EvPeriodic::__construct

(PECL ev >= 0.2.0)

EvPeriodic::__construct — Constructs EvPeriodic watcher object

Описание

public EvPeriodic::__construct ( double $offset , string $interval , callable $reschedule_cb , callable $callback [, mixed $data = NULL [, int $priority = 0 ]] )

Constructs EvPeriodic watcher object and starts it automatically. EvPeriodic::createStopped() method creates stopped periodic watcher.

Список параметров

offset - See Periodic watcher operation modes

interval - See Periodic watcher operation modes

reschedule_cb - Reschedule callback. You can pass NULL. See Periodic watcher operation modes

callback - See Watcher callbacks .

data - Custom data associated with the watcher.

priority - Watcher priority

Возвращаемые значения

Returns EvPeriodic object on success.

Примеры

Пример #1 Periodic timer. Use reschedule callback

// Tick each 10.5 seconds
function reschedule_cb ($watcher, $now) {
 return $now + (10.5. - fmod($now, 10.5));
}
$w = new EvPeriodic(0., 0., "reschedule_cb", function ($w, $revents) {
 echo time(), PHP_EOL;
});
Ev::run();

Пример #2 Periodic timer. Tick every 10.5 seconds starting at now

// Tick every 10.5 seconds starting at now
$w = new EvPeriodic(fmod(Ev::now(), 10.5), 10.5, NULL, function ($w, $revents) {
 echo time(), PHP_EOL;
});
Ev::run();

Пример #3 Hourly watcher

$hourly = EvPeriodic(0, 3600, NULL, function () {
 echo "once per hour\n";
};

Смотрите также

• Periodic watcher operation modes
• EvTimer
• EvPeriodic::createStopped() - Create a stopped EvPeriodic watcher

User Contributed Notes

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Описание класса evperiodic, примеры использования класса evperiodic.

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