php写的命令行服务,有时候在不需要执行的时候,需要尽可能的降低消耗资源,最简单的降低消耗就是sleep了。 单次循环sleep间隔时间,有时候不满足需求,当前的sleeper采用了类似tcp的重传定时器, 不过,这个东西越sleep越贪睡奥,需要适度控制。 ?phpabstra
php写的命令行服务,有时候在不需要执行的时候,需要尽可能的降低消耗资源,最简单的降低消耗就是sleep了。
单次循环sleep间隔时间,有时候不满足需求,当前的sleeper采用了类似tcp的重传定时器,
不过,这个东西越sleep越贪睡奥,需要适度控制。
<?php abstract class sleeper { protected $init_sleep_time; protected $sleep_time = 0; public function sleeper($init_sleep_time){ $this->sleep_time = $init_sleep_time; $this->init_sleep_time = $init_sleep_time; } public function real_sleep(){ if($this->need_sleep()){ echo $this->sleep_time . "\n"; sleep($this->sleep_time); $this->sleep_time += 3; } else { $this->sleep_time = $this->init_sleep_time; } } public abstract function need_sleep(); } class test_sleeper extends sleeper { public function sleeper($init_sleep_time = 1){ $this->sleep_time = $init_sleep_time; } public function need_sleep(){ return true; } } $sl = new test_sleeper(1); for($i = 0; $ireal_sleep(); }
原文地址:一个贪睡的sleeper, 感谢原作者分享。

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