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Processes, Threads and IPC — Firefox Source Docs documentation
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<li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/xpcshell/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">XPCShell tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/tps/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">TPS</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/web-platform/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">web-platform-tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/gtest/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">GTest</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/fuzzing/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Fuzzing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/sanitizer/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Sanitizer</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/perfdocs/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Performance Testing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/code-coverage/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Code coverage</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing-rust-code/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Testing & Debugging Rust Code</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Releases & Updates</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Mozilla Update Infrastructure</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#watershed-updates">Watershed Updates</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#desupport-updates">Desupport Updates</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Localization & Internationalization</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/intl/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Internationalization</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/l10n/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Localization</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Firefox and Python</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mozbase/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">mozbase</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/python/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Using third-party Python packages</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Metrics Collected in Firefox</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/metrics/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Metrics</a></li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" aria-label="Mobile navigation menu"><i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox Source Docs</a> </nav> <div class="wy-nav-content"> <div class="rst-content"><!-- This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this file, - You can obtain one at http://mozilla.org/MPL/2.0/. --> <div role="navigation" aria-label="Page navigation"> <ul class="wy-breadcrumbs"> <li><a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="icon icon-home" aria-label="Home"></a></li> <li class="breadcrumb-item active">Processes, Threads and IPC</li> <li class="wy-breadcrumbs-aside"><a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://bugzilla.mozilla.org/enter_bug.cgi?product%3DDeveloper%2BInfrastructure%26component%3DFirefox%2BSource%2BDocs%253A%2BContent%26short_desc%3DDocumentation%2Bissue%2Bon%2Bipc/index%26comment%3DURL%2B%3D%2Bhttps://firefox-source-docs.mozilla.org/ipc/index.html%26bug_file_loc%3Dhttps://firefox-source-docs.mozilla.org/ipc/index.html" rel="nofollow">Report an issue</a> / <a href="https://firefox--source--docs-mozilla-org.translate.goog/_sources/ipc/index.rst.txt?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" rel="nofollow"> View page source</a></li> </ul> <hr> </div> <div role="main" class="document" itemscope itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <section id="processes-threads-and-ipc"> <h1>Processes, Threads and IPC<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#processes-threads-and-ipc" title="Link to this heading">¶</a></h1> <p>These pages contain the documentation for Gecko’s architecture for platform process and thread creation, communication and synchronization. They live in mozilla-central in the ‘ipc/docs’ directory.</p> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">IPDL: Inter-Thread and Inter-Process Message Passing</a> <ul> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-idea">The Idea</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-approach">The Approach</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-steps-to-making-a-new-actor">The Steps To Making A New Actor</a></li> </ul></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-protocol-language">The Protocol Language</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#using-the-ipdl-compiler">Using The IPDL compiler</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#referencing-externally-defined-data-types-ipdl-includes">Referencing Externally Defined Data Types: IPDL Includes</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#namespaces">Namespaces</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#generating-ipdl-aware-c-data-types-ipdl-structs-and-unions">Generating IPDL-Aware C++ Data Types: IPDL Structs and Unions</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#defining-actors">Defining Actors</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#declaring-ipdl-messages">Declaring IPDL Messages</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#ipdl-syntax-quick-reference">IPDL Syntax Quick Reference</a></li> </ul></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-c-interface">The C++ Interface</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#paramtraits">ParamTraits</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#ipdl-structs-and-unions-in-c">IPDL Structs and Unions in C++</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#actors-and-messages-in-c">Actors and Messages in C++</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#actor-lifetimes-in-c">Actor Lifetimes in C++</a></li> </ul></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#top-level-actors">Top Level Actors</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#value-of-top-level-actors">Value of Top Level Actors</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#creating-top-level-actors-from-other-actors">Creating Top Level Actors From Other Actors</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#creating-first-top-level-actors">Creating First Top Level Actors</a></li> </ul></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#pbackground">PBackground</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#ipdl-best-practices">IPDL Best Practices</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-old-ways">The Old Ways</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-fud">The FUD</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#the-rest">The Rest</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#nested-messages">Nested messages</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#message-logging">Message Logging</a></li> </ul></li> </ul></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Gecko Processes</a> <ul> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#before-creating-a-new-process">Before Creating a New Process</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#firefox-process-hierarchy">Firefox Process Hierarchy</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#adding-a-new-type-of-process">Adding a New Type of Process</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#common-architecture">Common Architecture</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#process-bookkeeping">Process Bookkeeping</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#creating-the-new-process">Creating the New Process</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#initializing-the-new-process">Initializing the New Process</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#destroying-the-new-process">Destroying the New Process</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#creating-a-new-top-level-actor">Creating a New Top Level Actor</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#connecting-with-other-processes">Connecting With Other Processes</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#completing-the-sample">Completing the Sample</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#running-the-sample">Running the Sample</a></li> </ul></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#debugging-process-startup">Debugging Process Startup</a> <ul> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#debugging-with-ipdl-logging">Debugging with IPDL Logging</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/processes.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#early-debugging-for-a-new-process">Early Debugging For A New Process</a></li> </ul></li> </ul></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/utility_process.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Utility Process</a></li> </ul> </div> <p>For inter-process communication involving Javascript, see <a class="reference external" href="https://firefox--source--docs-mozilla-org.translate.goog/dom/ipc/jsactors.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">JSActors</a>. They are a very limited case, used for communication between elements in the DOM, which may exist in separate processes. They only involve the main process and content processes – no other processes run Javascript.</p> </section> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="Footer"><a href="https://firefox--source--docs-mozilla-org.translate.goog/gfx/Moz2D.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="btn btn-neutral float-left" title="Moz2D" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a> <a href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/ipdl.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="btn btn-neutral float-right" title="IPDL: Inter-Thread and Inter-Process Message Passing" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a> </div> <hr> <div role="contentinfo"> <p></p> </div> Built with <a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://www.sphinx-doc.org/">Sphinx</a> using a <a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://github.com/readthedocs/sphinx_rtd_theme">theme</a> provided by <a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> <script>function gtElInit() {var lib = new google.translate.TranslateService();lib.translatePage('pl', 'iw', function () {});}</script> <script src="https://translate.google.com/translate_a/element.js?cb=gtElInit&hl=en-GB&client=wt" type="text/javascript"></script> </body> </html>