c++ - pthread_join() 在 iOS 上失败

Question

我正在 IOS 上做一个多线程项目。在我的项目中，pthread 连接有时会失败。

pthread_join(thread_id, NULL) == 0

注意:这仅发生在 IOS 上并且是随机的。加入操作失败的原因可能是什么。

Answer 1

手册页说:

错误 如果出现以下情况，pthread_join() 将失败:

 [EDEADLK]          A deadlock was detected or the value of thread speci-
                    fies the calling thread.

 [EINVAL]           The implementation has detected that the value speci-
                    fied by thread does not refer to a joinable thread.

 [ESRCH]            No thread could be found corresponding to that speci-
                    fied by the given thread ID, thread.