]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - include/threadengines/threadengine_win32.h
Switch <stdint.h> test to use a test file too.
[user/henk/code/inspircd.git] / include / threadengines / threadengine_win32.h
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..f068ac70785ff35a3152bc65535b103f854fcc6f 100644 (file)
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+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef THREADENGINE_WIN32_H
+#define THREADENGINE_WIN32_H
+
+#include "inspircd_config.h"
+#include "base.h"
+
+class Thread;
+
+/** The ThreadEngine class has the responsibility of initialising
+ * Thread derived classes. It does this by creating operating system
+ * level threads which are then associated with the class transparently.
+ * This allows Thread classes to be derived without needing to know how
+ * the OS implements threads. You should ensure that any sections of code
+ * that use threads are threadsafe and do not interact with any other
+ * parts of the code which are NOT known threadsafe! If you really MUST
+ * access non-threadsafe code from a Thread, use the Mutex class to wrap
+ * access to the code carefully.
+ */
+class CoreExport ThreadEngine
+{
+ public:
+
+       ThreadEngine();
+
+       virtual ~ThreadEngine();
+
+       static DWORD WINAPI Entry(void* parameter);
+
+       /** Create a new thread. This takes an already allocated
+         * Thread* pointer and initializes it to use this threading
+         * engine. On failure, this function may throw a CoreException.
+         * @param thread_to_init Pointer to a newly allocated Thread
+         * derived object.
+         */
+       void Start(Thread* thread_to_init);
+
+       /** Returns the thread engine's name for display purposes
+        * @return The thread engine name
+        */
+       const std::string GetName()
+       {
+               return "windows-thread";
+       }
+};
+
+class CoreExport ThreadData
+{
+ public:
+       HANDLE handle;
+       void FreeThread(Thread* toFree);
+};
+
+/** The Mutex class represents a mutex, which can be used to keep threads
+ * properly synchronised. Use mutexes sparingly, as they are a good source
+ * of thread deadlocks etc, and should be avoided except where absolutely
+ * neccessary. Note that the internal behaviour of the mutex varies from OS
+ * to OS depending on the thread engine, for example in windows a Mutex
+ * in InspIRCd uses critical sections, as they are faster and simpler to
+ * manage.
+ */
+class CoreExport Mutex
+{
+ private:
+       CRITICAL_SECTION wutex;
+ public:
+       Mutex()
+       {
+               InitializeCriticalSection(&wutex);
+       }
+       void Lock()
+       {
+               EnterCriticalSection(&wutex);
+       }
+       void Unlock()
+       {
+               LeaveCriticalSection(&wutex);
+       }
+       ~Mutex()
+       {
+               DeleteCriticalSection(&wutex);
+       }
+};
+
+class ThreadQueueData
+{
+       CRITICAL_SECTION mutex;
+       HANDLE event;
+ public:
+       ThreadQueueData()
+       {
+               event = CreateEvent(NULL, false, false, NULL);
+               if (event == NULL)
+                       throw CoreException("CreateEvent() failed in ThreadQueueData::ThreadQueueData()!");
+               InitializeCriticalSection(&mutex);
+       }
+
+       ~ThreadQueueData()
+       {
+               CloseHandle(event);
+               DeleteCriticalSection(&mutex);
+       }
+
+       void Lock()
+       {
+               EnterCriticalSection(&mutex);
+       }
+
+       void Unlock()
+       {
+               LeaveCriticalSection(&mutex);
+       }
+
+       void Wakeup()
+       {
+               PulseEvent(event);
+       }
+
+       void Wait()
+       {
+               LeaveCriticalSection(&mutex);
+               WaitForSingleObject(event, INFINITE);
+               EnterCriticalSection(&mutex);
+       }
+};
+
+class ThreadSignalData
+{
+ public:
+       int connFD;
+       ThreadSignalData()
+       {
+               connFD = -1;
+       }
+};
+
+#endif
+