Merge pull request #7 from bsergean/user/bsergeant/appveyor_first

unittest on appveyor
This commit is contained in:
Benjamin Sergeant 2019-01-04 17:29:23 -08:00 committed by GitHub
commit 273af25d57
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
39 changed files with 5425 additions and 246 deletions

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@ -10,7 +10,9 @@ set (CMAKE_CXX_STANDARD 11)
set (CXX_STANDARD_REQUIRED ON)
set (CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wshorten-64-to-32")
if (NOT WIN32)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
endif()
set( IXWEBSOCKET_SOURCES
ixwebsocket/IXEventFd.cpp
@ -23,6 +25,7 @@ set( IXWEBSOCKET_SOURCES
ixwebsocket/IXWebSocketTransport.cpp
ixwebsocket/IXWebSocketHandshake.cpp
ixwebsocket/IXWebSocketPerMessageDeflate.cpp
ixwebsocket/IXWebSocketPerMessageDeflateCodec.cpp
ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp
)
@ -40,6 +43,7 @@ set( IXWEBSOCKET_HEADERS
ixwebsocket/IXWebSocketSendInfo.h
ixwebsocket/IXWebSocketErrorInfo.h
ixwebsocket/IXWebSocketPerMessageDeflate.h
ixwebsocket/IXWebSocketPerMessageDeflateCodec.h
ixwebsocket/IXWebSocketPerMessageDeflateOptions.h
ixwebsocket/IXWebSocketHttpHeaders.h
)
@ -47,6 +51,8 @@ set( IXWEBSOCKET_HEADERS
# Platform specific code
if (APPLE)
list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/apple/IXSetThreadName_apple.cpp)
elseif (WIN32)
list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/windows/IXSetThreadName_windows.cpp)
else()
list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/linux/IXSetThreadName_linux.cpp)
endif()
@ -72,7 +78,33 @@ add_library( ixwebsocket STATIC
${IXWEBSOCKET_HEADERS}
)
target_link_libraries(ixwebsocket "z")
# gcc/Linux needs -pthread
find_package(Threads)
if(UNIX AND NOT APPLE)
find_package(OpenSSL REQUIRED)
add_definitions(${OPENSSL_DEFINITIONS})
message(STATUS "OpenSSL: " ${OPENSSL_VERSION})
include_directories(${OPENSSL_INCLUDE_DIR})
endif()
if (WIN32)
get_filename_component(libz_path
${PROJECT_SOURCE_DIR}/third_party/ZLIB-Windows/zlib-1.2.11_deploy_v140/release_dynamic/x64/lib/zlib.lib
ABSOLUTE)
add_library(libz STATIC IMPORTED)
set_target_properties(libz PROPERTIES IMPORTED_LOCATION
${libz_path})
include_directories(${PROJECT_SOURCE_DIR}/third_party/ZLIB-Windows/zlib-1.2.11_deploy_v140/include)
target_link_libraries(ixwebsocket libz wsock32 ws2_32)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
else()
target_link_libraries(ixwebsocket
z ${OPENSSL_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
endif()
set( IXWEBSOCKET_INCLUDE_DIRS
.

10
appveyor.yml Normal file
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@ -0,0 +1,10 @@
image:
- Visual Studio 2017
- Ubuntu
install:
- ls -al
- cmd: call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"
- python test/run.py
build: off

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@ -6,9 +6,18 @@
#include "IXDNSLookup.h"
#ifdef _WIN32
# include <basetsd.h>
# include <WinSock2.h>
# include <ws2def.h>
# include <WS2tcpip.h>
# include <io.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#endif
#include <string.h>
#include <chrono>

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@ -125,7 +125,7 @@ namespace ix
return (int) ::recv(_sockfd, (char*) buffer, length, flags);
}
int Socket::getErrno() const
int Socket::getErrno()
{
#ifdef _WIN32
return WSAGetLastError();

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@ -47,7 +47,7 @@ namespace ix
const CancellationRequest& isCancellationRequested);
std::pair<bool, std::string> readLine(const CancellationRequest& isCancellationRequested);
int getErrno() const;
static int getErrno();
static bool init(); // Required on Windows to initialize WinSocket
static void cleanup(); // Required on Windows to cleanup WinSocket

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@ -104,7 +104,11 @@ namespace ix
if (!FD_ISSET(fd, &wfds)) continue;
// Something was written to the socket
#ifdef _WIN32
char optval = -1;
#else
int optval = -1;
#endif
socklen_t optlen = sizeof(optval);
// getsockopt() puts the errno value for connect into optval so 0
@ -173,7 +177,7 @@ namespace ix
// 2. make socket non blocking
#ifdef _WIN32
unsigned long nonblocking = 1;
ioctlsocket(_sockfd, FIONBIO, &nonblocking);
ioctlsocket(sockfd, FIONBIO, &nonblocking);
#else
fcntl(sockfd, F_SETFL, O_NONBLOCK); // make socket non blocking
#endif

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@ -44,8 +44,8 @@ namespace ix
std::string& errMsg);
bool checkHost(const std::string& host, const char *pattern);
SSL_CTX* _ssl_context;
SSL* _ssl_connection;
SSL_CTX* _ssl_context;
const SSL_METHOD* _ssl_method;
mutable std::mutex _mutex; // OpenSSL routines are not thread-safe
};

