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| <div class="title">codec.h</div> </div> |
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| <div class="contents"> |
| <a href="codec_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_CODEC_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_CODEC_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 "<a class="code" href="status_8h.html">common/status.h</a>"</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="mem-pool_8h.html">runtime/mem-pool.h</a>"</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "<a class="code" href="runtime-profile_8h.html">util/runtime-profile.h</a>"</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <boost/scoped_ptr.hpp></span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "gen-cpp/Descriptors_types.h"</span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">class </span>MemPool;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">class </span>RuntimeState;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div> |
| <div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html"> 41</a></span> <span class="keyword">class </span><a class="code" href="classimpala_1_1Codec.html">Codec</a> {</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">public</span>:</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a19ded9d1e31423b9a5171d19167c4799"> 44</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> <a class="code" href="classimpala_1_1Codec.html#a19ded9d1e31423b9a5171d19167c4799">DEFAULT_COMPRESSION</a>;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a9914b2157fa4e42d07defd7c1c428000"> 45</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> <a class="code" href="classimpala_1_1Codec.html#a9914b2157fa4e42d07defd7c1c428000">GZIP_COMPRESSION</a>;</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a686e63f6fce2c614afb0d8c5120b5a6a"> 46</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> <a class="code" href="classimpala_1_1Codec.html#a686e63f6fce2c614afb0d8c5120b5a6a">BZIP2_COMPRESSION</a>;</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a87369178706252f34de2b729503ba266"> 47</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> <a class="code" href="classimpala_1_1Codec.html#a87369178706252f34de2b729503ba266">SNAPPY_COMPRESSION</a>;</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a3d59e437b1f94ab1597d510af72a4939"> 48</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> <a class="code" href="classimpala_1_1Codec.html#a3d59e437b1f94ab1597d510af72a4939">UNKNOWN_CODEC_ERROR</a>;</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div> |
| <div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a26c0d38f6ee196ba8191b32e76765549"> 51</a></span>  <span class="keyword">typedef</span> std::map<const std::string, const THdfsCompression::type> <a class="code" href="classimpala_1_1Codec.html#a26c0d38f6ee196ba8191b32e76765549">CodecMap</a>;</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#aa8a61a59a3a8cae50a6010f5e0f21115"> 52</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="classimpala_1_1Codec.html#a26c0d38f6ee196ba8191b32e76765549">CodecMap</a> <a class="code" href="classimpala_1_1Codec.html#aa8a61a59a3a8cae50a6010f5e0f21115">CODEC_MAP</a>;</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">static</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a0d8e74ac086a91c1cc7dbd7fe166f307">CreateDecompressor</a>(<a class="code" href="classimpala_1_1MemPool.html">MemPool</a>* mem_pool, <span class="keywordtype">bool</span> reuse,</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  THdfsCompression::type format, boost::scoped_ptr<Codec>* decompressor);</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">static</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a0d8e74ac086a91c1cc7dbd7fe166f307">CreateDecompressor</a>(<a class="code" href="classimpala_1_1MemPool.html">MemPool</a>* mem_pool, <span class="keywordtype">bool</span> reuse,</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> std::string& codec, boost::scoped_ptr<Codec>* decompressor);</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">static</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a18854cd2e08266b09600a6e559c7c6e1">CreateCompressor</a>(<a class="code" href="classimpala_1_1MemPool.html">MemPool</a>* mem_pool, <span class="keywordtype">bool</span> reuse,</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  THdfsCompression::type