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| Python 是怎么知道一个线程是 io 操作，然后释放 GIL 锁给别的线程执行 Python • py1991 • Jan 15, 2019 • Lastly replied by zhichaozhang | 8 |
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Jan 15, 2019 Replied to a topic by py1991 › Python › Python 是怎么知道一个线程是 io 操作，然后释放 GIL 锁给别的线程执行 |
@ysc3839 do {
Py_BEGIN_ALLOW_THREADS
ret = fcntl(fd, code, buf);
Py_END_ALLOW_THREADS
} while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
能否解释下，感觉只看懂了线程开始和结束，循环 fcntl 是否结束
Py_BEGIN_ALLOW_THREADS
ret = fcntl(fd, code, buf);
Py_END_ALLOW_THREADS
} while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
能否解释下，感觉只看懂了线程开始和结束，循环 fcntl 是否结束
Jan 15, 2019 Replied to a topic by py1991 › Python › Python 是怎么知道一个线程是 io 操作，然后释放 GIL 锁给别的线程执行 |
@neoblackcap 惭愧，c 不会，看不懂=。=
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