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<link rel="alternate" hreflang="en-us" href="https://vuepress-theme-hope-docs-demo.netlify.app/en/dev/dev_comm.html"><meta property="og:url" content="https://vuepress-theme-hope-docs-demo.netlify.app/dev/dev_comm.html"><meta property="og:site_name" content="LiteyukiBot 轻雪机器人"><meta property="og:title" content="进程通信"><meta property="og:description" content="通道通信 简介 轻雪运行在主进程 MainProcess 里其他插件框架进程是伴随的子进程因此无法通过内存共享和直接对象传递的方式进行通信轻雪提供了一个通道Channel用于跨进程通信你可以通过Channel发送消息给其他进程也可以监听其他进程的消息。 例如子进程接收到用户信息需要重启机器人,这时可以通过通道对主进程发送消息,主进程接收到消息..."><meta property="og:type" content="article"><meta property="og:locale" content="zh-CN"><meta property="og:locale:alternate" content="en-US"><meta property="og:updated_time" content="2024-08-29T06:23:13.000Z"><meta property="article:modified_time" content="2024-08-29T06:23:13.000Z"><script type="application/ld+json">{"@context":"https://schema.org","@type":"Article","headline":"进程通信","image":[""],"dateModified":"2024-08-29T06:23:13.000Z","author":[]}</script><script src="/js/zh/get_data.js" type="module"></script><script src="/js/style.js" type="module"></script><link rel="icon" href="https://cdn.liteyuki.icu/favicon.ico"><link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/firacode/6.2.0/fira_code.min.css"><meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"><title>进程通信 | LiteyukiBot 轻雪机器人</title><meta name="description" content="通道通信 简介 轻雪运行在主进程 MainProcess 里其他插件框架进程是伴随的子进程因此无法通过内存共享和直接对象传递的方式进行通信轻雪提供了一个通道Channel用于跨进程通信你可以通过Channel发送消息给其他进程也可以监听其他进程的消息。 例如子进程接收到用户信息需要重启机器人,这时可以通过通道对主进程发送消息,主进程接收到消息...">
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<div id="app"><!--[--><!--[--><!--[--><span tabindex="-1"></span><a href="#main-content" class="vp-skip-link sr-only">跳至主要內容</a><!--]--><div class="theme-container has-toc"><!--[--><header id="navbar" class="vp-navbar"><div class="vp-navbar-start"><button type="button" class="vp-toggle-sidebar-button" title="Toggle Sidebar"><span class="icon"></span></button><!--[--><!----><!--]--><!--[--><a class="route-link vp-brand" href="/"><img class="vp-nav-logo" src="https://cdn.liteyuki.icu/static/img/liteyuki_icon_640.png" alt><!----><span class="vp-site-name hide-in-pad">LiteyukiBot 轻雪机器人</span></a><!--]--><!--[--><!----><!--]--></div><div class="vp-navbar-center"><!--[--><!----><!--]--><!--[--><nav class="vp-nav-links"><div class="nav-item hide-in-mobile"><a class="route-link nav-link" href="/" aria-label="首页"><span class="font-icon icon fa-fw fa-sm fas fa-home" style=""></span>首页<!----></a></div><div class="nav-item hide-in-mobile"><a class="route-link nav-link" href="/deploy/" aria-label="安装及部署"><!---->安装及部署<!----></a></div><div class="nav-item hide-in-mobile"><a class="route-link nav-link" href="/usage/" aria-label="使用及功能"><!