X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fthreadengines%2Fthreadengine_pthread.h;h=ca33542607839ea168c48cb750af928552cca35b;hb=da29af8cba49d51e53d6e68237ccbf6370b6dd1f;hp=5756926fd0e44f751028eb63a20204fbd15822a8;hpb=aa7df4b8234d4b601ad0310605181fdabc8cfcaa;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/threadengines/threadengine_pthread.h b/include/threadengines/threadengine_pthread.h index 5756926fd..ca3354260 100644 --- a/include/threadengines/threadengine_pthread.h +++ b/include/threadengines/threadengine_pthread.h @@ -36,6 +36,13 @@ class CoreExport ThreadEngine { public: + /** Per-thread state, present in each Thread object, managed by the ThreadEngine + */ + struct ThreadState + { + pthread_t pthread_id; + }; + /** 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. @@ -43,13 +50,18 @@ class CoreExport ThreadEngine * derived object. */ void Start(Thread* thread_to_init); -}; -class CoreExport ThreadData -{ - public: - pthread_t pthread_id; - void FreeThread(Thread* toFree); + /** Stop a thread gracefully. + * First, this function asks the thread to terminate by calling Thread::SetExitFlag(). + * Next, it waits until the thread terminates (on the operating system level). Finally, + * all OS-level resources associated with the thread are released. The Thread instance + * passed to the function is NOT freed. + * When this function returns, the thread is stopped and you can destroy it or restart it + * at a later point. + * Stopping a thread that is not running is a bug. + * @param thread The thread to stop. + */ + void Stop(Thread* thread); }; /** The Mutex class represents a mutex, which can be used to keep threads @@ -62,7 +74,7 @@ class CoreExport ThreadData */ class CoreExport Mutex { - private: + protected: pthread_mutex_t putex; public: /** Constructor. @@ -91,33 +103,20 @@ class CoreExport Mutex } }; -class ThreadQueueData +class ThreadQueueData : public Mutex { - pthread_mutex_t mutex; pthread_cond_t cond; public: ThreadQueueData() { - pthread_mutex_init(&mutex, NULL); pthread_cond_init(&cond, NULL); } ~ThreadQueueData() { - pthread_mutex_destroy(&mutex); pthread_cond_destroy(&cond); } - void Lock() - { - pthread_mutex_lock(&mutex); - } - - void Unlock() - { - pthread_mutex_unlock(&mutex); - } - void Wakeup() { pthread_cond_signal(&cond); @@ -125,7 +124,7 @@ class ThreadQueueData void Wait() { - pthread_cond_wait(&cond, &mutex); + pthread_cond_wait(&cond, &putex); } };