コード例 #1
0
ファイル: osdwork.c プロジェクト: DarrenBranford/MAME4iOS
static void *worker_thread_entry(void *param)
{
	work_thread_info *thread = (work_thread_info *)param;
	osd_work_queue *queue = thread->queue;

	// loop until we exit
	for ( ;; )
	{
		// block waiting for work or exit
		// bail on exit, and only wait if there are no pending items in queue
		if (!queue->exiting && queue->list == NULL)
		{
			begin_timing(thread->waittime);
			osd_event_wait(thread->wakeevent, INFINITE);
			end_timing(thread->waittime);
		}
		if (queue->exiting)
			break;

		// indicate that we are live
		atomic_exchange32(&thread->active, TRUE);
		atomic_increment32(&queue->livethreads);

		// process work items
		for ( ;; )
		{
			osd_ticks_t stopspin;

			// process as much as we can
			worker_thread_process(queue, thread);

			// if we're a high frequency queue, spin for a while before giving up
			if (queue->flags & WORK_QUEUE_FLAG_HIGH_FREQ && queue->list == NULL)
			{
				// spin for a while looking for more work
				begin_timing(thread->spintime);
				stopspin = osd_ticks() + SPIN_LOOP_TIME;
				
				do {
					int spin = 10000;
					while (--spin && queue->list == NULL)
						osd_yield_processor();
				} while (queue->list == NULL && osd_ticks() < stopspin);
				end_timing(thread->spintime);
			}

			// if nothing more, release the processor
			if (queue->list == NULL)
				break;
			add_to_stat(&queue->spinloops, 1);
		}

		// decrement the live thread count
		atomic_exchange32(&thread->active, FALSE);
		atomic_decrement32(&queue->livethreads);
	}
	return NULL;
}
コード例 #2
0
    // It's the object's responsibility to delete pObj within the execute_task() method, if needed!
    bool task_pool::queue_task(executable_task *pObj, uint64_t data, void *pData_ptr)
    {
        VOGL_ASSERT(pObj);

        task tsk;
        tsk.m_pObj = pObj;
        tsk.m_data = data;
        tsk.m_pData_ptr = pData_ptr;
        tsk.m_flags = cTaskFlagObject;

        atomic_increment32(&m_total_submitted_tasks);
        if (!m_task_stack.try_push(tsk))
        {
            atomic_increment32(&m_total_completed_tasks);
            return false;
        }

        m_tasks_available.release(1);

        return true;
    }
コード例 #3
0
    bool task_pool::queue_task(task_callback_func pFunc, uint64_t data, void *pData_ptr)
    {
        VOGL_ASSERT(pFunc);

        task tsk;
        tsk.m_callback = pFunc;
        tsk.m_data = data;
        tsk.m_pData_ptr = pData_ptr;
        tsk.m_flags = 0;

        atomic_increment32(&m_total_submitted_tasks);
        if (!m_task_stack.try_push(tsk))
        {
            atomic_increment32(&m_total_completed_tasks);
            return false;
        }

        m_tasks_available.release(1);

        return true;
    }
コード例 #4
0
    void task_pool::process_task(task &tsk)
    {
        if (tsk.m_flags & cTaskFlagObject)
            tsk.m_pObj->execute_task(tsk.m_data, tsk.m_pData_ptr);
        else
            tsk.m_callback(tsk.m_data, tsk.m_pData_ptr);

        if (atomic_increment32(&m_total_completed_tasks) == m_total_submitted_tasks)
        {
            // Try to signal the semaphore (the max count is 1 so this may actually fail).
            m_all_tasks_completed.try_release();
        }
    }
コード例 #5
0
ファイル: http-client-test2.cpp プロジェクト: azalpy/sdk
static void http_client_test_onreply(void* p, void *http, int code)
{
	if(p)
	{
		atomic_increment32((int32_t*)p);
	}

	if(0 == code)
	{
		const char* server = http_client_get_header(http, "Server");
		if(server)
			printf("http server: %s\n", server);
	}
	else
	{
		printf("http server reply error: %d\n", code);
	}
}
コード例 #6
0
ファイル: winwork.c プロジェクト: kleopatra999/mess-svn
INLINE INT32 scalable_lock_acquire(scalable_lock *lock)
{
#if USE_SCALABLE_LOCKS
    INT32 myslot = (atomic_increment32(&lock->nextindex) - 1) & (WORK_MAX_THREADS - 1);
    INT32 backoff = 1;

