示例 mq_timedreceive [英] Example mq_timedreceive
本文介绍了示例 mq_timedreceive的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我找不到如何使用 mq_timedreceive 正常工作,谁能给我举个例子?
I can not find how to work properly with mq_timedreceive, can anyone give me an example?
ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr,
size_t msg_len, unsigned *msg_prio,
const struct timespec *abs_timeout);
我希望 timereceive 等待的时间不要超过 20 秒.
I want timereceive to do not spent more than 20 seconds waiting.
非常感谢.
推荐答案
struct timespec tm;
clock_gettime(CLOCK_REALTIME, &tm);
tm.tv_sec += 20; // Set for 20 seconds
if( 0 > mq_timedreceive( fd, buf, 4096, NULL, &tm ) ) {
...
}
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