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<div class="title">llfio_v2_xxx::io_multiplexer::_synchronised_io_operation_state Struct Reference</div> </div>
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<p>A synchronised i/o operation state.
<a href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#details">More...</a></p>
<p><code>#include "io_multiplexer.hpp"</code></p>
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Inheritance diagram for llfio_v2_xxx::io_multiplexer::_synchronised_io_operation_state:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:acd0454f68047ee21a2b850c04bf2a205"><td class="memItemLeft" align="right" valign="top"><a id="acd0454f68047ee21a2b850c04bf2a205"></a>
 </td><td class="memItemRight" valign="bottom"><b>_synchronised_io_operation_state</b> (const <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html">_synchronised_io_operation_state</a> &)=delete</td></tr>
<tr class="separator:acd0454f68047ee21a2b850c04bf2a205"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a35a53901388d65e5cce777866eed6e35"><td class="memItemLeft" align="right" valign="top"><a id="a35a53901388d65e5cce777866eed6e35"></a>
virtual <a class="el" href="namespacellfio__v2__xxx.html#a8884e1fc12d34aeaa428539bf6298745">io_operation_state_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a35a53901388d65e5cce777866eed6e35">current_state</a> () const noexcept override</td></tr>
<tr class="memdesc:a35a53901388d65e5cce777866eed6e35"><td class="mdescLeft"> </td><td class="mdescRight">Used to retrieve the current state of the i/o operation. <br /></td></tr>
<tr class="separator:a35a53901388d65e5cce777866eed6e35"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7dcb0935460499f66478801be21526dd"><td class="memItemLeft" align="right" valign="top"><a id="a7dcb0935460499f66478801be21526dd"></a>
virtual <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a6f5f10bf45bad03c994342e544675354">buffers_type</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a7dcb0935460499f66478801be21526dd">get_completed_read</a> () &&noexcept override</td></tr>
<tr class="memdesc:a7dcb0935460499f66478801be21526dd"><td class="mdescLeft"> </td><td class="mdescRight">After an i/o operation has finished, can be used to retrieve the result if the visitor did not. <br /></td></tr>
<tr class="separator:a7dcb0935460499f66478801be21526dd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa3759c7d7f001e6d632687ea00f70628"><td class="memItemLeft" align="right" valign="top"><a id="aa3759c7d7f001e6d632687ea00f70628"></a>
virtual <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#aa3759c7d7f001e6d632687ea00f70628">get_completed_write_or_barrier</a> () &&noexcept override</td></tr>
<tr class="memdesc:aa3759c7d7f001e6d632687ea00f70628"><td class="mdescLeft"> </td><td class="mdescRight">After an i/o operation has finished, can be used to retrieve the result if the visitor did not. <br /></td></tr>
<tr class="separator:aa3759c7d7f001e6d632687ea00f70628"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab3f7cf60400ed6ae7032bd43c6d50feb"><td class="memItemLeft" align="right" valign="top"><a id="ab3f7cf60400ed6ae7032bd43c6d50feb"></a>
virtual void * </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#ab3f7cf60400ed6ae7032bd43c6d50feb">invoke</a> (function_ptr< void *(<a class="el" href="namespacellfio__v2__xxx.html#a8884e1fc12d34aeaa428539bf6298745">io_operation_state_type</a>)> c) const noexcept override</td></tr>
<tr class="memdesc:ab3f7cf60400ed6ae7032bd43c6d50feb"><td class="mdescLeft"> </td><td class="mdescRight">Invoke the callable with the per-i/o state lock held, if any. <br /></td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>read_initiated</b> () override</td></tr>
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<tr class="memitem:ad91b80c9cdb74d93aa86984f9b05a8c8"><td class="memItemLeft" align="right" valign="top"><a id="ad91b80c9cdb74d93aa86984f9b05a8c8"></a>
virtual void </td><td class="memItemRight" valign="bottom"><b>read_completed</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a6f5f10bf45bad03c994342e544675354">buffers_type</a> > &&res) override</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>read_finished</b> () override</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>write_initiated</b> () override</td></tr>
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<tr class="memitem:a01bf271bda674c78f92c0daeb3be1255"><td class="memItemLeft" align="right" valign="top"><a id="a01bf271bda674c78f92c0daeb3be1255"></a>
virtual void </td><td class="memItemRight" valign="bottom"><b>write_completed</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > &&res) override</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>barrier_initiated</b> () override</td></tr>
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<tr class="memitem:a6f022c352c9b8b903a72b2167df83268"><td class="memItemLeft" align="right" valign="top"><a id="a6f022c352c9b8b903a72b2167df83268"></a>
virtual void </td><td class="memItemRight" valign="bottom"><b>barrier_completed</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > &&res) override</td></tr>
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<tr class="memitem:a321145a18f5f85416e41087a1dcc3a25"><td class="memItemLeft" align="right" valign="top"><a id="a321145a18f5f85416e41087a1dcc3a25"></a>
virtual void </td><td class="memItemRight" valign="bottom"><b>write_or_barrier_finished</b> () override</td></tr>
