If the program must wait for a resource, such as an I/O completion, specify a maximum wait time, and then fail or requeue the task for execution at a later time.

如果程序必须等待诸如I/O完成这样的某个资源，那么请指定最长的等待时间，以及随后是失效还是将任务重新排队以便稍后执行。

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If the program must wait for a resource, such as an I/O completion, specify a maximum wait time, and then fail or requeue the task for execution at a later time.

如果程序必须等待诸如I/O完成这样的某个资源，那么请指定最长的等待时间，以及随后是失效还是将任务重新排队以便稍后执行。

youdao