Monitoring the death of a parent process (via Dispatch Sources)

最新推荐文章于 2018-06-27 14:56:23 发布

chuanyituoku

最新推荐文章于 2018-06-27 14:56:23 发布

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分类专栏： GCD Dispatch Source

本文链接：https://blog.youkuaiyun.com/chuanyituoku/article/details/38928421

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void MonitorParentProcess()
  {
     pid_t parentPID = getppid();
     dispatch_queue_t queue =
  dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
     dispatch_source_t source = dispatch_source_create(DISPATCH_SOURCE_TYPE_PROC,
                                                     parentPID, DISPATCH_PROC_EXIT,
queue);
if (source) {
        dispatch_source_set_event_handler(source, ^{
           MySetAppExitFlag();
           dispatch_source_cancel(source);
           dispatch_release(source);
});
        dispatch_resume(source);
     }
}