N - 1));
+}
+
+template <typename CompiledFormat, typename... Args,
+          typename Char = typename CompiledFormat::char_type,
+          FMT_ENABLE_IF(std::is_base_of<internal::basic_compiled_format,
+                                        CompiledFormat>::value)>
+std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
+  basic_memory_buffer<Char> buffer;
+  using range = buffer_range<Char>;
+  using context = buffer_context<Char>;
+  internal::cf::vformat_to<context>(range(buffer), cf,
+                                    {make_format_args<context>(args...)});
+  return to_string(buffer);
+}
+
+template <typename OutputIt, typename CompiledFormat, typename... Args,
+          FMT_ENABLE_IF(std::is_base_of<internal::basic_compiled_format,
+                                        CompiledFormat>::value)>
 OutputIt format_to(OutputIt out, const CompiledFormat& cf,
                    const Args&... args) {
   using char_type = typename CompiledFormat::char_type;
   using range = internal::output_range<OutputIt, char_type>;
   using context = format_context_t<OutputIt, char_type>;
-  return cf.template vformat_to<range, context>(
-      range(out), {make_format_args<context>(args...)});
+  return internal::cf::vformat_to<context>(
+      range(out), cf, {make_format_args<context>(args...)});
 }
 
 template <typename OutputIt, typename CompiledFormat, typename... Args,
@@ -455,10 +579,7 @@ format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
 
 template <typename CompiledFormat, typename... Args>
 std::size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
-  return fmt::format_to(
-             internal::counting_iterator<typename CompiledFormat::char_type>(),
-             cf, args...)
-      .count();
+  return format_to(internal::counting_iterator(), cf, args...).count();
 }
 
 FMT_END_NAMESPACE

third_party/spdlog/include/spdlog/fmt/bundled/core.h

@@ -8,7 +8,6 @@
 #ifndef FMT_CORE_H_
 #define FMT_CORE_H_
 
-#include <cassert>
 #include <cstdio>  // std::FILE
 #include <cstring>
 #include <iterator>
@@ -16,7 +15,7 @@
 #include <type_traits>
 
 // The fmt library version in the form major * 10000 + minor * 100 + patch.
-#define FMT_VERSION 60000
+#define FMT_VERSION 60101
 
 #ifdef __has_feature
 #  define FMT_HAS_FEATURE(x) __has_feature(x)
@@ -49,6 +48,12 @@
 #  define FMT_HAS_GXX_CXX11 0
 #endif
 
+#ifdef __NVCC__
+#  define FMT_NVCC __NVCC__
+#else
+#  define FMT_NVCC 0
+#endif
+
 #ifdef _MSC_VER
 #  define FMT_MSC_VER _MSC_VER
 #else
@@ -60,7 +65,8 @@
 #ifndef FMT_USE_CONSTEXPR
 #  define FMT_USE_CONSTEXPR                                           \
     (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || \
-     (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L))
+     (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L)) &&           \
+        !FMT_NVCC
 #endif
 #if FMT_USE_CONSTEXPR
 #  define FMT_CONSTEXPR constexpr
@@ -133,6 +139,13 @@
 #  endif
 #endif
 
+// Workaround broken [[deprecated]] in the Intel compiler and NVCC.
+#if defined(__INTEL_COMPILER) || FMT_NVCC
+#  define FMT_DEPRECATED_ALIAS
+#else
+#  define FMT_DEPRECATED_ALIAS FMT_DEPRECATED
+#endif
+
 #ifndef FMT_BEGIN_NAMESPACE
 #  if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || \
       FMT_MSC_VER >= 1900
@@ -173,10 +186,6 @@
 #  define FMT_EXTERN
 #endif
 
-#ifndef FMT_ASSERT
-#  define FMT_ASSERT(condition, message) assert((condition) && message)
-#endif
-
 // libc++ supports string_view in pre-c++17.
 #if (FMT_HAS_INCLUDE(<string_view>) &&                       \
      (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \
@@ -200,6 +209,8 @@ template <typename T>
 using remove_reference_t = typename std::remove_reference<T>::type;
 template <typename T>
 using remove_const_t = typename std::remove_const<T>::type;
+template <typename T>
+using remove_cvref_t = typename std::remove_cv<remove_reference_t<T>>::type;
 
 struct monostate {};
 
@@ -213,6 +224,19 @@ namespace internal {
 // A workaround for gcc 4.8 to make void_t work in a SFINAE context.
 template <typename... Ts> struct void_t_impl { using type = void; };
 
+FMT_API void assert_fail(const char* file, int line, const char* message);
+
+#ifndef FMT_ASSERT
+#  ifdef NDEBUG
+#    define FMT_ASSERT(condition, message)
+#  else
+#    define FMT_ASSERT(condition, message) \
+      ((condition)                         \
+           ? void()                        \
+           : fmt::internal::assert_fail(__FILE__, __LINE__, (message)))
+#  endif
+#endif
+
 #if defined(FMT_USE_STRING_VIEW)
 template <typename Char> using std_string_view = std::basic_string_view<Char>;
 #elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW)
@@ -222,7 +246,21 @@ using std_string_view = std::experimental::basic_string_view<Char>;
 template <typename T> struct std_string_view {};
 #endif
 
-// Casts nonnegative integer to unsigned.
+#ifdef FMT_USE_INT128
+// Do nothing.
+#elif defined(__SIZEOF_INT128__)
+#  define FMT_USE_INT128 1
+using int128_t = __int128_t;
+using uint128_t = __uint128_t;
+#else
+#  define FMT_USE_INT128 0
+#endif
+#if !FMT_USE_INT128
+struct int128_t {};
+struct uint128_t {};
+#endif
+
+// Casts a nonnegative integer to unsigned.
 template <typename Int>
 FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value) {
   FMT_ASSERT(value >= 0, "negative value");
@@ -266,10 +304,11 @@ template <typename Char> class basic_string_view {
       : data_(s), size_(std::char_traits<Char>::length(s)) {}
 
   /** Constructs a string reference from a ``std::basic_string`` object. */
-  template <typename Alloc>
-  FMT_CONSTEXPR basic_string_view(const std::basic_string<Char, Alloc>& s)
-      FMT_NOEXCEPT : data_(s.data()),
-                     size_(s.size()) {}
+  template <typename Traits, typename Alloc>
+  FMT_CONSTEXPR basic_string_view(
+      const std::basic_string<Char, Traits, Alloc>& s) FMT_NOEXCEPT
+      : data_(s.data()),
+        size_(s.size()) {}
 
   template <
       typename S,
@@ -286,6 +325,8 @@ template <typename Char> class basic_string_view {
   FMT_CONSTEXPR iterator begin() const { return data_; }
   FMT_CONSTEXPR iterator end() const { return data_ + size_; }
 
+  FMT_CONSTEXPR const Char& operator[](size_t pos) const { return data_[pos]; }
+
   FMT_CONSTEXPR void remove_prefix(size_t n) {
     data_ += n;
     size_ -= n;
@@ -357,10 +398,10 @@ inline basic_string_view<Char> to_string_view(const Char* s) {
   return s;
 }
 
-template <typename Char, typename Traits, typename Allocator>
+template <typename Char, typename Traits, typename Alloc>
 inline basic_string_view<Char> to_string_view(
-    const std::basic_string<Char, Traits, Allocator>& s) {
-  return {s.data(), s.size()};
+    const std::basic_string<Char, Traits, Alloc>& s) {
+  return s;
 }
 
 template <typename Char>
@@ -405,8 +446,8 @@ template <typename S> struct char_t_impl<S, enable_if_t<is_string<S>::value>> {
 };
 
 struct error_handler {
-  FMT_CONSTEXPR error_handler() {}
-  FMT_CONSTEXPR error_handler(const error_handler&) {}
+  FMT_CONSTEXPR error_handler() = default;
+  FMT_CONSTEXPR error_handler(const error_handler&) = default;
 
   // This function is intentionally not constexpr to give a compile-time error.
   FMT_NORETURN FMT_API void on_error(const char* message);
@@ -416,10 +457,24 @@ struct error_handler {
 /** String's character type. */
 template <typename S> using char_t = typename internal::char_t_impl<S>::type;
 
-// Parsing context consisting of a format string range being parsed and an
-// argument counter for automatic indexing.
+/**
+  \rst
+  Parsing context consisting of a format string range being parsed and an
+  argument counter for automatic indexing.
+
+  You can use one of the following type aliases for common character types:
+
+  +-----------------------+-------------------------------------+
+  | Type                  | Definition                          |
+  +=======================+=====================================+
+  | format_parse_context  | basic_format_parse_context<char>    |
+  +-----------------------+-------------------------------------+
+  | wformat_parse_context | basic_format_parse_context<wchar_t> |
+  +-----------------------+-------------------------------------+
+  \endrst
+ */
 template <typename Char, typename ErrorHandler = internal::error_handler>
-class basic_parse_context : private ErrorHandler {
+class basic_format_parse_context : private ErrorHandler {
  private:
   basic_string_view<Char> format_str_;
   int next_arg_id_;
@@ -428,38 +483,47 @@ class basic_parse_context : private ErrorHandler {
   using char_type = Char;
   using iterator = typename basic_string_view<Char>::iterator;
 
