Pool::collect
(PECL pthreads >= 2.0.0)
Pool::collect — 回收已完成任务的引用
说明
$collector
)对于视为垃圾的引用，使用给定的垃圾收集器进行收集
参数
-
collector -
可调用的垃圾收集器
返回值
void
范例
Example #1 创建 Pool 对象
<?php
class MyWork extends Stackable {
public function __construct () {
$this -> complete = false ;
}
public function run () {
printf (
"Hello from %s in Thread #%lu\n" ,
__CLASS__ , $this -> worker -> getThreadId ());
$this -> complete = true ;
}
public function isComplete () {
return $this -> complete ;
}
protected $complete ;
}
class MyWorker extends Worker {
public function __construct ( Something $something ) {
$this -> something = $something ;
}
public function run () {
}
}
$pool = new Pool ( 8 , \ MyWorker ::class, [new Something ()]);
$pool -> submit (new MyWork ());
usleep ( 1000 );
$pool -> collect (function( $work ){
return $work -> isComplete ();
});
var_dump ( $pool );
?> 以上例程会输出：
Hello from MyWork in Thread #140222468777728
object(Pool)#1 (6) {
["size":protected]=>
int(8)
["class":protected]=>
string(8) "MyWorker"
["workers":protected]=>
array(1) {
[0]=>
object(MyWorker)#4 (1) {
["something"]=>
object(Something)#5 (0) {
}
}
}
["work":protected]=>
array(0) {
}
["ctor":protected]=>
array(1) {
[0]=>
object(Something)#2 (0) {
}
}
["last":protected]=>
int(1)
}
用户评论:
[#1] your dot brother dot t at hotmail dot com [2014-12-29 09:33:16]
The example code crashes and made me waste 2 working days
First of all, `Stackable` has no attribute named $worker or it's access method made it inaccessible.
Secondly, `Stackable` also doesn't have `getThreadId()` . It's best practice to use `Thread` class for realization of a thread since it has more control functions. It's better to use `Stackable` for object storage and use it's `run()` as its initialization.
The working example is
<?php
class MyWork extends Thread {
protected $complete;
public function __construct() {
$this->complete = false;
}
public function run() {
printf(
"Hello from %s in Thread #%lu\n",
__CLASS__, $this->getThreadId());
$this->complete = true;
}
public function isComplete() {
return $this->complete;
}
}
class Something {}
class MyWorker extends Worker {
public function __construct(Something $something) {
$this->something = $something;
}
public function run() {
}
}
$pool = new Pool(8, \MyWorker::class, [new Something()]);
$pool->submit(new MyWork());
usleep(1000);
$pool->collect(function($work){
return $work->isComplete();
});
var_dump($pool);
?>