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<div class="titlepage"><div><div><h3 class="title">
<a name="asio.reference.execution__blocking_t"></a><a class="link" href="execution__blocking_t.html" title="execution::blocking_t">execution::blocking_t</a>
</h3></div></div></div>
<p>
<a class="indexterm" name="asio.indexterm.execution__blocking_t"></a>
</p>
<p>
A property to describe what guarantees an executor makes about the blocking
behaviour of their execution functions.
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">blocking_t</span>
</pre>
<h5>
<a name="asio.reference.execution__blocking_t.h0"></a>
<span><a name="asio.reference.execution__blocking_t.types"></a></span><a class="link" href="execution__blocking_t.html#asio.reference.execution__blocking_t.types">Types</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t__always_t.html" title="execution::blocking_t::always_t"><span class="bold"><strong>always_t</strong></span></a>
</p>
</td>
<td>
<p>
A sub-property that indicates that invocation of an executor's
execution function shall block until completion of all invocations
of the submitted function object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t__never_t.html" title="execution::blocking_t::never_t"><span class="bold"><strong>never_t</strong></span></a>
</p>
</td>
<td>
<p>
A sub-property that indicates that invocation of an executor's
execution function shall not block pending completion of the invocations
of the submitted function object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t__possibly_t.html" title="execution::blocking_t::possibly_t"><span class="bold"><strong>possibly_t</strong></span></a>
</p>
</td>
<td>
<p>
A sub-property that indicates that invocation of an executor's
execution function may block pending completion of one or more
invocations of the submitted function object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/polymorphic_query_result_type.html" title="execution::blocking_t::polymorphic_query_result_type"><span class="bold"><strong>polymorphic_query_result_type</strong></span></a>
</p>
</td>
<td>
<p>
The type returned by queries against an any_executor.
</p>
</td>
</tr>
</tbody>
</table></div>
<h5>
<a name="asio.reference.execution__blocking_t.h1"></a>
<span><a name="asio.reference.execution__blocking_t.member_functions"></a></span><a class="link" href="execution__blocking_t.html#asio.reference.execution__blocking_t.member_functions">Member Functions</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<a class="link" href="execution__blocking_t/blocking_t.html" title="execution::blocking_t::blocking_t"><span class="bold"><strong>blocking_t</strong></span></a> <span class="silver">[constructor]</span>
</p>
</td>
<td>
<p>
Default constructor. <br> <span class="silver"> —</span><br> Construct from a sub-property
value.
</p>
</td>
</tr></tbody>
</table></div>
<h5>
<a name="asio.reference.execution__blocking_t.h2"></a>
<span><a name="asio.reference.execution__blocking_t.data_members"></a></span><a class="link" href="execution__blocking_t.html#asio.reference.execution__blocking_t.data_members">Data
Members</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/always.html" title="execution::blocking_t::always"><span class="bold"><strong>always</strong></span></a> <span class="silver">[static]</span>
</p>
</td>
<td>
<p>
A special value used for accessing the blocking_t::always_t property.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/is_applicable_property_v.html" title="execution::blocking_t::is_applicable_property_v"><span class="bold"><strong>is_applicable_property_v</strong></span></a> <span class="silver">[static]</span>
</p>
</td>
<td>
<p>
The blocking_t property applies to executors, senders, and schedulers.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/is_preferable.html" title="execution::blocking_t::is_preferable"><span class="bold"><strong>is_preferable</strong></span></a> <span class="silver">[static]</span>
</p>
</td>
<td>
<p>
The top-level blocking_t property cannot be preferred.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/is_requirable.html" title="execution::blocking_t::is_requirable"><span class="bold"><strong>is_requirable</strong></span></a> <span class="silver">[static]</span>
</p>
</td>
<td>
<p>
The top-level blocking_t property cannot be required.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/never.html" title="execution::blocking_t::never"><span class="bold"><strong>never</strong></span></a> <span class="silver">[static]</span>
</p>
</td>
<td>
<p>
A special value used for accessing the blocking_t::never_t property.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/possibly.html" title="execution::blocking_t::possibly"><span class="bold"><strong>possibly</strong></span></a> <span class="silver">[static]</span>
</p>
</td>
<td>
<p>
A special value used for accessing the blocking_t::possibly_t property.
</p>
</td>
</tr>
</tbody>
</table></div>
<h5>
<a name="asio.reference.execution__blocking_t.h3"></a>
<span><a name="asio.reference.execution__blocking_t.friends"></a></span><a class="link" href="execution__blocking_t.html#asio.reference.execution__blocking_t.friends">Friends</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/operator_not__eq_.html" title="execution::blocking_t::operator!="><span class="bold"><strong>operator!=</strong></span></a>
</p>
</td>
<td>
<p>
Compare property values for inequality.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="execution__blocking_t/operator_eq__eq_.html" title="execution::blocking_t::operator=="><span class="bold"><strong>operator==</strong></span></a>
</p>
</td>
<td>
<p>
Compare property values for equality.
</p>
</td>
</tr>
</tbody>
</table></div>
<h5>
<a name="asio.reference.execution__blocking_t.h4"></a>
<span><a name="asio.reference.execution__blocking_t.requirements"></a></span><a class="link" href="execution__blocking_t.html#asio.reference.execution__blocking_t.requirements">Requirements</a>
</h5>
<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/execution/blocking.hpp</code>
</p>
<p>
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio/execution.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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