<tr class="separator:a321145a18f5f85416e41087a1dcc3a25"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac059f1ac51373dc506a7998fcf0b7147"><td class="memItemLeft" align="right" valign="top"><a id="ac059f1ac51373dc506a7998fcf0b7147"></a>
constexpr </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#ac059f1ac51373dc506a7998fcf0b7147">_unsynchronised_io_operation_state</a> ()</td></tr>
<tr class="memdesc:ac059f1ac51373dc506a7998fcf0b7147"><td class="mdescLeft"> </td><td class="mdescRight">Construct an unknown state. <br /></td></tr>
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<tr class="memitem:a3bd5f8aa3fff63f40b7280987e9e92f1"><td class="memItemLeft" align="right" valign="top"><a id="a3bd5f8aa3fff63f40b7280987e9e92f1"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a3bd5f8aa3fff63f40b7280987e9e92f1">_unsynchronised_io_operation_state</a> (<a class="el" href="classllfio__v2__xxx_1_1io__handle.html">io_handle</a> *_h, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state__visitor.html">io_operation_state_visitor</a> *_v, <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a9991b48f4cd8c77ef7fd31e6c48003b3">registered_buffer_type</a> &&b, <a class="el" href="structllfio__v2__xxx_1_1deadline.html">deadline</a> d, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__request.html">io_request</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a6f5f10bf45bad03c994342e544675354">buffers_type</a> > reqs)</td></tr>
<tr class="memdesc:a3bd5f8aa3fff63f40b7280987e9e92f1"><td class="mdescLeft"> </td><td class="mdescRight">Construct a read operation state. <br /></td></tr>
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<tr class="memitem:a72236e836e8d931921eed3969aee19e4"><td class="memItemLeft" align="right" valign="top"><a id="a72236e836e8d931921eed3969aee19e4"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a72236e836e8d931921eed3969aee19e4">_unsynchronised_io_operation_state</a> (<a class="el" href="classllfio__v2__xxx_1_1io__handle.html">io_handle</a> *_h, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state__visitor.html">io_operation_state_visitor</a> *_v, <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a9991b48f4cd8c77ef7fd31e6c48003b3">registered_buffer_type</a> &&b, <a class="el" href="structllfio__v2__xxx_1_1deadline.html">deadline</a> d, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__request.html">io_request</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > reqs)</td></tr>
<tr class="memdesc:a72236e836e8d931921eed3969aee19e4"><td class="mdescLeft"> </td><td class="mdescRight">Construct a write operation state. <br /></td></tr>
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<tr class="memitem:a3b5ca94b944cff01b36d4d85dcaf0975"><td class="memItemLeft" align="right" valign="top"><a id="a3b5ca94b944cff01b36d4d85dcaf0975"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a3b5ca94b944cff01b36d4d85dcaf0975">_unsynchronised_io_operation_state</a> (<a class="el" href="classllfio__v2__xxx_1_1io__handle.html">io_handle</a> *_h, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state__visitor.html">io_operation_state_visitor</a> *_v, <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a9991b48f4cd8c77ef7fd31e6c48003b3">registered_buffer_type</a> &&b, <a class="el" href="structllfio__v2__xxx_1_1deadline.html">deadline</a> d, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__request.html">io_request</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > reqs, <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#ace3fed6888ea1b5b6f1f641e2cf7cd26">barrier_kind</a> kind)</td></tr>
<tr class="memdesc:a3b5ca94b944cff01b36d4d85dcaf0975"><td class="mdescLeft"> </td><td class="mdescRight">Construct a barrier operation state. <br /></td></tr>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a6121c00e99a0f542a3a3dd7948e70385">_unsynchronised_io_operation_state</a> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a6f5f10bf45bad03c994342e544675354">buffers_type</a> > &&res)</td></tr>
<tr class="memdesc:a6121c00e99a0f542a3a3dd7948e70385"><td class="mdescLeft"> </td><td class="mdescRight">Construct a finished read operation state. <br /></td></tr>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html#a15ba07e7c8a65bd0e68b66a246341fef">_unsynchronised_io_operation_state</a> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > &&res)</td></tr>
<tr class="memdesc:a15ba07e7c8a65bd0e68b66a246341fef"><td class="mdescLeft"> </td><td class="mdescRight">Construct a finished write or barrier operation state. <br /></td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>_unsynchronised_io_operation_state</b> (const <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__unsynchronised__io__operation__state.html">_unsynchronised_io_operation_state</a> &)=delete</td></tr>
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<tr class="memitem:a8a3379a6af67a1656a2ee2f20058f847"><td class="memItemLeft" align="right" valign="top"><a id="a8a3379a6af67a1656a2ee2f20058f847"></a>
 </td><td class="memItemRight" valign="bottom"><b>_unsynchronised_io_operation_state</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__unsynchronised__io__operation__state.html">_unsynchronised_io_operation_state</a> &&o) noexcept</td></tr>
