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.
* 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
*/
class CoreExport Mutex
{
- private:
+ protected:
pthread_mutex_t putex;
public:
/** Constructor.
}
};
-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);
void Wait()
{
- pthread_cond_wait(&cond, &mutex);
+ pthread_cond_wait(&cond, &putex);
}
};