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<li class="navelem"><a class="el" href="namespacegrpc.html">grpc</a></li><li class="navelem"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html">ClientAsyncReaderWriter</a></li>  </ul>
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<p><code>#include &lt;<a class="el" href="impl_2codegen_2async__stream_8h_source.html">async_stream.h</a>&gt;</code></p>
<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:a0511a6da96294a181471688be7765044"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#a0511a6da96294a181471688be7765044">ClientAsyncReaderWriter</a> (<a class="el" href="classgrpc_1_1_channel_interface.html">ChannelInterface</a> *channel, <a class="el" href="classgrpc_1_1_completion_queue.html">CompletionQueue</a> *cq, const <a class="el" href="classgrpc_1_1_rpc_method.html">RpcMethod</a> &amp;method, <a class="el" href="classgrpc_1_1_client_context.html">ClientContext</a> *context, void *tag)</td></tr>
<tr class="separator:a0511a6da96294a181471688be7765044"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a169a2eb8bedfd7281b37c79fdd307eb2"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#a169a2eb8bedfd7281b37c79fdd307eb2">ReadInitialMetadata</a> (void *tag) override</td></tr>
<tr class="memdesc:a169a2eb8bedfd7281b37c79fdd307eb2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request notification of the reading of the initial metadata.  <a href="#a169a2eb8bedfd7281b37c79fdd307eb2">More...</a><br/></td></tr>
<tr class="separator:a169a2eb8bedfd7281b37c79fdd307eb2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2f2c91734a7de5affdd427fb88ee6167"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#a2f2c91734a7de5affdd427fb88ee6167">Read</a> (R *msg, void *tag) override</td></tr>
<tr class="memdesc:a2f2c91734a7de5affdd427fb88ee6167"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read a message of type <em>R</em> into <em>msg</em>.  <a href="#a2f2c91734a7de5affdd427fb88ee6167">More...</a><br/></td></tr>
<tr class="separator:a2f2c91734a7de5affdd427fb88ee6167"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a07bcc3a0737c3bee3ef50def89af5fc7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#a07bcc3a0737c3bee3ef50def89af5fc7">Write</a> (const W &amp;msg, void *tag) override</td></tr>
<tr class="memdesc:a07bcc3a0737c3bee3ef50def89af5fc7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request the writing of <em>msg</em> with identifying tag <em>tag</em>.  <a href="#a07bcc3a0737c3bee3ef50def89af5fc7">More...</a><br/></td></tr>
<tr class="separator:a07bcc3a0737c3bee3ef50def89af5fc7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abcea1a4d9d8f6f1070940b1997fe0125"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#abcea1a4d9d8f6f1070940b1997fe0125">Write</a> (const W &amp;msg, <a class="el" href="classgrpc_1_1_write_options.html">WriteOptions</a> options, void *tag) override</td></tr>
<tr class="memdesc:abcea1a4d9d8f6f1070940b1997fe0125"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request the writing of <em>msg</em> using <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> <em>options</em> with identifying tag <em>tag</em>.  <a href="#abcea1a4d9d8f6f1070940b1997fe0125">More...</a><br/></td></tr>
<tr class="separator:abcea1a4d9d8f6f1070940b1997fe0125"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af3e090a0801f6bc524f959cd93e4cddc"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#af3e090a0801f6bc524f959cd93e4cddc">WritesDone</a> (void *tag) override</td></tr>
<tr class="memdesc:af3e090a0801f6bc524f959cd93e4cddc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Signal the client is done with the writes.  <a href="#af3e090a0801f6bc524f959cd93e4cddc">More...</a><br/></td></tr>
<tr class="separator:af3e090a0801f6bc524f959cd93e4cddc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a292fae35382e0f3c919840689cfb2358"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html#a292fae35382e0f3c919840689cfb2358">Finish</a> (<a class="el" href="classgrpc_1_1_status.html">Status</a> *status, void *tag) override</td></tr>
<tr class="memdesc:a292fae35382e0f3c919840689cfb2358"><td class="mdescLeft">&#160;</td><td class="mdescRight">Indicate that the stream is to be finished and request notification Should not be used concurrently with other operations.  <a href="#a292fae35382e0f3c919840689cfb2358">More...</a><br/></td></tr>
<tr class="separator:a292fae35382e0f3c919840689cfb2358"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgrpc_1_1_client_async_streaming_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgrpc_1_1_client_async_streaming_interface')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgrpc_1_1_client_async_streaming_interface.html">grpc::ClientAsyncStreamingInterface</a></td></tr>
