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siushin2025-08-15
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Swoole笔记 ​

运行流程图 ​

运行流程图

进程 / 线程结构图 ​

进程 / 线程结构图

swoole安装 ​

通过 PECL 安装 Swoole：

shell
➜  ~ pecl install -D enable-openssl="yes --with-openssl-dir=/opt/homebrew/opt/openssl@3" 'enable-sockets="no" enable-http2="yes" enable-mysqlnd="no" enable-swoole-json="yes" enable-swoole-curl="yes" enable-cares="no"' swoole
➜  ~ brew services restart php

【安装成功】：

shell
➜  ~ php --ri swoole

swoole

Swoole => enabled
Author => Swoole Team <team@swoole.com>
Version => 5.1.0
Built => Oct  8 2023 00:09:22
coroutine => enabled with boost asm context
kqueue => enabled
rwlock => enabled
openssl => OpenSSL 3.1.3 19 Sep 2023
dtls => enabled
http2 => enabled
json => enabled
curl-native => enabled
pcre => enabled
zlib => 1.2.12
async_redis => enabled

Directive => Local Value => Master Value
swoole.enable_coroutine => On => On
swoole.enable_library => On => On
swoole.enable_fiber_mock => Off => Off
swoole.enable_preemptive_scheduler => Off => Off
swoole.display_errors => On => On
swoole.use_shortname => On => On
swoole.unixsock_buffer_size => 262144 => 262144

安装报错常见问题 ​

缺少声明openssl安装路径 ​

shell
/private/tmp/pear/temp/swoole/include/swoole_ssl.h:27:10: fatal error: 'openssl/ssl.h' file not found
#include <openssl/ssl.h>
         ^~~~~~~~~~~~~~~
2 errors generated.
  1. 查看openssl的安装路径

【方法一】

shell
➜  ~ openssl version -a | grep "OPENSSLDIR"
OPENSSLDIR: "/opt/homebrew/etc/openssl@3"

【方法二】

shell
➜  ~ brew --prefix openssl
/opt/homebrew/opt/openssl@3

【方法三】

shell
➜  ~ openssl version -a
OpenSSL 3.1.2 1 Aug 2023 (Library: OpenSSL 3.1.2 1 Aug 2023)
built on: Tue Aug  1 13:36:55 2023 UTC
platform: darwin64-arm64-cc
options:  bn(64,64)
compiler: clang -fPIC -arch arm64 -O3 -Wall -DL_ENDIAN -DOPENSSL_PIC -D_REENTRANT -DOPENSSL_BUILDING_OPENSSL -DNDEBUG
OPENSSLDIR: "/opt/homebrew/etc/openssl@3"
ENGINESDIR: "/opt/homebrew/Cellar/openssl@3/3.1.2/lib/engines-3"
MODULESDIR: "/opt/homebrew/Cellar/openssl@3/3.1.2/lib/ossl-modules"
Seeding source: os-specific
CPUINFO: OPENSSL_armcap=0x87d
  1. 在 pecl 安装 swoole 时，带上参数 enable-openssl="yes --with-openssl-dir=/opt/homebrew/etc/openssl@3"

解决pcre2.h not found ​

先安装pcre2

shell
brew install pcre2

pcre软连接

shell
ln -s /opt/homebrew/Cellar/pcre2/10.45/include/pcre2.h /opt/homebrew/Cellar/php@8.3/8.3.20/include/php/ext/pcre/pcre2.h

确认pcre软连接是否成功

shell
cd /opt/homebrew/Cellar/php@8.3/8.3.20/include/php/ext/pcre/
ls
pcre2.h    php_pcre.h

tcpdump抓包 ​

shell
➜  swoole sudo tcpdump -i lo0 host 127.0.0.1 and port 9501 -w ~/course.pcap
Password:
tcpdump: listening on lo0, link-type NULL (BSD loopback), snapshot length 524288 bytes
18 packets captured
152 packets received by filter
0 packets dropped by kernel
  • 使用Wireshark查看course.pcap，结果如下：

course.pcap

  • 读取管道（如内置函数：popen、proc_open函数(双向管道，标准输入、标准输出)），就是进程之间通讯的一种方式

defer ​

先进后出原则（入栈，出栈），逆向（倒序）执行。

php
go(function () {
    mkdir('/tmp/tmp');
    defer(function () {
        rmdir('/tmp/tmp');
    });
    file_put_contents('/tmp/tmp/tmp.tmp', time());
    defer(function () {
        unlink('/tmp/tmp/tmp.tmp');
    });
});

区分php内置函数： register_shutdown_function() 会顺序执行，把 defer() 改为前者，会报错。

php
go(function () {
    defer(function () {
        echo 1.PHP_EOL;
   });
    defer(function () {
        echo 2.PHP_EOL;
   });
    defer(function () {
        echo 3.PHP_EOL;
   });
});
# 输出：
3
2
1

关于FPM ​

FPM下所有的连接都是短连接（pconnect除外），单例也是短连接！

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