Thread exit method, device and equipment and readable storage medium

Abstract

The invention discloses a thread exit method, device and equipment and a readable storage medium. The method comprises the following steps: receiving a thread exit command; determining a first threadreaching the first barrier and a second thread not reaching the first barrier; when the second thread exits, blocking the second thread by utilizing a second barrier so as to wake up the first threadand the second thread; and controlling the awakened first thread and second thread to exit synchronously according to the thread exit command. According to the method, the second barrier is set in theexit process of the second thread. After the thread exit command is received, the second thread can meet the second barrier during exit, and at the moment, the first thread and the second thread bothreach the barrier, so that the first thread and the second thread can be awakened and exit according to the thread exit command, synchronous exit of the threads is realized, and deadlock is avoided.Correspondingly, the invention also discloses a thread exit device and equipment and a readable storage medium, which also have the above technical effects.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a thread exit method, device, equipment and readable storage medium. Background technique [0002] In the prior art, a barrier is generally used to coordinate the synchronous execution of multiple threads. Specifically: when the thread reaches the barrier, it will be in a dormant state to wait for other threads; after other threads have reached the barrier, all threads that have reached the barrier will be awakened, so that the next processing flow can be executed. [0003] However, barriers introduce another problem in the process of coordinating the simultaneous execution of multiple threads. Assuming that there are two threads (A and B) executing synchronously, currently only the A thread is running to reach the barrier, but the B thread has not yet reached the barrier, and the thread exit command is received at this time. In this case, thread B can exit directly...

AI Technical Summary

Problems solved by technology

In this case, thread B can exit directly according to the thread exit command, but thread A cannot exit according to the thread exit command because it enters the dormant state, so A cannot exit

[0004] It should be noted that the thread is in a dormant state after running and reaching the barrier, so the thread exit command cannot be executed

And because the thread that has not reached the barrier has exited according to the thread exit command, the condition for the thread to be awakened cannot be satisfied, so the A thread has been in a dormant state, resulting in a deadlock

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