-  explicit FMT_CONSTEXPR basic_parse_context(basic_string_view<Char> format_str,
-                                             ErrorHandler eh = ErrorHandler())
+  explicit FMT_CONSTEXPR basic_format_parse_context(
+      basic_string_view<Char> format_str, ErrorHandler eh = ErrorHandler())
       : ErrorHandler(eh), format_str_(format_str), next_arg_id_(0) {}
 
-  // Returns an iterator to the beginning of the format string range being
-  // parsed.
+  /**
+    Returns an iterator to the beginning of the format string range being
+    parsed.
+   */
   FMT_CONSTEXPR iterator begin() const FMT_NOEXCEPT {
     return format_str_.begin();
   }
 
-  // Returns an iterator past the end of the format string range being parsed.
+  /**
+    Returns an iterator past the end of the format string range being parsed.
+   */
   FMT_CONSTEXPR iterator end() const FMT_NOEXCEPT { return format_str_.end(); }
 
-  // Advances the begin iterator to ``it``.
+  /** Advances the begin iterator to ``it``. */
   FMT_CONSTEXPR void advance_to(iterator it) {
     format_str_.remove_prefix(internal::to_unsigned(it - begin()));
   }
 
-  // Returns the next argument index.
+  /**
+    Reports an error if using the manual argument indexing; otherwise returns
+    the next argument index and switches to the automatic indexing.
+   */
   FMT_CONSTEXPR int next_arg_id() {
     if (next_arg_id_ >= 0) return next_arg_id_++;
     on_error("cannot switch from manual to automatic argument indexing");
     return 0;
   }
 
-  FMT_CONSTEXPR bool check_arg_id(int) {
-    if (next_arg_id_ > 0) {
+  /**
+    Reports an error if using the automatic argument indexing; otherwise
+    switches to the manual indexing.
+   */
+  FMT_CONSTEXPR void check_arg_id(int) {
+    if (next_arg_id_ > 0)
       on_error("cannot switch from automatic to manual argument indexing");
-      return false;
-    }
-    next_arg_id_ = -1;
-    return true;
+    else
+      next_arg_id_ = -1;
   }
 
   FMT_CONSTEXPR void check_arg_id(basic_string_view<Char>) {}
@@ -471,11 +535,14 @@ class basic_parse_context : private ErrorHandler {
   FMT_CONSTEXPR ErrorHandler error_handler() const { return *this; }
 };
 
-using format_parse_context = basic_parse_context<char>;
-using wformat_parse_context = basic_parse_context<wchar_t>;
+using format_parse_context = basic_format_parse_context<char>;
+using wformat_parse_context = basic_format_parse_context<wchar_t>;
 
-using parse_context FMT_DEPRECATED = basic_parse_context<char>;
-using wparse_context FMT_DEPRECATED = basic_parse_context<wchar_t>;
+template <typename Char, typename ErrorHandler = internal::error_handler>
+using basic_parse_context FMT_DEPRECATED_ALIAS =
+    basic_format_parse_context<Char, ErrorHandler>;
+using parse_context FMT_DEPRECATED_ALIAS = basic_format_parse_context<char>;
+using wparse_context FMT_DEPRECATED_ALIAS = basic_format_parse_context<wchar_t>;
 
 template <typename Context> class basic_format_arg;
 template <typename Context> class basic_format_args;
@@ -492,20 +559,17 @@ struct FMT_DEPRECATED convert_to_int
     : bool_constant<!std::is_arithmetic<T>::value &&
                     std::is_convertible<T, int>::value> {};
 
-namespace internal {
-
 // Specifies if T has an enabled formatter specialization. A type can be
 // formattable even if it doesn't have a formatter e.g. via a conversion.
 template <typename T, typename Context>
 using has_formatter =
     std::is_constructible<typename Context::template formatter_type<T>>;
 
+namespace internal {
+
 /** A contiguous memory buffer with an optional growing ability. */
 template <typename T> class buffer {
  private:
-  buffer(const buffer&) = delete;
-  void operator=(const buffer&) = delete;
-
   T* ptr_;
   std::size_t size_;
   std::size_t capacity_;
@@ -532,7 +596,9 @@ template <typename T> class buffer {
   using value_type = T;
   using const_reference = const T&;
 
-  virtual ~buffer() {}
+  buffer(const buffer&) = delete;
+  void operator=(const buffer&) = delete;
+  virtual ~buffer() = default;
 
   T* begin() FMT_NOEXCEPT { return ptr_; }
   T* end() FMT_NOEXCEPT { return ptr_ + size_; }
@@ -626,10 +692,13 @@ enum type {
   uint_type,
   long_long_type,
   ulong_long_type,
+  int128_type,
+  uint128_type,
   bool_type,
   char_type,
   last_integer_type = char_type,
   // followed by floating-point types.
+  float_type,
   double_type,
   long_double_type,
   last_numeric_type = long_double_type,
@@ -652,20 +721,23 @@ FMT_TYPE_CONSTANT(int, int_type);
 FMT_TYPE_CONSTANT(unsigned, uint_type);
 FMT_TYPE_CONSTANT(long long, long_long_type);
 FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type);
+FMT_TYPE_CONSTANT(int128_t, int128_type);
+FMT_TYPE_CONSTANT(uint128_t, uint128_type);
 FMT_TYPE_CONSTANT(bool, bool_type);
 FMT_TYPE_CONSTANT(Char, char_type);
+FMT_TYPE_CONSTANT(float, float_type);
 FMT_TYPE_CONSTANT(double, double_type);
 FMT_TYPE_CONSTANT(long double, long_double_type);
 FMT_TYPE_CONSTANT(const Char*, cstring_type);
 FMT_TYPE_CONSTANT(basic_string_view<Char>, string_type);
 FMT_TYPE_CONSTANT(const void*, pointer_type);
 
-FMT_CONSTEXPR bool is_integral(type t) {
+FMT_CONSTEXPR bool is_integral_type(type t) {
   FMT_ASSERT(t != named_arg_type, "invalid argument type");
   return t > none_type && t <= last_integer_type;
 }
 
-FMT_CONSTEXPR bool is_arithmetic(type t) {
+FMT_CONSTEXPR bool is_arithmetic_type(type t) {
   FMT_ASSERT(t != named_arg_type, "invalid argument type");
   return t > none_type && t <= last_numeric_type;
 }
@@ -676,7 +748,7 @@ template <typename Char> struct string_value {
 };
 
 template <typename Context> struct custom_value {
-  using parse_context = basic_parse_context<typename Context::char_type>;
+  using parse_context = basic_format_parse_context<typename Context::char_type>;
   const void* value;
   void (*format)(const void* arg, parse_context& parse_ctx, Context& ctx);
 };
@@ -691,8 +763,11 @@ template <typename Context> class value {
     unsigned uint_value;
     long long long_long_value;
     unsigned long long ulong_long_value;
+    int128_t int128_value;
+    uint128_t uint128_value;
     bool bool_value;
     char_type char_value;
+    float float_value;
     double double_value;
     long double long_double_value;
     const void* pointer;
@@ -705,6 +780,9 @@ template <typename Context> class value {
   FMT_CONSTEXPR value(unsigned val) : uint_value(val) {}
   value(long long val) : long_long_value(val) {}
   value(unsigned long long val) : ulong_long_value(val) {}
+  value(int128_t val) : int128_value(val) {}
+  value(uint128_t val) : uint128_value(val) {}
+  value(float val) : float_value(val) {}
   value(double val) : double_value(val) {}
   value(long double val) : long_double_value(val) {}
   value(bool val) : bool_value(val) {}
@@ -732,9 +810,9 @@ template <typename Context> class value {
  private:
   // Formats an argument of a custom type, such as a user-defined class.
   template <typename T, typename Formatter>
-  static void format_custom_arg(const void* arg,
-                                basic_parse_context<char_type>& parse_ctx,
-                                Context& ctx) {
+  static void format_custom_arg(
+      const void* arg, basic_format_parse_context<char_type>& parse_ctx,
+      Context& ctx) {
     Formatter f;
     parse_ctx.advance_to(f.parse(parse_ctx));
     ctx.advance_to(f.format(*static_cast<const T*>(arg), ctx));
@@ -764,6 +842,8 @@ template <typename Context> struct arg_mapper {
   FMT_CONSTEXPR ulong_type map(unsigned long val) { return val; }
   FMT_CONSTEXPR long long map(long long val) { return val; }
   FMT_CONSTEXPR unsigned long long map(unsigned long long val) { return val; }
+  FMT_CONSTEXPR int128_t map(int128_t val) { return val; }
+  FMT_CONSTEXPR uint128_t map(uint128_t val) { return val; }
   FMT_CONSTEXPR bool map(bool val) { return val; }
 
   template <typename T, FMT_ENABLE_IF(is_char<T>::value)>
@@ -774,7 +854,7 @@ template <typename Context> struct arg_mapper {
     return val;
   }
 
