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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_server_unary_streamer.html">ServerUnaryStreamer</a></li>  </ul>
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<p>A class to represent a flow-controlled unary call.  
 <a href="classgrpc_1_1_server_unary_streamer.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="impl_2codegen_2sync__stream_8h_source.html">sync_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:a4386ffda36b85506ad46016154e4ac2f"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_server_unary_streamer.html#a4386ffda36b85506ad46016154e4ac2f">ServerUnaryStreamer</a> (<a class="el" href="classgrpc_1_1_call.html">Call</a> *call, <a class="el" href="classgrpc_1_1_server_context.html">ServerContext</a> *ctx)</td></tr>
<tr class="separator:a4386ffda36b85506ad46016154e4ac2f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af9f549cf998f3bd879b485532275518a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_server_unary_streamer.html#af9f549cf998f3bd879b485532275518a">SendInitialMetadata</a> () override</td></tr>
<tr class="memdesc:af9f549cf998f3bd879b485532275518a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Block to send initial metadata to client.  <a href="#af9f549cf998f3bd879b485532275518a">More...</a><br/></td></tr>
<tr class="separator:af9f549cf998f3bd879b485532275518a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0a7c2fec34b451dbd6f2924321b4dc51"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_server_unary_streamer.html#a0a7c2fec34b451dbd6f2924321b4dc51">NextMessageSize</a> (uint32_t *sz) override</td></tr>
<tr class="memdesc:a0a7c2fec34b451dbd6f2924321b4dc51"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get an upper bound on the request message size from the client.  <a href="#a0a7c2fec34b451dbd6f2924321b4dc51">More...</a><br/></td></tr>
<tr class="separator:a0a7c2fec34b451dbd6f2924321b4dc51"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a23294b403e6cb46ab88835e6d3be7491"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_server_unary_streamer.html#a23294b403e6cb46ab88835e6d3be7491">Read</a> (RequestType *request) override</td></tr>
<tr class="memdesc:a23294b403e6cb46ab88835e6d3be7491"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read a message of type <em>R</em> into <em>msg</em>.  <a href="#a23294b403e6cb46ab88835e6d3be7491">More...</a><br/></td></tr>
<tr class="separator:a23294b403e6cb46ab88835e6d3be7491"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a68d093b4506bfcac59f5996157867d62"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_server_unary_streamer.html#a68d093b4506bfcac59f5996157867d62">Write</a> (const ResponseType &amp;response, <a class="el" href="classgrpc_1_1_write_options.html">WriteOptions</a> options) override</td></tr>
<tr class="memdesc:a68d093b4506bfcac59f5996157867d62"><td class="mdescLeft">&#160;</td><td class="mdescRight">Block to write <em>msg</em> to the stream with <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> <em>options</em>.  <a href="#a68d093b4506bfcac59f5996157867d62">More...</a><br/></td></tr>
<tr class="separator:a68d093b4506bfcac59f5996157867d62"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgrpc_1_1_server_streaming_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgrpc_1_1_server_streaming_interface')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgrpc_1_1_server_streaming_interface.html">grpc::ServerStreamingInterface</a></td></tr>
<tr class="memitem:a3c4c1bb05e9a92ca9095bcb63301d8a1 inherit pub_methods_classgrpc_1_1_server_streaming_interface"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_server_streaming_interface.html#a3c4c1bb05e9a92ca9095bcb63301d8a1">~ServerStreamingInterface</a> ()</td></tr>
<tr class="separator:a3c4c1bb05e9a92ca9095bcb63301d8a1 inherit pub_methods_classgrpc_1_1_server_streaming_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgrpc_1_1_writer_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgrpc_1_1_writer_interface')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgrpc_1_1_writer_interface.html">grpc::WriterInterface&lt; ResponseType &gt;</a></td></tr>
<tr class="memitem:a447d71736fb6e8c6bd21287ecc3a9f75 inherit pub_methods_classgrpc_1_1_writer_interface"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_writer_interface.html#a447d71736fb6e8c6bd21287ecc3a9f75">~WriterInterface</a> ()</td></tr>
<tr class="separator:a447d71736fb6e8c6bd21287ecc3a9f75 inherit pub_methods_classgrpc_1_1_writer_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5ddbce2a74455afea61fc21e16b01c6a inherit pub_methods_classgrpc_1_1_writer_interface"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_writer_interface.html#a5ddbce2a74455afea61fc21e16b01c6a">Write</a> (const ResponseType &amp;msg)</td></tr>
<tr class="memdesc:a5ddbce2a74455afea61fc21e16b01c6a inherit pub_methods_classgrpc_1_1_writer_interface"><td class="mdescLeft">&#160;</td><td class="mdescRight">Block to write <em>msg</em> to the stream with default write options.  <a href="#a5ddbce2a74455afea61fc21e16b01c6a">More...</a><br/></td></tr>
<tr class="separator:a5ddbce2a74455afea61fc21e16b01c6a inherit pub_methods_classgrpc_1_1_writer_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8a4180c8928156e9daffa18465866ad2 inherit pub_methods_classgrpc_1_1_writer_interface"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_writer_interface.html#a8a4180c8928156e9daffa18465866ad2">WriteLast</a> (const ResponseType &amp;msg, <a class="el" href="classgrpc_1_1_write_options.html">WriteOptions</a> options)</td></tr>
<tr class="memdesc:a8a4180c8928156e9daffa18465866ad2 inherit pub_methods_classgrpc_1_1_writer_interface"><td class="mdescLeft">&#160;</td><td class="mdescRight">Write <em>msg</em> and coalesce it with the writing of trailing metadata, using WriteOptions <em>options</em>.  <a href="#a8a4180c8928156e9daffa18465866ad2">More...</a><br/></td></tr>
<tr class="separator:a8a4180c8928156e9daffa18465866ad2 inherit pub_methods_classgrpc_1_1_writer_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgrpc_1_1_reader_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgrpc_1_1_reader_interface')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgrpc_1_1_reader_interface.html">grpc::ReaderInterface&lt; RequestType &gt;</a></td></tr>
<tr class="memitem:a1fbd3d6e86e2f97e5444f29b0af0a9d5 inherit pub_methods_classgrpc_1_1_reader_interface"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_reader_interface.html#a1fbd3d6e86e2f97e5444f29b0af0a9d5">~ReaderInterface</a> ()</td></tr>
<tr class="separator:a1fbd3d6e86e2f97e5444f29b0af0a9d5 inherit pub_methods_classgrpc_1_1_reader_interface"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;class RequestType, class ResponseType&gt;<br/>
class grpc::ServerUnaryStreamer&lt; RequestType, ResponseType &gt;</h3>