    while (!lock->slot[myslot].haslock)
    {
        INT32 backcount;
        for (backcount = 0; backcount < backoff; backcount++)
            YieldProcessor();
        backoff <<= 1;
    }
    lock->slot[myslot].haslock = FALSE;
    return myslot;
#else
    EnterCriticalSection(&lock->section);
    return 0;
#endif
}
コード例 #7
0
   // It's the object's responsibility to delete pObj within the execute_task() method, if needed!
   bool task_pool::queue_task(executable_task* pObj, uint64 data, void* pData_ptr)
   {
      LZHAM_ASSERT(m_num_threads);
      LZHAM_ASSERT(pObj);

      task tsk;
      tsk.m_pObj = pObj;
      tsk.m_data = data;
      tsk.m_pData_ptr = pData_ptr;
      tsk.m_flags = cTaskFlagObject;

      if (!m_task_stack.try_push(tsk))
         return false;

      atomic_increment32(&m_num_outstanding_tasks);

      m_tasks_available.release(1);

      return true;
   }
コード例 #8
0
   bool task_pool::queue_task(task_callback_func pFunc, uint64 data, void* pData_ptr)
   {
      LZHAM_ASSERT(m_num_threads);
      LZHAM_ASSERT(pFunc);

      task tsk;
      tsk.m_callback = pFunc;
      tsk.m_data = data;
      tsk.m_pData_ptr = pData_ptr;
      tsk.m_flags = 0;

      if (!m_task_stack.try_push(tsk))
         return false;

      atomic_increment32(&m_num_outstanding_tasks);

      m_tasks_available.release(1);

      return true;
   }
コード例 #9
0
ファイル: thread-pool-test.c プロジェクト: azalpy/sdk
static void worker(void* param)
{
	int i = 0;
	int n = *(int*)param + 1;

	while(i++ < n)
	{
#if defined(OS_MAC)
        system_sleep(arc4random() % 30);
#else
		system_sleep(rand() % 30);
#endif
		if(210 == atomic_increment32(&total))
		{
			printf("[%d] I'm the KING\n", n);
			assert(i == n);
			break;
		}
	}

	printf("[%d] done\n", n);
}
コード例 #10
0
ファイル: work_osd.c プロジェクト: crazii/mameplus
static void *worker_thread_entry(void *param)
{
	work_thread_info *thread = (work_thread_info *)param;
	osd_work_queue *queue = thread->queue;

#if defined(SDLMAME_MACOSX)
	void *arp = NewAutoreleasePool();
#endif

	// loop until we exit
	for ( ;; )
	{
		// block waiting for work or exit
		// bail on exit, and only wait if there are no pending items in queue
		if (queue->exiting)
			break;

		if (!queue_has_list_items(queue))
		{
			begin_timing(thread->waittime);
			osd_event_wait(thread->wakeevent, OSD_EVENT_WAIT_INFINITE);
			end_timing(thread->waittime);
		}

		if (queue->exiting)
			break;

		// indicate that we are live
		atomic_exchange32(&thread->active, TRUE);
		atomic_increment32(&queue->livethreads);

		// process work items
		for ( ;; )
		{
			// process as much as we can
			worker_thread_process(queue, thread);

			// if we're a high frequency queue, spin for a while before giving up
			if (queue->flags & WORK_QUEUE_FLAG_HIGH_FREQ && queue->list == NULL)
			{
				// spin for a while looking for more work
				begin_timing(thread->spintime);
				spin_while(&queue->list, (osd_work_item *)NULL, SPIN_LOOP_TIME);
				end_timing(thread->spintime);
			}

			// if nothing more, release the processor
			if (!queue_has_list_items(queue))
				break;
			add_to_stat(&queue->spinloops, 1);
		}

		// decrement the live thread count
		atomic_exchange32(&thread->active, FALSE);
		atomic_decrement32(&queue->livethreads);
	}

#if defined(SDLMAME_MACOSX)
	ReleaseAutoreleasePool(arp);
#endif

	return NULL;
}
コード例 #11
0
ファイル: rtp-member.c プロジェクト: zackxue/media-server
void rtp_member_addref(struct rtp_member *member)
{
	atomic_increment32(&member->ref);
}