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<p>This is a specialization of the protobuf class ZeroCopyInputStream The principle is to get one chunk of data at a time from the proto layer, with options to backup (re-see some bytes) or skip (forward past some bytes)  
 <a href="classgrpc_1_1_proto_buffer_reader.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="impl_2codegen_2proto__buffer__reader_8h_source.html">proto_buffer_reader.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:aa00588464b3586ea57b8d4f20b526934"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#aa00588464b3586ea57b8d4f20b526934">ProtoBufferReader</a> (<a class="el" href="classgrpc_1_1_byte_buffer.html">ByteBuffer</a> *buffer)</td></tr>
<tr class="memdesc:aa00588464b3586ea57b8d4f20b526934"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs buffer reader from <em>buffer</em>.  <a href="classgrpc_1_1_proto_buffer_reader.html#aa00588464b3586ea57b8d4f20b526934">More...</a><br /></td></tr>
<tr class="separator:aa00588464b3586ea57b8d4f20b526934"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b97402d4707d6bd8b4910961aa8a757"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a8b97402d4707d6bd8b4910961aa8a757">~ProtoBufferReader</a> () override</td></tr>
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<tr class="memitem:a5535d30e741c8a081a0fec40620b37e8"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a5535d30e741c8a081a0fec40620b37e8">Next</a> (const void **data, int *size) override</td></tr>
<tr class="memdesc:a5535d30e741c8a081a0fec40620b37e8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Give the proto library a chunk of data from the stream.  <a href="classgrpc_1_1_proto_buffer_reader.html#a5535d30e741c8a081a0fec40620b37e8">More...</a><br /></td></tr>
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<tr class="memitem:a50b5c353ac2d915b09e68bf9c1f7136e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgrpc_1_1_status.html">Status</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a50b5c353ac2d915b09e68bf9c1f7136e">status</a> () const</td></tr>
<tr class="memdesc:a50b5c353ac2d915b09e68bf9c1f7136e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the status of the buffer reader.  <a href="classgrpc_1_1_proto_buffer_reader.html#a50b5c353ac2d915b09e68bf9c1f7136e">More...</a><br /></td></tr>
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<tr class="memitem:adb77905f9cecd961c6066dc78d93a60c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#adb77905f9cecd961c6066dc78d93a60c">BackUp</a> (int count) override</td></tr>
<tr class="memdesc:adb77905f9cecd961c6066dc78d93a60c"><td class="mdescLeft">&#160;</td><td class="mdescRight">The proto library calls this to indicate that we should back up <em>count</em> bytes that have already been returned by the last call of Next.  <a href="classgrpc_1_1_proto_buffer_reader.html#adb77905f9cecd961c6066dc78d93a60c">More...</a><br /></td></tr>
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<tr class="memitem:a6f9fdfde9953f08b5ca247e6e1b2f02b"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a6f9fdfde9953f08b5ca247e6e1b2f02b">Skip</a> (int count) override</td></tr>
<tr class="memdesc:a6f9fdfde9953f08b5ca247e6e1b2f02b"><td class="mdescLeft">&#160;</td><td class="mdescRight">The proto library calls this to skip over <em>count</em> bytes.  <a href="classgrpc_1_1_proto_buffer_reader.html#a6f9fdfde9953f08b5ca247e6e1b2f02b">More...</a><br /></td></tr>
<tr class="separator:a6f9fdfde9953f08b5ca247e6e1b2f02b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a98601902abf9a69f2072e81aa65f67a0"><td class="memItemLeft" align="right" valign="top">int64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a98601902abf9a69f2072e81aa65f67a0">ByteCount</a> () const override</td></tr>
<tr class="memdesc:a98601902abf9a69f2072e81aa65f67a0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the total number of bytes read since this object was created.  <a href="classgrpc_1_1_proto_buffer_reader.html#a98601902abf9a69f2072e81aa65f67a0">More...</a><br /></td></tr>
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Protected Member Functions</h2></td></tr>
<tr class="memitem:a9fa8b889f80d4bf56f6915ad9245ac3b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a9fa8b889f80d4bf56f6915ad9245ac3b">set_byte_count</a> (int64_t byte_count)</td></tr>
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<tr class="memitem:ac9dad34d4b14195b85d5cd019ba5d7d1"><td class="memItemLeft" align="right" valign="top">int64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#ac9dad34d4b14195b85d5cd019ba5d7d1">backup_count</a> ()</td></tr>
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<tr class="memitem:a56f59bca6804e19d0f780c80ccbca031"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a56f59bca6804e19d0f780c80ccbca031">set_backup_count</a> (int64_t <a class="el" href="classgrpc_1_1_proto_buffer_reader.html#ac9dad34d4b14195b85d5cd019ba5d7d1">backup_count</a>)</td></tr>
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<tr class="memitem:aa50ef34b08b9cb338dc26db6be108748"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structgrpc__byte__buffer__reader.html">grpc_byte_buffer_reader</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#aa50ef34b08b9cb338dc26db6be108748">reader</a> ()</td></tr>
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<tr class="memitem:a0874823748781629e0b2bde470d78bf3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structgrpc__slice.html">grpc_slice</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a0874823748781629e0b2bde470d78bf3">slice</a> ()</td></tr>
<tr class="separator:a0874823748781629e0b2bde470d78bf3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0a79dd8c63deb9cb1837d531229a7577"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structgrpc__slice.html">grpc_slice</a> **&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a0a79dd8c63deb9cb1837d531229a7577">mutable_slice_ptr</a> ()</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This is a specialization of the protobuf class ZeroCopyInputStream The principle is to get one chunk of data at a time from the proto layer, with options to backup (re-see some bytes) or skip (forward past some bytes) </p>
<p>Read more about ZeroCopyInputStream interface here: <a href="https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.io.zero_copy_stream#ZeroCopyInputStream">https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.io.zero_copy_stream#ZeroCopyInputStream</a> </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aa00588464b3586ea57b8d4f20b526934">&#9670;&nbsp;</a></span>ProtoBufferReader()</h2>

