Swoole：PHP 协程框架
2020-03-27 15:45:11 来源：admin 点击：801
Swoole：PHP 协程框架
Swoole 使 PHP 开发人员可以编写高性能高并发的 TCP、UDP、Unix Socket、HTTP、 WebSocket 等服务，让 PHP 不再局限于 Web 领域。Swoole4 协程的成熟将 PHP 带入了前所未有的时期， 为性能的提升提供了独一无二的可能性。Swoole 可以广泛应用于互联网、移动通信、云计算、 网络游戏、物联网（IOT）、车联网、智能家居等领域。使用 PHP + Swoole 可以使企业 IT 研发团队的效率大大提升，更加专注于开发创新产品。
HttpServer
//高性能HTTP服务器
$http = new Swoole\Http\Server("127.0.0.1", 9501);
$http->on("start", function ($server) {
echo "Swoole http server is started at http://127.0.0.1:9501\n";
});
$http->on("request", function ($request, $response) {
$response->header("Content-Type", "text/plain");
$response->end("Hello World\n");
});
$http->start();Websocket Server
$server = new Swoole\Websocket\Server("127.0.0.1", 9502);
$server->on('open', function($server, $req) {
echo "connection open: {$req->fd}\n";
});
$server->on('message', function($server, $frame) {
echo "received message: {$frame->data}\n";
$server->push($frame->fd, json_encode(["hello", "world"]));
});
$server->on('close', function($server, $fd) {
echo "connection close: {$fd}\n";
});
$server->start();Tcp Server
$server = new Swoole\Server("127.0.0.1", 9503);
$server->on('connect', function ($server, $fd){ echo "connection open: {$fd}\n";
});
$server->on('receive', function ($server, $fd, $reactor_id, $data) {
$server->send($fd, "Swoole: {$data}");
$server->close($fd);
});
$server->on('close', function ($server, $fd) { echo "connection close: {$fd}\n";
});
$server->start();Udp Server
$serv = new Swoole\Server("127.0.0.1", 9502, SWOOLE_PROCESS, SWOOLE_SOCK_UDP); //监听数据接收事件
$serv->on('Packet', function ($serv, $data, $clientInfo) {
$serv->sendto($clientInfo['address'], $clientInfo['port'], "Server ".$data);
var_dump($clientInfo);
}); //启动服务器
$serv->start();Task
$server = new Swoole\Server("127.0.0.1", 9502);
$server->set(array('task_worker_num' => 4));
$server->on('receive', function($server, $fd, $reactor_id, $data) {
$task_id = $server->task("Async"); echo "Dispatch AsyncTask: [id=$task_id]\n";
});
$server->on('task', function ($server, $task_id, $reactor_id, $data) {
echo "New AsyncTask[id=$task_id]\n";
$server->finish("$data -> OK");
});
$server->on('finish', function ($server, $task_id, $data) {
echo "AsyncTask[$task_id] finished: {$data}\n";
});
$server->start();coroutine
//睡眠 1 万次，读取，写入，检查和删除文件 1 万次，使用 PDO 和 MySQLi 与数据库通信 1 万次，
创建 TCP 服务器和多个客户端相互通信 1 万次，
//创建 UDP 服务器和多个客户端到相互通信 1 万次...... 一切都在一个进程一秒内完美完成！
Swoole\Runtime::enableCoroutine();//此行代码后，文件操作，sleep，Mysqli，PDO，
streams等都变成异步IO，见文档'一键协程化'章节
$s = microtime(true);
//Co/run()见文档'协程容器'章节
Co\run(function() {
// i just want to sleep...