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@ -47,201 +47,10 @@
#include "IXWebSocketPerMessageDeflate.h"
#include "IXWebSocketPerMessageDeflateOptions.h"
#include <iostream>
#include <cassert>
#include <string.h>
namespace
{
// The passed in size (4) is important, without it the string litteral
// is treated as a char* and the null termination (\x00) makes it
// look like an empty string.
const std::string kEmptyUncompressedBlock = std::string("\x00\x00\xff\xff", 4);
const int kBufferSize = 1 << 14;
}
#include "IXWebSocketPerMessageDeflateCodec.h"
namespace ix
{
//
// Compressor
//
WebSocketPerMessageDeflateCompressor::WebSocketPerMessageDeflateCompressor()
: _compressBufferSize(kBufferSize)
{
memset(&_deflateState, 0, sizeof(_deflateState));
_deflateState.zalloc = Z_NULL;
_deflateState.zfree = Z_NULL;
_deflateState.opaque = Z_NULL;
}
WebSocketPerMessageDeflateCompressor::~WebSocketPerMessageDeflateCompressor()
{
deflateEnd(&_deflateState);
}
bool WebSocketPerMessageDeflateCompressor::init(uint8_t deflateBits,
bool clientNoContextTakeOver)
{
int ret = deflateInit2(
&_deflateState,
Z_DEFAULT_COMPRESSION,
Z_DEFLATED,
-1*deflateBits,
4, // memory level 1-9
Z_DEFAULT_STRATEGY
);
if (ret != Z_OK) return false;
_compressBuffer.reset(new unsigned char[_compressBufferSize]);
_flush = (clientNoContextTakeOver)
? Z_FULL_FLUSH
: Z_SYNC_FLUSH;
return true;
}
bool WebSocketPerMessageDeflateCompressor::endsWith(const std::string& value,
const std::string& ending)
{
if (ending.size() > value.size()) return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}
bool WebSocketPerMessageDeflateCompressor::compress(const std::string& in,
std::string& out)
{
//
// 7.2.1. Compression
//
// An endpoint uses the following algorithm to compress a message.
//
// 1. Compress all the octets of the payload of the message using
// DEFLATE.
//
// 2. If the resulting data does not end with an empty DEFLATE block
// with no compression (the "BTYPE" bits are set to 00), append an
// empty DEFLATE block with no compression to the tail end.
//
// 3. Remove 4 octets (that are 0x00 0x00 0xff 0xff) from the tail end.
// After this step, the last octet of the compressed data contains
// (possibly part of) the DEFLATE header bits with the "BTYPE" bits
// set to 00.
//
size_t output;
if (in.empty())
{
uint8_t buf[6] = {0x02, 0x00, 0x00, 0x00, 0xff, 0xff};
out.append((char *)(buf), 6);
return true;
}
_deflateState.avail_in = (uInt) in.size();
_deflateState.next_in = (Bytef*) in.data();
do
{
// Output to local buffer
_deflateState.avail_out = (uInt) _compressBufferSize;
_deflateState.next_out = _compressBuffer.get();
deflate(&_deflateState, _flush);
output = _compressBufferSize - _deflateState.avail_out;
out.append((char *)(_compressBuffer.get()),output);
} while (_deflateState.avail_out == 0);
if (endsWith(out, kEmptyUncompressedBlock))
{
out.resize(out.size() - 4);
}
return true;
}
//
// Decompressor
//
WebSocketPerMessageDeflateDecompressor::WebSocketPerMessageDeflateDecompressor()
: _compressBufferSize(kBufferSize)
{
memset(&_inflateState, 0, sizeof(_inflateState));
_inflateState.zalloc = Z_NULL;
_inflateState.zfree = Z_NULL;
_inflateState.opaque = Z_NULL;
_inflateState.avail_in = 0;
_inflateState.next_in = Z_NULL;
}
WebSocketPerMessageDeflateDecompressor::~WebSocketPerMessageDeflateDecompressor()
{
inflateEnd(&_inflateState);
}
bool WebSocketPerMessageDeflateDecompressor::init(uint8_t inflateBits,
bool clientNoContextTakeOver)
{
int ret = inflateInit2(
&_inflateState,
-1*inflateBits
);
if (ret != Z_OK) return false;
_compressBuffer.reset(new unsigned char[_compressBufferSize]);
_flush = (clientNoContextTakeOver)
? Z_FULL_FLUSH
: Z_SYNC_FLUSH;
return true;
}
bool WebSocketPerMessageDeflateDecompressor::decompress(const std::string& in,
std::string& out)
{
//
// 7.2.2. Decompression
//
// An endpoint uses the following algorithm to decompress a message.
//
// 1. Append 4 octets of 0x00 0x00 0xff 0xff to the tail end of the
// payload of the message.
//
// 2. Decompress the resulting data using DEFLATE.
//
std::string inFixed(in);
inFixed += kEmptyUncompressedBlock;
_inflateState.avail_in = (uInt) inFixed.size();
_inflateState.next_in = (unsigned char *)(const_cast<char *>(inFixed.data()));
do
{
_inflateState.avail_out = (uInt) _compressBufferSize;
_inflateState.next_out = _compressBuffer.get();
int ret = inflate(&_inflateState, Z_SYNC_FLUSH);
if (ret == Z_NEED_DICT || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR)
{
return false; // zlib error
}
out.append(
reinterpret_cast<char *>(_compressBuffer.get()),
_compressBufferSize - _inflateState.avail_out
);
} while (_inflateState.avail_out == 0);
return true;
}
WebSocketPerMessageDeflate::WebSocketPerMessageDeflate()
{
_compressor.reset(new WebSocketPerMessageDeflateCompressor());

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@ -34,47 +34,14 @@
#pragma once
#include "zlib.h"
#include <string>
#include <memory>
namespace ix
{
class WebSocketPerMessageDeflateOptions;
class WebSocketPerMessageDeflateCompressor
{
public:
WebSocketPerMessageDeflateCompressor();
~WebSocketPerMessageDeflateCompressor();
bool init(uint8_t deflateBits, bool clientNoContextTakeOver);
bool compress(const std::string& in, std::string& out);
private:
static bool endsWith(const std::string& value, const std::string& ending);
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
z_stream _deflateState;
};
class WebSocketPerMessageDeflateDecompressor
{
public:
WebSocketPerMessageDeflateDecompressor();
~WebSocketPerMessageDeflateDecompressor();
bool init(uint8_t inflateBits, bool clientNoContextTakeOver);
bool decompress(const std::string& in, std::string& out);
private:
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
z_stream _inflateState;
};
class WebSocketPerMessageDeflateCompressor;
class WebSocketPerMessageDeflateDecompressor;
class WebSocketPerMessageDeflate
{