---->使用及功能<!----></a></div><div class="nav-item hide-in-mobile"><a class="route-link nav-link" href="/store/" aria-label="资源及插件"><!---->资源及插件<!----></a></div><div class="nav-item hide-in-mobile"><a class="route-link nav-link active" href="/dev/" aria-label="开发及贡献"><!---->开发及贡献<!----></a></div></nav><!--]--><!--[--><!----><!--]--></div><div class="vp-navbar-end"><!--[--><!----><!--]--><!--[--><div class="nav-item"><div class="dropdown-wrapper i18n-dropdown"><button type="button" class="dropdown-title" aria-label="选择语言"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon i18n-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="i18n icon" style="width:1rem;height:1rem;vertical-align:middle;"><path d="M379.392 460.8 494.08 575.488l-42.496 102.4L307.2 532.48 138.24 701.44l-71.68-72.704L234.496 460.8l-45.056-45.056c-27.136-27.136-51.2-66.56-66.56-108.544h112.64c7.68 14.336 16.896 27.136 26.112 35.84l45.568 46.08 45.056-45.056C382.976 312.32 409.6 247.808 409.6 204.8H0V102.4h256V0h102.4v102.4h256v102.4H512c0 70.144-37.888 161.28-87.04 210.944L378.88 460.8zM576 870.4 512 1024H409.6l256-614.4H768l256 614.4H921.6l-64-153.6H576zM618.496 768h196.608L716.8 532.48 618.496 768z"></path></svg><!--]--><span class="arrow"></span><ul class="nav-dropdown"><li class="dropdown-item"><a class="route-link nav-link active" href="/dev/dev_comm.html" aria-label="简体中文"><!---->简体中文<!----></a></li><li class="dropdown-item"><a class="route-link nav-link" href="/en/dev/dev_comm.html" aria-label="English"><!---->English<!----></a></li></ul></button></div></div><div class="nav-item vp-repo"><a class="vp-repo-link" href="https://github.com/LiteyukiStudio/LiteyukiBot" target="_blank" rel="noopener noreferrer" aria-label="GitHub"><svg xmlns="http://www.w3.org/2000/svg" class="icon github-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="github icon" style="width:1.25rem;height:1.25rem;vertical-align:middle;"><path d="M511.957 21.333C241.024 21.333 21.333 240.981 21.333 512c0 216.832 140.544 400.725 335.574 465.664 24.49 4.395 32.256-10.07 32.256-23.083 0-11.69.256-44.245 0-85.205-136.448 29.61-164.736-64.64-164.736-64.64-22.315-56.704-54.4-71.765-54.4-71.765-44.587-30.464 3.285-29.824 3.285-29.824 49.195 3.413 75.179 50.517 75.179 50.517 43.776 75.008 114.816 53.333 142.762 40.79 4.523-31.66 17.152-53.377 31.19-65.537-108.971-12.458-223.488-54.485-223.488-242.602 0-53.547 19.114-97.323 50.517-131.67-5.035-12.33-21.93-62.293 4.779-129.834 0 0 41.258-13.184 134.912 50.346a469.803 469.803 0 0 1 122.88-16.554c41.642.213 83.626 5.632 122.88 16.554 93.653-63.488 134.784-50.346 134.784-50.346 26.752 67.541 9.898 117.504 4.864 129.834 31.402 34.347 50.474 78.123 50.474 131.67 0 188.586-114.73 230.016-224.042 242.09 17.578 15.232 33.578 44.672 33.578 90.454v135.85c0 13.142 7.936 27.