-  FMT_CONSTEXPR double map(float val) { return static_cast<double>(val); }
+  FMT_CONSTEXPR float map(float val) { return val; }
   FMT_CONSTEXPR double map(double val) { return val; }
   FMT_CONSTEXPR long double map(long double val) { return val; }
 
@@ -793,6 +873,15 @@ template <typename Context> struct arg_mapper {
   FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) {
     return basic_string_view<char_type>(val);
   }
+  template <
+      typename T,
+      FMT_ENABLE_IF(
+          std::is_constructible<std_string_view<char_type>, T>::value &&
+          !std::is_constructible<basic_string_view<char_type>, T>::value &&
+          !is_string<T>::value)>
+  FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) {
+    return std_string_view<char_type>(val);
+  }
   FMT_CONSTEXPR const char* map(const signed char* val) {
     static_assert(std::is_same<char_type, char>::value, "invalid string type");
     return reinterpret_cast<const char*>(val);
@@ -818,11 +907,14 @@ template <typename Context> struct arg_mapper {
             FMT_ENABLE_IF(std::is_enum<T>::value &&
                           !has_formatter<T, Context>::value &&
                           !has_fallback_formatter<T, Context>::value)>
-  FMT_CONSTEXPR int map(const T& val) {
-    return static_cast<int>(val);
+  FMT_CONSTEXPR auto map(const T& val) -> decltype(
+      map(static_cast<typename std::underlying_type<T>::type>(val))) {
+    return map(static_cast<typename std::underlying_type<T>::type>(val));
   }
   template <typename T,
             FMT_ENABLE_IF(!is_string<T>::value && !is_char<T>::value &&
+                          !std::is_constructible<basic_string_view<char_type>,
+                                                 T>::value &&
                           (has_formatter<T, Context>::value ||
                            has_fallback_formatter<T, Context>::value))>
   FMT_CONSTEXPR const T& map(const T& val) {
@@ -841,12 +933,13 @@ template <typename Context> struct arg_mapper {
 // A type constant after applying arg_mapper<Context>.
 template <typename T, typename Context>
 using mapped_type_constant =
-    type_constant<decltype(arg_mapper<Context>().map(std::declval<T>())),
+    type_constant<decltype(arg_mapper<Context>().map(std::declval<const T&>())),
                   typename Context::char_type>;
 
+enum { packed_arg_bits = 5 };
 // Maximum number of arguments with packed types.
-enum { max_packed_args = 15 };
-enum : unsigned long long { is_unpacked_bit = 1ull << 63 };
+enum { max_packed_args = 63 / packed_arg_bits };
+enum : unsigned long long { is_unpacked_bit = 1ULL << 63 };
 
 template <typename Context> class arg_map;
 }  // namespace internal
@@ -877,7 +970,8 @@ template <typename Context> class basic_format_arg {
    public:
     explicit handle(internal::custom_value<Context> custom) : custom_(custom) {}
 
-    void format(basic_parse_context<char_type>& parse_ctx, Context& ctx) const {
+    void format(basic_format_parse_context<char_type>& parse_ctx,
+                Context& ctx) const {
       custom_.format(custom_.value, parse_ctx, ctx);
     }
 
@@ -893,8 +987,8 @@ template <typename Context> class basic_format_arg {
 
   internal::type type() const { return type_; }
 
-  bool is_integral() const { return internal::is_integral(type_); }
-  bool is_arithmetic() const { return internal::is_arithmetic(type_); }
+  bool is_integral() const { return internal::is_integral_type(type_); }
+  bool is_arithmetic() const { return internal::is_arithmetic_type(type_); }
 };
 
 /**
@@ -923,10 +1017,22 @@ FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis,
     return vis(arg.value_.long_long_value);
   case internal::ulong_long_type:
     return vis(arg.value_.ulong_long_value);
+#if FMT_USE_INT128
+  case internal::int128_type:
+    return vis(arg.value_.int128_value);
+  case internal::uint128_type:
+    return vis(arg.value_.uint128_value);
+#else
+  case internal::int128_type:
+  case internal::uint128_type:
+    break;
+#endif
   case internal::bool_type:
     return vis(arg.value_.bool_value);
   case internal::char_type:
     return vis(arg.value_.char_value);
+  case internal::float_type:
+    return vis(arg.value_.float_value);
   case internal::double_type:
     return vis(arg.value_.double_value);
   case internal::long_double_type:
@@ -948,9 +1054,6 @@ namespace internal {
 // A map from argument names to their values for named arguments.
 template <typename Context> class arg_map {
  private:
-  arg_map(const arg_map&) = delete;
-  void operator=(const arg_map&) = delete;
-
   using char_type = typename Context::char_type;
 
   struct entry {
@@ -968,6 +1071,8 @@ template <typename Context> class arg_map {
   }
 
  public:
+  arg_map(const arg_map&) = delete;
+  void operator=(const arg_map&) = delete;
   arg_map() : map_(nullptr), size_(0) {}
   void init(const basic_format_args<Context>& args);
   ~arg_map() { delete[] map_; }
@@ -990,6 +1095,8 @@ class locale_ref {
   locale_ref() : locale_(nullptr) {}
   template <typename Locale> explicit locale_ref(const Locale& loc);
 
+  explicit operator bool() const FMT_NOEXCEPT { return locale_ != nullptr; }
+
   template <typename Locale> Locale get() const;
 };
 
@@ -998,7 +1105,7 @@ template <typename> constexpr unsigned long long encode_types() { return 0; }
 template <typename Context, typename Arg, typename... Args>
 constexpr unsigned long long encode_types() {
   return mapped_type_constant<Arg, Context>::value |
-         (encode_types<Context, Args...>() << 4);
+         (encode_types<Context, Args...>() << packed_arg_bits);
 }
 
 template <typename Context, typename T>
@@ -1034,14 +1141,13 @@ template <typename OutputIt, typename Char> class basic_format_context {
   internal::arg_map<basic_format_context> map_;
   internal::locale_ref loc_;
 
-  basic_format_context(const basic_format_context&) = delete;
-  void operator=(const basic_format_context&) = delete;
-
  public:
   using iterator = OutputIt;
   using format_arg = basic_format_arg<basic_format_context>;
   template <typename T> using formatter_type = formatter<T, char_type>;
 
+  basic_format_context(const basic_format_context&) = delete;
+  void operator=(const basic_format_context&) = delete;
   /**
    Constructs a ``basic_format_context`` object. References to the arguments are
    stored in the object so make sure they have appropriate lifetimes.
@@ -1100,7 +1206,6 @@ template <typename Context, typename... Args> class format_arg_store {
   static constexpr unsigned long long types =
       is_packed ? internal::encode_types<Context, Args...>()
                 : internal::is_unpacked_bit | num_args;
-  FMT_DEPRECATED static constexpr unsigned long long TYPES = types;
 
   format_arg_store(const Args&... args)
       : data_{internal::make_arg<is_packed, Context>(args)...} {}
@@ -1143,8 +1248,9 @@ template <typename Context> class basic_format_args {
   bool is_packed() const { return (types_ & internal::is_unpacked_bit) == 0; }
 
   internal::type type(int index) const {
-    int shift = index * 4;
-    return static_cast<internal::type>((types_ & (0xfull << shift)) >> shift);
+    int shift = index * internal::packed_arg_bits;
+    unsigned int mask = (1 << internal::packed_arg_bits) - 1;
+    return static_cast<internal::type>((types_ >> shift) & mask);
   }
 
   friend class internal::arg_map<Context>;
@@ -1371,7 +1477,7 @@ inline std::basic_string<Char> format(const S& format_str, Args&&... args) {
 }
 
 FMT_API void vprint(std::FILE* f, string_view format_str, format_args args);
-FMT_API void vprint(std::FILE* f, wstring_view format_str, wformat_args args);
+FMT_API void vprint(string_view format_str, format_args args);
 
 /**
   \rst
@@ -1391,9 +1497,6 @@ inline void print(std::FILE* f, const S& format_str, Args&&... args) {
          internal::make_args_checked<Args...>(format_str, args...));
 }
 
-FMT_API void vprint(string_view format_str, format_args args);
-FMT_API void vprint(wstring_view format_str, wformat_args args);
-
 /**
   \rst
   Prints formatted data to ``stdout``.

third_party/spdlog/include/spdlog/fmt/bundled/ostream.h

@@ -46,9 +46,13 @@ template <class Char> class formatbuf : public std::basic_streambuf<Char> {
 
 template <typename Char> struct test_stream : std::basic_ostream<Char> {
  private:
-  struct null;
   // Hide all operator<< from std::basic_ostream<Char>.
-  void operator<<(null);
+  void_t<> operator<<(null<>);
+  void_t<> operator<<(const Char*);
+
+  template <typename T, FMT_ENABLE_IF(std::is_convertible<T, int>::value &&
+                                      !std::is_enum<T>::value)>
+  void_t<> operator<<(T);
 };
 
