zookeeper_dispatch

(PECL zookeeper >= 0.4.0)

zookeeper_dispatch — Calls callbacks for pending operations

Beschreibung

zookeeper_dispatch(): void

The zookeeper_dispatch() function calls the callbacks passed by operations like Zookeeper::get() or Zookeeper::exists().

Achtung

Since version 0.4.0, this function must be called manually to achieve asynchronous operations. If you want that to be done automatically, you also can declare ticks at the beginning of your program.

After PHP 7.1, you can ignore this function. This extension uses EG(vm_interrupt) to implement async dispatch.

Parameter-Liste

Diese Funktion besitzt keine Parameter.

Rückgabewerte

Es wird kein Wert zurückgegeben.

Fehler/Exceptions

This method emits PHP warning when callback could not be invoked.

Beispiele

Beispiel #1 zookeeper_dispatch() example #1

Dispatch callbacks manually.

<?php
$client = new Zookeeper();
$client->connect('localhost:2181');
$client->get('/zookeeper', function() {
    echo "Callback was called".PHP_EOL;
});
while(true) {
    sleep(1);
    zookeeper_dispatch();
}
?>

Beispiel #2 zookeeper_dispatch() example #2

Declare ticks.

<?php
declare(ticks=1);

$client = new Zookeeper();
$client->connect('localhost:2181');
$client->get('/zookeeper', function() {
    echo "Callback was called".PHP_EOL;
});
while(true) {
    sleep(1);
}
?>

Siehe auch

Zookeeper::addAuth() - Specify application credentials
Zookeeper::connect() - Create a handle to used communicate with zookeeper
Zookeeper::__construct() - Create a handle to used communicate with zookeeper
Zookeeper::exists() - Checks the existence of a node in zookeeper synchronously
Zookeeper::get() - Gets the data associated with a node synchronously
Zookeeper::getChildren() - Lists the children of a node synchronously
Zookeeper::setWatcher() - Set a watcher function