swoole 协程channel乱测

channel和数组差不多，可以被用作队列，属性capacity是设置容量，isEmpty() isFull() 用来判断队列是空还是满，push()加入队列 pop()弹出队列

interface pusher
{
    function push($data);
}
#require 'redisconn.php';
class mypusher implements pusher
{
    protected $mychannel;
    protected $size=10;
    public function __construct()
    {
        $this->mychannel = new Swoole\Coroutine\Channel(10);
        $this->mylen = $this->mychannel->length();
        echo "容量".$this->mychannel->capacity.PHP_EOL;
    }

    public function push($data)
    {
        if ($this->mychannel->isFull())
        {
            return 0;
        }
        else{
            //发送通知
            $this->mychannel->push($data);
            echo "当前元素个数".$this->mychannel->length();
            return 1;
        }
    }

    public function pop()
    {
        if($this->mychannel->isEmpty())
        {
            return 0;
        }
        else
        {
            echo "当前元素个数".$this->mychannel->length().PHP_EOL;
            var_dump($this->mychannel->pop());
            echo PHP_EOL."还剩元素个数".$this->mychannel->length().PHP_EOL;
            return 1;
        }
    }
}
go(function (){
    $thispusher = new mypusher();
    $thispusher->push(['name'=>'cj','age'=>20]);
    $thispusher->push(['name'=>'cpc','age'=>22]);
    $thispusher->push(['name'=>'xxd','age'=>40]);
    $thispusher->pop();
    $thispusher->pop();
    $thispusher->pop();

});

测试结果：

容量10
当前元素个数1当前元素个数2当前元素个数3当前元素个数3
array(2) {
  ["name"]=>
  string(2) "cj"
  ["age"]=>
  int(20)
}

还剩元素个数2
当前元素个数2
array(2) {
  ["name"]=>
  string(3) "cpc"
  ["age"]=>
  int(22)
}

还剩元素个数1
当前元素个数1
array(2) {
  ["name"]=>
  string(3) "xxd"
  ["age"]=>
  int(40)
}

还剩元素个数0

• 实现一个redis连接池

class redispool
{
    protected $mypool;
    public function __construct($size)
    {
        $this->mypool = new Swoole\Coroutine\Channel($size);
        for ($i=0;$i<$size;$i++)
        {
            $redis = new Swoole\Coroutine\Redis();
            $redis->setOptions(['compatibility_mode' => true]);
            $rconn = $redis->connect('127.0.0.1',6379);
            if ($rconn == false)
            {
                throw new \http\Exception\RuntimeException('Damn~ fail to connet redis-server');
            }
            else{
                $this->mypool->push($redis);
            }
        }
    }

    public function push($redis)
    {
        $this->mypool->push($redis);
    }
    public function pop()
    {
        return $this->mypool->pop();
    }
}