format, boost::scoped_ptr<Codec>* compressor);</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">static</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a18854cd2e08266b09600a6e559c7c6e1">CreateCompressor</a>(<a class="code" href="classimpala_1_1MemPool.html">MemPool</a>* mem_pool, <span class="keywordtype">bool</span> reuse,</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">const</span> std::string& codec, boost::scoped_ptr<Codec>* compressor);</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">static</span> std::string <a class="code" href="classimpala_1_1Codec.html#a8e34e69fbf492c3c03cd417f68f75bd4">GetCodecName</a>(THdfsCompression::type);</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">static</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#ab105a8417870709e0636d503977ec02c">GetHadoopCodecClassName</a>(THdfsCompression::type, std::string* out_name);</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div> |
| <div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a72f5d471b61e14dd058a3a68cfc65772"> 89</a></span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Codec.html#a72f5d471b61e14dd058a3a68cfc65772">~Codec</a>() {}</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"></span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"></span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"></span> <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a738cd6628de0972edef858907048f777">ProcessBlock</a>(<span class="keywordtype">bool</span> output_preallocated, int64_t input_length,</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> uint8_t* input, int64_t* output_length, uint8_t** output) = 0;</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a31a2678b525670dcf33d35a359dcc839">ProcessBlock32</a>(<span class="keywordtype">bool</span> output_preallocated, <span class="keywordtype">int</span> input_length, <span class="keyword">const</span> uint8_t* input,</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">int</span>* output_length, uint8_t** output);</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div> |
| <div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a0b7de236927fbd920e1e8647396c7175"> 117</a></span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#a0b7de236927fbd920e1e8647396c7175">ProcessBlockStreaming</a>(int64_t input_length, <span class="keyword">const</span> uint8_t* input,</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  int64_t* input_bytes_read, int64_t* output_length, uint8_t** output, <span class="keywordtype">bool</span>* eos) {</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1Status.html">Status</a>(<span class="stringliteral">"Not implemented."</span>);</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">virtual</span> int64_t <a class="code" href="classimpala_1_1Codec.html#a17c8e2c231a04155601b70c363127b8c">MaxOutputLen</a>(int64_t input_len, <span class="keyword">const</span> uint8_t* input = NULL) = 0;</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1Codec.html#a3b0c5338bc8103a6d257e62d0954e148">Close</a>();</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">virtual</span> std::string <a class="code" href="classimpala_1_1Codec.html#a0fecfd76fe1a35dd03bf94155a62a4ad">file_extension</a>() <span class="keyword">const</span> = 0;</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> |
| <div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a49163565c028d44d734167bf4fa4745d"> 135</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1Codec.html#a49163565c028d44d734167bf4fa4745d">reuse_output_buffer</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1Codec.html#a93bd812c02e9838a8397a78cabe494cf">reuse_buffer_</a>; }</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a079688b7a4dde5a4e60467b449901e12"> 140</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1Codec.html#a079688b7a4dde5a4e60467b449901e12">MAX_BLOCK_SIZE</a> = (2L * 1024 * 1024 * 1024) - 1;</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">protected</span>:</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="classimpala_1_1Codec.html#a6c6ea5e7ee2ad71a1f33ce12dc498c8f">Codec</a>(<a class="code" href="classimpala_1_1MemPool.html">MemPool</a>* mem_pool, <span class="keywordtype">bool</span> reuse_buffer);</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1Codec.html#aaa957a37b16d1e65b7f62ca67aa7381a">Init</a>() = 0;</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div> |