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@ -0,0 +1,204 @@
/*
* IXWebSocketPerMessageDeflateCodec.cpp
* Author: Benjamin Sergeant
* Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
*/
#include "IXWebSocketPerMessageDeflateCodec.h"
#include "IXWebSocketPerMessageDeflateOptions.h"
#include <iostream>
#include <cassert>
#include <string.h>
namespace
{
// The passed in size (4) is important, without it the string litteral
// is treated as a char* and the null termination (\x00) makes it
// look like an empty string.
const std::string kEmptyUncompressedBlock = std::string("\x00\x00\xff\xff", 4);
const int kBufferSize = 1 << 14;
}
namespace ix
{
//
// Compressor
//
WebSocketPerMessageDeflateCompressor::WebSocketPerMessageDeflateCompressor()
: _compressBufferSize(kBufferSize)
{
memset(&_deflateState, 0, sizeof(_deflateState));
_deflateState.zalloc = Z_NULL;
_deflateState.zfree = Z_NULL;
_deflateState.opaque = Z_NULL;
}
WebSocketPerMessageDeflateCompressor::~WebSocketPerMessageDeflateCompressor()
{
deflateEnd(&_deflateState);
}
bool WebSocketPerMessageDeflateCompressor::init(uint8_t deflateBits,
bool clientNoContextTakeOver)
{
int ret = deflateInit2(
&_deflateState,
Z_DEFAULT_COMPRESSION,
Z_DEFLATED,
-1*deflateBits,
4, // memory level 1-9
Z_DEFAULT_STRATEGY
);
if (ret != Z_OK) return false;
_compressBuffer.reset(new unsigned char[_compressBufferSize]);
_flush = (clientNoContextTakeOver)
? Z_FULL_FLUSH
: Z_SYNC_FLUSH;
return true;
}
bool WebSocketPerMessageDeflateCompressor::endsWith(const std::string& value,
const std::string& ending)
{
if (ending.size() > value.size()) return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}
bool WebSocketPerMessageDeflateCompressor::compress(const std::string& in,
std::string& out)
{
//
// 7.2.1. Compression
//
// An endpoint uses the following algorithm to compress a message.
//
// 1. Compress all the octets of the payload of the message using
// DEFLATE.
//
// 2. If the resulting data does not end with an empty DEFLATE block
// with no compression (the "BTYPE" bits are set to 00), append an
// empty DEFLATE block with no compression to the tail end.
//
// 3. Remove 4 octets (that are 0x00 0x00 0xff 0xff) from the tail end.
// After this step, the last octet of the compressed data contains
// (possibly part of) the DEFLATE header bits with the "BTYPE" bits
// set to 00.
//
size_t output;
if (in.empty())
{
uint8_t buf[6] = {0x02, 0x00, 0x00, 0x00, 0xff, 0xff};
out.append((char *)(buf), 6);
return true;
}
_deflateState.avail_in = (uInt) in.size();
_deflateState.next_in = (Bytef*) in.data();
do
{
// Output to local buffer
_deflateState.avail_out = (uInt) _compressBufferSize;
_deflateState.next_out = _compressBuffer.get();
deflate(&_deflateState, _flush);
output = _compressBufferSize - _deflateState.avail_out;
out.append((char *)(_compressBuffer.get()),output);
} while (_deflateState.avail_out == 0);
if (endsWith(out, kEmptyUncompressedBlock))
{
out.resize(out.size() - 4);
}
return true;
}
//
// Decompressor
//
WebSocketPerMessageDeflateDecompressor::WebSocketPerMessageDeflateDecompressor()
: _compressBufferSize(kBufferSize)
{
memset(&_inflateState, 0, sizeof(_inflateState));
_inflateState.zalloc = Z_NULL;
_inflateState.zfree = Z_NULL;
_inflateState.opaque = Z_NULL;
_inflateState.avail_in = 0;
_inflateState.next_in = Z_NULL;
}
WebSocketPerMessageDeflateDecompressor::~WebSocketPerMessageDeflateDecompressor()
{
inflateEnd(&_inflateState);
}
bool WebSocketPerMessageDeflateDecompressor::init(uint8_t inflateBits,
bool clientNoContextTakeOver)
{
int ret = inflateInit2(
&_inflateState,
-1*inflateBits
);
if (ret != Z_OK) return false;
_compressBuffer.reset(new unsigned char[_compressBufferSize]);
_flush = (clientNoContextTakeOver)
? Z_FULL_FLUSH
: Z_SYNC_FLUSH;
return true;
}
bool WebSocketPerMessageDeflateDecompressor::decompress(const std::string& in,
std::string& out)
{
//
// 7.2.2. Decompression
//
// An endpoint uses the following algorithm to decompress a message.
//
// 1. Append 4 octets of 0x00 0x00 0xff 0xff to the tail end of the
// payload of the message.
//
// 2. Decompress the resulting data using DEFLATE.
//
std::string inFixed(in);
inFixed += kEmptyUncompressedBlock;
_inflateState.avail_in = (uInt) inFixed.size();
_inflateState.next_in = (unsigned char *)(const_cast<char *>(inFixed.data()));
do
{
_inflateState.avail_out = (uInt) _compressBufferSize;
_inflateState.next_out = _compressBuffer.get();
int ret = inflate(&_inflateState, Z_SYNC_FLUSH);
if (ret == Z_NEED_DICT || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR)
{
return false; // zlib error
}
out.append(
reinterpret_cast<char *>(_compressBuffer.get()),
_compressBufferSize - _inflateState.avail_out
);
} while (_inflateState.avail_out == 0);
return true;
}
}

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@ -0,0 +1,50 @@
/*
* IXWebSocketPerMessageDeflateCodec.h
* Author: Benjamin Sergeant
* Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
*/
#pragma once
#include "zlib.h"
#include <string>
#include <memory>
namespace ix
{
class WebSocketPerMessageDeflateCompressor
{
public:
WebSocketPerMessageDeflateCompressor();
~WebSocketPerMessageDeflateCompressor();
bool init(uint8_t deflateBits, bool clientNoContextTakeOver);
bool compress(const std::string& in, std::string& out);
private:
static bool endsWith(const std::string& value, const std::string& ending);
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
z_stream _deflateState;
};
class WebSocketPerMessageDeflateDecompressor
{
public:
WebSocketPerMessageDeflateDecompressor();
~WebSocketPerMessageDeflateDecompressor();
bool init(uint8_t inflateBits, bool clientNoContextTakeOver);
bool decompress(const std::string& in, std::string& out);
private:
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
z_stream _inflateState;
};
}

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@ -9,6 +9,7 @@
#include <sstream>
#include <iostream>
#include <algorithm>
#include <cctype>
namespace ix
{

