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Home Backend Development PHP Tutorial SimpleFork php multi-process concurrency framework

SimpleFork php multi-process concurrency framework

Jul 30, 2016 pm 01:29 PM
declare ext nbsp php

SimpleFork
Project address: https://github.com/huyanping/simple-fork-phpMulti-process process concurrency framework based on PCNTL extension, the interface is similar to Java's Thread and RunnableWhy write SimpleFork
Writing multi-process programs is more complicated than writing multi-threads. Issues such as process recycling, synchronization, mutual exclusion, and communication need to be considered. For beginners, it will be difficult to deal with the above problems. Especially in the area of ??signal processing and process communication, it is difficult to avoid problems. SimpleFork provides a set of process control interfaces similar to JAVA multi-threading, providing recycling, synchronization, mutual exclusion, communication and other solutions. Developers can focus on business issues and do not need to think too much about process control. Introduction
composer require jenner/simple_forkrequirepath/to/SimpleFork/autoload.phpDependency
Required
  • ext-pcntl process control
  • Optional
  • ext-sysvmsg message queue
  • ext-sysvsem synchronization mutex lock
  • ext -sysvshm shared memory
  • Features
  • Provide process pool
  • Automatically handle zombie process recycling, support non-blocking calls
  • Provide shared memory, System V message queue, Semaphore lock to facilitate IPC communication (process communication)
  • Provides two methods of Process and Runnable to implement the process
  • You can get the process status in real time
  • When shutting down all processes or stopping a process alone, you can register and override the beforeExit() method, return true to exit, false to continue running (in some scenarios , the process cannot exit immediately)
  • Supports reload when the child process is running
  • Notes
  • The System V message queue will not be destroyed because there may be unprocessed data when the program exits. If it needs to be destroyed, please call the $queue->remove() method to delete the queue
  • The shared memory will be deleted after all processes exit
  • The Semaphore object will be destroyed when the object is recycled
  • After the process pool start(), you need to call wait() can be called non-blockingly for zombie process recycling
  • Before obtaining the process status (calling the isAlive() method), it is best to call a non-blocking wait(false) for recycling, because the judgment of the process running status is not an atomic operation , so the isAlive() method does not guarantee that it is completely consistent with the actual status. If you don’t know under what circumstances you need to add declare(ticks=1); at the beginning of the program, then it is best to add this statement to the first line by default. .
  • How to use declare(ticks=1);
    declare(ticks=1); This declaration is used for process signal processing. If a signal handler is registered, the program will automatically check if there are any unhandled signals before executing a line of code. http://php.net/manual/zh/control-structures.declare.php
  • TODO
  • ?提供更多功能的進程池,模仿java
  • ?提供第三方進程通信機制(Redis等)
  • ?更多的測試及示例程序
  • 示例程序
    更多示例程序見exmples目錄simple.phpclassTestRunnableextends\Jenner\SimpleFork\Runnable{/** * 進程執(zhí)行入口 * @return mixed */publicfunctionrun() {echo"I am a sub process".PHP_EOL; }}$process=new\Jenner\SimpleFork\Process(newTestRunnable());$process->start();shared_memory.phpclassProducerextends\Jenner\SimpleFork\Process{publicfunctionrun(){for($i=0; $i<10; $i++){$this->cache->set($i, $i);echo"set {$i} : {$i}".PHH_EOL; } }}classWorkerextends\Jenner\SimpleFork\Process{publicfunctionrun(){sleep(5);for($i=0; $i<10; $i++){echo"get {$i} : ".$this->cache->get($i) .PHP_EOL; } }}$memory=new\Jenner\SimpleFork\IPC\SharedMemory();$producer=newProducer();$producer->setCache($memory);$worker=newWorker();$worker->setCache($memory);$pool=new\Jenner\SimpleFork\Pool();$pool->submit($producer);$pool->submit($worker);$pool->start();$pool->wait();

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