<span class="token keyword">from</span> liteyuki<span class="token punctuation">.</span>comm <span class="token keyword">import</span> get_channel<span class="token punctuation">,</span> Channel
<span class="token keyword">from</span> liteyuki <span class="token keyword">import</span> get_bot
<span class="token comment"># get_channel函数获取通道对象参数为调用set_channel时的通道标识</span>
channel_passive <span class="token operator">=</span> get_channel<span class="token punctuation">(</span><span class="token string">&quot;nonebot-passive&quot;</span><span class="token punctuation">)</span> <span class="token comment"># 获取被动通道</span>
channel_active <span class="token operator">=</span> get_channel<span class="token punctuation">(</span><span class="token string">&quot;nonebot-active&quot;</span><span class="token punctuation">)</span> <span class="token comment"># 获取主动通道</span>
liteyuki_bot <span class="token operator">=</span> get_bot<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment"># 注册一个函数在轻雪启动后运行</span>
<span class="token decorator annotation punctuation">@liteyuki_bot<span class="token punctuation">.</span>on_after_start</span>
<span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">send_data</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
<span class="token keyword">while</span> <span class="token boolean">True</span><span class="token punctuation">:</span>
channel_passive<span class="token punctuation">.</span>send<span class="token punctuation">(</span><span class="token string">&quot;I am liteyuki main process passive&quot;</span><span class="token punctuation">)</span>
channel_active<span class="token punctuation">.</span>send<span class="token punctuation">(</span><span class="token string">&quot;I am liteyuki main process active&quot;</span><span class="token punctuation">)</span>
<span class="token keyword">await</span> asyncio<span class="token punctuation">.</span>sleep<span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">)</span> <span class="token comment"># 每3秒发送一次消息</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>在子进程中例如NoneBot插件中</p></blockquote><div class="language-python line-numbers-mode" data-ext="py" data-title="py"><pre class="language-python"><code><span class="token keyword">from</span> nonebot <span class="token keyword">import</span> get_driver
<span class="token keyword">from</span> liteyuki<span class="token punctuation">.</span>comm <span class="token keyword">import</span> active_channel<span class="token punctuation">,</span> passive_channel <span class="token comment"># 子进程中获取通道直接导入进程全局单例即可</span>
<span class="token keyword">from</span> liteyuki<span class="token punctuation">.</span>log <span class="token keyword">import</span> logger
driver <span class="token operator">=</span> get_driver<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment"># 被动模式,通过装饰器注册一个函数在接收到消息时运行,每次接收到字符串数据时都会运行</span>
<span class="token decorator annotation punctuation">@passive_channel<span class="token punctuation">.</span>on_receive</span><span class="token punctuation">(</span>filter_func<span class="token operator">=</span><span class="token keyword">lambda</span> data<span class="token punctuation">:</span> <span class="token builtin">isinstance</span><span class="token punctuation">(</span>data<span class="token punctuation">,</span> <span class="token builtin">str</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">on_passive_receive</span><span class="token punctuation">(</span>data<span class="token punctuation">)</span><span class="token punctuation">:</span>
logger<span class="token punctuation">.</span>info<span class="token punctuation">(</span><span class="token string-interpolation"><span class="token string">f&quot;Passive receive: </span><span class="token interpolation"><span class="token punctuation">{</span>data<span class="token punctuation">}</span></span><span class="token string">&quot;</span></span><span class="token punctuation">)</span>
<span class="token comment"># 注册一个函数在NoneBot启动后运行</span>
<span class="token decorator annotation punctuation">@driver<span class="token punctuation">.</span>on_startup</span>
<span class="token keyword">def</span> <span class="token function">on_startup</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
<span class="token keyword">while</span> <span class="token boolean">True</span><span class="token punctuation">:</span>
data <span class="token operator">=</span> active_channel<span class="token punctuation">.</span>receive<span class="token punctuation">(</span><span class="token punctuation">)</span>
