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zookeeper_dispatch
(PECL zookeeper >= 0.4.0)
zookeeper_dispatch — Calls callbacks for pending operations
Description
The zookeeper_dispatch() function calls the callbacks passwd by operations like Zookeeper::get() or Zookeeper::exists().
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.
Examples
Example #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();
}
?>
Examples
Example #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);
}
?>
See Also
- 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
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.zookeeper-dispatch.html
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References
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