Implement custom protocol parsing in Workerman documents
Nov 08, 2023 pm 06:25 PM
Implementing custom protocol parsing in Workerman documents
When using the Workerman framework for network programming, we often need to interact with the client for data. In the process of data interaction, we often encounter situations that require custom protocols. The Workerman framework provides a convenient way to easily parse custom protocols.
First, we need to define our own protocol format. Generally speaking, the protocol format includes two parts: data packet header and data packet body. The data packet header is used to describe some basic information of the data packet, such as length, type, etc.; the data packet body is the actual transmitted data content.
Next, we need to implement the code for protocol parsing. First, in the Workerman framework, we need to receive the client's connection request by creating a Worker. You can refer to the following code example:
use WorkermanWorker;
// 創(chuàng)建一個(gè)Worker監(jiān)聽(tīng)127.0.0.1:8000端口
$worker = new Worker('tcp://127.0.0.1:8000');
// 當(dāng)客戶端連接上來(lái)時(shí)
$worker->onConnect = function ($connection) {
echo "New connection from ip " . $connection->getRemoteIp() . "
";
};
// 當(dāng)客戶端發(fā)來(lái)數(shù)據(jù)時(shí)
$worker->onMessage = function ($connection, $data) {
// 解析數(shù)據(jù)包
$package = parseProtocol($data);
// 處理數(shù)據(jù)包
handlePackage($connection, $package);
};
// 啟動(dòng)Worker
Worker::runAll();
// 解析數(shù)據(jù)包
function parseProtocol($data)
{
// 解析數(shù)據(jù)包的邏輯代碼
// 返回解析后的數(shù)據(jù)包
return $package;
}
// 處理數(shù)據(jù)包
function handlePackage($connection, $package)
{
// 處理數(shù)據(jù)包的邏輯代碼
}In the above example code, we created a Worker of the TCP protocol and listened to the 127.0.0.1:8000 port. When the client connects, the IP address of the new connection will be printed. When the client sends data, the parseProtocol function is called to parse the data packet, and then the handlePackage function is called to process the data packet.
In actual development, we need to write specific parsing and processing logic according to our own protocol format. For example, if the protocol format is in the form of length data, you can refer to the following code example:
// 解析數(shù)據(jù)包
function parseProtocol($data)
{
$package = array();
$package['length'] = unpack('N', substr($data, 0, 4))[1];
$package['body'] = substr($data, 4);
return $package;
}
// 處理數(shù)據(jù)包
function handlePackage($connection, $package)
{
// 獲取數(shù)據(jù)包的長(zhǎng)度和內(nèi)容
$length = $package['length'];
$body = $package['body'];
// 處理數(shù)據(jù)包的邏輯代碼
// ...
}In the above code, we use the unpack function and substr function to parse the data packet. The specific analysis and processing logic can be written according to the actual situation.
Through the above sample code, we can see that it is very convenient to use the Workerman framework to implement custom protocol parsing. You only need to define the protocol format and write the corresponding parsing and processing logic. At the same time, the high performance and high reliability of the Workerman framework can also ensure the stable operation of the system. Hope this article helps you!
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