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wangduanduan committed Dec 22, 2024
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</image>
<generator>Hugo -- gohugo.io</generator>
<language>en</language>
<lastBuildDate>Sun, 22 Dec 2024 16:20:42 +0800</lastBuildDate><atom:link href="https://wdd.js.org/categories/all/index.xml" rel="self" type="application/rss+xml" />
<lastBuildDate>Sun, 22 Dec 2024 18:07:08 +0800</lastBuildDate><atom:link href="https://wdd.js.org/categories/all/index.xml" rel="self" type="application/rss+xml" />
<item>
<title>DMQ模块源码学习笔记</title>
<link>https://wdd.js.org/kamailio/dmq-note/</link>
<pubDate>Sun, 22 Dec 2024 18:07:08 +0800</pubDate>

<guid>https://wdd.js.org/kamailio/dmq-note/</guid>
<description>背景 多个SIP注册服务器之间，如何同步分机的注册信息呢？
简单的方案就是使用共享数据库的方式同步注册信息，这个方案实现起来简单，但是分机的注册信息本身就是个需要频繁增删改查的，数据库很可能在大量注册分机的压力下，成为性能的瓶颈。
除了数据库之外，OpenSIPS和kamailio分别提供了不同的方案。
OpenSIPS提供的方案是使用cluster模块，cluster模块在多个实例之间同步分机的注册信息，注册信息的格式是OpenSIPS自定义的格式。 Kamailio的方案是DMQ模块， DMQ听起来高大上，放佛是依赖外部的一个服务。 但它其实就是扩展SIP消息，通过SIP消息来广播分机的注册信息。
KDMQ sip:[email protected]:5090 SIP/2.0 Via: SIP/2.0/UDP 192.168.40.15;branch=z9hG4bK55e5.423d95110000 To: &amp;lt;sip:[email protected]:5090&amp;gt; From: &amp;lt;sip:[email protected]:5060&amp;gt;;tag=2cdb7a33a7f21abb98fd3a44968e3ffd-5b01 CSeq: 10 KDMQ Call-ID: [email protected] Content-Length: 116 User-Agent: kamailio (4.3.0 (x86_64/linneaus)) Max-Forwards: 1 Content-Type: text/plain sip:192.168.40.16:5060;status=active sip:192.168.40.15:5060;status=disabled sip:192.168.40.17:5060;status=active 源码分析 该模块一共暴露了8个参数，其中7个参数都是简单类型，INT和STR，就直接取对应变量的地址就可以了。
其中notification_address参数是用来配置集群中其他节点的通信地址的，因为要配置多次，所以需要用一个函数来解析。
// dmq.c static param_export_t params[] = { {&amp;#34;num_workers&amp;#34;, PARAM_INT, &amp;amp;dmq_num_workers}, {&amp;#34;ping_interval&amp;#34;, PARAM_INT, &amp;amp;dmq_ping_interval}, {&amp;#34;server_address&amp;#34;, PARAM_STR, &amp;amp;dmq_server_address}, {&amp;#34;server_socket&amp;#34;, PARAM_STR, &amp;amp;dmq_server_socket}, {&amp;#34;notification_address&amp;#34;, PARAM_STR|PARAM_USE_FUNC, dmq_add_notification_address}, {&amp;#34;notification_channel&amp;#34;, PARAM_STR, &amp;amp;dmq_notification_channel}, {&amp;#34;multi_notify&amp;#34;, PARAM_INT, &amp;amp;dmq_multi_notify}, {&amp;#34;worker_usleep&amp;#34;, PARAM_INT, &amp;amp;dmq_worker_usleep}, {0, 0, 0} }; 这些参数都没有加上static关键词，主要目的为了在dmq模块的其他c文件能使用。</description>
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<item>
<title>路由执行的顺序</title>
<link>https://wdd.js.org/kamailio/msg-flow/</link>
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<!doctype html><html lang=en dir=auto><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge"><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=robots content="index, follow"><title>all | 洞香春</title><meta name=keywords content><meta name=description content="Eddie Wang的个人博客"><meta name=author content="Eddie Wang"><link rel=canonical href=https://wdd.js.org/categories/all/><link crossorigin=anonymous href=/assets/css/stylesheet.6d3944e058d85363bbe8a792a9b5f40002bca80be859dc19c466dd8de223973e.css integrity="sha256-bTlE4FjYU2O76KeSqbX0AAK8qAvoWdwZxGbdjeIjlz4=" rel="preload stylesheet" as=style><link rel=icon href=https://wdd.js.org/cowboy.ico><link rel=icon type=image/png sizes=16x16 href=https://wdd.js.org/cowboy.ico><link rel=icon type=image/png sizes=32x32 href=https://wdd.js.org/cowboy.ico><link rel=apple-touch-icon href=https://wdd.js.org/cowboy.ico><link rel=mask-icon href=https://wdd.js.org/cowboy.ico><meta name=theme-color content="#2e2e33"><meta name=msapplication-TileColor content="#2e2e33"><link rel=alternate type=application/rss+xml href=https://wdd.js.org/categories/all/index.xml><noscript><style>#theme-toggle,.top-link{display:none}</style></noscript><meta property="og:title" content="all"><meta property="og:description" content="Eddie Wang的个人博客"><meta property="og:type" content="website"><meta property="og:url" content="https://wdd.js.org/categories/all/"><meta