Swoole 개발 사례: 동시 요청의 메모리 소비를 최적화하는 방법

<?php

use SwooleCoroutine;

Coroutine::create(function () {
    // 协程内的代码逻辑
});

<?php

use SwooleCoroutineScheduler;

$scheduler = new Scheduler();
$scheduler->add(function () {
    // 协程1
});

$scheduler->add(function () {
    // 协程2
});

$scheduler->start();

<?php

use SwooleCoroutineChannel;

$poolSize = 10;
$channel = new Channel($poolSize);

for ($i = 0; $i < $poolSize; $i++) {
    // 创建协程对象并加入协程池
    $channel->push(new Coroutine(function () {
        // 协程内的代码逻辑
    }));
}

// 从协程池中取出一个协程对象并执行
$coroutine = $channel->pop();
$coroutine->resume();

// 将协程对象归还到协程池中
$channel->push($coroutine);

<?php

use SwooleTable;

$table = new Table(1024);
$table->column('value', Table::TYPE_STRING, 1024);
$table->create();

// 从内存缓存中获取数据
$value = $table->get('key')['value'];
if ($value === false) {
    // 如果缓存中不存在该数据，则从文件中获取数据
    $value = file_get_contents('file.txt');
    // 将数据保存到内存缓存中
    $table->set('key', ['value' => $value]);
}

<?php

$server = new SwooleServer('0.0.0.0', 9501, SWOOLE_PROCESS, SWOOLE_SOCK_TCP);
$server->set([
    'worker_num' => 4,
    'enable_reuse_port' => true,
]);
$server->on('receive', function ($server, $fd, $reactor_id, $data) {
    $server->send($fd, 'Hello, World!');
});
$server->start();

<?php

use SwooleCoroutineChannel;

class Connection
{
    public function __construct()
    {
        // 进行一些初始化操作
    }

    public function release()
    {
        // 将对象归还到对象池中
        Pool::getInstance()->push($this);
    }

    // 其他方法
}

class Pool
{
    private static $instance;
    private $pool;
    private $poolSize = 10;

    private function __construct()
    {
        $this->pool = new Channel($this->poolSize);
        for ($i = 0; $i < $this->poolSize; $i++) {
            $this->pool->push(new Connection());
        }
    }

    public function pop()
    {
        return $this->pool->pop();
    }

    public function push(Connection $connection)
    {
        $this->pool->push($connection);
    }

    public static function getInstance()
    {
        if (self::$instance === null) {
            self::$instance = new self();
        }

        return self::$instance;
    }
}

// 从对象池中获取一个连接对象
$connection = Pool::getInstance()->pop();

// 使用连接对象
$connection->doSomething();

// 将连接对象归还到对象池中
$connection->release();