429 lines
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429 lines
15 KiB
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>static_thread_pool</title>
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table>
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<a accesskey="p" href="ssl__verify_peer.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="steady_timer.html"><img src="../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="asio.reference.static_thread_pool"></a><a class="link" href="static_thread_pool.html" title="static_thread_pool">static_thread_pool</a>
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</h3></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.static_thread_pool"></a>
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</p>
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<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">thread_pool</span> <span class="identifier">static_thread_pool</span><span class="special">;</span>
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</pre>
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<h5>
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<a name="asio.reference.static_thread_pool.h0"></a>
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<span><a name="asio.reference.static_thread_pool.types"></a></span><a class="link" href="static_thread_pool.html#asio.reference.static_thread_pool.types">Types</a>
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</h5>
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<div class="informaltable"><table class="table">
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<colgroup>
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<thead><tr>
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Name
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<p>
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Description
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</tr></thead>
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<td>
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<p>
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<a class="link" href="thread_pool__basic_executor_type.html" title="thread_pool::basic_executor_type"><span class="bold"><strong>basic_executor_type</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Executor implementation type used to submit functions to a thread
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pool.
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</p>
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</td>
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<p>
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<a class="link" href="thread_pool/executor_type.html" title="thread_pool::executor_type"><span class="bold"><strong>executor_type</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Executor used to submit functions to a thread pool.
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</p>
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</td>
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<td>
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<p>
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<a class="link" href="thread_pool/fork_event.html" title="thread_pool::fork_event"><span class="bold"><strong>fork_event</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Fork-related event notifications.
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</p>
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<p>
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<a class="link" href="thread_pool/scheduler_type.html" title="thread_pool::scheduler_type"><span class="bold"><strong>scheduler_type</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Scheduler used to schedule receivers on a thread pool.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.static_thread_pool.h1"></a>
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<span><a name="asio.reference.static_thread_pool.member_functions"></a></span><a class="link" href="static_thread_pool.html#asio.reference.static_thread_pool.member_functions">Member
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Functions</a>
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</h5>
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<div class="informaltable"><table class="table">
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<colgroup>
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<thead><tr>
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Name
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</p>
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<p>
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Description
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</p>
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</tr></thead>
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<tbody>
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<p>
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<a class="link" href="thread_pool/attach.html" title="thread_pool::attach"><span class="bold"><strong>attach</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Attaches the current thread to the pool.
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</p>
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<td>
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<p>
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<a class="link" href="thread_pool/executor.html" title="thread_pool::executor"><span class="bold"><strong>executor</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Obtains the executor associated with the pool.
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</p>
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</td>
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<td>
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<p>
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<a class="link" href="thread_pool/get_executor.html" title="thread_pool::get_executor"><span class="bold"><strong>get_executor</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Obtains the executor associated with the pool.
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</p>
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</td>
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</tr>
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<p>
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<a class="link" href="thread_pool/join.html" title="thread_pool::join"><span class="bold"><strong>join</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Joins the threads.
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</p>
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</td>
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<td>
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<p>
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<a class="link" href="thread_pool/notify_fork.html" title="thread_pool::notify_fork"><span class="bold"><strong>notify_fork</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Notify the execution_context of a fork-related event.
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</p>
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</td>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/scheduler.html" title="thread_pool::scheduler"><span class="bold"><strong>scheduler</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Obtains the scheduler associated with the pool.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/stop.html" title="thread_pool::stop"><span class="bold"><strong>stop</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Stops the threads.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/thread_pool.html" title="thread_pool::thread_pool"><span class="bold"><strong>thread_pool</strong></span></a> <span class="silver">[constructor]</span>
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</p>
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</td>
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<td>
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<p>
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Constructs a pool with an automatically determined number of threads.
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<br> <span class="silver"> —</span><br> Constructs a pool with a specified number of threads.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/wait.html" title="thread_pool::wait"><span class="bold"><strong>wait</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Waits for threads to complete.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/_thread_pool.html" title="thread_pool::~thread_pool"><span class="bold"><strong>~thread_pool</strong></span></a> <span class="silver">[destructor]</span>
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</p>
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</td>
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<td>
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<p>
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Destructor.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.static_thread_pool.h2"></a>
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<span><a name="asio.reference.static_thread_pool.protected_member_functions"></a></span><a class="link" href="static_thread_pool.html#asio.reference.static_thread_pool.protected_member_functions">Protected
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Member Functions</a>
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</h5>
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<div class="informaltable"><table class="table">
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<colgroup>
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<col>
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<thead><tr>
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Name
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</p>
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</th>
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<th>
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<p>
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Description
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</p>
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</th>
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</tr></thead>
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<tbody>
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<p>
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<a class="link" href="thread_pool/destroy.html" title="thread_pool::destroy"><span class="bold"><strong>destroy</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Destroys all services in the context.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/shutdown.html" title="thread_pool::shutdown"><span class="bold"><strong>shutdown</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Shuts down all services in the context.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.static_thread_pool.h3"></a>
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<span><a name="asio.reference.static_thread_pool.friends"></a></span><a class="link" href="static_thread_pool.html#asio.reference.static_thread_pool.friends">Friends</a>
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</h5>
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<div class="informaltable"><table class="table">
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<colgroup>
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<col>
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<col>
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</colgroup>
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<thead><tr>
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<th>
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<p>
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Name
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</p>
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</th>
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<th>
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<p>
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Description
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</p>
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</th>
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</tr></thead>
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<tbody>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/add_service.html" title="thread_pool::add_service"><span class="bold"><strong>add_service</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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(Deprecated: Use make_service().) Add a service object to the execution_context.
