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| <div class="title">buffer-builder.h</div> </div> |
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| <a href="buffer-builder_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2012 Cloudera Inc.</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#ifndef IMPALA_UTIL_BUFFER_BUILDER_H</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"></span><span class="preprocessor">#define IMPALA_UTIL_BUFFER_BUILDER_H</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <stdlib.h></span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <boost/cstdint.hpp></span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div> |
| <div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html"> 25</a></span> <span class="keyword">class </span><a class="code" href="classimpala_1_1BufferBuilder.html">BufferBuilder</a> {</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">public</span>:</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#af46c98b63f5c56de5df979a8af413729"> 27</a></span>  <a class="code" href="classimpala_1_1BufferBuilder.html#af46c98b63f5c56de5df979a8af413729">BufferBuilder</a>(uint8_t* dst_buffer, <span class="keywordtype">int</span> dst_len) </div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  : <a class="code" href="classimpala_1_1BufferBuilder.html#a31f6f8fef27558c792203df11563ee1d">buffer_</a>(dst_buffer), <a class="code" href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1">capacity_</a>(dst_len), <a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a>(0) {</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  }</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div> |
| <div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#a3efb6f2b00b47e7a3e1b1c11f0a761b2"> 31</a></span>  <a class="code" href="classimpala_1_1BufferBuilder.html#a3efb6f2b00b47e7a3e1b1c11f0a761b2">BufferBuilder</a>(<span class="keywordtype">char</span>* dst_buffer, <span class="keywordtype">int</span> dst_len) </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  : <a class="code" href="classimpala_1_1BufferBuilder.html#a31f6f8fef27558c792203df11563ee1d">buffer_</a>(reinterpret_cast<uint8_t*>(dst_buffer)), </div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1">capacity_</a>(dst_len), <a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a>(0) {</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#a4cc096476e8a7e7fd794023da8f80460"> 36</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1BufferBuilder.html#a4cc096476e8a7e7fd794023da8f80460">Append</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* buffer, <span class="keywordtype">int</span> len) {</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  DCHECK_LE(<a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a> + len, <a class="code" href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1">capacity_</a>);</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  memcpy(<a class="code" href="classimpala_1_1BufferBuilder.html#a31f6f8fef27558c792203df11563ee1d">buffer_</a> + <a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a>, buffer, len);</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a> += len;</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  }</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#aafe1fb384b90d284a40c82698f09ec3f"> 43</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1BufferBuilder.html#aafe1fb384b90d284a40c82698f09ec3f">Append</a>(<span class="keyword">const</span> T& v) {</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="classimpala_1_1BufferBuilder.html#a4cc096476e8a7e7fd794023da8f80460">Append</a>(&v, <span class="keyword">sizeof</span>(T));</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#a64ca6e2b963d5001dd220f98be4c0379"> 47</a></span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BufferBuilder.html#a64ca6e2b963d5001dd220f98be4c0379">capacity</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1">capacity_</a>; }</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#a8c1c2548614c9bb70efe407dc3558290"> 48</a></span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BufferBuilder.html#a8c1c2548614c9bb70efe407dc3558290">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a>; }</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">private</span>: </div> |
| <div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#a31f6f8fef27558c792203df11563ee1d"> 51</a></span>  uint8_t* <a class="code" href="classimpala_1_1BufferBuilder.html#a31f6f8fef27558c792203df11563ee1d">buffer_</a>;</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1"> 52</a></span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1">capacity_</a>;</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807"> 53</a></span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">size_</a>;</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> };</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#endif</span></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_af46c98b63f5c56de5df979a8af413729"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#af46c98b63f5c56de5df979a8af413729">impala::BufferBuilder::BufferBuilder</a></div><div class="ttdeci">BufferBuilder(uint8_t *dst_buffer, int dst_len)</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00027">buffer-builder.h:27</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_a8c1c2548614c9bb70efe407dc3558290"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#a8c1c2548614c9bb70efe407dc3558290">impala::BufferBuilder::size</a></div><div class="ttdeci">int size() const </div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00048">buffer-builder.h:48</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_a4cc096476e8a7e7fd794023da8f80460"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#a4cc096476e8a7e7fd794023da8f80460">impala::BufferBuilder::Append</a></div><div class="ttdeci">void Append(const void *buffer, int len)</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00036">buffer-builder.h:36</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_a31f6f8fef27558c792203df11563ee1d"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#a31f6f8fef27558c792203df11563ee1d">impala::BufferBuilder::buffer_</a></div><div class="ttdeci">uint8_t * buffer_</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00051">buffer-builder.h:51</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html">impala::BufferBuilder</a></div><div class="ttdoc">Utility class to build an in-memory buffer. </div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00025">buffer-builder.h:25</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_aafe1fb384b90d284a40c82698f09ec3f"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#aafe1fb384b90d284a40c82698f09ec3f">impala::BufferBuilder::Append</a></div><div class="ttdeci">void Append(const T &v)</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00043">buffer-builder.h:43</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_ab18b92ca51ebdc490fdd1aac89f6b5c1"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#ab18b92ca51ebdc490fdd1aac89f6b5c1">impala::BufferBuilder::capacity_</a></div><div class="ttdeci">int capacity_</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00052">buffer-builder.h:52</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_a53e137c69a26c8bfff4a97627550d807"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#a53e137c69a26c8bfff4a97627550d807">impala::BufferBuilder::size_</a></div><div class="ttdeci">int size_</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00053">buffer-builder.h:53</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_a3efb6f2b00b47e7a3e1b1c11f0a761b2"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#a3efb6f2b00b47e7a3e1b1c11f0a761b2">impala::BufferBuilder::BufferBuilder</a></div><div class="ttdeci">BufferBuilder(char *dst_buffer, int dst_len)</div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00031">buffer-builder.h:31</a></div></div> |
| <div class="ttc" id="classimpala_1_1BufferBuilder_html_a64ca6e2b963d5001dd220f98be4c0379"><div class="ttname"><a href="classimpala_1_1BufferBuilder.html#a64ca6e2b963d5001dd220f98be4c0379">impala::BufferBuilder::capacity</a></div><div class="ttdeci">int capacity() const </div><div class="ttdef"><b>Definition:</b> <a href="buffer-builder_8h_source.html#l00047">buffer-builder.h:47</a></div></div> |
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