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<tr class="memitem:ad4eb0fe836f3853d4498a2e1f3f84a98"><td class="memItemLeft" align="right" valign="top"><a id="ad4eb0fe836f3853d4498a2e1f3f84a98"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__unsynchronised__io__operation__state.html#ad4eb0fe836f3853d4498a2e1f3f84a98">clear_storage</a> ()</td></tr>
<tr class="memdesc:ad4eb0fe836f3853d4498a2e1f3f84a98"><td class="mdescLeft"> </td><td class="mdescRight">Used to clear the storage in this operation state. <br /></td></tr>
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virtual <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state.html">io_operation_state</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__unsynchronised__io__operation__state.html#a58c5c78ce0aec95c010146024584ddcd">relocate_to</a> (byte *to_) noexcept override</td></tr>
<tr class="memdesc:a58c5c78ce0aec95c010146024584ddcd"><td class="mdescLeft"> </td><td class="mdescRight">Relocate the state to new storage, clearing the original state. Terminates the process if the state is in use. <br /></td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_read_initiated</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_read_completed</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#a6f5f10bf45bad03c994342e544675354">buffers_type</a> > &&res)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_read_finished</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_write_initiated</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_write_completed</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > &&res)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_barrier_initiated</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_barrier_completed</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g, <a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__result.html">io_result</a>< <a class="el" href="classllfio__v2__xxx_1_1io__multiplexer.html#abc6841b44841c72c3778a3aee296a051">const_buffers_type</a> > &&res)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>_write_or_barrier_finished</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state_1_1lock__guard.html">lock_guard</a> &g)</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:af4cb1c032dcf9d7bc390e116e0d28094"><td class="memItemLeft" align="right" valign="top"><a id="af4cb1c032dcf9d7bc390e116e0d28094"></a>
spinlock </td><td class="memItemRight" valign="bottom"><b>_lock_</b></td></tr>
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<tr class="memitem:aa41379b452b50f267639b8d2ebbbdfa4"><td class="memItemLeft" align="right" valign="top"><a id="aa41379b452b50f267639b8d2ebbbdfa4"></a>
<a class="el" href="namespacellfio__v2__xxx.html#a8884e1fc12d34aeaa428539bf6298745">io_operation_state_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__unsynchronised__io__operation__state.html#aa41379b452b50f267639b8d2ebbbdfa4">state</a> {io_operation_state_type::unknown}</td></tr>
<tr class="memdesc:aa41379b452b50f267639b8d2ebbbdfa4"><td class="mdescLeft"> </td><td class="mdescRight">The current lifecycle state of this i/o operation. <br /></td></tr>
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<tr class="memitem:acda4e1f8e7713fb5a0c5e1cffbb8dcac"><td class="memItemLeft" align="right" valign="top"><a id="acda4e1f8e7713fb5a0c5e1cffbb8dcac"></a>
union <a class="el" href="unionllfio__v2__xxx_1_1io__multiplexer_1_1__unsynchronised__io__operation__state_1_1payload__t.html">llfio_v2_xxx::io_multiplexer::_unsynchronised_io_operation_state::payload_t</a> </td><td class="memItemRight" valign="bottom"><b>payload</b></td></tr>
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<a class="el" href="classllfio__v2__xxx_1_1io__handle.html">io_handle</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state.html#aa0ea732afb9aed27c04d6f333ed815ae">h</a> {nullptr}</td></tr>
<tr class="memdesc:aa0ea732afb9aed27c04d6f333ed815ae"><td class="mdescLeft"> </td><td class="mdescRight">The i/o handle the i/o operation is upon. <br /></td></tr>
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<tr class="memitem:a648d87148f5a16587c9f9c2a5663e20c"><td class="memItemLeft" align="right" valign="top"><a id="a648d87148f5a16587c9f9c2a5663e20c"></a>
<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state__visitor.html">io_operation_state_visitor</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1io__operation__state.html#a648d87148f5a16587c9f9c2a5663e20c">visitor</a> {nullptr}</td></tr>
<tr class="memdesc:a648d87148f5a16587c9f9c2a5663e20c"><td class="mdescLeft"> </td><td class="mdescRight">The state visitor supplied when the operation was initialised. <br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>_synchronised_io_operation_state</b> (<a class="el" href="structllfio__v2__xxx_1_1io__multiplexer_1_1__synchronised__io__operation__state.html">_synchronised_io_operation_state</a> &&)=default</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>_lock</b> () noexcept override</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>_unlock</b> () noexcept override</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A synchronised i/o operation state. </p>
<p>This implementation uses an atomic to synchronise access during the <code>*_completed()</code>, <code>*_finished()</code> and <code>current_state()</code> member functions, thus making it suitable for use across threads. </p>
</div><hr/>The documentation for this struct was generated from the following file:<ul>
<li>include/llfio/v2.0/io_multiplexer.hpp</li>
</ul>
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