Worker::collect
(PECL pthreads >= 3.0.0)
Worker::collect — Collect references to completed tasks
Description
public int Worker::collect ([ Callable $collector ] )Allows the worker to collect references determined to be garbage by the optionally given collector.
Parameters
collector
A Callable collector that returns a boolean on whether the task can be collected or not. Only in rare cases should a custom collector need to be used.
Return Values
The number of remaining tasks on the worker's stack to be collected.
Examples
Example #1 A basic example of Worker::collect()
<?php
$worker?=?new?Worker();
echo?"There?are?currently?{$worker->collect()}?tasks?on?the?stack?to?be?collected\n";
for?($i?=?0;?$i?<?15;?++$i)?{
????$worker->stack(new?class?extends?Threaded?{});
}
echo?"There?are?{$worker->collect()}?tasks?remaining?on?the?stack?to?be?collected\n";
$worker->start();
while?($worker->collect());?//?blocks?until?all?tasks?have?finished?executing
echo?"There?are?now?{$worker->collect()}?tasks?on?the?stack?to?be?collected\n";
$worker->shutdown();The above example will output:
There are currently 0 tasks on the stack to be collected
There are 15 tasks remaining on the stack to be collected
There are now 0 tasks on the stack to be collected← Worker
Worker::getStacked →
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