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<li class="navelem"><a class="el" href="namespacegrpc.html">grpc</a></li><li class="navelem"><a class="el" href="namespacegrpc_1_1internal.html">internal</a></li><li class="navelem"><a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html">ReaderInterface</a></li>  </ul>
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<p>An interface that yields a sequence of messages of type <em>R</em>.  
 <a href="classgrpc_1_1internal_1_1_reader_interface.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="grpcpp_2impl_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:ad1d28c0720937a61b0f7952d3add7bba"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html#ad1d28c0720937a61b0f7952d3add7bba">~ReaderInterface</a> ()</td></tr>
<tr class="separator:ad1d28c0720937a61b0f7952d3add7bba"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad3216783fae57e614181e28df9435f33"><td class="memItemLeft" align="right" valign="top">virtual bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html#ad3216783fae57e614181e28df9435f33">NextMessageSize</a> (uint32_t *sz)=0</td></tr>
<tr class="memdesc:ad3216783fae57e614181e28df9435f33"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get an upper bound on the next message size available for reading on this stream.  <a href="#ad3216783fae57e614181e28df9435f33">More...</a><br /></td></tr>
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<tr class="memitem:adfb50ace59b4b9666a46548d3f732ee8"><td class="memItemLeft" align="right" valign="top">virtual bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html#adfb50ace59b4b9666a46548d3f732ee8">Read</a> (R *msg)=0</td></tr>
<tr class="memdesc:adfb50ace59b4b9666a46548d3f732ee8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Block to read a message and parse to <em>msg</em>.  <a href="#adfb50ace59b4b9666a46548d3f732ee8">More...</a><br /></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::internal::ReaderInterface&lt; R &gt;</h3>

<p>An interface that yields a sequence of messages of type <em>R</em>. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="ad1d28c0720937a61b0f7952d3add7bba"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad1d28c0720937a61b0f7952d3add7bba">&#9670;&nbsp;</a></span>~ReaderInterface()</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_1internal_1_1_reader_interface.html">grpc::internal::ReaderInterface</a>&lt; R &gt;::~<a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html">ReaderInterface</a> </td>
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<h2 class="memtitle"><span class="permalink"><a href="#ad3216783fae57e614181e28df9435f33">&#9670;&nbsp;</a></span>NextMessageSize()</h2>

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          <td class="memname">virtual bool <a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html">grpc::internal::ReaderInterface</a>&lt; R &gt;::NextMessageSize </td>
          <td>(</td>
          <td class="paramtype">uint32_t *&#160;</td>
          <td class="paramname"><em>sz</em></td><td>)</td>
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<p>Get an upper bound on the next message size available for reading on this stream. </p>

<p>Implemented in <a class="el" href="classgrpc_1_1_server_split_streamer.html#afd992b3d73e9da01b4267b443fe39176">grpc::ServerSplitStreamer&lt; RequestType, ResponseType &gt;</a>, <a class="el" href="classgrpc_1_1_server_unary_streamer.html#a0a7c2fec34b451dbd6f2924321b4dc51">grpc::ServerUnaryStreamer&lt; RequestType, ResponseType &gt;</a>, <a class="el" href="classgrpc_1_1_server_reader_writer.html#a647d6e58b7720113db0357d1c4b7750f">grpc::ServerReaderWriter&lt; W, R &gt;</a>, <a class="el" href="classgrpc_1_1_server_reader.html#aba6ffb98a646c122a4b5e8a53e969d7e">grpc::ServerReader&lt; R &gt;</a>, <a class="el" href="classgrpc_1_1_client_reader_writer.html#a85c3018b87b4110c98b9f7f91adbfcef">grpc::ClientReaderWriter&lt; W, R &gt;</a>, and <a class="el" href="classgrpc_1_1_client_reader.html#ae687eb92304da9fb220d95a72c0a4605">grpc::ClientReader&lt; R &gt;</a>.</p>

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<a id="adfb50ace59b4b9666a46548d3f732ee8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adfb50ace59b4b9666a46548d3f732ee8">&#9670;&nbsp;</a></span>Read()</h2>

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          <td class="memname">virtual bool <a class="el" href="classgrpc_1_1internal_1_1_reader_interface.html">grpc::internal::ReaderInterface</a>&lt; R &gt;::Read </td>
          <td>(</td>
          <td class="paramtype">R *&#160;</td>
          <td class="paramname"><em>msg</em></td><td>)</td>
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<p>Block to read a message and parse to <em>msg</em>. </p>
<p>Returns <em>true</em> on success. This is thread-safe with respect to <em>Write</em> or  methods on the same stream. It should not be called concurrently with another <em>Read</em> on the same stream as the order of delivery will not be defined.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">msg</td><td>The read message.</td></tr>
  </table>
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<dl class="section return"><dt>Returns</dt><dd><em>false</em> when there will be no more incoming messages, either because the other side has called <em>WritesDone()</em> or the stream has failed (or been cancelled). </dd></dl>

<p>Implemented in <a class="el" href="classgrpc_1_1_server_split_streamer.html#a0f408957f9071bb498b6f4a948ef6113">grpc::ServerSplitStreamer&lt; RequestType, ResponseType &gt;</a>, <a class="el" href="classgrpc_1_1_server_unary_streamer.html#a23294b403e6cb46ab88835e6d3be7491">grpc::ServerUnaryStreamer&lt; RequestType, ResponseType &gt;</a>, <a class="el" href="classgrpc_1_1_server_reader_writer.html#adc1925f519a8d1dc7b7101d37513774b">grpc::ServerReaderWriter&lt; W, R &gt;</a>, <a class="el" href="classgrpc_1_1_server_reader.html#aefba84a0fc0d5cef5be843e0fb08e1d5">grpc::ServerReader&lt; R &gt;</a>, <a class="el" href="classgrpc_1_1_client_reader_writer.html#aa8887778273bea6ad32ffea3a6105699">grpc::ClientReaderWriter&lt; W, R &gt;</a>, and <a class="el" href="classgrpc_1_1_client_reader.html#a11b490573c4ea88d5fecc90b712717a8">grpc::ClientReader&lt; R &gt;</a>.</p>

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<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_2sync__stream_8h_source.html">sync_stream.h</a></li>
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