<tr class="memitem:a103c33e82dbf1715749886c4249f3f28 inherit pub_methods_classgrpc_1_1_client_async_streaming_interface"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_streaming_interface.html#a103c33e82dbf1715749886c4249f3f28">~ClientAsyncStreamingInterface</a> ()</td></tr>
<tr class="separator:a103c33e82dbf1715749886c4249f3f28 inherit pub_methods_classgrpc_1_1_client_async_streaming_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgrpc_1_1_async_writer_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgrpc_1_1_async_writer_interface')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgrpc_1_1_async_writer_interface.html">grpc::AsyncWriterInterface&lt; W &gt;</a></td></tr>
<tr class="memitem:a94cc9e4ed13c8fe4a1d883d465477ddd inherit pub_methods_classgrpc_1_1_async_writer_interface"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_async_writer_interface.html#a94cc9e4ed13c8fe4a1d883d465477ddd">~AsyncWriterInterface</a> ()</td></tr>
<tr class="separator:a94cc9e4ed13c8fe4a1d883d465477ddd inherit pub_methods_classgrpc_1_1_async_writer_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a78097d5f23f4aa2c1b919b12800db90d inherit pub_methods_classgrpc_1_1_async_writer_interface"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_async_writer_interface.html#a78097d5f23f4aa2c1b919b12800db90d">WriteLast</a> (const W &amp;msg, <a class="el" href="classgrpc_1_1_write_options.html">WriteOptions</a> options, void *tag)</td></tr>
<tr class="memdesc:a78097d5f23f4aa2c1b919b12800db90d inherit pub_methods_classgrpc_1_1_async_writer_interface"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request the writing of <em>msg</em> and coalesce it with the writing of trailing metadata, using <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> <em>options</em> with identifying tag <em>tag</em>.  <a href="#a78097d5f23f4aa2c1b919b12800db90d">More...</a><br/></td></tr>
<tr class="separator:a78097d5f23f4aa2c1b919b12800db90d inherit pub_methods_classgrpc_1_1_async_writer_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgrpc_1_1_async_reader_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgrpc_1_1_async_reader_interface')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgrpc_1_1_async_reader_interface.html">grpc::AsyncReaderInterface&lt; R &gt;</a></td></tr>
<tr class="memitem:ac7845d2df90fb380008aadb7f5f2f379 inherit pub_methods_classgrpc_1_1_async_reader_interface"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_async_reader_interface.html#ac7845d2df90fb380008aadb7f5f2f379">~AsyncReaderInterface</a> ()</td></tr>
<tr class="separator:ac7845d2df90fb380008aadb7f5f2f379 inherit pub_methods_classgrpc_1_1_async_reader_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<div class="memtemplate">
template&lt;class W , class R &gt; </div>
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      <table class="memname">
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          <td class="memname"><a class="el" href="classgrpc_1_1_client_async_reader_writer.html">grpc::ClientAsyncReaderWriter</a>&lt; W, R &gt;::<a class="el" href="classgrpc_1_1_client_async_reader_writer.html">ClientAsyncReaderWriter</a> </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classgrpc_1_1_channel_interface.html">ChannelInterface</a> *&#160;</td>
          <td class="paramname"><em>channel</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="classgrpc_1_1_completion_queue.html">CompletionQueue</a> *&#160;</td>
          <td class="paramname"><em>cq</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="classgrpc_1_1_rpc_method.html">RpcMethod</a> &amp;&#160;</td>
          <td class="paramname"><em>method</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="classgrpc_1_1_client_context.html">ClientContext</a> *&#160;</td>
          <td class="paramname"><em>context</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<h2 class="groupheader">Member Function Documentation</h2>
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template&lt;class W , class R &gt; </div>
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          <td class="memname">void <a class="el" href="classgrpc_1_1_client_async_reader_writer.html">grpc::ClientAsyncReaderWriter</a>&lt; W, R &gt;::Finish </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classgrpc_1_1_status.html">Status</a> *&#160;</td>
          <td class="paramname"><em>status</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">override</span><span class="mlabel">virtual</span></span>  </td>
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<p>Indicate that the stream is to be finished and request notification Should not be used concurrently with other operations. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">status</td><td>To be updated with the operation status. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>Tag identifying this request. </td></tr>
  </table>
  </dd>
</dl>