 // Checks if T has a user-defined operator<< (e.g. not a member of
@@ -56,9 +60,9 @@ template <typename Char> struct test_stream : std::basic_ostream<Char> {
 template <typename T, typename Char> class is_streamable {
  private:
   template <typename U>
-  static decltype((void)(std::declval<test_stream<Char>&>()
-                         << std::declval<U>()),
-                  std::true_type())
+  static bool_constant<!std::is_same<decltype(std::declval<test_stream<Char>&>()
+                                              << std::declval<U>()),
+                                     void_t<>>::value>
   test(int);
 
   template <typename> static std::false_type test(...);
@@ -75,8 +79,7 @@ void write(std::basic_ostream<Char>& os, buffer<Char>& buf) {
   const Char* buf_data = buf.data();
   using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
   unsigned_streamsize size = buf.size();
-  unsigned_streamsize max_size =
-      to_unsigned((std::numeric_limits<std::streamsize>::max)());
+  unsigned_streamsize max_size = to_unsigned(max_value<std::streamsize>());
   do {
     unsigned_streamsize n = size <= max_size ? size : max_size;
     os.write(buf_data, static_cast<std::streamsize>(n));
@@ -86,9 +89,11 @@ void write(std::basic_ostream<Char>& os, buffer<Char>& buf) {
 }
 
 template <typename Char, typename T>
-void format_value(buffer<Char>& buf, const T& value) {
+void format_value(buffer<Char>& buf, const T& value,
+                  locale_ref loc = locale_ref()) {
   formatbuf<Char> format_buf(buf);
   std::basic_ostream<Char> output(&format_buf);
+  if (loc) output.imbue(loc.get<std::locale>());
   output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
   output << value;
   buf.resize(buf.size());
@@ -101,7 +106,7 @@ struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
   template <typename Context>
   auto format(const T& value, Context& ctx) -> decltype(ctx.out()) {
     basic_memory_buffer<Char> buffer;
-    format_value(buffer, value);
+    format_value(buffer, value, ctx.locale());
     basic_string_view<Char> str(buffer.data(), buffer.size());
     return formatter<basic_string_view<Char>, Char>::format(str, ctx);
   }

third_party/spdlog/include/spdlog/fmt/bundled/posix.h

@@ -13,11 +13,10 @@
 #  undef __STRICT_ANSI__
 #endif
 
-#include <errno.h>
-#include <fcntl.h>   // for O_RDONLY
-#include <locale.h>  // for locale_t
-#include <stdio.h>
-#include <stdlib.h>  // for strtod_l
+#include <cerrno>
+#include <clocale>  // for locale_t
+#include <cstdio>
+#include <cstdlib>  // for strtod_l
 
 #include <cstddef>
 
@@ -27,6 +26,18 @@
 
 #include "format.h"
 
+// UWP doesn't provide _pipe.
+#if FMT_HAS_INCLUDE("winapifamily.h")
+#  include <winapifamily.h>
+#endif
+#if FMT_HAS_INCLUDE("fcntl.h") && \
+    (!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
+#  include <fcntl.h>  // for O_RDONLY
+#  define FMT_USE_FCNTL 1
+#else
+#  define FMT_USE_FCNTL 0
+#endif
+
 #ifndef FMT_POSIX
 #  if defined(_WIN32) && !defined(__MINGW32__)
 // Fix warnings about deprecated symbols.
@@ -54,8 +65,8 @@
 #ifndef _WIN32
 #  define FMT_RETRY_VAL(result, expression, error_result) \
     do {                                                  \
-      result = (expression);                              \
-    } while (result == error_result && errno == EINTR)
+      (result) = (expression);                            \
+    } while ((result) == (error_result) && errno == EINTR)
 #else
 #  define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
 #endif
@@ -132,16 +143,15 @@ class buffered_file {
   explicit buffered_file(FILE* f) : file_(f) {}
 
  public:
+  buffered_file(const buffered_file&) = delete;
+  void operator=(const buffered_file&) = delete;
+
   // Constructs a buffered_file object which doesn't represent any file.
   buffered_file() FMT_NOEXCEPT : file_(nullptr) {}
 
   // Destroys the object closing the file it represents if any.
   FMT_API ~buffered_file() FMT_NOEXCEPT;
 
- private:
-  buffered_file(const buffered_file&) = delete;
-  void operator=(const buffered_file&) = delete;
-
  public:
   buffered_file(buffered_file&& other) FMT_NOEXCEPT : file_(other.file_) {
     other.file_ = nullptr;
@@ -177,6 +187,7 @@ class buffered_file {
   }
 };
 
+#if FMT_USE_FCNTL
 // A file. Closed file is represented by a file object with descriptor -1.
 // Methods that are not declared with FMT_NOEXCEPT may throw
 // fmt::system_error in case of failure. Note that some errors such as
@@ -204,14 +215,13 @@ class file {
   // Opens a file and constructs a file object representing this file.
   FMT_API file(cstring_view path, int oflag);
 
- private:
+ public:
   file(const file&) = delete;
   void operator=(const file&) = delete;
 
- public:
   file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; }
 
-  file& operator=(file&& other) {
+  file& operator=(file&& other) FMT_NOEXCEPT {
     close();
     fd_ = other.fd_;
     other.fd_ = -1;
@@ -260,6 +270,7 @@ class file {
 
 // Returns the memory page size.
 long getpagesize();
+#endif  // FMT_USE_FCNTL
 
 #ifdef FMT_LOCALE
 // A "C" numeric locale.
@@ -283,11 +294,10 @@ class Locale {
 
   locale_t locale_;
 
-  Locale(const Locale&) = delete;
-  void operator=(const Locale&) = delete;
-
  public:
   using type = locale_t;
+  Locale(const Locale&) = delete;
+  void operator=(const Locale&) = delete;
 
   Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", nullptr)) {
     if (!locale_) FMT_THROW(system_error(errno, "cannot create locale"));

third_party/spdlog/include/spdlog/fmt/bundled/printf.h

@@ -1,4 +1,4 @@
-// Formatting library for C++
+// Formatting library for C++ - legacy printf implementation
 //
 // Copyright (c) 2012 - 2016, Victor Zverovich
 // All rights reserved.
@@ -8,7 +8,7 @@
 #ifndef FMT_PRINTF_H_
 #define FMT_PRINTF_H_
 
-#include <algorithm>  // std::fill_n
+#include <algorithm>  // std::max
 #include <limits>     // std::numeric_limits
 
 #include "ostream.h"
@@ -16,15 +16,11 @@
 FMT_BEGIN_NAMESPACE
 namespace internal {
 
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-template <typename T> inline T const_check(T value) { return value; }
-
 // Checks if a value fits in int - used to avoid warnings about comparing
 // signed and unsigned integers.
 template <bool IsSigned> struct int_checker {
   template <typename T> static bool fits_in_int(T value) {
-    unsigned max = std::numeric_limits<int>::max();
+    unsigned max = max_value<int>();
     return value <= max;
   }
   static bool fits_in_int(bool) { return true; }
@@ -33,7 +29,7 @@ template <bool IsSigned> struct int_checker {
 template <> struct int_checker<true> {
   template <typename T> static bool fits_in_int(T value) {
     return value >= std::numeric_limits<int>::min() &&
-           value <= std::numeric_limits<int>::max();
+           value <= max_value<int>();
   }
   static bool fits_in_int(int) { return true; }
 };
@@ -158,12 +154,12 @@ template <typename Char> class printf_width_handler {
 
   template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
   unsigned operator()(T value) {
-    auto width = static_cast<uint32_or_64_t<T>>(value);
+    auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
     if (internal::is_negative(value)) {
       specs_.align = align::left;
       width = 0 - width;
     }
-    unsigned int_max = std::numeric_limits<int>::max();
+    unsigned int_max = max_value<int>();
     if (width > int_max) FMT_THROW(format_error("number is too big"));
     return static_cast<unsigned>(width);
   }
@@ -235,7 +231,7 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
   printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx)
       : base(Range(iter), &specs, internal::locale_ref()), context_(ctx) {}
 
-  template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+  template <typename T, FMT_ENABLE_IF(fmt::internal::is_integral<T>::value)>
   iterator operator()(T value) {
     // MSVC2013 fails to compile separate overloads for bool and char_type so
     // use std::is_same instead.
@@ -332,14 +328,14 @@ template <typename OutputIt, typename Char> class basic_printf_context {
 
   OutputIt out_;
   basic_format_args<basic_printf_context> args_;
-  basic_parse_context<Char> parse_ctx_;
+  basic_format_parse_context<Char> parse_ctx_;
 
   static void parse_flags(format_specs& specs, const Char*& it,
                           const Char* end);
 
   // Returns the argument with specified index or, if arg_index is equal
   // to the maximum unsigned value, the next argument.
-  format_arg get_arg(unsigned arg_index = std::numeric_limits<unsigned>::max());
+  format_arg get_arg(unsigned arg_index = internal::max_value<unsigned>());
 
   // Parses argument index, flags and width and returns the argument index.
   unsigned parse_header(const Char*& it, const Char* end, format_specs& specs);
@@ -361,15 +357,14 @@ template <typename OutputIt, typename Char> class basic_printf_context {
 
   format_arg arg(unsigned id) const { return args_.get(id); }
 
-  basic_parse_context<Char>& parse_context() { return parse_ctx_; }
+  basic_format_parse_context<Char>& parse_context() { return parse_ctx_; }
 