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</p>
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</td>
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</tr>
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<tr>
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<p>
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<a class="link" href="thread_pool/has_service.html" title="thread_pool::has_service"><span class="bold"><strong>has_service</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Determine if an execution_context contains a specified service
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type.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/make_service.html" title="thread_pool::make_service"><span class="bold"><strong>make_service</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Creates a service object and adds it to the execution_context.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="thread_pool/use_service.html" title="thread_pool::use_service"><span class="bold"><strong>use_service</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Obtain the service object corresponding to the given type.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>
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The thread pool class is an execution context where functions are permitted
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to run on one of a fixed number of threads.
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</p>
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<h5>
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||
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|
<a name="asio.reference.static_thread_pool.h4"></a>
|
||
|
|
<span><a name="asio.reference.static_thread_pool.submitting_tasks_to_the_pool"></a></span><a class="link" href="static_thread_pool.html#asio.reference.static_thread_pool.submitting_tasks_to_the_pool">Submitting
|
||
|
|
tasks to the pool</a>
|
||
|
|
</h5>
|
||
|
|
<p>
|
||
|
|
To submit functions to the thread pool, use the <a class="link" href="dispatch.html" title="dispatch"><code class="computeroutput"><span class="identifier">dispatch</span></code></a>, <a class="link" href="post.html" title="post"><code class="computeroutput"><span class="identifier">post</span></code></a> or <a class="link" href="defer.html" title="defer"><code class="computeroutput"><span class="identifier">defer</span></code></a> free functions.
|
||
|
|
</p>
|
||
|
|
<p>
|
||
|
|
For example:
|
||
|
|
</p>
|
||
|
|
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">my_task</span><span class="special">()</span>
|
||
|
|
<span class="special">{</span>
|
||
|
|
<span class="special">...</span>
|
||
|
|
<span class="special">}</span>
|
||
|
|
|
||
|
|
<span class="special">...</span>
|
||
|
|
|
||
|
|
<span class="comment">// Launch the pool with four threads.</span>
|
||
|
|
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">thread_pool</span> <span class="identifier">pool</span><span class="special">(</span><span class="number">4</span><span class="special">);</span>
|
||
|
|
|
||
|
|
<span class="comment">// Submit a function to the pool.</span>
|
||
|
|
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">post</span><span class="special">(</span><span class="identifier">pool</span><span class="special">,</span> <span class="identifier">my_task</span><span class="special">);</span>
|
||
|
|
|
||
|
|
<span class="comment">// Submit a lambda object to the pool.</span>
|
||
|
|
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">post</span><span class="special">(</span><span class="identifier">pool</span><span class="special">,</span>
|
||
|
|
<span class="special">[]()</span>
|
||
|
|
<span class="special">{</span>
|
||
|
|
<span class="special">...</span>
|
||
|
|
<span class="special">});</span>
|
||
|
|
|
||
|
|
<span class="comment">// Wait for all tasks in the pool to complete.</span>
|
||
|
|
<span class="identifier">pool</span><span class="special">.</span><span class="identifier">join</span><span class="special">();</span>
|
||
|
|
</pre>
|
||
|
|
<h5>
|
||
|
|
<a name="asio.reference.static_thread_pool.h5"></a>
|
||
|
|
<span><a name="asio.reference.static_thread_pool.requirements"></a></span><a class="link" href="static_thread_pool.html#asio.reference.static_thread_pool.requirements">Requirements</a>
|
||
|
|
</h5>
|
||
|
|
<p>
|
||
|
|
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/static_thread_pool.hpp</code>
|
||
|
|
</p>
|
||
|
|
<p>
|
||
|
|
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
|
||
|
|
</p>
|
||
|
|
</div>
|
||
|
|
<div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p>
|
||
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||
|
|
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
|
||
|
|
</p>
|
||
|
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|
||
|
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