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@ -12,10 +12,20 @@
#include <sstream>
#include <future>
#include <netdb.h>
#include <stdio.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#ifdef _WIN32
# include <basetsd.h>
# include <WinSock2.h>
# include <ws2def.h>
# include <WS2tcpip.h>
# include <io.h>
#else
# include <unistd.h>
# include <netdb.h>
# include <stdio.h>
# include <arpa/inet.h>
# include <sys/socket.h>
#endif
#include <string.h>
namespace ix
@ -72,14 +82,15 @@ namespace ix
{
std::stringstream ss;
ss << "WebSocketServer::listen() error creating socket): "
<< strerror(errno);
<< strerror(Socket::getErrno());
return std::make_pair(false, ss.str());
}
// Make that socket reusable. (allow restarting this server at will)
int enable = 1;
if (setsockopt(_serverFd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) < 0)
if (setsockopt(_serverFd, SOL_SOCKET, SO_REUSEADDR,
(char*) &enable, sizeof(enable)) < 0)
{
std::stringstream ss;
ss << "WebSocketServer::listen() error calling setsockopt(SO_REUSEADDR): "
@ -105,7 +116,7 @@ namespace ix
{
std::stringstream ss;
ss << "WebSocketServer::listen() error calling bind: "
<< strerror(errno);
<< strerror(Socket::getErrno());
return std::make_pair(false, ss.str());
}
@ -117,7 +128,7 @@ namespace ix
{
std::stringstream ss;
ss << "WebSocketServer::listen() error calling listen: "
<< strerror(errno);
<< strerror(Socket::getErrno());
return std::make_pair(false, ss.str());
}
@ -191,12 +202,12 @@ namespace ix
if ((clientFd = accept(_serverFd, (struct sockaddr *)&client, &addressLen)) < 0)
{
if (errno != EWOULDBLOCK)
if (Socket::getErrno() != EWOULDBLOCK)
{
// FIXME: that error should be propagated
std::stringstream ss;
ss << "WebSocketServer::run() error accepting connection: "
<< strerror(errno);
<< strerror(Socket::getErrno());
logError(ss.str());
}
continue;

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@ -409,7 +409,7 @@ namespace ix
{
std::string decompressedMessage;
bool success = _perMessageDeflate.decompress(message, decompressedMessage);
onMessageCallback(decompressedMessage, wireSize, not success, messageKind);
onMessageCallback(decompressedMessage, wireSize, !success, messageKind);
}
else
{

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@ -25,7 +25,7 @@ test_server:
# env TEST=Websocket_server make test
test:
(cd test && sh run.sh)
python test/run.py
.PHONY: test
.PHONY: build

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@ -8,7 +8,9 @@ project (ixwebsocket_unittest)
set (CMAKE_CXX_STANDARD 11)
option(USE_TLS "Add TLS support" ON)
if (NOT WIN32)
option(USE_TLS "Add TLS support" ON)
endif()
add_subdirectory(${PROJECT_SOURCE_DIR}/.. ixwebsocket)

62
test/run.py Normal file
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@ -0,0 +1,62 @@
import os
import platform
import shutil
osName = platform.system()
print('os name = {}'.format(osName))
root = os.path.dirname(os.path.realpath(__file__))
buildDir = os.path.join(root, 'build')
if not os.path.exists(buildDir):
os.mkdir(buildDir)
os.chdir(buildDir)
if osName == 'Windows':
generator = '-G"NMake Makefiles"'
make = 'nmake'
testBinary ='ixwebsocket_unittest.exe'
else:
generator = ''
make = 'make'
testBinary ='./ixwebsocket_unittest'
os.system('cmake -DCMAKE_BUILD_TYPE=Debug {} ..'.format(generator))
ret = os.system(make)
assert ret == 0, 'Make failed, exiting'
def findFiles(prefix):
'''Find all files under a given directory'''
paths = []
for root, _, files in os.walk(prefix):
for path in files:
fullPath = os.path.join(root, path)
if os.path.islink(fullPath):
continue
paths.append(fullPath)
return paths
for path in findFiles('.'):
print(path)
shutil.copy(os.path.join(
'..',
'..',
'third_party',
'ZLIB-Windows',
'zlib-1.2.11_deploy_v140',
'release_dynamic',
'x64',
'bin',
'zlib.dll'), '.')
# unittest broken on Windows
if osName != 'Windows':
os.system(testBinary)

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@ -7,8 +7,14 @@
#define CATCH_CONFIG_RUNNER
#include "catch.hpp"
#include <ixwebsocket/IXSocket.h>
int main(int argc, char* argv[])
{
ix::Socket::init(); // for Windows
int result = Catch::Session().run(argc, argv);
ix::Socket::cleanup(); // for Windows
return result;
}

115
third_party/ZLIB-Windows/README.md vendored Normal file
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@ -0,0 +1,115 @@
ZLIB DATA COMPRESSION LIBRARY
zlib 1.2.11 is a general purpose data compression library. All the code is
thread safe. The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
rfc1952 (gzip format).
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example
of the library is given in the file test/example.c which also tests that
the library is working correctly. Another example is given in the file
test/minigzip.c. The compression library itself is composed of all source
files in the root directory.
To compile all files and run the test program, follow the instructions given at
the top of Makefile.in. In short "./configure; make test", and if that goes
well, "make install" should work for most flavors of Unix. For Windows, use
one of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
make_vms.com.
Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
<info@winimage.com> for the Windows DLL version. The zlib home page is
http://zlib.net/ . Before reporting a problem, please check this site to
verify that you have the latest version of zlib; otherwise get the latest
version and check whether the problem still exists or not.
PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
issue of Dr. Dobb's Journal; a copy of the article is available at
http://marknelson.us/1997/01/01/zlib-engine/ .
The changes made in version 1.2.11 are documented in the file ChangeLog.
Unsupported third party contributions are provided in directory contrib/ .
zlib is available in Java using the java.util.zip package, documented at
http://java.sun.com/developer/technicalArticles/Programming/compression/ .
A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available
at CPAN (Comprehensive Perl Archive Network) sites, including
http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
available in Python 1.5 and later versions, see
http://docs.python.org/library/zlib.html .
zlib is built into tcl: http://wiki.tcl.tk/4610 .
An experimental package to read and write files in .zip format, written on top
of zlib by Gilles Vollant <info@winimage.com>, is available in the
contrib/minizip directory of zlib.
Notes for some targets:
- For Windows DLL versions, please see win32/DLL_FAQ.txt
- For 64-bit Irix, deflate.c must be compiled without any optimization. With
-O, one libpng test fails. The test works in 32 bit mode (with the -n32
compiler flag). The compiler bug has been reported to SGI.
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
when compiled with cc.
- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
necessary to get gzprintf working correctly. This is done by configure.
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
other compilers. Use "make test" to check your compiler.
- gzdopen is not supported on RISCOS or BEOS.
- For PalmOs, see http://palmzlib.sourceforge.net/
Acknowledgments:
The deflate format used by zlib was defined by Phil Katz. The deflate and
zlib specifications were written by L. Peter Deutsch. Thanks to all the
people who reported problems and suggested various improvements in zlib; they
are too numerous to cite here.
Copyright notice:
(C) 1995-2017 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Jean-loup Gailly Mark Adler
jloup@gzip.org madler@alumni.caltech.edu
If you use the zlib library in a product, we would appreciate *not* receiving
lengthy legal documents to sign. The sources are provided for free but without
warranty of any kind. The library has been entirely written by Jean-loup
Gailly and Mark Adler; it does not include third-party code.
If you redistribute modified sources, we would appreciate that you include in
the file ChangeLog history information documenting your changes. Please read
the FAQ for more information on the distribution of modified source versions.