| <div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a375ea0ba90166ebb055a3d0c9a8936c9"> 154</a></span>  <a class="code" href="classimpala_1_1MemPool.html">MemPool</a>* <a class="code" href="classimpala_1_1Codec.html#a375ea0ba90166ebb055a3d0c9a8936c9">memory_pool_</a>;</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> |
| <div class="line"><a name="l00158"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a7ec5c623611416c9a873ea242d0d5035"> 158</a></span>  boost::scoped_ptr<MemPool> <a class="code" href="classimpala_1_1Codec.html#a7ec5c623611416c9a873ea242d0d5035">temp_memory_pool_</a>;</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div> |
| <div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a93bd812c02e9838a8397a78cabe494cf"> 161</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1Codec.html#a93bd812c02e9838a8397a78cabe494cf">reuse_buffer_</a>;</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div> |
| <div class="line"><a name="l00165"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#afcd266a7fd72165ffeb2e25159374889"> 165</a></span>  uint8_t* <a class="code" href="classimpala_1_1Codec.html#afcd266a7fd72165ffeb2e25159374889">out_buffer_</a>;</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div> |
| <div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classimpala_1_1Codec.html#a82fbdfbac9ea0b9d14004ebb0e501058"> 168</a></span>  int64_t <a class="code" href="classimpala_1_1Codec.html#a82fbdfbac9ea0b9d14004ebb0e501058">buffer_length_</a>;</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> };</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> }</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="preprocessor">#endif</span></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_aa8a61a59a3a8cae50a6010f5e0f21115"><div class="ttname"><a href="classimpala_1_1Codec.html#aa8a61a59a3a8cae50a6010f5e0f21115">impala::Codec::CODEC_MAP</a></div><div class="ttdeci">static const CodecMap CODEC_MAP</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00052">codec.h:52</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a49163565c028d44d734167bf4fa4745d"><div class="ttname"><a href="classimpala_1_1Codec.html#a49163565c028d44d734167bf4fa4745d">impala::Codec::reuse_output_buffer</a></div><div class="ttdeci">bool reuse_output_buffer() const </div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00135">codec.h:135</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a18854cd2e08266b09600a6e559c7c6e1"><div class="ttname"><a href="classimpala_1_1Codec.html#a18854cd2e08266b09600a6e559c7c6e1">impala::Codec::CreateCompressor</a></div><div class="ttdeci">static Status CreateCompressor(MemPool *mem_pool, bool reuse, THdfsCompression::type format, boost::scoped_ptr< Codec > *compressor)</div></div> |
| <div class="ttc" id="runtime-profile_8h_html"><div class="ttname"><a href="runtime-profile_8h.html">runtime-profile.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a686e63f6fce2c614afb0d8c5120b5a6a"><div class="ttname"><a href="classimpala_1_1Codec.html#a686e63f6fce2c614afb0d8c5120b5a6a">impala::Codec::BZIP2_COMPRESSION</a></div><div class="ttdeci">static const char *const BZIP2_COMPRESSION</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00046">codec.h:46</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a6c6ea5e7ee2ad71a1f33ce12dc498c8f"><div class="ttname"><a href="classimpala_1_1Codec.html#a6c6ea5e7ee2ad71a1f33ce12dc498c8f">impala::Codec::Codec</a></div><div class="ttdeci">Codec(MemPool *mem_pool, bool reuse_buffer)</div><div class="ttdef"><b>Definition:</b> <a href="codec_8cc_source.html#l00164">codec.cc:164</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a0d8e74ac086a91c1cc7dbd7fe166f307"><div class="ttname"><a href="classimpala_1_1Codec.html#a0d8e74ac086a91c1cc7dbd7fe166f307">impala::Codec::CreateDecompressor</a></div><div class="ttdeci">static Status CreateDecompressor(MemPool *mem_pool, bool reuse, THdfsCompression::type format, boost::scoped_ptr< Codec > *decompressor)</div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a0fecfd76fe1a35dd03bf94155a62a4ad"><div class="ttname"><a href="classimpala_1_1Codec.html#a0fecfd76fe1a35dd03bf94155a62a4ad">impala::Codec::file_extension</a></div><div class="ttdeci">virtual std::string file_extension() const =0</div><div class="ttdoc">File extension to use for this compression codec. </div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a93bd812c02e9838a8397a78cabe494cf"><div