   FMT_CONSTEXPR void on_error(const char* message) {
     parse_ctx_.on_error(message);
   }
 
   /** Formats stored arguments and writes the output to the range. */
-  template <typename ArgFormatter =
-                printf_arg_formatter<internal::buffer_range<Char>>>
+  template <typename ArgFormatter = printf_arg_formatter<buffer_range<Char>>>
   OutputIt format();
 };
 
@@ -403,7 +398,7 @@ void basic_printf_context<OutputIt, Char>::parse_flags(format_specs& specs,
 template <typename OutputIt, typename Char>
 typename basic_printf_context<OutputIt, Char>::format_arg
 basic_printf_context<OutputIt, Char>::get_arg(unsigned arg_index) {
-  if (arg_index == std::numeric_limits<unsigned>::max())
+  if (arg_index == internal::max_value<unsigned>())
     arg_index = parse_ctx_.next_arg_id();
   else
     parse_ctx_.check_arg_id(--arg_index);
@@ -413,7 +408,7 @@ basic_printf_context<OutputIt, Char>::get_arg(unsigned arg_index) {
 template <typename OutputIt, typename Char>
 unsigned basic_printf_context<OutputIt, Char>::parse_header(
     const Char*& it, const Char* end, format_specs& specs) {
-  unsigned arg_index = std::numeric_limits<unsigned>::max();
+  unsigned arg_index = internal::max_value<unsigned>();
   char_type c = *it;
   if (c >= '0' && c <= '9') {
     // Parse an argument index (if followed by '$') or a width possibly
@@ -470,6 +465,7 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
 
     // Parse argument index, flags and width.
     unsigned arg_index = parse_header(it, end, specs);
+    if (arg_index == 0) on_error("argument index out of range");
 
     // Parse precision.
     if (it != end && *it == '.') {

third_party/spdlog/include/spdlog/fmt/bundled/ranges.h

@@ -246,7 +246,8 @@ template <typename T, typename Char> struct is_range {
   static FMT_CONSTEXPR_DECL const bool value =
       internal::is_range_<T>::value &&
       !internal::is_like_std_string<T>::value &&
-      !std::is_convertible<T, std::basic_string<Char>>::value;
+      !std::is_convertible<T, std::basic_string<Char>>::value &&
+      !std::is_constructible<internal::std_string_view<Char>, T>::value;
 };
 
 template <typename RangeT, typename Char>
@@ -283,6 +284,82 @@ struct formatter<RangeT, Char,
   }
 };
 
+template <typename Char, typename... T> struct tuple_arg_join : internal::view {
+  const std::tuple<T...>& tuple;
+  basic_string_view<Char> sep;
+
+  tuple_arg_join(const std::tuple<T...>& t, basic_string_view<Char> s)
+      : tuple{t}, sep{s} {}
+};
+
+template <typename Char, typename... T>
+struct formatter<tuple_arg_join<Char, T...>, Char> {
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+
+  template <typename FormatContext>
+  typename FormatContext::iterator format(
+      const tuple_arg_join<Char, T...>& value, FormatContext& ctx) {
+    return format(value, ctx, internal::make_index_sequence<sizeof...(T)>{});
+  }
+
+ private:
+  template <typename FormatContext, size_t... N>
+  typename FormatContext::iterator format(
+      const tuple_arg_join<Char, T...>& value, FormatContext& ctx,
+      internal::index_sequence<N...>) {
+    return format_args(value, ctx, std::get<N>(value.tuple)...);
+  }
+
+  template <typename FormatContext>
+  typename FormatContext::iterator format_args(
+      const tuple_arg_join<Char, T...>&, FormatContext& ctx) {
+    // NOTE: for compilers that support C++17, this empty function instantiation
+    // can be replaced with a constexpr branch in the variadic overload.
+    return ctx.out();
+  }
+
+  template <typename FormatContext, typename Arg, typename... Args>
+  typename FormatContext::iterator format_args(
+      const tuple_arg_join<Char, T...>& value, FormatContext& ctx,
+      const Arg& arg, const Args&... args) {
+    using base = formatter<typename std::decay<Arg>::type, Char>;
+    auto out = ctx.out();
+    out = base{}.format(arg, ctx);
+    if (sizeof...(Args) > 0) {
+      out = std::copy(value.sep.begin(), value.sep.end(), out);
+      ctx.advance_to(out);
+      return format_args(value, ctx, args...);
+    }
+    return out;
+  }
+};
+
+/**
+  \rst
+  Returns an object that formats `tuple` with elements separated by `sep`.
+
+  **Example**::
+
+    std::tuple<int, char> t = {1, 'a'};
+    fmt::print("{}", fmt::join(t, ", "));
+    // Output: "1, a"
+  \endrst
+ */
+template <typename... T>
+FMT_CONSTEXPR tuple_arg_join<char, T...> join(const std::tuple<T...>& tuple,
+                                              string_view sep) {
+  return {tuple, sep};
+}
+
+template <typename... T>
+FMT_CONSTEXPR tuple_arg_join<wchar_t, T...> join(const std::tuple<T...>& tuple,
+                                                 wstring_view sep) {
+  return {tuple, sep};
+}
+
 FMT_END_NAMESPACE
 
