CentOS 6.3
cd /root
mkdir pthreads
//get php-5.6 and install zts version
tar zxf /php-5.6.11.tar.gz
cd /php-5.6.11
./configure --prefix=/usr/local/php-zts --with-config-file-path=/usr/local/php-zts/etc --enable-fpm --with-fpm-user=apache --with-fpm-group=apache --enable-mbstring --enable-xml --with-mysql --with-mysqli --with-iconv-dir --enable-maintainer-zts --enable-zip --enable-pcntl --enable-sockets
make
make install
//get pthreads
tar zxf pthreads-2.0.10.tgz
cd pthreads-2.0.10
./configure --with-php-config=/usr/local/php-zts/bin/php-confi
make
make install
vi /usr/local/php-zts/etc/php.ini
add:
extension=pthreads.so
cd examples
/usr/local/php-zts/bin/php Mutexes.php
<?php
/* this seems like a pretty good way to show you the difference between threads that are syncrhonized with mutex and those that aren't */
/* will show 50 very neat rows <-.........-> then 50 threads doing the same thing with no mutex */
class MyWorkerThread extends Thread {
public function __construct($limit, $mutex, $id){
$this->limit = $limit;
$this->mutex = $mutex;
$this->id = $id;
}
public function run(){
if($this->mutex)
$locked=Mutex::lock($this->mutex);
printf("%s#%lu:<-", !empty($locked)?"Y":"N", $this->id);
$i=0;
sleep(rand(1,3));
while($i++<$this->limit){
echo ".";
}
printf("->
");
if($this->mutex)
Mutex::unlock($this->mutex);
return true;
}
}
$timer = microtime(true);
/* create and lock a mutex */
$mutex = Mutex::create(true);
/* create workers */
$workers = array();
for($i=0;$i<10;$i++){
$workers[$i]=new MyWorkerThread(rand(30, 100), $mutex,$i);
/* they cannot go anywhere, I have the mutex */
$workers[$i]->start();
}
printf("Release the (muzzled) hounds ... :
");
Mutex::unlock($mutex);
foreach($workers as $i=> $worker)
$workers[$i]->join();
printf("Muzzled: %f seconds
", microtime(true)-$timer);
/* please remember to destroy mutex and condition variables */
Mutex::destroy($mutex);
$timer = microtime(true);
/* same again, no mutex */
printf("Now no mutex ... :
");
$workers = array();
for($i=0;$i<10;$i++){
$workers[$i]=new MyWorkerThread(rand(30, 100),null,$i);
/* they cannot go anywhere, I have the mutex */
$workers[$i]->start();
}
foreach($workers as $worker)
$worker->join();
printf("Dribbling: %f seconds
", microtime(true)-$timer);
?>改了一下，可以明显看到用了Mute会是按照顺序执行，而不用Mute，则是同时多线程执行的。