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/* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#ifndef ZCONF_H
#define ZCONF_H
/* #undef Z_PREFIX */
/* #undef Z_HAVE_UNISTD_H */
/*
* If you *really* need a unique prefix for all types and library functions,
* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
* Even better than compiling with -DZ_PREFIX would be to use configure to set
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
# define Z_PREFIX_SET
/* all linked symbols and init macros */
# define _dist_code z__dist_code
# define _length_code z__length_code
# define _tr_align z__tr_align
# define _tr_flush_bits z__tr_flush_bits
# define _tr_flush_block z__tr_flush_block
# define _tr_init z__tr_init
# define _tr_stored_block z__tr_stored_block
# define _tr_tally z__tr_tally
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
# define adler32_z z_adler32_z
# ifndef Z_SOLO
# define compress z_compress
# define compress2 z_compress2
# define compressBound z_compressBound
# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
# define crc32_z z_crc32_z
# define deflate z_deflate
# define deflateBound z_deflateBound
# define deflateCopy z_deflateCopy
# define deflateEnd z_deflateEnd
# define deflateGetDictionary z_deflateGetDictionary
# define deflateInit z_deflateInit
# define deflateInit2 z_deflateInit2
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
# ifndef Z_SOLO
# define gz_error z_gz_error
# define gz_intmax z_gz_intmax
# define gz_strwinerror z_gz_strwinerror
# define gzbuffer z_gzbuffer
# define gzclearerr z_gzclearerr
# define gzclose z_gzclose
# define gzclose_r z_gzclose_r
# define gzclose_w z_gzclose_w
# define gzdirect z_gzdirect
# define gzdopen z_gzdopen
# define gzeof z_gzeof
# define gzerror z_gzerror
# define gzflush z_gzflush
# define gzfread z_gzfread
# define gzfwrite z_gzfwrite
# define gzgetc z_gzgetc
# define gzgetc_ z_gzgetc_
# define gzgets z_gzgets
# define gzoffset z_gzoffset
# define gzoffset64 z_gzoffset64
# define gzopen z_gzopen
# define gzopen64 z_gzopen64
# ifdef _WIN32
# define gzopen_w z_gzopen_w
# endif
# define gzprintf z_gzprintf
# define gzputc z_gzputc
# define gzputs z_gzputs
# define gzread z_gzread
# define gzrewind z_gzrewind
# define gzseek z_gzseek
# define gzseek64 z_gzseek64
# define gzsetparams z_gzsetparams
# define gztell z_gztell
# define gztell64 z_gztell64
# define gzungetc z_gzungetc
# define gzvprintf z_gzvprintf
# define gzwrite z_gzwrite
# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
# define inflateBackInit z_inflateBackInit
# define inflateBackInit_ z_inflateBackInit_
# define inflateCodesUsed z_inflateCodesUsed
# define inflateCopy z_inflateCopy
# define inflateEnd z_inflateEnd
# define inflateGetDictionary z_inflateGetDictionary
# define inflateGetHeader z_inflateGetHeader
# define inflateInit z_inflateInit
# define inflateInit2 z_inflateInit2
# define inflateInit2_ z_inflateInit2_
# define inflateInit_ z_inflateInit_
# define inflateMark z_inflateMark
# define inflatePrime z_inflatePrime
# define inflateReset z_inflateReset
# define inflateReset2 z_inflateReset2
# define inflateResetKeep z_inflateResetKeep
# define inflateSetDictionary z_inflateSetDictionary
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
# define inflateValidate z_inflateValidate
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
# ifndef Z_SOLO
# define uncompress z_uncompress
# define uncompress2 z_uncompress2
# endif
# define zError z_zError
# ifndef Z_SOLO
# define zcalloc z_zcalloc
# define zcfree z_zcfree
# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
/* all zlib typedefs in zlib.h and zconf.h */
# define Byte z_Byte
# define Bytef z_Bytef
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
# ifndef Z_SOLO
# define gzFile z_gzFile
# endif
# define gz_header z_gz_header
# define gz_headerp z_gz_headerp
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
# define uInt z_uInt
# define uIntf z_uIntf
# define uLong z_uLong
# define uLongf z_uLongf
# define voidp z_voidp
# define voidpc z_voidpc
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
# define gz_header_s z_gz_header_s
# define internal_state z_internal_state
#endif
#if defined(__MSDOS__) && !defined(MSDOS)
# define MSDOS
#endif
#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
# define OS2
#endif
#if defined(_WINDOWS) && !defined(WINDOWS)
# define WINDOWS
#endif
#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
# ifndef WIN32
# define WIN32
# endif
#endif
#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
# ifndef SYS16BIT
# define SYS16BIT
# endif
# endif
#endif
/*
* Compile with -DMAXSEG_64K if the alloc function cannot allocate more
* than 64k bytes at a time (needed on systems with 16-bit int).
*/
#ifdef SYS16BIT
# define MAXSEG_64K
#endif
#ifdef MSDOS
# define UNALIGNED_OK
#endif
#ifdef __STDC_VERSION__
# ifndef STDC
# define STDC
# endif
# if __STDC_VERSION__ >= 199901L
# ifndef STDC99
# define STDC99
# endif
# endif
#endif
#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
# define STDC
#endif
#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
# define STDC
#endif
#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
# define STDC
#endif
#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
# define STDC
#endif
#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */
# define STDC
#endif
#ifndef STDC
# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
# define const /* note: need a more gentle solution here */
# endif
#endif
#if defined(ZLIB_CONST) && !defined(z_const)
# define z_const const
#else
# define z_const
#endif
#ifdef Z_SOLO
typedef unsigned long z_size_t;
#else
# define z_longlong long long
# if defined(NO_SIZE_T)
typedef unsigned NO_SIZE_T z_size_t;
# elif defined(STDC)
# include <stddef.h>
typedef size_t z_size_t;
# else
typedef unsigned long z_size_t;
# endif
# undef z_longlong
#endif
/* Maximum value for memLevel in deflateInit2 */
#ifndef MAX_MEM_LEVEL
# ifdef MAXSEG_64K
# define MAX_MEM_LEVEL 8
# else
# define MAX_MEM_LEVEL 9
# endif
#endif