class="ttname"><a href="classimpala_1_1Codec.html#a93bd812c02e9838a8397a78cabe494cf">impala::Codec::reuse_buffer_</a></div><div class="ttdeci">bool reuse_buffer_</div><div class="ttdoc">Can we reuse the output buffer or do we need to allocate on each call? </div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00161">codec.h:161</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a19ded9d1e31423b9a5171d19167c4799"><div class="ttname"><a href="classimpala_1_1Codec.html#a19ded9d1e31423b9a5171d19167c4799">impala::Codec::DEFAULT_COMPRESSION</a></div><div class="ttdeci">static const char *const DEFAULT_COMPRESSION</div><div class="ttdoc">These are the codec string representations used in Hadoop. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00044">codec.h:44</a></div></div> |
| <div class="ttc" id="classimpala_1_1Status_html"><div class="ttname"><a href="classimpala_1_1Status.html">impala::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00081">status.h:81</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a8e34e69fbf492c3c03cd417f68f75bd4"><div class="ttname"><a href="classimpala_1_1Codec.html#a8e34e69fbf492c3c03cd417f68f75bd4">impala::Codec::GetCodecName</a></div><div class="ttdeci">static std::string GetCodecName(THdfsCompression::type)</div><div class="ttdoc">Return the name of a compression algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8cc_source.html#l00050">codec.cc:50</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a9914b2157fa4e42d07defd7c1c428000"><div class="ttname"><a href="classimpala_1_1Codec.html#a9914b2157fa4e42d07defd7c1c428000">impala::Codec::GZIP_COMPRESSION</a></div><div class="ttdeci">static const char *const GZIP_COMPRESSION</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00045">codec.h:45</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemPool_html"><div class="ttname"><a href="classimpala_1_1MemPool.html">impala::MemPool</a></div><div class="ttdef"><b>Definition:</b> <a href="mem-pool_8h_source.html#l00077">mem-pool.h:77</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_ab105a8417870709e0636d503977ec02c"><div class="ttname"><a href="classimpala_1_1Codec.html#ab105a8417870709e0636d503977ec02c">impala::Codec::GetHadoopCodecClassName</a></div><div class="ttdeci">static Status GetHadoopCodecClassName(THdfsCompression::type, std::string *out_name)</div><div class="ttdoc">Returns the java class name for the given compression type. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8cc_source.html#l00059">codec.cc:59</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a738cd6628de0972edef858907048f777"><div class="ttname"><a href="classimpala_1_1Codec.html#a738cd6628de0972edef858907048f777">impala::Codec::ProcessBlock</a></div><div class="ttdeci">virtual Status ProcessBlock(bool output_preallocated, int64_t input_length, const uint8_t *input, int64_t *output_length, uint8_t **output)=0</div><div class="ttdoc">Process a block of data, either compressing or decompressing it. </div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a87369178706252f34de2b729503ba266"><div class="ttname"><a href="classimpala_1_1Codec.html#a87369178706252f34de2b729503ba266">impala::Codec::SNAPPY_COMPRESSION</a></div><div class="ttdeci">static const char *const SNAPPY_COMPRESSION</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00047">codec.h:47</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a079688b7a4dde5a4e60467b449901e12"><div class="ttname"><a href="classimpala_1_1Codec.html#a079688b7a4dde5a4e60467b449901e12">impala::Codec::MAX_BLOCK_SIZE</a></div><div class="ttdeci">static const int MAX_BLOCK_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00140">codec.h:140</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_aaa957a37b16d1e65b7f62ca67aa7381a"><div class="ttname"><a href="classimpala_1_1Codec.html#aaa957a37b16d1e65b7f62ca67aa7381a">impala::Codec::Init</a></div><div class="ttdeci">virtual Status Init()=0</div><div class="ttdoc">Initialize the codec. This should only be called once. </div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a0b7de236927fbd920e1e8647396c7175"><div class="ttname"><a href="classimpala_1_1Codec.html#a0b7de236927fbd920e1e8647396c7175">impala::Codec::ProcessBlockStreaming</a></div><div class="ttdeci">virtual Status ProcessBlockStreaming(int64_t input_length, const uint8_t *input, int64_t *input_bytes_read, int64_t *output_length, uint8_t **output, bool *eos)</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00117">codec.h:117</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a3d59e437b1f94ab1597d510af72a4939"><div class="ttname"><a href="classimpala_1_1Codec.html#a3d59e437b1f94ab1597d510af72a4939">impala::Codec::UNKNOWN_CODEC_ERROR</a></div><div class="ttdeci">static const char *const UNKNOWN_CODEC_ERROR</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00048">codec.h:48</a></div></div> |