logger<span class="token punctuation">.</span>info<span class="token punctuation">(</span><span class="token string-interpolation"><span class="token string">f&quot;Active receive: </span><span class="token interpolation"><span class="token punctuation">{</span>data<span class="token punctuation">}</span></span><span class="token string">&quot;</span></span><span class="token punctuation">)</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>启动后控制台输出</p></blockquote><div class="language-log line-numbers-mode" data-ext="log" data-title="log"><pre class="language-log"><code><span class="token date number">0000-00-00</span> <span class="token time number">00:00:00</span> <span class="token punctuation">[</span>ℹ️信息<span class="token punctuation">]</span> <span class="token property">Passive receive:</span> I am liteyuki main process passive
<span class="token date number">0000-00-00</span> <span class="token time number">00:00:00</span> <span class="token punctuation">[</span>ℹ️信息<span class="token punctuation">]</span> <span class="token property">Active receive:</span> I am liteyuki main process active
<span class="token date number">0000-00-00</span> <span class="token time number">00:00:03</span> <span class="token punctuation">[</span>ℹ️信息<span class="token punctuation">]</span> <span class="token property">Passive receive:</span> I am liteyuki main process passive
<span class="token date number">0000-00-00</span> <span class="token time number">00:00:03</span> <span class="token punctuation">[</span>ℹ️信息<span class="token punctuation">]</span> <span class="token property">Active receive:</span> I am liteyuki main process active
<span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="共享内存通信" tabindex="-1"><a class="header-anchor" href="#共享内存通信"><span><strong>共享内存通信</strong></span></a></h2><h3 id="简介-1" tabindex="-1"><a class="header-anchor" href="#简介-1"><span>简介</span></a></h3><ul><li>相比于普通进程通信,内存共享使得代码编写更加简洁,轻雪框架提供了一个内存共享通信的接口,你可以通过<code>storage</code>模块实现内存共享通信,该模块封装通道实现</li><li>内存共享是线程安全的,你可以在多个线程中读写共享内存,线程锁会自动保护共享内存的读写操作</li></ul><h3 id="示例-1" tabindex="-1"><a class="header-anchor" href="#示例-1"><span>示例</span></a></h3><blockquote><p>在任意进程中均可使用</p></blockquote><div class="language-python line-numbers-mode" data-ext="py" data-title="py"><pre class="language-python"><code><span class="token keyword">from</span> liteyuki<span class="token punctuation">.</span>comm<span class="token punctuation">.</span>storage <span class="token keyword">import</span> shared_memory
shared_memory<span class="token punctuation">.</span><span class="token builtin">set</span><span class="token punctuation">(</span><span class="token string">&quot;key&quot;</span><span class="token punctuation">,</span> <span class="token string">&quot;value&quot;</span><span class="token punctuation">)</span> <span class="token comment"># 设置共享内存</span>
value <span class="token operator">=</span> shared_memory<span class="token punctuation">.</span>get<span class="token punctuation">(</span><span class="token string">&quot;key&quot;</span><span class="token punctuation">)</span> <span class="token comment"># 获取共享内存</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>源代码:<a href="https://github.com/LiteyukiStudio/LiteyukiBot/blob/main/liteyuki/comm/storage.py" target="_blank" rel="noopener noreferrer">liteyuki/comm/storage.py<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p></div><!--[--><!----><!--]--><footer class="page-meta"><div class="meta-item edit-link"><a href="https://github.com/LiteyukiStudio/LiteyukiBot/edit/main/docs/dev/dev_comm.md" rel="noopener noreferrer" target="_blank" aria-label="在 GitHub 上编辑" class="nav-link label"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></svg><!--]-->在 GitHub 上编辑<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!----></a></div><div class="meta-item git-info"><div class="update-time"><span class="label">上次编辑于: </span><!----></div><div class="contributors"><span class="label">贡献者: </span><!--[--><!--[--><span class="contributor" title="email: snowykami@outlook.com">snowy</span>,<!--]--><!--[--><span class="contributor" title="email: snowykami@outlook.com">Snowykami</span><!--]--><!--]--></div></div></footer><nav class="vp-page-nav"><a class="route-link nav-link prev" href="/dev/dev_lyplugin.html" aria-label="轻雪插件开发"><div class="hint"><span class="arrow start"></span>上一页</div><div class="link"><span class="font-icon icon fa-fw fa-sm fas fa-laptop-code" style=""></span>轻雪插件开发</div></a><!----></nav><div id="vp-comment" class="giscus-wrapper input-top" style="display:block;"><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" preserveAspectRatio="xMidYMid" viewBox="0 0 100 100"><circle cx="28" cy="75" r="11" fill="currentColor"><animate attributeName="fill-opacity" begin="0s" dur="1s" keyTimes="0;0.2;1" repeatCount="indefinite" values="0;1;1"></animate></circle><path fill="none" stroke="#88baf0" stroke-width="10" d="M28 47a28 28 0 0 1 28 28"><animate attributeName="stroke-opacity" begin="0.1s" dur="1s" keyTimes="0;0.2;1" repeatCount="indefinite" values="0;1;1"></animate></path><path fill="none" stroke="#88baf0" stroke-width="10" d="M28 25a50 50 0 0 1 50 50"><animate attributeName="stroke-opacity" begin="0.2s" dur="1s" keyTimes="0;0.2;1" repeatCount="indefinite" values="0;1;1"></ani
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