How to set the process name in swoole

Swoole is a network communication framework based on PHP language. It has the characteristics of high performance and high concurrency. It is widely used in Web back-end development, game server development, microservices and other fields. When using Swoole, we often need to understand various configuration items. One of the more commonly used configurations is the process name.

The process name refers to the process name displayed in the operating system, which together with the process ID (PID) can easily distinguish different processes. In Swoole, we can achieve this purpose by setting the process name. This article will introduce how to set the process name in Swoole.

1. What is a process name

In the Linux operating system, the process name is the process name displayed in the ps command. Through the process name, we can easily distinguish different processes.

For example, we ran two PHP files, the file names are a.php and b.php respectively, and their corresponding process names are php a.php and php b.php respectively. In this way, we can view the process information through the ps command to ensure that the two processes are running normally.

2. Method of setting the process name

In Swoole, there are two ways to set the process name: using the set_process_name function provided by Swoole and using the cli_set_process_title function of PHP. Next, we will introduce these two methods one by one.

1. Use the set_process_name function provided by Swoole

set_process_name is a function provided by Swoole for setting the process name. The function prototype is as follows:

bool swoole_set_process_name(string $name)

where $name is the name of the process to be set. After calling this function, the name of the current process will become $name.

The sample code is as follows:

<?php $server = new Swoole\Server("127.0.0.1", 9501);

//通过set_process_name设置进程名称
swoole_set_process_name("swoole-server");

//其他代码

In this sample code, we set the name of the current process to swoole-server through the swoole_set_process_name function. In this way, the process can be easily found when using the ps command to view process information.

2. Use PHP’s cli_set_process_title function

Another way to set the process name is to use PHP’s cli_set_process_title function. This function is used to modify the title of the process. The function prototype is as follows:

bool cli_set_process_title(string $title)

where $title is the process title to be set. After calling this function, the title of the current process will change to $title, thereby modifying the process name.

The sample code is as follows:

<?php $server = new Swoole\Server("127.0.0.1", 9501);

//通过cli_set_process_title设置进程名称
cli_set_process_title("swoole-server");

//其他代码

In this sample code, we set the name of the current process to swoole-server through the cli_set_process_title function. In this way, the process can be easily found when using the ps command to view process information.

3. Summary

This article introduces two methods of setting the process name in Swoole: using the set_process_name function provided by Swoole and using the cli_set_process_title function of PHP. No matter which method is used, you can easily modify the name of the process, making it easier to manage and view process information. In actual development, we can freely choose which method to use according to our needs.

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