| <div class="ttc" id="status_8h_html"><div class="ttname"><a href="status_8h.html">status.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a31a2678b525670dcf33d35a359dcc839"><div class="ttname"><a href="classimpala_1_1Codec.html#a31a2678b525670dcf33d35a359dcc839">impala::Codec::ProcessBlock32</a></div><div class="ttdeci">Status ProcessBlock32(bool output_preallocated, int input_length, const uint8_t *input, int *output_length, uint8_t **output)</div><div class="ttdef"><b>Definition:</b> <a href="codec_8cc_source.html#l00181">codec.cc:181</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_afcd266a7fd72165ffeb2e25159374889"><div class="ttname"><a href="classimpala_1_1Codec.html#afcd266a7fd72165ffeb2e25159374889">impala::Codec::out_buffer_</a></div><div class="ttdeci">uint8_t * out_buffer_</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00165">codec.h:165</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a82fbdfbac9ea0b9d14004ebb0e501058"><div class="ttname"><a href="classimpala_1_1Codec.html#a82fbdfbac9ea0b9d14004ebb0e501058">impala::Codec::buffer_length_</a></div><div class="ttdeci">int64_t buffer_length_</div><div class="ttdoc">Length of the output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00168">codec.h:168</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html"><div class="ttname"><a href="classimpala_1_1Codec.html">impala::Codec</a></div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00041">codec.h:41</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a7ec5c623611416c9a873ea242d0d5035"><div class="ttname"><a href="classimpala_1_1Codec.html#a7ec5c623611416c9a873ea242d0d5035">impala::Codec::temp_memory_pool_</a></div><div class="ttdeci">boost::scoped_ptr< MemPool > temp_memory_pool_</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00158">codec.h:158</a></div></div> |
| <div class="ttc" id="mem-pool_8h_html"><div class="ttname"><a href="mem-pool_8h.html">mem-pool.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a17c8e2c231a04155601b70c363127b8c"><div class="ttname"><a href="classimpala_1_1Codec.html#a17c8e2c231a04155601b70c363127b8c">impala::Codec::MaxOutputLen</a></div><div class="ttdeci">virtual int64_t MaxOutputLen(int64_t input_len, const uint8_t *input=NULL)=0</div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a26c0d38f6ee196ba8191b32e76765549"><div class="ttname"><a href="classimpala_1_1Codec.html#a26c0d38f6ee196ba8191b32e76765549">impala::Codec::CodecMap</a></div><div class="ttdeci">std::map< const std::string, const THdfsCompression::type > CodecMap</div><div class="ttdoc">Map from codec string to compression format. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00051">codec.h:51</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a72f5d471b61e14dd058a3a68cfc65772"><div class="ttname"><a href="classimpala_1_1Codec.html#a72f5d471b61e14dd058a3a68cfc65772">impala::Codec::~Codec</a></div><div class="ttdeci">virtual ~Codec()</div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00089">codec.h:89</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a3b0c5338bc8103a6d257e62d0954e148"><div class="ttname"><a href="classimpala_1_1Codec.html#a3b0c5338bc8103a6d257e62d0954e148">impala::Codec::Close</a></div><div class="ttdeci">virtual void Close()</div><div class="ttdoc">Must be called on codec before destructor for final cleanup. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8cc_source.html#l00174">codec.cc:174</a></div></div> |
| <div class="ttc" id="classimpala_1_1Codec_html_a375ea0ba90166ebb055a3d0c9a8936c9"><div class="ttname"><a href="classimpala_1_1Codec.html#a375ea0ba90166ebb055a3d0c9a8936c9">impala::Codec::memory_pool_</a></div><div class="ttdeci">MemPool * memory_pool_</div><div class="ttdoc">Pool to allocate the buffer to hold transformed data. </div><div class="ttdef"><b>Definition:</b> <a href="codec_8h_source.html#l00154">codec.h:154</a></div></div> |
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