/* Maximum value for windowBits in deflateInit2 and inflateInit2.
* WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
* created by gzip. (Files created by minigzip can still be extracted by
* gzip.)
*/
#ifndef MAX_WBITS
# define MAX_WBITS 15 /* 32K LZ77 window */
#endif
/* The memory requirements for deflate are (in bytes):
(1 << (windowBits+2)) + (1 << (memLevel+9))
that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
plus a few kilobytes for small objects. For example, if you want to reduce
the default memory requirements from 256K to 128K, compile with
make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
Of course this will generally degrade compression (there's no free lunch).
The memory requirements for inflate are (in bytes) 1 << windowBits
that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
for small objects.
*/
/* Type declarations */
#ifndef OF /* function prototypes */
# ifdef STDC
# define OF(args) args
# else
# define OF(args) ()
# endif
#endif
#ifndef Z_ARG /* function prototypes for stdarg */
# if defined(STDC) || defined(Z_HAVE_STDARG_H)
# define Z_ARG(args) args
# else
# define Z_ARG(args) ()
# endif
#endif
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
* to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
* just define FAR to be empty.
*/
#ifdef SYS16BIT
# if defined(M_I86SM) || defined(M_I86MM)
/* MSC small or medium model */
# define SMALL_MEDIUM
# ifdef _MSC_VER
# define FAR _far
# else
# define FAR far
# endif
# endif
# if (defined(__SMALL__) || defined(__MEDIUM__))
/* Turbo C small or medium model */
# define SMALL_MEDIUM
# ifdef __BORLANDC__
# define FAR _far
# else
# define FAR far
# endif
# endif
#endif
#if defined(WINDOWS) || defined(WIN32)
/* If building or using zlib as a DLL, define ZLIB_DLL.
* This is not mandatory, but it offers a little performance increase.
*/
# ifdef ZLIB_DLL
# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
# ifdef ZLIB_INTERNAL
# define ZEXTERN extern __declspec(dllexport)
# else
# define ZEXTERN extern __declspec(dllimport)
# endif
# endif
# endif /* ZLIB_DLL */
/* If building or using zlib with the WINAPI/WINAPIV calling convention,
* define ZLIB_WINAPI.
* Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
*/
# ifdef ZLIB_WINAPI
# ifdef FAR
# undef FAR
# endif
# include <windows.h>
/* No need for _export, use ZLIB.DEF instead. */
/* For complete Windows compatibility, use WINAPI, not __stdcall. */
# define ZEXPORT WINAPI
# ifdef WIN32
# define ZEXPORTVA WINAPIV
# else
# define ZEXPORTVA FAR CDECL
# endif
# endif
#endif
#if defined (__BEOS__)
# ifdef ZLIB_DLL
# ifdef ZLIB_INTERNAL
# define ZEXPORT __declspec(dllexport)
# define ZEXPORTVA __declspec(dllexport)
# else
# define ZEXPORT __declspec(dllimport)
# define ZEXPORTVA __declspec(dllimport)
# endif
# endif
#endif
#ifndef ZEXTERN
# define ZEXTERN extern
#endif
#ifndef ZEXPORT
# define ZEXPORT
#endif
#ifndef ZEXPORTVA
# define ZEXPORTVA
#endif
#ifndef FAR
# define FAR
#endif
#if !defined(__MACTYPES__)
typedef unsigned char Byte; /* 8 bits */
#endif
typedef unsigned int uInt; /* 16 bits or more */
typedef unsigned long uLong; /* 32 bits or more */
#ifdef SMALL_MEDIUM
/* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
# define Bytef Byte FAR
#else
typedef Byte FAR Bytef;
#endif
typedef char FAR charf;
typedef int FAR intf;
typedef uInt FAR uIntf;
typedef uLong FAR uLongf;
#ifdef STDC
typedef void const *voidpc;
typedef void FAR *voidpf;
typedef void *voidp;
#else
typedef Byte const *voidpc;
typedef Byte FAR *voidpf;
typedef Byte *voidp;
#endif
#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
# include <limits.h>
# if (UINT_MAX == 0xffffffffUL)
# define Z_U4 unsigned
# elif (ULONG_MAX == 0xffffffffUL)
# define Z_U4 unsigned long
# elif (USHRT_MAX == 0xffffffffUL)
# define Z_U4 unsigned short
# endif
#endif
#ifdef Z_U4
typedef Z_U4 z_crc_t;
#else
typedef unsigned long z_crc_t;
#endif
#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H
#endif
#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_STDARG_H
#endif
#ifdef STDC
# ifndef Z_SOLO
# include <sys/types.h> /* for off_t */
# endif
#endif
#if defined(STDC) || defined(Z_HAVE_STDARG_H)
# ifndef Z_SOLO
# include <stdarg.h> /* for va_list */
# endif
#endif
#ifdef _WIN32
# ifndef Z_SOLO
# include <stddef.h> /* for wchar_t */
# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
* "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
* though the former does not conform to the LFS document), but considering
* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
* equivalently requesting no 64-bit operations
*/
#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
# undef _LARGEFILE64_SOURCE
#endif
#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
# define Z_HAVE_UNISTD_H
#endif
#ifndef Z_SOLO
# if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
# ifdef VMS
# include <unixio.h> /* for off_t */
# endif
# ifndef z_off_t
# define z_off_t off_t
# endif
# endif
#endif
#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
# define Z_LFS64
#endif
#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
# define Z_LARGE64
#endif
#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
# define Z_WANT64
#endif
#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
#endif
#ifndef z_off_t
# define z_off_t long
#endif
#if !defined(_WIN32) && defined(Z_LARGE64)
# define z_off64_t off64_t
#else
# if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
# define z_off64_t __int64
# else
# define z_off64_t z_off_t
# endif
#endif
/* MVS linker does not support external names larger than 8 bytes */
#if defined(__MVS__)
#pragma map(deflateInit_,"DEIN")
#pragma map(deflateInit2_,"DEIN2")
#pragma map(deflateEnd,"DEEND")
#pragma map(deflateBound,"DEBND")
#pragma map(inflateInit_,"ININ")
#pragma map(inflateInit2_,"ININ2")
#pragma map(inflateEnd,"INEND")
#pragma map(inflateSync,"INSY")
#pragma map(inflateSetDictionary,"INSEDI")
#pragma map(compressBound,"CMBND")
#pragma map(inflate_table,"INTABL")
#pragma map(inflate_fast,"INFA")
#pragma map(inflate_copyright,"INCOPY")
#endif
#endif /* ZCONF_H */