<p>A class to represent a flow-controlled unary call. </p>
<p>This is something of a hybrid between conventional unary and streaming. This is invoked through a unary call on the client side, but the server responds to it as though it were a single-ping-pong streaming call. The server can use the <em>NextMessageSize</em> method to determine an upper-bound on the size of the message. A key difference relative to streaming: <a class="el" href="classgrpc_1_1_server_unary_streamer.html" title="A class to represent a flow-controlled unary call. ">ServerUnaryStreamer</a> must have exactly 1 Read and exactly 1 Write, in that order, to function correctly. Otherwise, the RPC is in error. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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template&lt;class RequestType , class ResponseType &gt; </div>
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          <td class="memname"><a class="el" href="classgrpc_1_1_server_unary_streamer.html">grpc::ServerUnaryStreamer</a>&lt; RequestType, ResponseType &gt;::<a class="el" href="classgrpc_1_1_server_unary_streamer.html">ServerUnaryStreamer</a> </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classgrpc_1_1_call.html">Call</a> *&#160;</td>
          <td class="paramname"><em>call</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="classgrpc_1_1_server_context.html">ServerContext</a> *&#160;</td>
          <td class="paramname"><em>ctx</em>&#160;</td>
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          <td>)</td>
          <td></td><td></td>
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<h2 class="groupheader">Member Function Documentation</h2>
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template&lt;class RequestType , class ResponseType &gt; </div>
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          <td class="memname">bool <a class="el" href="classgrpc_1_1_server_unary_streamer.html">grpc::ServerUnaryStreamer</a>&lt; RequestType, ResponseType &gt;::NextMessageSize </td>
          <td>(</td>
          <td class="paramtype">uint32_t *&#160;</td>
          <td class="paramname"><em>sz</em></td><td>)</td>
          <td></td>
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  </td>
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<p>Get an upper bound on the request message size from the client. </p>

