1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
14 #ifndef __THREADENGINE_WIN32THREAD__
15 #define __THREADENGINE_WIN32THREAD__
17 #include "inspircd_config.h"
22 /** The ThreadEngine class has the responsibility of initialising
23 * Thread derived classes. It does this by creating operating system
24 * level threads which are then associated with the class transparently.
25 * This allows Thread classes to be derived without needing to know how
26 * the OS implements threads. You should ensure that any sections of code
27 * that use threads are threadsafe and do not interact with any other
28 * parts of the code which are NOT known threadsafe! If you really MUST
29 * access non-threadsafe code from a Thread, use the Mutex class to wrap
30 * access to the code carefully.
32 class CoreExport ThreadEngine
38 virtual ~ThreadEngine();
40 static DWORD WINAPI Entry(void* parameter);
42 /** Create a new thread. This takes an already allocated
43 * Thread* pointer and initializes it to use this threading
44 * engine. On failure, this function may throw a CoreException.
45 * @param thread_to_init Pointer to a newly allocated Thread
48 void Start(Thread* thread_to_init);
50 /** Returns the thread engine's name for display purposes
51 * @return The thread engine name
53 const std::string GetName()
55 return "windows-thread";
59 class CoreExport ThreadData
63 void FreeThread(Thread* toFree);
66 /** The Mutex class represents a mutex, which can be used to keep threads
67 * properly synchronised. Use mutexes sparingly, as they are a good source
68 * of thread deadlocks etc, and should be avoided except where absolutely
69 * neccessary. Note that the internal behaviour of the mutex varies from OS
70 * to OS depending on the thread engine, for example in windows a Mutex
71 * in InspIRCd uses critical sections, as they are faster and simpler to
74 class CoreExport Mutex
77 CRITICAL_SECTION wutex;
81 InitializeCriticalSection(&wutex);
85 EnterCriticalSection(&wutex);
89 LeaveCriticalSection(&wutex);
93 DeleteCriticalSection(&wutex);
99 CRITICAL_SECTION mutex;
104 InitializeCriticalSection(&mutex);
105 event = CreateEvent(NULL, false, false, NULL);
110 DeleteCriticalSection(&mutex);
115 EnterCriticalSection(&mutex);
120 LeaveCriticalSection(&mutex);
130 LeaveCriticalSection(&mutex);
131 WaitForSingleObject(event, INFINITE);
132 EnterCriticalSection(&mutex);
136 class ThreadSignalData