/* There are two scenarios here. One is everything works as it should and second if
* the thpool is to be killed. In that manner we try to BYPASS sem_wait and end each thread. */
void thpool_thread_do(thpool_t* tp_p){
while(thpool_keepalive){
if (sem_wait(tp_p->jobqueue->queueSem)) {/* WAITING until there is work in the queue */
perror("thpool_thread_do(): Waiting for semaphore");
exit(1);
}
if (thpool_keepalive){
/* Read job from queue and execute it */
void*(*func_buff)(void* arg);
void* arg_buff;
thpool_job_t* job_p;
pthread_mutex_lock(&mutex); /* LOCK */
job_p = thpool_jobqueue_peek(tp_p);
func_buff=job_p->function;
arg_buff =job_p->arg;
thpool_jobqueue_removelast(tp_p);
pthread_mutex_unlock(&mutex); /* UNLOCK */
func_buff(arg_buff); /* run function */
free(job_p); /* DEALLOC job */
}
else
{
return; /* EXIT thread*/
}
}
return;
}
void thpool_thread_do(thpool_t* tp_p)
{
while(thpool_keepalive ==1)
{
if(sem_wait(tp_p->jobqueue->queueSem)) ///线程阻塞,等待通知 直到消息队列有数据
{
perror("thpool_thread_do(): Waiting for semaphore");
exit(1);
}
if(thpool_keepalive)
{
//(void*)(*function)(void *arg);
FUNC function;
void* arg_buff;
thpool_job_t* job_p;
pthread_mutex_lock(&mutex);
job_p = thpool_jobqueue_peek(tp_p);
function = job_p->function;
arg_buff = job_p->arg;
if(thpool_jobqueue_removelast(tp_p))
return ;
pthread_mutex_unlock(&mutex);
function(arg_buff); //运行 你的方法。
free(job_p); ////释放掉。
}
else
{
return ;
}
}
return ;
}
void thpool_thread_do (thpool_t *tp_p){
while (thpool_keepalive)
{
if (sem_wait (tp_p->jobqueue->queueSem)) //如果工作队列中没有工作，那么所有的线程都将在这里阻塞，当他调用成功的时候，信号量-1
{
fprintf(stderr , "Waiting for semaphore\n");
exit (1);
}
if (thpool_keepalive)
{
void *(*func_buff) (void *arg);
void *arg_buff;
thpool_job_t *job_p;
pthread_mutex_lock (&mutex);
job_p = thpool_jobqueue_peek (tp_p);
func_buff = job_p->function ;
arg_buff= job_p->arg ;
thpool_jobqueue_removelast (tp_p);
pthread_mutex_unlock (&mutex);
func_buff (arg_buff);
free (job_p);
}
else
{
return ;
}
}
return ;
}