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          <td class="paramtype"><a class="el" href="classgrpc_1_1_byte_buffer.html">ByteBuffer</a> *&#160;</td>
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<p>Constructs buffer reader from <em>buffer</em>. </p>
<p>Will set <em><a class="el" href="classgrpc_1_1_proto_buffer_reader.html#a50b5c353ac2d915b09e68bf9c1f7136e" title="Returns the status of the buffer reader.">status()</a></em> to non ok if <em>buffer</em> is invalid (the internal buffer has not been initialized). </p>
<p>Implemented through a <a class="el" href="structgrpc__byte__buffer__reader.html">grpc_byte_buffer_reader</a> which iterates over the slices that make up a byte buffer</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a8b97402d4707d6bd8b4910961aa8a757">&#9670;&nbsp;</a></span>~ProtoBufferReader()</h2>

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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#adb77905f9cecd961c6066dc78d93a60c">&#9670;&nbsp;</a></span>BackUp()</h2>

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<p>The proto library calls this to indicate that we should back up <em>count</em> bytes that have already been returned by the last call of Next. </p>
<p>So do the backup and have that ready for a later Next. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac9dad34d4b14195b85d5cd019ba5d7d1">&#9670;&nbsp;</a></span>backup_count()</h2>

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<p>Returns the total number of bytes read since this object was created. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a5535d30e741c8a081a0fec40620b37e8">&#9670;&nbsp;</a></span>Next()</h2>

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<p>Give the proto library a chunk of data from the stream. </p>
<p>The caller may safely read from data[0, size - 1]. </p>
<p>If we have backed up previously, we need to return the backed-up slice</p>
<p>Otherwise get the next slice from the byte buffer reader</p>

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<h2 class="memtitle"><span class="permalink"><a href="#aa50ef34b08b9cb338dc26db6be108748">&#9670;&nbsp;</a></span>reader()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#a56f59bca6804e19d0f780c80ccbca031">&#9670;&nbsp;</a></span>set_backup_count()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#a9fa8b889f80d4bf56f6915ad9245ac3b">&#9670;&nbsp;</a></span>set_byte_count()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#a6f9fdfde9953f08b5ca247e6e1b2f02b">&#9670;&nbsp;</a></span>Skip()</h2>

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<p>The proto library calls this to skip over <em>count</em> bytes. </p>
<p>Implement this using Next and BackUp combined. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a0874823748781629e0b2bde470d78bf3">&#9670;&nbsp;</a></span>slice()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#a50b5c353ac2d915b09e68bf9c1f7136e">&#9670;&nbsp;</a></span>status()</h2>

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<p>Returns the status of the buffer reader. </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="impl_2codegen_2proto__buffer__reader_8h_source.html">proto_buffer_reader.h</a></li>
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