<p>Implements <a class="el" href="classgrpc_1_1_client_async_streaming_interface.html#afc1cfbd1514fea47088bc837bb578a24">grpc::ClientAsyncStreamingInterface</a>.</p>

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template&lt;class W , class R &gt; </div>
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          <td class="memname">void <a class="el" href="classgrpc_1_1_client_async_reader_writer.html">grpc::ClientAsyncReaderWriter</a>&lt; W, R &gt;::Read </td>
          <td>(</td>
          <td class="paramtype">R *&#160;</td>
          <td class="paramname"><em>msg</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">override</span><span class="mlabel">virtual</span></span>  </td>
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<p>Read a message of type <em>R</em> into <em>msg</em>. </p>
<p>Completion will be notified by <em>tag</em> on the associated completion queue. This is thread-safe with respect to <em>Write</em> or <em>WritesDone</em> methods. It should not be called concurrently with other streaming APIs on the same stream. It is not meaningful to call it concurrently with another <em>Read</em> on the same stream since reads on the same stream are delivered in order.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">msg</td><td>Where to eventually store the read message. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>The tag identifying the operation. </td></tr>
  </table>
  </dd>
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<p>Implements <a class="el" href="classgrpc_1_1_async_reader_interface.html#aa644cf63c12ae8c9d5fda16a361f8a11">grpc::AsyncReaderInterface&lt; R &gt;</a>.</p>

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          <td class="memname">void <a class="el" href="classgrpc_1_1_client_async_reader_writer.html">grpc::ClientAsyncReaderWriter</a>&lt; W, R &gt;::ReadInitialMetadata </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em></td><td>)</td>
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<p>Request notification of the reading of the initial metadata. </p>
<p>Completion will be notified by <em>tag</em> on the associated completion queue. This call is optional, but if it is used, it cannot be used concurrently with or after the <em>Read</em> method.</p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>Tag identifying this request. </td></tr>
  </table>
  </dd>
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<p>Implements <a class="el" href="classgrpc_1_1_client_async_streaming_interface.html#ad83bfe2febf4a6296b7d2646799b8174">grpc::ClientAsyncStreamingInterface</a>.</p>

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          <td>(</td>
          <td class="paramtype">const W &amp;&#160;</td>
          <td class="paramname"><em>msg</em>, </td>
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          <td class="paramkey"></td>
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<p>Request the writing of <em>msg</em> with identifying tag <em>tag</em>. </p>
<p>Only one write may be outstanding at any given time. This means that after calling Write, one must wait to receive <em>tag</em> from the completion queue BEFORE calling Write again. This is thread-safe with respect to <em>Read</em> </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">msg</td><td>The message to be written. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>The tag identifying the operation. </td></tr>
  </table>
  </dd>
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<p>Implements <a class="el" href="classgrpc_1_1_async_writer_interface.html#a40c1091ac5cb5243c874da725ae291b4">grpc::AsyncWriterInterface&lt; W &gt;</a>.</p>

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          <td class="memname">void <a class="el" href="classgrpc_1_1_client_async_reader_writer.html">grpc::ClientAsyncReaderWriter</a>&lt; W, R &gt;::Write </td>
          <td>(</td>
          <td class="paramtype">const W &amp;&#160;</td>
          <td class="paramname"><em>msg</em>, </td>
        </tr>
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          <td class="paramkey"></td>
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          <td class="paramname"><em>options</em>, </td>
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          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em>&#160;</td>
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          <td></td>
          <td>)</td>
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<p>Request the writing of <em>msg</em> using <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> <em>options</em> with identifying tag <em>tag</em>. </p>
<p>Only one write may be outstanding at any given time. This means that after calling Write, one must wait to receive <em>tag</em> from the completion queue BEFORE calling Write again. <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> <em>options</em> is used to set the write options of this message. This is thread-safe with respect to <em>Read</em> </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">msg</td><td>The message to be written. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">options</td><td>The <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> to be used to write this message. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>The tag identifying the operation. </td></tr>
  </table>
  </dd>
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<p>Implements <a class="el" href="classgrpc_1_1_async_writer_interface.html#a6a8480dbf5ad95384c929d9db91b6074">grpc::AsyncWriterInterface&lt; W &gt;</a>.</p>

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          <td class="memname">void <a class="el" href="classgrpc_1_1_client_async_reader_writer.html">grpc::ClientAsyncReaderWriter</a>&lt; W, R &gt;::WritesDone </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em></td><td>)</td>
          <td></td>
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<p>Signal the client is done with the writes. </p>
<p>Thread-safe with respect to <em>Read</em> </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>The tag identifying the operation. </td></tr>
  </table>
  </dd>
</dl>

<p>Implements <a class="el" href="classgrpc_1_1_client_async_reader_writer_interface.html#a878193880df68ab969b697f1fcd7dbc3">grpc::ClientAsyncReaderWriterInterface&lt; W, R &gt;</a>.</p>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li>include/grpc++/impl/codegen/<a class="el" href="impl_2codegen_2async__stream_8h_source.html">async_stream.h</a></li>
</ul>
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