<p>Implements <a class="el" href="classgrpc_1_1_reader_interface.html#a4ad823a3c32ec163fca5fc175dcb102f">grpc::ReaderInterface&lt; RequestType &gt;</a>.</p>

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template&lt;class RequestType , class ResponseType &gt; </div>
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          <td class="memname">bool <a class="el" href="classgrpc_1_1_server_unary_streamer.html">grpc::ServerUnaryStreamer</a>&lt; RequestType, ResponseType &gt;::Read </td>
          <td>(</td>
          <td class="paramtype">RequestType *&#160;</td>
          <td class="paramname"><em>request</em></td><td>)</td>
          <td></td>
        </tr>
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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><a class="el" href="classgrpc_1_1_reader_interface.html#a04a1da8610d790ea86ecd5a14fe892b8" title="Block to read a message and parse to msg. ">ReaderInterface::Read</a></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>
</dl>

<p>Implements <a class="el" href="classgrpc_1_1_reader_interface.html#a04a1da8610d790ea86ecd5a14fe892b8">grpc::ReaderInterface&lt; RequestType &gt;</a>.</p>

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          <td class="memname">void <a class="el" href="classgrpc_1_1_server_unary_streamer.html">grpc::ServerUnaryStreamer</a>&lt; RequestType, ResponseType &gt;::SendInitialMetadata </td>
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<p>Block to send initial metadata to client. </p>
<p>Implicit input parameter:</p>
<ul>
<li>the <em><a class="el" href="classgrpc_1_1_server_context.html" title="A ServerContext allows the person implementing a service handler to: ">ServerContext</a></em> associated with this call will be used for sending initial metadata. </li>
</ul>

<p>Implements <a class="el" href="classgrpc_1_1_server_streaming_interface.html#a1a73c0e46258c0ef9a5c1ecd3cbe429a">grpc::ServerStreamingInterface</a>.</p>

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template&lt;class RequestType , class ResponseType &gt; </div>
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          <td class="memname">bool <a class="el" href="classgrpc_1_1_server_unary_streamer.html">grpc::ServerUnaryStreamer</a>&lt; RequestType, ResponseType &gt;::Write </td>
          <td>(</td>
          <td class="paramtype">const ResponseType &amp;&#160;</td>
          <td class="paramname"><em>msg</em>, </td>
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          <td class="paramtype"><a class="el" href="classgrpc_1_1_write_options.html">WriteOptions</a>&#160;</td>
          <td class="paramname"><em>options</em>&#160;</td>
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          <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>Block to write <em>msg</em> to the stream with <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> <em>options</em>. </p>
<p>This is thread-safe with respect to <em><a class="el" href="classgrpc_1_1_reader_interface.html#a04a1da8610d790ea86ecd5a14fe892b8" title="Block to read a message and parse to msg. ">ReaderInterface::Read</a></em> </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">msg</td><td>The message to be written to the stream. </td></tr>
    <tr><td class="paramname">options</td><td>The <a class="el" href="classgrpc_1_1_write_options.html" title="Per-message write options. ">WriteOptions</a> affecting the write operation.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd><em>true</em> on success, <em>false</em> when the stream has been closed. </dd></dl>

<p>Implements <a class="el" href="classgrpc_1_1_writer_interface.html#ae2ddda78f4e1deadf858a68b955e787d">grpc::WriterInterface&lt; ResponseType &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_2sync__stream_8h_source.html">sync_stream.h</a></li>
</ul>
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