Created
December 1, 2015 17:20
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timeout装饰器
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| import signal | |
| import functools | |
| # 定义一个Exception，后面超时抛出 | |
| class TimeoutError(Exception): | |
| pass | |
| def timeout(seconds, error_message='Function call timed out'): | |
| def decorated(func): | |
| def _handle_timeout(signum, frame): | |
| raise TimeoutError(error_message) | |
| def wrapper(*args, **kwargs): | |
| signal.signal(signal.SIGALRM, _handle_timeout) | |
| signal.alarm(seconds) | |
| try: | |
| result = func(*args, **kwargs) | |
| finally: | |
| signal.alarm(0) | |
| return result | |
| return functools.wraps(func)(wrapper) | |
| return decorated |
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