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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_response_reader_interface.html">ClientAsyncResponseReaderInterface</a></li>  </ul>
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<a href="#pub-methods">Public Member Functions</a>  </div>
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<div class="title">grpc::ClientAsyncResponseReaderInterface&lt; R &gt; Class Template Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div>  </div>
</div><!--header-->
<div class="contents">

<p>An interface relevant for async client side unary RPCs (which send one request message to a server and receive one response message).  
 <a href="classgrpc_1_1_client_async_response_reader_interface.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="grpcpp_2impl_2codegen_2async__unary__call_8h_source.html">async_unary_call.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:aa97dc1ab6a7160a489d2e555102bf5a0"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html#aa97dc1ab6a7160a489d2e555102bf5a0">~ClientAsyncResponseReaderInterface</a> ()</td></tr>
<tr class="separator:aa97dc1ab6a7160a489d2e555102bf5a0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1f0a98a8d6e2ee06236a7ecb971a2ac5"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html#a1f0a98a8d6e2ee06236a7ecb971a2ac5">StartCall</a> ()=0</td></tr>
<tr class="memdesc:a1f0a98a8d6e2ee06236a7ecb971a2ac5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Start the call that was set up by the constructor, but only if the constructor was invoked through the "Prepare" API which doesn't actually start the call.  <a href="#a1f0a98a8d6e2ee06236a7ecb971a2ac5">More...</a><br /></td></tr>
<tr class="separator:a1f0a98a8d6e2ee06236a7ecb971a2ac5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a676e3a03a61c49a82b630d85bbfd366c"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html#a676e3a03a61c49a82b630d85bbfd366c">ReadInitialMetadata</a> (void *tag)=0</td></tr>
<tr class="memdesc:a676e3a03a61c49a82b630d85bbfd366c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request notification of the reading of initial metadata.  <a href="#a676e3a03a61c49a82b630d85bbfd366c">More...</a><br /></td></tr>
<tr class="separator:a676e3a03a61c49a82b630d85bbfd366c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a379b1d7477431729e01cd48cf6fc78bb"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html#a379b1d7477431729e01cd48cf6fc78bb">Finish</a> (R *msg, <a class="el" href="classgrpc_1_1_status.html">Status</a> *status, void *tag)=0</td></tr>
<tr class="memdesc:a379b1d7477431729e01cd48cf6fc78bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request to receive the server's response <em>msg</em> and final <em>status</em> for the call, and to notify <em>tag</em> on this call's completion queue when finished.  <a href="#a379b1d7477431729e01cd48cf6fc78bb">More...</a><br /></td></tr>
<tr class="separator:a379b1d7477431729e01cd48cf6fc78bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;class R&gt;<br />
class grpc::ClientAsyncResponseReaderInterface&lt; R &gt;</h3>

<p>An interface relevant for async client side unary RPCs (which send one request message to a server and receive one response message). </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="aa97dc1ab6a7160a489d2e555102bf5a0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa97dc1ab6a7160a489d2e555102bf5a0">&#9670;&nbsp;</a></span>~ClientAsyncResponseReaderInterface()</h2>

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template&lt;class R &gt; </div>
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          <td class="memname">virtual <a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html">grpc::ClientAsyncResponseReaderInterface</a>&lt; R &gt;::~<a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html">ClientAsyncResponseReaderInterface</a> </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span></span>  </td>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="a379b1d7477431729e01cd48cf6fc78bb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a379b1d7477431729e01cd48cf6fc78bb">&#9670;&nbsp;</a></span>Finish()</h2>

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<div class="memproto">
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template&lt;class R &gt; </div>
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          <td class="memname">virtual void <a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html">grpc::ClientAsyncResponseReaderInterface</a>&lt; R &gt;::Finish </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"><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">pure virtual</span></span>  </td>
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<p>Request to receive the server's response <em>msg</em> and final <em>status</em> for the call, and to notify <em>tag</em> on this call's completion queue when finished. </p>
<p>This function will return when either:</p><ul>
<li>when the server's response message and status have been received.</li>
<li>when the server has returned a non-OK status (no message expected in this case).</li>
<li>when the call failed for some reason and the library generated a non-OK status.</li>
</ul>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>Tag identifying this request. </td></tr>
    <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">[out]</td><td class="paramname">msg</td><td>To be filled in with the server's response message. </td></tr>
  </table>
  </dd>
</dl>

<p>Implemented in <a class="el" href="classgrpc_1_1_client_async_response_reader.html#a48b0b4dabcbaf4b4a12e4f094ac79b59">grpc::ClientAsyncResponseReader&lt; R &gt;</a>.</p>

</div>
</div>
<a id="a676e3a03a61c49a82b630d85bbfd366c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a676e3a03a61c49a82b630d85bbfd366c">&#9670;&nbsp;</a></span>ReadInitialMetadata()</h2>

<div class="memitem">
<div class="memproto">
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template&lt;class R &gt; </div>
<table class="mlabels">
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  <td class="mlabels-left">
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          <td class="memname">virtual void <a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html">grpc::ClientAsyncResponseReaderInterface</a>&lt; R &gt;::ReadInitialMetadata </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>tag</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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<p>Request notification of the reading of 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>Finish</em> method.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">tag</td><td>Tag identifying this request. </td></tr>
  </table>
  </dd>
</dl>

<p>Implemented in <a class="el" href="classgrpc_1_1_client_async_response_reader.html#ab45261c3dee4f7b34080593cc899b40d">grpc::ClientAsyncResponseReader&lt; R &gt;</a>.</p>

</div>
</div>
<a id="a1f0a98a8d6e2ee06236a7ecb971a2ac5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1f0a98a8d6e2ee06236a7ecb971a2ac5">&#9670;&nbsp;</a></span>StartCall()</h2>

<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;class R &gt; </div>
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          <td class="memname">virtual void <a class="el" href="classgrpc_1_1_client_async_response_reader_interface.html">grpc::ClientAsyncResponseReaderInterface</a>&lt; R &gt;::StartCall </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
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</div><div class="memdoc">

<p>Start the call that was set up by the constructor, but only if the constructor was invoked through the "Prepare" API which doesn't actually start the call. </p>

<p>Implemented in <a class="el" href="classgrpc_1_1_client_async_response_reader.html#aa6bb324b380b1389e38f89f7a0b85c64">grpc::ClientAsyncResponseReader&lt; R &gt;</a>.</p>

</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>include/grpcpp/impl/codegen/<a class="el" href="grpcpp_2impl_2codegen_2async__unary__call_8h_source.html">async_unary_call.h</a></li>
</ul>
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