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/* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#ifndef ZCONF_H
#define ZCONF_H
/* #undef Z_PREFIX */
/* #undef Z_HAVE_UNISTD_H */
/*
* If you *really* need a unique prefix for all types and library functions,
* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
* Even better than compiling with -DZ_PREFIX would be to use configure to set
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
# define Z_PREFIX_SET
/* all linked symbols and init macros */
# define _dist_code z__dist_code
# define _length_code z__length_code
# define _tr_align z__tr_align
# define _tr_flush_bits z__tr_flush_bits
# define _tr_flush_block z__tr_flush_block
# define _tr_init z__tr_init
# define _tr_stored_block z__tr_stored_block
# define _tr_tally z__tr_tally
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
# define adler32_z z_adler32_z
# ifndef Z_SOLO
# define compress z_compress
# define compress2 z_compress2
# define compressBound z_compressBound
# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
# define crc32_z z_crc32_z
# define deflate z_deflate
# define deflateBound z_deflateBound
# define deflateCopy z_deflateCopy
# define deflateEnd z_deflateEnd
# define deflateGetDictionary z_deflateGetDictionary
# define deflateInit z_deflateInit
# define deflateInit2 z_deflateInit2
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
# ifndef Z_SOLO
# define gz_error z_gz_error
# define gz_intmax z_gz_intmax
# define gz_strwinerror z_gz_strwinerror
# define gzbuffer z_gzbuffer
# define gzclearerr z_gzclearerr
# define gzclose z_gzclose
# define gzclose_r z_gzclose_r
# define gzclose_w z_gzclose_w
# define gzdirect z_gzdirect
# define gzdopen z_gzdopen
# define gzeof z_gzeof
# define gzerror z_gzerror
# define gzflush z_gzflush
# define gzfread z_gzfread
# define gzfwrite z_gzfwrite
# define gzgetc z_gzgetc
# define gzgetc_ z_gzgetc_
# define gzgets z_gzgets
# define gzoffset z_gzoffset
# define gzoffset64 z_gzoffset64
# define gzopen z_gzopen
# define gzopen64 z_gzopen64
# ifdef _WIN32
# define gzopen_w z_gzopen_w
# endif
# define gzprintf z_gzprintf
# define gzputc z_gzputc
# define gzputs z_gzputs
# define gzread z_gzread
# define gzrewind z_gzrewind
# define gzseek z_gzseek
# define gzseek64 z_gzseek64
# define gzsetparams z_gzsetparams
# define gztell z_gztell
# define gztell64 z_gztell64
# define gzungetc z_gzungetc
# define gzvprintf z_gzvprintf
# define gzwrite z_gzwrite
# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
# define inflateBackInit z_inflateBackInit
# define inflateBackInit_ z_inflateBackInit_
# define inflateCodesUsed z_inflateCodesUsed
# define inflateCopy z_inflateCopy
# define inflateEnd z_inflateEnd
# define inflateGetDictionary z_inflateGetDictionary
# define inflateGetHeader z_inflateGetHeader
# define inflateInit z_inflateInit
# define inflateInit2 z_inflateInit2
# define inflateInit2_ z_inflateInit2_
# define inflateInit_ z_inflateInit_
# define inflateMark z_inflateMark
# define inflatePrime z_inflatePrime
# define inflateReset z_inflateReset
# define inflateReset2 z_inflateReset2
# define inflateResetKeep z_inflateResetKeep
# define inflateSetDictionary z_inflateSetDictionary
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
# define inflateValidate z_inflateValidate
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
# ifndef Z_SOLO
# define uncompress z_uncompress
# define uncompress2 z_uncompress2
# endif
# define zError z_zError
# ifndef Z_SOLO
# define zcalloc z_zcalloc
# define zcfree z_zcfree
# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
/* all zlib typedefs in zlib.h and zconf.h */
# define Byte z_Byte
# define Bytef z_Bytef
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
# ifndef Z_SOLO
# define gzFile z_gzFile
# endif
# define gz_header z_gz_header
# define gz_headerp z_gz_headerp
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
# define uInt z_uInt
# define uIntf z_uIntf
# define uLong z_uLong
# define uLongf z_uLongf
# define voidp z_voidp
# define voidpc z_voidpc
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
# define gz_header_s z_gz_header_s
# define internal_state z_internal_state
#endif
#if defined(__MSDOS__) && !defined(MSDOS)
# define MSDOS
#endif
#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
# define OS2
#endif
#if defined(_WINDOWS) && !defined(WINDOWS)
# define WINDOWS
#endif
#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
# ifndef WIN32
# define WIN32
# endif
#endif
#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
# ifndef SYS16BIT
# define SYS16BIT
# endif
# endif
#endif
/*
* Compile with -DMAXSEG_64K if the alloc function cannot allocate more
* than 64k bytes at a time (needed on systems with 16-bit int).
*/
#ifdef SYS16BIT
# define MAXSEG_64K
#endif
#ifdef MSDOS
# define UNALIGNED_OK
#endif
#ifdef __STDC_VERSION__
# ifndef STDC
# define STDC
# endif
# if __STDC_VERSION__ >= 199901L
# ifndef STDC99
# define STDC99
# endif
# endif
#endif
#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
# define STDC
#endif
#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
# define STDC
#endif
#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
# define STDC
#endif
#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
# define STDC
#endif
#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */
# define STDC
#endif
#ifndef STDC
# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
# define const /* note: need a more gentle solution here */
# endif
#endif
#if defined(ZLIB_CONST) && !defined(z_const)
# define z_const const
#else
# define z_const
#endif
#ifdef Z_SOLO
typedef unsigned long z_size_t;
#else
# define z_longlong long long
# if defined(NO_SIZE_T)
typedef unsigned NO_SIZE_T z_size_t;
# elif defined(STDC)
# include <stddef.h>
typedef size_t z_size_t;
# else
typedef unsigned long z_size_t;
# endif
# undef z_longlong
#endif
/* Maximum value for memLevel in deflateInit2 */
#ifndef MAX_MEM_LEVEL
# ifdef MAXSEG_64K
# define MAX_MEM_LEVEL 8
# else
# define MAX_MEM_LEVEL 9
# endif
#endif
/* Maximum value for windowBits in deflateInit2 and inflateInit2.
* WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
* created by gzip. (Files created by minigzip can still be extracted by
* gzip.)
*/
#ifndef MAX_WBITS
# define MAX_WBITS 15 /* 32K LZ77 window */
#endif
/* The memory requirements for deflate are (in bytes):
(1 << (windowBits+2)) + (1 << (memLevel+9))
that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
plus a few kilobytes for small objects. For example, if you want to reduce
the default memory requirements from 256K to 128K, compile with
make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
Of course this will generally degrade compression (there's no free lunch).
The memory requirements for inflate are (in bytes) 1 << windowBits
that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
for small objects.
*/
/* Type declarations */
#ifndef OF /* function prototypes */
# ifdef STDC
# define OF(args) args
# else
# define OF(args) ()
# endif
#endif
#ifndef Z_ARG /* function prototypes for stdarg */
# if defined(STDC) || defined(Z_HAVE_STDARG_H)
# define Z_ARG(args) args
# else
# define Z_ARG(args) ()
# endif
#endif
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
* to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
* just define FAR to be empty.
*/
#ifdef SYS16BIT
# if defined(M_I86SM) || defined(M_I86MM)
/* MSC small or medium model */
# define SMALL_MEDIUM
# ifdef _MSC_VER
# define FAR _far
# else
# define FAR far
# endif
# endif
# if (defined(__SMALL__) || defined(__MEDIUM__))
/* Turbo C small or medium model */
# define SMALL_MEDIUM
# ifdef __BORLANDC__
# define FAR _far
# else
# define FAR far
# endif
# endif
#endif
#if defined(WINDOWS) || defined(WIN32)
/* If building or using zlib as a DLL, define ZLIB_DLL.
* This is not mandatory, but it offers a little performance increase.
*/
# ifdef ZLIB_DLL
# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
# ifdef ZLIB_INTERNAL
# define ZEXTERN extern __declspec(dllexport)
# else
# define ZEXTERN extern __declspec(dllimport)
# endif
# endif
# endif /* ZLIB_DLL */
/* If building or using zlib with the WINAPI/WINAPIV calling convention,
* define ZLIB_WINAPI.
* Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
*/
# ifdef ZLIB_WINAPI
# ifdef FAR
# undef FAR
# endif
# include <windows.h>
/* No need for _export, use ZLIB.DEF instead. */
/* For complete Windows compatibility, use WINAPI, not __stdcall. */
# define ZEXPORT WINAPI
# ifdef WIN32
# define ZEXPORTVA WINAPIV
# else
# define ZEXPORTVA FAR CDECL
# endif
# endif
#endif
#if defined (__BEOS__)
# ifdef ZLIB_DLL
# ifdef ZLIB_INTERNAL
# define ZEXPORT __declspec(dllexport)
# define ZEXPORTVA __declspec(dllexport)
# else
# define ZEXPORT __declspec(dllimport)
# define ZEXPORTVA __declspec(dllimport)
# endif
# endif
#endif
#ifndef ZEXTERN
# define ZEXTERN extern
#endif
#ifndef ZEXPORT
# define ZEXPORT
#endif
#ifndef ZEXPORTVA
# define ZEXPORTVA
#endif
#ifndef FAR
# define FAR
#endif
#if !defined(__MACTYPES__)
typedef unsigned char Byte; /* 8 bits */
#endif
typedef unsigned int uInt; /* 16 bits or more */
typedef unsigned long uLong; /* 32 bits or more */
#ifdef SMALL_MEDIUM
/* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
# define Bytef Byte FAR
#else
typedef Byte FAR Bytef;
#endif
typedef char FAR charf;
typedef int FAR intf;
typedef uInt FAR uIntf;
typedef uLong FAR uLongf;
#ifdef STDC
typedef void const *voidpc;
typedef void FAR *voidpf;
typedef void *voidp;
#else
typedef Byte const *voidpc;
typedef Byte FAR *voidpf;
typedef Byte *voidp;
#endif
#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
# include <limits.h>
# if (UINT_MAX == 0xffffffffUL)
# define Z_U4 unsigned
# elif (ULONG_MAX == 0xffffffffUL)
# define Z_U4 unsigned long
# elif (USHRT_MAX == 0xffffffffUL)
# define Z_U4 unsigned short
# endif
#endif
#ifdef Z_U4
typedef Z_U4 z_crc_t;
#else
typedef unsigned long z_crc_t;
#endif
#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H
#endif
#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_STDARG_H
#endif
#ifdef STDC
# ifndef Z_SOLO
# include <sys/types.h> /* for off_t */
# endif
#endif
#if defined(STDC) || defined(Z_HAVE_STDARG_H)
# ifndef Z_SOLO
# include <stdarg.h> /* for va_list */
# endif
#endif
#ifdef _WIN32
# ifndef Z_SOLO
# include <stddef.h> /* for wchar_t */
# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
* "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
* though the former does not conform to the LFS document), but considering
* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
* equivalently requesting no 64-bit operations
*/
#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
# undef _LARGEFILE64_SOURCE
#endif
#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
# define Z_HAVE_UNISTD_H
#endif
#ifndef Z_SOLO
# if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
# ifdef VMS
# include <unixio.h> /* for off_t */
# endif
# ifndef z_off_t
# define z_off_t off_t
# endif
# endif
#endif
#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
# define Z_LFS64
#endif
#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
# define Z_LARGE64
#endif
#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
# define Z_WANT64
#endif
#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
#endif
#ifndef z_off_t
# define z_off_t long
#endif
#if !defined(_WIN32) && defined(Z_LARGE64)
# define z_off64_t off64_t
#else
# if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
# define z_off64_t __int64
# else
# define z_off64_t z_off_t
# endif
#endif
/* MVS linker does not support external names larger than 8 bytes */
#if defined(__MVS__)
#pragma map(deflateInit_,"DEIN")
#pragma map(deflateInit2_,"DEIN2")
#pragma map(deflateEnd,"DEEND")
#pragma map(deflateBound,"DEBND")
#pragma map(inflateInit_,"ININ")
#pragma map(inflateInit2_,"ININ2")
#pragma map(inflateEnd,"INEND")
#pragma map(inflateSync,"INSY")
#pragma map(inflateSetDictionary,"INSEDI")
#pragma map(compressBound,"CMBND")
#pragma map(inflate_table,"INTABL")
#pragma map(inflate_fast,"INFA")
#pragma map(inflate_copyright,"INCOPY")
#endif
#endif /* ZCONF_H */

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