 #endif  // FMT_RANGES_H_

third_party/spdlog/include/spdlog/fmt/bundled/safe-duration-cast.h

@@ -1,293 +0,0 @@
-/*
- * For conversion between std::chrono::durations without undefined
- * behaviour or erroneous results.
- * This is a stripped down version of duration_cast, for inclusion in fmt.
- * See https://github.com/pauldreik/safe_duration_cast
- *
- * Copyright Paul Dreik 2019
- *
- * This file is licensed under the fmt license, see format.h
- */
-
-#include <chrono>
-#include <cmath>
-#include <limits>
-#include <type_traits>
-
-#include "format.h"
-
-FMT_BEGIN_NAMESPACE
-
-namespace safe_duration_cast {
-
-template <typename To, typename From,
-          FMT_ENABLE_IF(!std::is_same<From, To>::value &&
-                        std::numeric_limits<From>::is_signed ==
-                            std::numeric_limits<To>::is_signed)>
-FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
-  ec = 0;
-  using F = std::numeric_limits<From>;
-  using T = std::numeric_limits<To>;
-  static_assert(F::is_integer, "From must be integral");
-  static_assert(T::is_integer, "To must be integral");
-
-  // A and B are both signed, or both unsigned.
-  if (F::digits <= T::digits) {
-    // From fits in To without any problem.
-  } else {
-    // From does not always fit in To, resort to a dynamic check.
-    if (from < T::min() || from > T::max()) {
-      // outside range.
-      ec = 1;
-      return {};
-    }
-  }
-  return static_cast<To>(from);
-}
-
-/**
- * converts From to To, without loss. If the dynamic value of from
- * can't be converted to To without loss, ec is set.
- */
-template <typename To, typename From,
-          FMT_ENABLE_IF(!std::is_same<From, To>::value &&
-                        std::numeric_limits<From>::is_signed !=
-                            std::numeric_limits<To>::is_signed)>
-FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
-  ec = 0;
-  using F = std::numeric_limits<From>;
-  using T = std::numeric_limits<To>;
-  static_assert(F::is_integer, "From must be integral");
-  static_assert(T::is_integer, "To must be integral");
-
-  if (F::is_signed && !T::is_signed) {
-    // From may be negative, not allowed!
-    if (from < 0) {
-      ec = 1;
-      return {};
-    }
-
-    // From is positive. Can it always fit in To?
-    if (F::digits <= T::digits) {
-      // yes, From always fits in To.
-    } else {
-      // from may not fit in To, we have to do a dynamic check
-      if (from > static_cast<From>(T::max())) {
-        ec = 1;
-        return {};
-      }
-    }
-  }
-
-  if (!F::is_signed && T::is_signed) {
-    // can from be held in To?
-    if (F::digits < T::digits) {
-      // yes, From always fits in To.
-    } else {
-      // from may not fit in To, we have to do a dynamic check
-      if (from > static_cast<From>(T::max())) {
-        // outside range.
-        ec = 1;
-        return {};
-      }
-    }
-  }
-
-  // reaching here means all is ok for lossless conversion.
-  return static_cast<To>(from);
-
-}  // function
-
-template <typename To, typename From,
-          FMT_ENABLE_IF(std::is_same<From, To>::value)>
-FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
-  ec = 0;
-  return from;
-}  // function
-
-// clang-format off
-/**
- * converts From to To if possible, otherwise ec is set.
- *
- * input                            |    output
- * ---------------------------------|---------------
- * NaN                              | NaN
- * Inf                              | Inf
- * normal, fits in output           | converted (possibly lossy)
- * normal, does not fit in output   | ec is set
- * subnormal                        | best effort
- * -Inf                             | -Inf
- */
-// clang-format on
-template <typename To, typename From,
-          FMT_ENABLE_IF(!std::is_same<From, To>::value)>
-FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) {
-  ec = 0;
-  using T = std::numeric_limits<To>;
-  static_assert(std::is_floating_point<From>::value, "From must be floating");
-  static_assert(std::is_floating_point<To>::value, "To must be floating");
-
-  // catch the only happy case
-  if (std::isfinite(from)) {
-    if (from >= T::lowest() && from <= T::max()) {
-      return static_cast<To>(from);
-    }
-    // not within range.
-    ec = 1;
-    return {};
-  }
-
-  // nan and inf will be preserved
-  return static_cast<To>(from);
-}  // function
-
-template <typename To, typename From,
-          FMT_ENABLE_IF(std::is_same<From, To>::value)>
-FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) {
-  ec = 0;
-  static_assert(std::is_floating_point<From>::value, "From must be floating");
-  return from;
-}
-
-/**
- * safe duration cast between integral durations
- */
-template <typename To, typename FromRep, typename FromPeriod,
-          FMT_ENABLE_IF(std::is_integral<FromRep>::value),
-          FMT_ENABLE_IF(std::is_integral<typename To::rep>::value)>
-To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
-                      int& ec) {
-  using From = std::chrono::duration<FromRep, FromPeriod>;
-  ec = 0;
-  // the basic idea is that we need to convert from count() in the from type
-  // to count() in the To type, by multiplying it with this:
-  using Factor = std::ratio_divide<typename From::period, typename To::period>;
-
-  static_assert(Factor::num > 0, "num must be positive");
-  static_assert(Factor::den > 0, "den must be positive");
-
-  // the conversion is like this: multiply from.count() with Factor::num
-  // /Factor::den and convert it to To::rep, all this without
-  // overflow/underflow. let's start by finding a suitable type that can hold
-  // both To, From and Factor::num
-  using IntermediateRep =
-      typename std::common_type<typename From::rep, typename To::rep,
-                                decltype(Factor::num)>::type;
-
-  // safe conversion to IntermediateRep
-  IntermediateRep count =
-      lossless_integral_conversion<IntermediateRep>(from.count(), ec);
-  if (ec) {
-    return {};
-  }
-  // multiply with Factor::num without overflow or underflow
-  if (Factor::num != 1) {
-    constexpr auto max1 =
-        std::numeric_limits<IntermediateRep>::max() / Factor::num;
-    if (count > max1) {
-      ec = 1;
-      return {};
-    }
-    constexpr auto min1 =
-        std::numeric_limits<IntermediateRep>::min() / Factor::num;
-    if (count < min1) {
-      ec = 1;
-      return {};
-    }
-    count *= Factor::num;
-  }
-
-  // this can't go wrong, right? den>0 is checked earlier.
-  if (Factor::den != 1) {
-    count /= Factor::den;
-  }
-  // convert to the to type, safely
-  using ToRep = typename To::rep;
-  const ToRep tocount = lossless_integral_conversion<ToRep>(count, ec);
-  if (ec) {
-    return {};
-  }
-  return To{tocount};
-}
-
-/**
- * safe duration_cast between floating point durations
- */
-template <typename To, typename FromRep, typename FromPeriod,
-          FMT_ENABLE_IF(std::is_floating_point<FromRep>::value),
-          FMT_ENABLE_IF(std::is_floating_point<typename To::rep>::value)>
-To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
-                      int& ec) {
-  using From = std::chrono::duration<FromRep, FromPeriod>;
-  ec = 0;
-  if (std::isnan(from.count())) {
-    // nan in, gives nan out. easy.
-    return To{std::numeric_limits<typename To::rep>::quiet_NaN()};
-  }
-  // maybe we should also check if from is denormal, and decide what to do about
-  // it.
-
-  // +-inf should be preserved.
-  if (std::isinf(from.count())) {
-    return To{from.count()};
-  }
-
-  // the basic idea is that we need to convert from count() in the from type
-  // to count() in the To type, by multiplying it with this:
-  using Factor = std::ratio_divide<typename From::period, typename To::period>;
-
-  static_assert(Factor::num > 0, "num must be positive");
-  static_assert(Factor::den > 0, "den must be positive");
-
-  // the conversion is like this: multiply from.count() with Factor::num
-  // /Factor::den and convert it to To::rep, all this without
-  // overflow/underflow. let's start by finding a suitable type that can hold
-  // both To, From and Factor::num
-  using IntermediateRep =
-      typename std::common_type<typename From::rep, typename To::rep,
-                                decltype(Factor::num)>::type;
-
-  // force conversion of From::rep -> IntermediateRep to be safe,
-  // even if it will never happen be narrowing in this context.
-  IntermediateRep count =
-      safe_float_conversion<IntermediateRep>(from.count(), ec);
-  if (ec) {
-    return {};
-  }
-
-  // multiply with Factor::num without overflow or underflow
-  if (Factor::num != 1) {
-    constexpr auto max1 = std::numeric_limits<IntermediateRep>::max() /
-                          static_cast<IntermediateRep>(Factor::num);
-    if (count > max1) {
-      ec = 1;
-      return {};
-    }
-    constexpr auto min1 = std::numeric_limits<IntermediateRep>::lowest() /
-                          static_cast<IntermediateRep>(Factor::num);
-    if (count < min1) {
-      ec = 1;
-      return {};
-    }
-    count *= static_cast<IntermediateRep>(Factor::num);
-  }
-
-  // this can't go wrong, right? den>0 is checked earlier.
-  if (Factor::den != 1) {
-    using common_t = typename std::common_type<IntermediateRep, intmax_t>::type;
-    count /= static_cast<common_t>(Factor::den);
-  }
-
-  // convert to the to type, safely
-  using ToRep = typename To::rep;
-
-  const ToRep tocount = safe_float_conversion<ToRep>(count, ec);
-  if (ec) {
-    return {};
-  }
-  return To{tocount};
-}
-
-}  // namespace safe_duration_cast
-
-FMT_END_NAMESPACE

third_party/spdlog/include/spdlog/fmt/fmt.h

@@ -10,6 +10,13 @@
 // By default spdlog include its own copy.
 //
 
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif // __GNUC__ || __clang__
+
+
 #if !defined(SPDLOG_FMT_EXTERNAL)
 #ifdef SPDLOG_HEADER_ONLY
 #ifndef FMT_HEADER_ONLY
@@ -22,6 +29,11 @@
 #include "bundled/core.h"
 #include "bundled/format.h"
 #else // SPDLOG_FMT_EXTERNAL is defined - use external fmtlib
-#include "fmt/core.h"
-#include "fmt/format.h"
+#include <fmt/core.h>
+#include <fmt/format.h>
+#endif
+
+// pop warnings supressions
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic pop
 #endif

third_party/spdlog/include/spdlog/formatter.h

@@ -3,8 +3,8 @@
 
 #pragma once
 
-#include "fmt/fmt.h"
-#include "spdlog/details/log_msg.h"
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/details/log_msg.h>
 
 namespace spdlog {
 

third_party/spdlog/include/spdlog/logger-inl.h

@@ -4,12 +4,12 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/logger.h"
+#include <spdlog/logger.h>
 #endif
 
-#include "spdlog/sinks/sink.h"
-#include "spdlog/details/backtracer.h"
-#include "spdlog/details/pattern_formatter.h"
+#include <spdlog/sinks/sink.h>
+#include <spdlog/details/backtracer.h>
+#include <spdlog/details/pattern_formatter.h>
 
 #include <cstdio>
 
@@ -64,11 +64,6 @@ SPDLOG_INLINE void swap(logger &a, logger &b)
     a.swap(b);
 }
 
-SPDLOG_INLINE bool logger::should_log(level::level_enum msg_level) const
-{
-    return msg_level >= level_.load(std::memory_order_relaxed);
-}
-
 SPDLOG_INLINE void logger::set_level(level::level_enum log_level)
 {
     level_.store(log_level);
@@ -85,7 +80,7 @@ SPDLOG_INLINE const std::string &logger::name() const
 }
 
 // set formatting for the sinks in this logger.
-// each sink will get a seperate instance of the formatter object.
+// each sink will get a separate instance of the formatter object.
 SPDLOG_INLINE void logger::set_formatter(std::unique_ptr<formatter> f)
 {
     for (auto it = sinks_.begin(); it != sinks_.end(); ++it)
@@ -155,7 +150,7 @@ SPDLOG_INLINE std::vector<sink_ptr> &logger::sinks()
 // error handler
 SPDLOG_INLINE void logger::set_error_handler(err_handler handler)
 {
-    custom_err_handler_ = handler;
+    custom_err_handler_ = std::move(handler);
 }
 
 // create new logger with same sinks and configuration.
@@ -167,6 +162,18 @@ SPDLOG_INLINE std::shared_ptr<logger> logger::clone(std::string logger_name)
 }
 
