<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="a `TaskManager` global instance through lazy_static!"><metaname="keywords"content="rust, rustlang, rust-lang, TASK_MANAGER"><title>TASK_MANAGER in os::task - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceSerif4-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../FiraSans-Regular.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../FiraSans-Medium.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceCodePro-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceSerif4-Bold.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceCodePro-Semibold.ttf.woff2"><linkrel="stylesheet"type="text/css"href="../../normalize.css"><linkrel="stylesheet"type="text/css"href="../../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../../ayu.css"disabled><linkrel="stylesheet"type="text/css"href="../../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../../light.css"id="themeStyle"><scriptid="default-settings"></script><scriptsrc="../../storage.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../main.js"></script><noscript><linkrel="stylesheet"href="../../noscript.css"></noscript><linkrel="alternate icon"type="image/png"href="../../favicon-16x16.png"><linkrel="alternate icon"type="image/png"href="../../favicon-32x32.png"><linkrel="icon"type="image/svg+xml"href="../../favicon.svg"></head><bodyclass="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle">☰</button><aclass="sidebar-logo"href="../../os/index.html"><divclass="logo-container"><imgclass="rust-logo"src="../../rust-logo.svg"alt="logo"></div></a><h2class="location"></h2></nav><navclass="sidebar"><aclass="sidebar-logo"href="../../os/index.html"><divclass="logo-container"><imgclass="rust-logo"src="../../rust-logo.svg"alt="logo"></div></a><h2class="location"><ahref="#">TASK_MANAGER</a></h2><divclass="sidebar-elems"><section><divclass="block"><h3class="sidebar-title"><ahref="#fields">Fields</a></h3><ul><li><ahref="#structfield.__private_field">__private_field</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#deref-methods-TaskManager">Methods from Deref<Target=TaskManager></a></h3><ul><li><ahref="#method.change_current_program_brk">change_current_program_brk</a></li><li><ahref="#method.find_next_task">find_next_task</a></li><li><ahref="#method.get_current_token">get_current_token</a></li><li><ahref="#method.get_current_trap_cx">get_current_trap_cx</a></li><li><ahref="#method.mark_current_exited">mark_current_exited</a></li><li><ahref="#method.mark_current_suspended">mark_current_suspended</a></li><li><ahref="#method.run_first_task">run_first_task</a></li><li><ahref="#method.run_next_task">run_next_task</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#trait-implementations">Trait Implementations</a></h3><ul><li><ahref="#impl-Deref-for-TASK_MANAGER">Deref</a></li><li><ahref="#impl-LazyStatic-for-TASK_MANAGER">LazyStatic</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#synthetic-implementations">Auto Trait Implementations</a></h3><ul><li><ahref="#impl-RefUnwindSafe-for-TASK_MANAGER">RefUnwindSafe</a></li><li><ahref="#impl-Send-for-TASK_MANAGER">Send</a></li><li><ahref="#impl-Sync-for-TASK_MANAGER">Sync</a></li><li><ahref="#impl-Unpin-for-TASK_MANAGER">Unpin</a></li><li><ahref="#impl-UnwindSafe-for-TASK_MANAGER">UnwindSafe</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#blanket-im
}</code></pre></div><detailsclass="rustdoc-toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>a <code>TaskManager</code> global instance through lazy_static!</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.mark_current_suspended"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#94-98">source</a></span><h4class="code-header">fn <ahref="#method.mark_current_suspended"class="fnname">mark_current_suspended</a>(&self)</h4></section></summary><divclass="docblock"><p>Change the status of current <code>Running</code> task into <code>Ready</code>.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.mark_current_exited"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#101-105">source</a></span><h4class="code-header">fn <ahref="#method.mark_current_exited"class="fnname">mark_current_exited</a>(&self)</h4></section></summary><divclass="docblock"><p>Change the status of current <code>Running</code> task into <code>Exited</code>.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.find_next_task"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#110-116">source</a></span><h4class="code-header">fn <ahref="#method.find_next_task"class="fnname">find_next_task</a>(&self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a>></h4></section></summary><divclass="docblock"><p>Find next task to run and return task id.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.get_current_token"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#119-122">source</a></span><h4class="code-header">fn <ahref="#method.get_current_token"class="fnname">get_current_token</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a></h4></section></summary><divclass="docblock"><p>Get the current ‘Running’ task’s token.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.get_current_trap_cx"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#125-128">source</a></span><h4class="code-header">fn <ahref="#method.get_current_trap_cx"class="fnname">get_current_trap_cx</a>(&self) ->&'static mut <aclass="struct"href="../trap/context/struct.TrapContext.html"title="struct os::trap::context::TrapContext">TrapContext</a></h4></section></summary><divclass="docblock"><p>Get the current ‘Running’ task’s trap contexts.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.change_current_program_brk"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#131-135">source</a></span><h4class="code-header">pub fn <ahref="#method.change_current_program_brk"class="fnname">change_current_program_brk</a>(&self, size: <aclass="primitive"href="https://doc.rust-lang.org/nightly/core/primitive.i32.html">i32</a>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a>></h4></section></summary><divclass="docblock"><p>Change the current ‘Running’ task’s program break</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.run_next_task"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="../../src/os/task/mod.rs.html#139-157">source</a></span><h4class="code-header">fn <ahref="#method.run_next_task"class="fnname">run_next_task</a>(&self)</h4></section></summary><divclass="docblock"><p>Switch current <code>Running</code> task to the task we have found,
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-TASK_MANAGER"class="impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#598">source</a></span><ahref="#impl-TryFrom%3CU%3E-for-TASK_MANAGER"class="anchor"></a><h3class="code-header in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl has-srclink"><ahref="#associatedtype.Error"class="anchor"></a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-TASK_MANAGER"class="impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#583">source</a></span><ahref="#impl-TryInto%3CU%3E-for-TASK_MANAGER"class="anchor"></a><h3class="code-header in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl has-srclink"><ahref="#associatedtype.Error-1"class="anchor"></a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