for ($c = 100; $c--;) {
go(function () {
for ($n = 100; $n--;) {
usleep(1000);
}
});
}
// 10k file read and write
for ($c = 100; $c--;) {
go(function () use ($c) {
$tmp_filename = "/tmp/test-{$c}.php";
for ($n = 100; $n--;) {
$self = file_get_contents(__FILE__);
file_put_contents($tmp_filename, $self);
assert(file_get_contents($tmp_filename) === $self);
}
unlink($tmp_filename);
});
}
// 10k pdo and mysqli read
for ($c = 50; $c--;) {
go(function () {
$pdo = new PDO('mysql:host=127.0.0.1;dbname=test;charset=utf8', 'root', 'root');
$statement = $pdo->prepare('SELECT * FROM `user`');
for ($n = 100; $n--;) {
$statement->execute();
assert(count($statement->fetchAll()) > 0);
}
});
}
for ($c = 50; $c--;) {
go(function () {
$mysqli = new Mysqli('127.0.0.1', 'root', 'root', 'test');
$statement = $mysqli->prepare('SELECT `id` FROM `user`');
for ($n = 100; $n--;) {
$statement->bind_result($id);
$statement->execute();
$statement->fetch();
assert($id > 0);
}
});
}
// php_stream tcp server & client with 12.8k requests in single process
function tcp_pack(string $data): string
{
return pack('n', strlen($data)) . $data;
}
function tcp_length(string $head): int
{
return unpack('n', $head)[1];
}
go(function () {
$ctx = stream_context_create(['socket' => ['so_reuseaddr' => true, 'backlog' => 128]]);
$socket = stream_socket_server(
'tcp://0.0.0.0:9502',
$errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctx
);
if (!$socket) {
echo "$errstr ($errno)\n";
} else {
$i = 0;
while ($conn = stream_socket_accept($socket, 1)) {
stream_set_timeout($conn, 5);
for ($n = 100; $n--;) {
$data = fread($conn, tcp_length(fread($conn, 2)));
assert($data === "Hello Swoole Server #{$n}!");
fwrite($conn, tcp_pack("Hello Swoole Client #{$n}!"));
}
if (++$i === 128) {
fclose($socket);
break;
}
}
}
});
for ($c = 128; $c--;) {
go(function () {
$fp = stream_socket_client("tcp://127.0.0.1:9502", $errno, $errstr, 1);
if (!$fp) {
echo "$errstr ($errno)\n";
} else {
stream_set_timeout($fp, 5);
for ($n = 100; $n--;) {
fwrite($fp, tcp_pack("Hello Swoole Server #{$n}!"));
$data = fread($fp, tcp_length(fread($fp, 2)));
assert($data === "Hello Swoole Client #{$n}!");
}
fclose($fp);
}
});
}
// udp server & client with 12.8k requests in single process
go(function () {
$socket = new Swoole\Coroutine\Socket(AF_INET, SOCK_DGRAM, 0);
$socket->bind('127.0.0.1', 9503);
$client_map = [];
for ($c = 128; $c--;) {
for ($n = 0; $n < 100; $n++) {
$recv = $socket->recvfrom($peer);
$client_uid = "{$peer['address']}:{$peer['port']}";
$id = $client_map[$client_uid] = ($client_map[$client_uid] ?? -1) + 1;
assert($recv === "Client: Hello #{$id}!");
$socket->sendto($peer['address'], $peer['port'], "Server: Hello #{$id}!");
}
}
$socket->close();
});
for ($c = 128; $c--;) {
go(function () {
$fp = stream_socket_client("udp://127.0.0.1:9503", $errno, $errstr, 1);
if (!$fp) {
echo "$errstr ($errno)\n";
} else {
for ($n = 0; $n < 100; $n++) {
fwrite($fp, "Client: Hello #{$n}!");
$recv = fread($fp, 1024);
list($address, $port) = explode(':', (stream_socket_get_name($fp, true)));
assert($address === '127.0.0.1' && (int)$port === 9503);
assert($recv === "Server: Hello #{$n}!");
}
fclose($fp);
}
});
}
});
echo 'use ' . (microtime(true) - $s) . ' s';channel
Co\run(function(){
//使用Channel进行协程间通讯
$chan = new Swoole\Coroutine\Channel(1);
Swoole\Coroutine::create(function () use ($chan) {
for($i = 0; $i < 100000; $i++) {
co::sleep(1.0);
$chan->push(['rand' => rand(1000, 9999), 'index' => $i]);
echo "$i\n";
}
});
Swoole\Coroutine::create(function () use ($chan) {
while(1) {
$data = $chan->pop();
var_dump($data);
}
});
});