 // protected methods
+SPDLOG_INLINE void logger::log_it_(const spdlog::details::log_msg &log_msg, bool log_enabled, bool traceback_enabled)
+{
+    if (log_enabled)
+    {
+        sink_it_(log_msg);
+    }
+    if (traceback_enabled)
+    {
+        tracer_.push_back(log_msg);
+    }
+}
+
 SPDLOG_INLINE void logger::sink_it_(const details::log_msg &msg)
 {
     for (auto &sink : sinks_)
@@ -202,10 +209,10 @@ SPDLOG_INLINE void logger::flush_()
 SPDLOG_INLINE void logger::dump_backtrace_()
 {
     using details::log_msg;
-    if (tracer_)
+    if (tracer_.enabled())
     {
         sink_it_(log_msg{name(), level::info, "****************** Backtrace Start ******************"});
-        tracer_.foreach_pop([this](const details::log_msg &msg) { this->sink_it_(msg); });
+        tracer_.foreach_pop([this](const log_msg &msg) { this->sink_it_(msg); });
         sink_it_(log_msg{name(), level::info, "****************** Backtrace End ********************"});
     }
 }
@@ -218,7 +225,6 @@ SPDLOG_INLINE bool logger::should_flush_(const details::log_msg &msg)
 
 SPDLOG_INLINE void logger::err_handler_(const std::string &msg)
 {
-
     if (custom_err_handler_)
     {
         custom_err_handler_(msg);

third_party/spdlog/include/spdlog/logger.h

@@ -3,8 +3,7 @@
 
 #pragma once
 
-// Thread safe logger (except for set_pattern(..), set_formatter(..) and
-// set_error_handler())
+// Thread safe logger (except for set_error_handler())
 // Has name, log level, vector of std::shared sink pointers and formatter
 // Upon each log write the logger:
 // 1. Checks if its log level is enough to log the message and if yes:
@@ -15,12 +14,12 @@
 // The use of private formatter per sink provides the opportunity to cache some
 // formatted data, and support for different format per sink.
 
-#include "spdlog/common.h"
-#include "spdlog/details/log_msg.h"
-#include "spdlog/details/backtracer.h"
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/backtracer.h>
 
 #ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
-#include "spdlog/details/os.h"
+#include <spdlog/details/os.h>
 #endif
 
 #include <vector>
@@ -77,8 +76,9 @@ public:
     template<typename... Args>
     void log(source_loc loc, level::level_enum lvl, string_view_t fmt, const Args &... args)
     {
-        auto level_enabled = should_log(lvl);
-        if (!level_enabled && !tracer_)
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
         {
             return;
         }
@@ -87,14 +87,7 @@ public:
             memory_buf_t buf;
             fmt::format_to(buf, fmt, args...);
             details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
-            if (level_enabled)
-            {
-                sink_it_(log_msg);
-            }
-            if (tracer_)
-            {
-                tracer_.push_back(log_msg);
-            }
+            log_it_(log_msg, log_enabled, traceback_enabled);
         }
         SPDLOG_LOGGER_CATCH()
     }
@@ -151,24 +144,15 @@ public:
     template<class T, typename std::enable_if<std::is_convertible<const T &, spdlog::string_view_t>::value, T>::type * = nullptr>
     void log(source_loc loc, level::level_enum lvl, const T &msg)
     {
-        auto level_enabled = should_log(lvl);
-        if (!level_enabled && !tracer_)
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
         {
             return;
         }
-        SPDLOG_TRY
-        {
-            details::log_msg log_msg(loc, name_, lvl, msg);
-            if (level_enabled)
-            {
-                sink_it_(log_msg);
-            }
-            if (tracer_)
-            {
-                tracer_.push_back(log_msg);
-            }
-        }
-        SPDLOG_LOGGER_CATCH()
+
+        details::log_msg log_msg(loc, name_, lvl, msg);
+        log_it_(log_msg, log_enabled, traceback_enabled);
     }
 
     void log(level::level_enum lvl, string_view_t msg)
@@ -229,8 +213,9 @@ public:
     template<typename... Args>
     void log(source_loc loc, level::level_enum lvl, wstring_view_t fmt, const Args &... args)
     {
-        auto level_enabled = should_log(lvl);
-        if (!level_enabled && !tracer_)
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
         {
             return;
         }
@@ -243,15 +228,7 @@ public:
             memory_buf_t buf;
             details::os::wstr_to_utf8buf(wstring_view_t(wbuf.data(), wbuf.size()), buf);
             details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
-
-            if (level_enabled)
-            {
-                sink_it_(log_msg);
-            }
-            if (tracer_)
-            {
-                tracer_.push_back(log_msg);
-            }
+            log_it_(log_msg, log_enabled, traceback_enabled);
         }
         SPDLOG_LOGGER_CATCH()
     }
@@ -302,25 +279,36 @@ public:
     template<class T, typename std::enable_if<is_convertible_to_wstring_view<const T &>::value, T>::type * = nullptr>
     void log(source_loc loc, level::level_enum lvl, const T &msg)
     {
-        if (!should_log(lvl))
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
         {
             return;
         }
 
-        try
+        SPDLOG_TRY
         {
             memory_buf_t buf;
             details::os::wstr_to_utf8buf(msg, buf);
-
             details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
-            sink_it_(log_msg);
+            log_it_(log_msg, log_enabled, traceback_enabled);
         }
         SPDLOG_LOGGER_CATCH()
     }
 #endif // _WIN32
 #endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
 
-    bool should_log(level::level_enum msg_level) const;
+    // return true logging is enabled for the given level.
+    bool should_log(level::level_enum msg_level) const
+    {
+        return msg_level >= level_.load(std::memory_order_relaxed);
+    }
+
+    // return true if backtrace logging is enabled.
+    bool should_backtrace() const
+    {
+        return tracer_.enabled();
+    }
 
     void set_level(level::level_enum log_level);
 
@@ -329,7 +317,7 @@ public:
     const std::string &name() const;
 
     // set formatting for the sinks in this logger.
-    // each sink will get a seperate instance of the formatter object.
+    // each sink will get a separate instance of the formatter object.
     void set_formatter(std::unique_ptr<formatter> f);
 
     void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local);
@@ -364,6 +352,9 @@ protected:
     err_handler custom_err_handler_{nullptr};
     details::backtracer tracer_;
 
+    // log the given message (if the given log level is high enough),
+    // and save backtrace (if backtrace is enabled).
+    void log_it_(const details::log_msg &log_msg, bool log_enabled, bool traceback_enabled);
     virtual void sink_it_(const details::log_msg &msg);
     virtual void flush_();
     void dump_backtrace_();

third_party/spdlog/include/spdlog/sinks/android_sink.h

@@ -5,11 +5,11 @@
 
 #ifdef __ANDROID__
 
-#include "spdlog/details/fmt_helper.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/details/os.h"
-#include "spdlog/sinks/base_sink.h"
-#include "spdlog/details/synchronous_factory.h"
+#include <spdlog/details/fmt_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/details/os.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/synchronous_factory.h>
 
 #include <android/log.h>
 #include <chrono>

third_party/spdlog/include/spdlog/sinks/ansicolor_sink-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/ansicolor_sink.h"
+#include <spdlog/sinks/ansicolor_sink.h>
 #endif
 
-#include "spdlog/details/pattern_formatter.h"
-#include "spdlog/details/os.h"
+#include <spdlog/details/pattern_formatter.h>
+#include <spdlog/details/os.h>
 
 namespace spdlog {
 namespace sinks {

third_party/spdlog/include/spdlog/sinks/ansicolor_sink.h

@@ -3,9 +3,9 @@
 
 #pragma once
 
-#include "spdlog/details/console_globals.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/sinks/sink.h"
+#include <spdlog/details/console_globals.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/sink.h>
 #include <memory>
 #include <mutex>
 #include <string>

third_party/spdlog/include/spdlog/sinks/base_sink-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/base_sink.h"
+#include <spdlog/sinks/base_sink.h>
 #endif
 
-#include "spdlog/common.h"
-#include "spdlog/details/pattern_formatter.h"
+#include <spdlog/common.h>
+#include <spdlog/details/pattern_formatter.h>
 
 #include <memory>
 

third_party/spdlog/include/spdlog/sinks/base_sink.h

@@ -9,9 +9,9 @@
 // implementers..
 //
 
-#include "spdlog/common.h"
-#include "spdlog/details/log_msg.h"
-#include "spdlog/sinks/sink.h"
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/sinks/sink.h>
 
 namespace spdlog {
 namespace sinks {

third_party/spdlog/include/spdlog/sinks/basic_file_sink-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/basic_file_sink.h"
+#include <spdlog/sinks/basic_file_sink.h>
 #endif
 
-#include "spdlog/common.h"
-#include "spdlog/details/os.h"
+#include <spdlog/common.h>
+#include <spdlog/details/os.h>
 
 namespace spdlog {
 namespace sinks {

third_party/spdlog/include/spdlog/sinks/basic_file_sink.h

@@ -3,10 +3,10 @@
 
 #pragma once
 
-#include "spdlog/details/file_helper.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/sinks/base_sink.h"
-#include "spdlog/details/synchronous_factory.h"
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/synchronous_factory.h>
 
 #include <mutex>
 #include <string>

third_party/spdlog/include/spdlog/sinks/daily_file_sink.h

@@ -3,13 +3,14 @@
 
 #pragma once
 
-#include "spdlog/common.h"
-#include "spdlog/details/file_helper.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/fmt/fmt.h"
-#include "spdlog/sinks/base_sink.h"
-#include "spdlog/details/os.h"
-#include "spdlog/details/synchronous_factory.h"
+#include <spdlog/common.h>
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/os.h>
+#include <spdlog/details/circular_q.h>
+#include <spdlog/details/synchronous_factory.h>
 
