use pipe to abort select on Linux as well as macOS

CMakeLists.txt

@@ -33,6 +33,7 @@ set( IXWEBSOCKET_SOURCES
     ixwebsocket/IXHttpClient.cpp
     ixwebsocket/IXUrlParser.cpp
     ixwebsocket/IXSelectInterrupt.cpp
+    ixwebsocket/IXSelectInterruptPipe.cpp
     ixwebsocket/IXSelectInterruptFactory.cpp
 )
 
@@ -59,14 +60,13 @@ set( IXWEBSOCKET_HEADERS
     ixwebsocket/IXHttpClient.h
     ixwebsocket/IXUrlParser.h
     ixwebsocket/IXSelectInterrupt.h
+    ixwebsocket/IXSelectInterruptPipe.h
     ixwebsocket/IXSelectInterruptFactory.h
 )
 
 # Platform specific code
 if (APPLE)
     list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/apple/IXSetThreadName_apple.cpp)
-    list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSelectInterruptPipe.cpp)
-    list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSelectInterruptPipe.h)
 elseif (WIN32)
     list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/windows/IXSetThreadName_windows.cpp)
 else()

ixwebsocket/IXSelectInterruptFactory.cpp

@@ -6,9 +6,7 @@
 
 #include "IXSelectInterruptFactory.h"
 
-#if defined(__linux__)
-# include <ixwebsocket/IXSelectInterruptEventFd.h>
-#elif defined(__APPLE__)
+#if defined(__linux__) || defined(__APPLE__)
 # include <ixwebsocket/IXSelectInterruptPipe.h>
 #else
 # include <ixwebsocket/IXSelectInterrupt.h>
@@ -18,9 +16,7 @@ namespace ix
 {
     std::shared_ptr<SelectInterrupt> createSelectInterrupt()
     {
-#if defined(__linux__)
-        return std::make_shared<SelectInterruptEventFd>();
-#elif defined(__APPLE__)
+#if defined(__linux__) || defined(__APPLE__)
         return std::make_shared<SelectInterruptPipe>();
 #else
         return std::make_shared<SelectInterrupt>();

test/run.py

@@ -2,6 +2,39 @@ import os
 import platform
 import shutil
 
+import subprocess
+import threading
+
+
+class Command(object):
+    """Run system commands with timeout
+    
+    From http://www.bo-yang.net/2016/12/01/python-run-command-with-timeout
+    Python3 might have a builtin way to do that.
+    """
+    def __init__(self, cmd):
+        self.cmd = cmd
+        self.process = None
+
+    def run_command(self, capture = False):
+        self.process = subprocess.Popen(self.cmd, shell=True)
+        self.process.communicate()
+
+    def run(self, timeout = 5 * 60):
+        '''5 minutes default timeout'''
+        thread = threading.Thread(target=self.run_command, args=())
+        thread.start()
+        thread.join(timeout)
+
+        if thread.is_alive():
+            print 'Command timeout, kill it: ' + self.cmd
+            self.process.terminate()
+            thread.join()
+            return False, 255
+        else:
+            return True, self.process.returncode
+
+
 osName = platform.system()
 print('os name = {}'.format(osName))
 
@@ -81,5 +114,6 @@ shutil.copy(os.path.join(
 # lldb = "lldb --batch -o 'run' -k 'thread backtrace all' -k 'quit 1'"
 lldb = ""  # Disabled for now
 testCommand = '{} {} {}'.format(lldb, testBinary, os.getenv('TEST', ''))
-ret = os.system(testCommand)
+command = Command(testCommand)
+timedout, ret = command.run()
 assert ret == 0, 'Test command failed'