Swoole RPC 的实现

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Swoole RPC 的实现

文章实现了一个简单的 RPC 远程调用，在实现之前需要先了解什么是 RPC，不清楚的可以看下之前发的这篇文章 《我眼中的 RPC》。

HTTP 请求

//代码片段
<?php
$demo = [
'type' => 'SW',
'token' => 'Bb1R3YLipbkTp5p0',
'param' => [
'class' => 'Order',
'method' => 'get_list',
'param' => [
'uid' => 1,
'type' => 2,
],
],
];
$ch = curl_init();
$options = [
CURLOPT_URL => 'http://10.211.55.4:9509/',
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => json_encode($demo),
];
curl_setopt_array($ch, $options);
curl_exec($ch);
curl_close($ch);

//代码片段
$demo = [
'type' => 'SW',
'token' => 'Bb1R3YLipbkTp5p0',
'param' => [
'class' => 'Order',
'method' => 'get_list',
'param' => [
'uid' => 1,
'type' => 2,
],
],
];
$this->client->send(json_encode($demo));

请求方式
SW 单个请求，等待结果

发出请求后，分配给 Task ，并等待 Task 执行完成后，再返回。

SN 单个请求，不等待结果

发出请求后，分配给 Task 之后，就直接返回。

发送数据

$demo = [

'type' => 'SW',

'token' => 'Bb1R3YLipbkTp5p0',

'param' => [

'class' => 'Order',

'method' => 'get_list',

'param' => [

'uid' => 1,

'type' => 2,

],

],

];

 

request_method 请求方式

request_time 请求开始时间

response_time 请求结束时间

code 标识

msg 标识值

data 约定数据

query 请求参数

代码
OnRequest.php

<?php

if (!defined('SERVER_PATH')) exit("No Access");

class OnRequest
{
private static $query;
private static $code;
private static $msg;
private static $data;

public static function run($serv, $request, $response)
{
try {
$data = decrypt($request->rawContent());
self::$query = $data;
if (empty($data)) {
self::$code = '-1';
self::$msg = '非法请求';
self::end($request, $response);
}

//TODO 验证Token

switch ($data['type']) {
case 'SW': //单个请求,等待结果
$task = [
'request' => $data,
'server' => 'http'
];
$rs = $serv->task(json_encode($task), -1, function ($serv, $task_id, $rs_data) use ($request, $response) {
self::$code = '1';
self::$msg = '成功';
self::$data = $rs_data['response'];
self::end($request, $response);
});
if ($rs === false) {
self::$code = '-1';
self::$msg = '失败';
self::end($request, $response);
}
break;

case 'SN': //单个请求,不等待结果
$task = [
'request' => $data,
'server' => 'http'
];
$rs = $serv->task(json_encode($task));
if ($rs === false) {
self::$code = '-1';
self::$msg = '失败';
} else {
self::$code = '1';
self::$msg = '成功';
}
self::end($request, $response);
break;
default:
self::$code = '-1';
self::$msg = '非法请求';
self::end($request, $response);
}
} catch(Exception $e) {
}
}

private static function end($request = null, $response = null)
{
$rs['request_method'] = $request->server['request_method'];
$rs['request_time'] = $request->server['request_time'];
$rs['response_time'] = time();
$rs['code'] = self::$code;
$rs['msg'] = self::$msg;
$rs['data'] = self::$data;
$rs['query'] = self::$query;
$response->end(json_encode($rs));
self::$data = [];
return;
}
}

OnReceive.php

<?php
if (!defined('SERVER_PATH')) exit("No Access");
class OnReceive
{
private static $request_time;
private static $query;
private static $code;
private static $msg;
private static $data;
public static function run($serv, $fd, $reactor_id, $data)
{
try {
self::$request_time = time();
$data = decrypt($data);
self::$query = $data;
//TODO 验证Token

switch ($data['type']) {
case 'SW': //单个请求,等待结果
$task = [
'fd' => $fd,
'request' => $data,
'server' => 'tcp',
'request_time' => self::$request_time,
];
$rs = $serv->task(json_encode($task));
if ($rs === false) {
self::$code = '-1';
self::$msg = '失败';
self::handlerTask($serv, $fd);
}
break;
case 'SN': //单个请求,不等待结果
$task = [
'fd' => $fd,
'request' => $data,
'server' => 'tcp',
'request_time' => self::$request_time,
];
$rs = $serv->task(json_encode($task));
if ($rs === false) {
self::$code = '-1';
self::$msg = '失败';
} else {
self::$code = '1';
self::$msg = '成功';
}
self::handlerTask($serv, $fd);
break;
default:
self::$code = '-1';
self::$msg = '非法请求';
self::handlerTask($serv, $fd);
}
} catch(Exception $e) {
}
}
private static function handlerTask($serv, $fd)
{
$rs['request_method'] = 'TCP';
$rs['request_time'] = self::$request_time;
$rs['response_time'] = time();
$rs['code'] = self::$code;
$rs['msg'] = self::$msg;
$rs['data'] = self::$data;
$rs['query'] = self::$query;
$serv->send($fd, json_encode($rs));
}
}