PHP中使用pcntl和libevent实现Timer功能
[php]
<?php
function newChild($func_name) {
echo "enter newChild\n";
$args = func_get_args();
unset($args[0]);
$pid = pcntl_fork();
if ($pid == 0) {
function_exists($func_name) and exit(call_user_func_array($func_name, $args)) or exit(-1);
} else if($pid == -1) {
echo "Couldn't create child process";
} else {
return $pid;
}
}
function on_timer() {
echo "timer called\n";
}
/**
* @param $func string, function name
* @param $timeouts int, microtimes for time delay
*/
function timer($func, $timeouts){
echo "enter timer\n";
$base = event_base_new();
$event = event_new();
event_set($event, 0, EV_TIMEOUT, $func);
event_base_set($event, $base);
event_add($event, $timeouts);
event_base_loop($base);
}
$pid = newChild("timer", "on_timer", 5000000);
if ($pid > 0) {
echo "master process exit\n";
}
补充：Web开发 , php ,
