PHP 多线程扩展（正儿八经的线程）pthreads安装

环境CentOS 6.3 64bit，php 5.4.5

pthreads需要线程安全环境，

下载php的安装包，解压：

  tar zxvf php-5.4.5.tar.gz//名字是不是这个我不确定，自己去下载

安装：

./configure --enable-zts --prefix=/usr/local/php-zts //或者 --enable-maintainer-zts

make

make install

结果就把线程安装版的php安装到了/usr/local/php-zts，目前我不了解开启线程安全到底会带来什么影响，所以，就弄两个测试版本。

如果遇到undefined reference to `executor_globals_id'

make clean就可以了

下载和安装pthreads:

tar zxvf pthreads

cd pthreads-0.0.45 // 本文的是第一个stable版本

/usr/local/php-zts/bin/phpize
./configure --with-php-config=/usr/local/php-zts/bin/php-config
make
make install

 

 

 

/usr/local/php-zts/bin/php -i|grep "php.ini"
找出php.ini的位置，修改它把ext=pthreads.so加入进入进去，因为我原来就有php，现在新装的php.ini文件不存在我就考了一个过去……

pthreads-0.0.45/examples目录下有些示例文件，比文档有用，在线文档根本不能说明问题，我修改了一个，执行了一下：

 

<?php/** Sharing symbols 101* @NOTE Thread::fetch was never included in a release and was superceeded by object handlers* pthreads allows read access to thread data from any contextpthreads allows write access to thread data from any contextcarry on reading ...work in progress ...*/class TestObject {public $val;}class Fetching extends Thread {public function run(){/** of course ...*/$this->sym = 10245;$this->arr = array("1", "2", "3");echo '6'.chr(10);/** objects do work, no preparation needed ...* read/write objects isn't finalized ..* so do the dance to make it work ...*/$obj = new TestObject();$obj->val = "testval";$this->obj = $obj;echo '7'.chr(10);/** will always work*/$this->objs = serialize($this->obj);echo '8'.chr(10);/** nooooooo*/$this->res = fopen("php://stdout", "w");echo '9'.chr(10);/** tell the waiting process we have created symbols and fetch will succeed*/$this->synchronized(function(){    $this->notify();});echo '10'.chr(10);/* wait for the process to be finished with the stream */$this->synchronized(function(){    $this->wait();});echo '11'.chr(10);}}echo '0'.chr(10);$thread = new Fetching();echo '1'.chr(10);$thread->start();//sleep(1); 加了这个就不能正常工作，真奇怪echo '2'.chr(10);$thread->synchronized(function($me){echo '3'.chr(10);    $me->wait();echo '4'.chr(10);}, $thread);echo '5'.chr(10);/** we just got notified that there are symbols waiting*/foreach(array("sym", "arr", "obj", "objs", "res") as $symbol){printf("\$thread->%s: ", $symbol);$fetched = $thread->$symbol;if ($fetched) {switch($symbol){/** manual unserialize*/case "objs":var_dump(unserialize($fetched));break;default: var_dump($fetched);}}printf("\n");}/* notify the thread so it can destroy resource */$thread->synchronized(function($me){    $me->notify();}, $thread);?>

/usr/local/php-zts/bin/php Fetch.php

结果：

0
1
2
3
6
7
8
9
10
4
5
$thread->sym: int(10245)
 
$thread->arr: array(3) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "3"
}
 
$thread->obj: object(TestObject)#2 (1) {
  ["val"]=>
  string(7) "testval"
}
 
$thread->objs: object(TestObject)#2 (1) {
  ["val"]=>
  string(7) "testval"
}
 
$thread->res: resource(3) of type (stream)
 
11

发个全点儿的php编译参数：

./configure
--prefix=/usr/local/php-zts
--enable-sockets
--enable-pcntl
--enable-maintainer-zts
--enable-sysvmsg
--enable-mbstring
--with-mysql=/usr
--with-mysql-sock=/var/lib/mysql/mysql.sock  
--with-mysqli=/usr/lib64/mysql/mysql_config
--with-pdo-mysql=/usr/lib64/mysql/mysql_config/configure

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windows版：

http://blog.csdn.net/aoyoo111/article/details/19020161