相关疑难解决方法(0)

如果设置或取消设置事件,是否有更简单的解决方案将窗口手动重置事件移植到pthread,而不是pthread条件变量+ pthread互斥+标记？

我对pthread_cond_signal和pthread_cond_wait有疑问.例如,在下面的代码,根据我的理解,当inc_count的调用调用pthread_cond_signal,计数+ = 125在WATCH_COUNT部只能之后执行count_mutex在解锁inc_count的.

该count_mutex在解锁WATCH_COUNT部时调用pthread_cond_wait执行,仅在被锁定调用pthread_mutex_unlock在inc_count的执行.我对吗？

void *inc_count(void *t) 
{
    int i;
    long my_id = (long)t;

    for (i = 0; i < TCOUNT; i++) 
    {
        pthread_mutex_lock(&count_mutex);
        count++;

        if (count == COUNT_LIMIT) 
        {
            pthread_cond_signal(&count_threshold_cv);
        }

        pthread_mutex_unlock(&count_mutex);
    }

    pthread_exit(NULL);
}

void *watch_count(void *t) 
{
    long my_id = (long)t;

    pthread_mutex_lock(&count_mutex);
    while (count < COUNT_LIMIT)
    {
        pthread_cond_wait(&count_threshold_cv, &count_mutex);
        count += …