property="og:image" content="https://wdd.js.org/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E"><meta property="og:site_name" content="洞香春"><meta name=twitter:card content="summary_large_image"><meta name=twitter:image content="https://wdd.js.org/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E"><meta name=twitter:title content="all"><meta name=twitter:description content="Eddie Wang的个人博客"></head><body class=list id=top><script>localStorage.getItem("pref-theme")==="dark"&&document.body.classList.add("dark")</script><header class=header><nav class=nav><div class=logo><a href=https://wdd.js.org accesskey=h title="洞香春 (Alt + H)"><img src=https://wdd.js.org/cowboy.ico alt aria-label=logo height=35>洞香春</a><div class=logo-switches><button id=theme-toggle accesskey=t title="(Alt + T)"><svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg><svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></button></div></div><ul id=menu><li><a href=https://wdd.js.org/books/ title=百分之一阅读法><span>百分之一阅读法</span></a></li><li><a href=https://wdd.js.org/freeswitch/ title=FreeSWITCH><span>FreeSWITCH</span></a></li><li><a href=https://wdd.js.org/golang/ title=Golang><span>Golang</span></a></li><li><a href=https://wdd.js.org/kamailio/ title=Kamailio><span>Kamailio</span></a></li><li><a href=https://wdd.js.org/network/ title=Network><span>Network</span></a></li><li><a href=https://wdd.js.org/opensips/ title=OpenSIPS><span>OpenSIPS</span></a></li><li><a href=https://wdd.js.org/vim/ title=VIM><span>VIM</span></a></li><li><a href=https://wdd.js.org/categories/ title=分类><span>分类</span></a></li><li><a href=https://wdd.js.org/fe/ title=前端><span>前端</span></a></li><li><a href=https://wdd.js.org/search/ title=搜索><span>搜索</span></a></li><li><a href=https://wdd.js.org/tags/ title=标签><span>标签</span></a></li><li><a href=https://wdd.js.org/archives/ title=归档><span>归档</span></a></li><li><a href=https://wdd.js.org/about/ title=我><span>我</span></a></li></ul></nav></header><main class=main><header class=page-header><div class=breadcrumbs><a href=https://wdd.js.org>Home</a>&nbsp;»&nbsp;<a href=https://wdd.js.org/categories/>Categories</a></div><h1>all</h1></header><article class="post-entry tag-entry"><header class=entry-header><h2>西安之旅 不仅有羊肉泡馍 也有长恨歌</h2></header><div class=entry-content><p>一年过半以后，偶然打开微信公众号，看到草稿箱里的篇文章。我才回想起去年带女友去西安的那个遥远的夏天。
<!doctype html><html lang=en dir=auto><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge"><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=robots content="index, follow"><title>all | 洞香春</title><meta name=keywords content><meta name=description content="Eddie Wang的个人博客"><meta name=author content="Eddie Wang"><link rel=canonical href=https://wdd.js.org/categories/all/><link crossorigin=anonymous href=/assets/css/stylesheet.6d3944e058d85363bbe8a792a9b5f40002bca80be859dc19c466dd8de223973e.css integrity="sha256-bTlE4FjYU2O76KeSqbX0AAK8qAvoWdwZxGbdjeIjlz4=" rel="preload stylesheet" as=style><link rel=icon href=https://wdd.js.org/cowboy.ico><link rel=icon type=image/png sizes=16x16 href=https://wdd.js.org/cowboy.ico><link rel=icon type=image/png sizes=32x32 href=https://wdd.js.org/cowboy.ico><link rel=apple-touch-icon href=https://wdd.js.org/cowboy.ico><link rel=mask-icon href=https://wdd.js.org/cowboy.ico><meta name=theme-color content="#2e2e33"><meta name=msapplication-TileColor content="#2e2e33"><link rel=alternate type=application/rss+xml href=https://wdd.js.org/categories/all/index.xml><noscript><style>#theme-toggle,.top-link{display:none}</style></noscript><meta property="og:title" content="all"><meta property="og:description" content="Eddie Wang的个人博客"><meta property="og:type" content="website"><meta property="og:url" content="https://wdd.js.org/categories/all/"><meta property="og:image" content="https://wdd.js.org/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E"><meta property="og:site_name" content="洞香春"><meta name=twitter:card content="summary_large_image"><meta