event_add
(PECL libevent >= 0.0.1)
event_add — Add an event to the set of monitored events
Description
event_add() schedules the execution of the event
when the event specified in event_set() occurs or in at least the time
specified by the timeout argument. If
timeout was not specified, not timeout is set. The
event must be already initalized by event_set()
and event_base_set() functions. If the
event already has a timeout set, it is replaced by
the new one.
Parameters
-
event -
Valid event resource.
-
timeout -
Optional timeout (in microseconds).
Return Values
event_add() returns TRUE on success or FALSE on error.
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для управления процессами программ
- Libevent
- event_add
- event_base_free
- event_base_loop
- event_base_loopbreak
- event_base_loopexit
- event_base_new
- event_base_priority_init
- event_base_reinit
- event_base_set
- event_buffer_base_set
- event_buffer_disable
- event_buffer_enable
- event_buffer_fd_set
- event_buffer_free
- event_buffer_new
- event_buffer_priority_set
- event_buffer_read
- event_buffer_set_callback
- event_buffer_timeout_set
- event_buffer_watermark_set
- event_buffer_write
- event_del
- event_free
- event_new
- event_priority_set
- event_set
- event_timer_add
- event_timer_del
- event_timer_new
- event_timer_set
Коментарии
This is a Timer example use pcntl and libevent
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";
}