当sleep()无法通过警报正常工作时，我还能做什么“睡眠"? [英] What else can i do 'sleep' when the sleep() can't work well with alarm?

问题描述

有许多文件说您应该避免使用带警报的睡眠，因为许多系统将警报用于睡眠实现".实际上，我正遭受着这个问题的困扰. 那么，有谁能帮助我，当sleep()无法通过警报正常工作时，我还能做些睡眠"吗?我已经尝试了Time :: HiRes模块的"usleep"，并选择了select()函数.但是他们也不起作用.

There are many documents say "you should avoid using sleep with alarm, since many systems use alarm for the sleep implementation". And actually, I'm suffering with this problem. So does anyone can help me that what else i can do 'sleep' when the sleep() can't work well with alarm? I have already tried 'usleep' of the Time::HiRes module, and select() function. But they didn't work either.

推荐答案

您可以尝试 AnyEvent :

You can try AnyEvent:

use AnyEvent;

my $cv = AnyEvent->condvar;
my $wait_one_and_a_half_seconds = AnyEvent->timer(
    after => 1.5,
    cb => sub { $cv->send }
);     
# now wait till our time has come
$cv->recv;

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