name=twitter:image content="https://wdd.js.org/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E"><meta name=twitter:title content="all"><meta name=twitter:description content="Eddie Wang的个人博客"></head><body class=list id=top><script>localStorage.getItem("pref-theme")==="dark"&&document.body.classList.add("dark")</script><header class=header><nav class=nav><div class=logo><a href=https://wdd.js.org accesskey=h title="洞香春 (Alt + H)"><img src=https://wdd.js.org/cowboy.ico alt aria-label=logo height=35>洞香春</a><div class=logo-switches><button id=theme-toggle accesskey=t title="(Alt + T)"><svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg><svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></button></div></div><ul id=menu><li><a href=https://wdd.js.org/books/ title=百分之一阅读法><span>百分之一阅读法</span></a></li><li><a href=https://wdd.js.org/freeswitch/ title=FreeSWITCH><span>FreeSWITCH</span></a></li><li><a href=https://wdd.js.org/golang/ title=Golang><span>Golang</span></a></li><li><a href=https://wdd.js.org/kamailio/ title=Kamailio><span>Kamailio</span></a></li><li><a href=https://wdd.js.org/network/ title=Network><span>Network</span></a></li><li><a href=https://wdd.js.org/opensips/ title=OpenSIPS><span>OpenSIPS</span></a></li><li><a href=https://wdd.js.org/vim/ title=VIM><span>VIM</span></a></li><li><a href=https://wdd.js.org/categories/ title=分类><span>分类</span></a></li><li><a href=https://wdd.js.org/fe/ title=前端><span>前端</span></a></li><li><a href=https://wdd.js.org/search/ title=搜索><span>搜索</span></a></li><li><a href=https://wdd.js.org/tags/ title=标签><span>标签</span></a></li><li><a href=https://wdd.js.org/archives/ title=归档><span>归档</span></a></li><li><a href=https://wdd.js.org/about/ title=我><span>我</span></a></li></ul></nav></header><main class=main><header class=page-header><div class=breadcrumbs><a href=https://wdd.js.org>Home</a>&nbsp;»&nbsp;<a href=https://wdd.js.org/categories/>Categories</a></div><h1>all</h1></header><article class="post-entry tag-entry"><header class=entry-header><h2>Pdf学习资料</h2></header><div class=entry-content><p>TelNYX.pdf OpenSIPS 2.3 mediasoup Cutting Edge WebRTC Video COnferencing FreeSWITCH-driven routing in OpenSIPS Voicenter: Contact center on Steroids Vlad_Paiu-Distributed_OpenSIPS_Systems_Cluecon14.pdf Vlad_Paiu-OpenSIPS_Summit_Austin_2015-Async.pdf Ionut_Ionita-OpenSIPS_Summit2017-Capturing_beyond_SIP FLAVIO_GONCALVES-Fraud_in_VoIP_Today.pdf Alexandr_Dubovikov-OpenSIPS_Summit2017-RTC_Threat_Intelligence_Exchange.pdf OpenSIPS_LoadBalancing.pdf Vlad_Paiu-OpenSIPS_Summit_2104-OpenSIPS_End_User_Services.pdf Razvan_Crainea-OpenSIPS_Summit2017-From_SIPI_Trunks_to_End_Users.pdf Razvan_Crainea-OpenSIPS_Summit-Scaling_Asterisk.pdf Vlad_Paiu-OpenSIPS_Summit-Service_Enabling_for_Asterisk.pdf Jonas_Borjesson-OpenSIPS_Summit_Austin_2015.pdf Michele_Pinasi-OpenSIPS_Summit2017-How_we_did_VoIP.pdf Bogdan_Iancu-OpenSIPS_Summit_Keynotes.pdf Giovanni_Maruzselli-OpenSIPS_Summit2017-Scaling_FreeSWITCHes.pdf Maksym_Sobolyev-OpenSIPS_Summit2017-Sippy_Labs_update.pdf docker-cluster.pdf voip malware attack tool .pdf Bogdan_Iancu-OpenSIPS_Summit-OpenSIPS_2_1.pdf Pete_Kelly-OpenSIPS_Workshop_Chicago_2015-Calling_Cards_B2BUA.pdf Bogdan_Iancu-OpenSIPS_Summit-keynotes.pdf Alex_Goulis-Opensips_CNAME.pdf OpenSIPS_2.0_Framework.pdf Norman_Brandinger-OpenSIPS_Summit_2014-Advanced_SIP_Routing_with_OpenSIPS_modules.pdf</p></div><footer class=entry-footer><span title='2022-12-03 16:02:18 +0800 CST'>2022-12-03 16:02:18</span>&nbsp;·&nbsp;1 min&nbsp;·&nbsp;Eddie Wang</footer><a class=entry-link aria-label="post link to Pdf学习资料" href=https://wdd.js.org/opensips/pdf/></a></article><article class="post-entry tag-entry"><header class=entry-header><h2>西安之旅 不仅有羊肉泡馍 也有长恨歌</h2></header><div class=entry-content><p>一年过半以后，偶然打开微信公众号，看到草稿箱里的篇文章。我才回想起去年带女友去西安的那个遥远的夏天。
如今女友已经变成老婆，这篇文章我才想起来发表。
day 1 钟楼 鼓楼 回民街 那是六月末的时候，和女友一起坐火车去了趟西安。
为什么要去西安呢？据吃货女友说，西安有非常多的好吃的。所以人生是必须要去一趟的。
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