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<?php |
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/** |
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* Created by PhpStorm. |
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* User: Jenner |
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* Date: 2015/11/3 |
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* Time: 14:37 |
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*/ |
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namespace Jenner\SimpleFork; |
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/** |
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* processes' pool |
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* |
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* @package Jenner\SimpleFork |
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*/ |
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abstract class AbstractPool |
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{ |
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/** |
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* process list |
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* |
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* @var Process[] |
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*/ |
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protected $processes = array(); |
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/** |
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* get process by pid |
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* |
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* @param $pid |
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* @return null|Process |
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*/ |
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public function getProcessByPid($pid) |
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{ |
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foreach ($this->processes as $process) { |
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if ($process->getPid() == $pid) { |
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return $process; |
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} |
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} |
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return null; |
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} |
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/** |
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* shutdown all process |
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* |
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* @param int $signal |
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*/ |
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public function shutdown($signal = SIGTERM) |
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{ |
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foreach ($this->processes as $process) { |
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if ($process->isRunning()) { |
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$process->shutdown(true, $signal); |
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} |
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} |
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} |
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/** |
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* shutdown sub process and no wait. it is dangerous, |
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* maybe the sub process is working. |
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*/ |
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public function shutdownForce() |
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{ |
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$this->shutdown(SIGKILL); |
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} |
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/** |
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* get the count of running processes |
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* |
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* @return int |
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*/ |
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public function aliveCount() |
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{ |
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$count = 0; |
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foreach ($this->processes as $process) { |
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if ($process->isRunning()) { |
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$count++; |
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} |
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} |
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return $count; |
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} |
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/** |
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* if all processes are stopped |
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* |
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* @return bool |
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*/ |
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public function isFinished() |
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{ |
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foreach ($this->processes as $process) { |
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if (!$process->isStopped()) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* waiting for the sub processes to exit |
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* |
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* @param bool|true $block if true the parent process will be blocked until all |
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* sub processes exit. else it will check if thers are processes that had been exited once and return. |
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* @param int $sleep when $block is true, it will check sub processes every $sleep minute |
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*/ |
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public function wait($block = true, $sleep = 100) |
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{ |
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do { |
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foreach ($this->processes as $process) { |
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if (!$process->isRunning()) { |
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continue; |
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} |
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} |
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usleep($sleep); |
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} while ($block && $this->aliveCount() > 0); |
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} |
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} |
huyanping /
simple-fork-php