 #include <chrono>
 #include <cstdio>
@@ -78,12 +79,7 @@ public:
 protected:
     void sink_it_(const details::log_msg &msg) override
     {
-#ifdef SPDLOG_NO_DATETIME
-        auto time = log_clock::now();
-#else
         auto time = msg.time;
-#endif
-
         bool should_rotate = time >= rotation_tp_;
         if (should_rotate)
         {
@@ -95,7 +91,7 @@ protected:
         base_sink<Mutex>::formatter_->format(msg, formatted);
         file_helper_.write(formatted);
 
-        // Do the cleaning ony at the end because it might throw on failure.
+        // Do the cleaning only at the end because it might throw on failure.
         if (should_rotate && max_files_ > 0)
         {
             delete_old_();

third_party/spdlog/include/spdlog/sinks/dist_sink.h

@@ -4,9 +4,9 @@
 #pragma once
 
 #include "base_sink.h"
-#include "spdlog/details/log_msg.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/details/pattern_formatter.h"
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/details/pattern_formatter.h>
 
 #include <algorithm>
 #include <memory>
@@ -24,6 +24,10 @@ class dist_sink : public base_sink<Mutex>
 {
 public:
     dist_sink() = default;
+    explicit dist_sink(std::vector<std::shared_ptr<sink>> sinks)
+        : sinks_(sinks)
+    {}
+
     dist_sink(const dist_sink &) = delete;
     dist_sink &operator=(const dist_sink &) = delete;
 

third_party/spdlog/include/spdlog/sinks/dup_filter_sink.h

@@ -4,8 +4,8 @@
 #pragma once
 
 #include "dist_sink.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/details/log_msg.h"
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/details/log_msg.h>
 
 #include <mutex>
 #include <string>
@@ -16,7 +16,7 @@
 //
 // Example:
 //
-//     #include "spdlog/sinks/dup_filter_sink.h"
+//     #include <spdlog/sinks/dup_filter_sink.h>
 //
 //     int main() {
 //         auto dup_filter = std::make_shared<dup_filter_sink_st>(std::chrono::seconds(5));
@@ -33,10 +33,6 @@
 //       [2019-06-25 17:50:56.512] [logger] [info] Skipped 3 duplicate messages..
 //       [2019-06-25 17:50:56.512] [logger] [info] Different Hello
 
-#ifdef SPDLOG_NO_DATETIME
-#error "spdlog::sinks::dup_filter_sink: cannot work when SPDLOG_NO_DATETIME is defined"
-#endif
-
 namespace spdlog {
 namespace sinks {
 template<typename Mutex>

third_party/spdlog/include/spdlog/sinks/msvc_sink.h

@@ -5,8 +5,8 @@
 
 #if defined(_WIN32)
 
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/sinks/base_sink.h"
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
 
 #include <winbase.h>
 

third_party/spdlog/include/spdlog/sinks/null_sink.h

@@ -3,9 +3,9 @@
 
 #pragma once
 
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/sinks/base_sink.h"
-#include "spdlog/details/synchronous_factory.h"
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/synchronous_factory.h>
 
 #include <mutex>
 

third_party/spdlog/include/spdlog/sinks/ostream_sink.h

@@ -3,8 +3,8 @@
 
 #pragma once
 
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/sinks/base_sink.h"
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
 
 #include <mutex>
 #include <ostream>

third_party/spdlog/include/spdlog/sinks/ringbuffer_sink.h

@@ -0,0 +1,72 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/details/circular_q.h"
+#include "spdlog/details/log_msg_buffer.h"
+#include "spdlog/details/null_mutex.h"
+
+#include <mutex>
+#include <string>
+#include <vector>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Ring buffer sink
+ */
+template<typename Mutex>
+class ringbuffer_sink final : public base_sink<Mutex>
+{
+public:
+    explicit ringbuffer_sink(size_t n_items)
+        : q_{n_items}
+    {}
+
+    std::vector<details::log_msg_buffer> last_raw(size_t lim = 0)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        auto n_items = lim > 0 ? (std::min)(lim, q_.size()) : q_.size();
+        std::vector<details::log_msg_buffer> ret;
+        ret.reserve(n_items);
+        for (size_t i = 0; i < n_items; i++)
+        {
+            ret.push_back(q_.at(i));
+        }
+        return ret;
+    }
+
+    std::vector<std::string> last_formatted(size_t lim = 0)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        auto n_items = lim > 0 ? (std::min)(lim, q_.size()) : q_.size();
+        std::vector<std::string> ret;
+        ret.reserve(n_items);
+        for (size_t i = 0; i < n_items; i++)
+        {
+            memory_buf_t formatted;
+            base_sink<Mutex>::formatter_->format(q_.at(i), formatted);
+            ret.push_back(fmt::to_string(formatted));
+        }
+        return ret;
+    }
+
+protected:
+    void sink_it_(const details::log_msg &msg) override
+    {
+        q_.push_back(details::log_msg_buffer{msg});
+    }
+    void flush_() override {}
+
+private:
+    details::circular_q<details::log_msg_buffer> q_;
+};
+
+using ringbuffer_sink_mt = ringbuffer_sink<std::mutex>;
+using ringbuffer_sink_st = ringbuffer_sink<details::null_mutex>;
+
+} // namespace sinks
+
+} // namespace spdlog

third_party/spdlog/include/spdlog/sinks/rotating_file_sink-inl.h

@@ -4,14 +4,14 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/rotating_file_sink.h"
+#include <spdlog/sinks/rotating_file_sink.h>
 #endif
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 
-#include "spdlog/details/file_helper.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/fmt/fmt.h"
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/fmt/fmt.h>
 
 #include <cerrno>
 #include <chrono>
@@ -88,11 +88,12 @@ template<typename Mutex>
 SPDLOG_INLINE void rotating_file_sink<Mutex>::rotate_()
 {
     using details::os::filename_to_str;
+    using details::os::path_exists;
     file_helper_.close();
     for (auto i = max_files_; i > 0; --i)
     {
         filename_t src = calc_filename(base_filename_, i - 1);
-        if (!details::file_helper::file_exists(src))
+        if (!path_exists(src))
         {
             continue;
         }

third_party/spdlog/include/spdlog/sinks/rotating_file_sink.h

@@ -3,10 +3,10 @@
 
 #pragma once
 
-#include "spdlog/sinks/base_sink.h"
-#include "spdlog/details/file_helper.h"
-#include "spdlog/details/null_mutex.h"
-#include "spdlog/details/synchronous_factory.h"
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/details/synchronous_factory.h>
 
 #include <chrono>
 #include <mutex>

third_party/spdlog/include/spdlog/sinks/sink-inl.h

@@ -4,10 +4,10 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/sink.h"
+#include <spdlog/sinks/sink.h>
 #endif
 
-#include "spdlog/common.h"
+#include <spdlog/common.h>
 
 SPDLOG_INLINE bool spdlog::sinks::sink::should_log(spdlog::level::level_enum msg_level) const
 {

third_party/spdlog/include/spdlog/sinks/sink.h

@@ -3,8 +3,8 @@
 
 #pragma once
 
-#include "spdlog/details/log_msg.h"
-#include "spdlog/formatter.h"
+#include <spdlog/details/log_msg.h>
+#include <spdlog/formatter.h>
 
 namespace spdlog {
 

third_party/spdlog/include/spdlog/sinks/stdout_color_sinks-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/stdout_color_sinks.h"
+#include <spdlog/sinks/stdout_color_sinks.h>
 #endif
 
-#include "spdlog/logger.h"
-#include "spdlog/common.h"
+#include <spdlog/logger.h>
+#include <spdlog/common.h>
 
 namespace spdlog {
 

third_party/spdlog/include/spdlog/sinks/stdout_color_sinks.h

@@ -4,12 +4,12 @@
 #pragma once
 
 #ifdef _WIN32
-#include "spdlog/sinks/wincolor_sink.h"
+#include <spdlog/sinks/wincolor_sink.h>
 #else
-#include "spdlog/sinks/ansicolor_sink.h"
+#include <spdlog/sinks/ansicolor_sink.h>
 #endif
 
-#include "spdlog/details/synchronous_factory.h"
+#include <spdlog/details/synchronous_factory.h>
 
 namespace spdlog {
 namespace sinks {

third_party/spdlog/include/spdlog/sinks/stdout_sinks-inl.h

@@ -4,11 +4,11 @@
 #pragma once
 
 #ifndef SPDLOG_HEADER_ONLY
-#include "spdlog/sinks/stdout_sinks.h"
+#include <spdlog/sinks/stdout_sinks.h>
 #endif
 
-#include "spdlog/details/console_globals.h"
-#include "spdlog/details/pattern_formatter.h"
+#include <spdlog/details/console_globals.h>
+#include <spdlog/details/pattern_formatter.h>
 #include <memory>
 
 namespace spdlog {