// Return true to let pool to handle the thread: reuse or delete.
bool ThreadPool::on_thread_run(ThreadHandle* thread)
{
// execute one thread with one specified task.
//
_LogDebug_("ThreadPool", "run thread handle : %d", thread);
// Lock the thread attributes.
ThreadBase* task = NULL;
{
// We won't keep this lock during the running of the task.
// And the task object will be not delete before it's run() has been completed.
AutoLock(thread->lock);
task = thread->task;
}
//
if (task)
{
_LogDebug_("ThreadPoll", "run thread's task: %d", thread->task);
return task->run();
}
else
{
_LogDebug_("ThreadPool", "No task to run, send to idle set.");
// No task for thread, so just return ture, and according to the reuse, pool will reuse it or delete this thread.
return true;
}
}
BEGIN_ZKIT
void* ThreadBase::threadFunc(void *arg)
{
ThreadBase *thread = (ThreadBase *)arg;
if (thread == 0)
{
return 0; // error.
}
while (!thread->isTerminated())
{
if (thread->run() < 0)
{
printf("\nthread=%d exit because of return value!", thread->getThreadId());
break;
}
}
thread->threadStopped();
printf("\nthread exit: %d", thread->getThreadId());
return 0;
}
void* ThreadBase::runInThread(void *arg)
{
//派生子线程复写run()方法
//向上转型，ThreadBase指针指向子对象（实现多态）
//参数: *arg 为pthread_create()传入的this（即具体的子线程）
ThreadBase *pthread = static_cast<ThreadBase*> (arg);
pthread->run();
return NULL;
}
