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| <li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_14a988756d30161f7e1f48b05d03905d.html">singa</a></li><li class="navelem"><a class="el" href="dir_953eafc3caccd34fc2601f376f19d1ef.html">io</a></li> </ul> |
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| <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef SINGA_IO_WRITER_H_</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define SINGA_IO_WRITER_H_</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="preprocessor">#include <cstring></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <fstream></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "singa/singa_config.h"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#ifdef USE_LMDB</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <lmdb.h></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <sys/stat.h></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#endif // USE_LMDB</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span><a class="code" href="namespacesinga.html">singa</a> {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>io {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">using</span> std::string;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">enum</span> Mode { kCreate, kAppend };</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classsinga_1_1io_1_1Writer.html"> 42</a></span> <span class="keyword">class </span><a class="code" href="classsinga_1_1io_1_1Writer.html">Writer</a> {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classsinga_1_1io_1_1Writer.html#aa5a4ed9aae85f2f879563d094a6cc4f1"> 46</a></span>  <span class="keyword">virtual</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#aa5a4ed9aae85f2f879563d094a6cc4f1">~Writer</a>() {}</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a2427e9a325544ca985b5b6729227f3ef">Open</a>(<span class="keyword">const</span> std::string &path, Mode mode) = 0;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>() = 0;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#afa52a9053af2363cb4680217a10c038a">Write</a>(<span class="keyword">const</span> std::string &key, <span class="keyword">const</span> std::string &value) = 0;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a6dd928130b77f215b90e87b42137da48">Flush</a>() = 0;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> };</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classsinga_1_1io_1_1BinFileWriter.html"> 77</a></span> <span class="keyword">class </span><a class="code" href="classsinga_1_1io_1_1BinFileWriter.html">BinFileWriter</a> : <span class="keyword">public</span> <a class="code" href="classsinga_1_1io_1_1Writer.html">Writer</a> {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  ~<a class="code" href="classsinga_1_1io_1_1BinFileWriter.html">BinFileWriter</a>() { <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>(); }</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a2427e9a325544ca985b5b6729227f3ef">Open</a>(<span class="keyword">const</span> std::string &path, Mode mode) <span class="keyword">override</span>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a2427e9a325544ca985b5b6729227f3ef">Open</a>(<span class="keyword">const</span> std::string &path, Mode mode, <span class="keywordtype">int</span> capacity);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#afa52a9053af2363cb4680217a10c038a">Write</a>(<span class="keyword">const</span> std::string &key, <span class="keyword">const</span> std::string &value) <span class="keyword">override</span>;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a6dd928130b77f215b90e87b42137da48">Flush</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classsinga_1_1io_1_1BinFileWriter.html#ab3a9f9671370e94505aa41132a4d5e12"> 91</a></span>  <span class="keyword">inline</span> std::string <a class="code" href="classsinga_1_1io_1_1BinFileWriter.html#ab3a9f9671370e94505aa41132a4d5e12">path</a>() { <span class="keywordflow">return</span> path_; }</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">bool</span> OpenFile();</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  std::string path_ = <span class="stringliteral">""</span>;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  Mode mode_;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  std::ofstream fdat_;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">char</span> *buf_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">int</span> capacity_ = 10485760;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">int</span> bufsize_ = 0;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> kMagicWord[2] = {<span class="charliteral">'s'</span>, <span class="charliteral">'g'</span>};</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> };</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="classsinga_1_1io_1_1TextFileWriter.html"> 114</a></span> <span class="keyword">class </span><a class="code" href="classsinga_1_1io_1_1TextFileWriter.html">TextFileWriter</a> : <span class="keyword">public</span> <a class="code" href="classsinga_1_1io_1_1Writer.html">Writer</a> {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  ~<a class="code" href="classsinga_1_1io_1_1TextFileWriter.html">TextFileWriter</a>() { <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>(); }</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a2427e9a325544ca985b5b6729227f3ef">Open</a>(<span class="keyword">const</span> std::string &path, Mode mode) <span class="keyword">override</span>;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#afa52a9053af2363cb4680217a10c038a">Write</a>(<span class="keyword">const</span> std::string &key, <span class="keyword">const</span> std::string &value) <span class="keyword">override</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a6dd928130b77f215b90e87b42137da48">Flush</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classsinga_1_1io_1_1TextFileWriter.html#aa68b02d34ab60ee7e8b350370a18c0a4"> 126</a></span>  <span class="keyword">inline</span> std::string <a class="code" href="classsinga_1_1io_1_1TextFileWriter.html#aa68b02d34ab60ee7e8b350370a18c0a4">path</a>() { <span class="keywordflow">return</span> path_; }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  std::string path_ = <span class="stringliteral">""</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  Mode mode_;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  std::ofstream fdat_;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> };</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#ifdef USE_LMDB</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">class </span>LMDBWriter : <span class="keyword">public</span> <a class="code" href="classsinga_1_1io_1_1Writer.html">Writer</a> {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  ~LMDBWriter() { <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>(); }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a2427e9a325544ca985b5b6729227f3ef">Open</a>(<span class="keyword">const</span> std::string &path, Mode mode) <span class="keyword">override</span>;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">Close</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">bool</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#afa52a9053af2363cb4680217a10c038a">Write</a>(<span class="keyword">const</span> std::string &key, <span class="keyword">const</span> std::string &value) <span class="keyword">override</span>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1io_1_1Writer.html#a6dd928130b77f215b90e87b42137da48">Flush</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">inline</span> std::string path() { <span class="keywordflow">return</span> path_; }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">void</span> DoubleMapSize();</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> MDB_CHECK(<span class="keywordtype">int</span> mdb_status);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  std::string path_ = <span class="stringliteral">""</span>;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  Mode mode_;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  MDB_env *mdb_env_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  std::vector<string> keys, values;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> };</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#endif // USE_LMDB</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> } <span class="comment">// namespace io</span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> } <span class="comment">// namespace singa</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> <span class="preprocessor">#endif // SINGA_IO_WRITER_H_</span></div><div class="ttc" id="classsinga_1_1io_1_1Writer_html"><div class="ttname"><a href="classsinga_1_1io_1_1Writer.html">singa::io::Writer</a></div><div class="ttdoc">General Writer that provides functions for writing tuples. </div><div class="ttdef"><b>Definition:</b> writer.h:42</div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1Writer_html_add7c77805b900595c2da748a4df8c448"><div class="ttname"><a href="classsinga_1_1io_1_1Writer.html#add7c77805b900595c2da748a4df8c448">singa::io::Writer::Close</a></div><div class="ttdeci">virtual void Close()=0</div><div class="ttdoc">Release resources. </div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1Writer_html_a2427e9a325544ca985b5b6729227f3ef"><div class="ttname"><a href="classsinga_1_1io_1_1Writer.html#a2427e9a325544ca985b5b6729227f3ef">singa::io::Writer::Open</a></div><div class="ttdeci">virtual bool Open(const std::string &path, Mode mode)=0</div><div class="ttdoc">Open a file. </div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1BinFileWriter_html"><div class="ttname"><a href="classsinga_1_1io_1_1BinFileWriter.html">singa::io::BinFileWriter</a></div><div class="ttdoc">BinFile stores training/validation/test tuples. </div><div class="ttdef"><b>Definition:</b> writer.h:77</div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1BinFileWriter_html_ab3a9f9671370e94505aa41132a4d5e12"><div class="ttname"><a href="classsinga_1_1io_1_1BinFileWriter.html#ab3a9f9671370e94505aa41132a4d5e12">singa::io::BinFileWriter::path</a></div><div class="ttdeci">std::string path()</div><div class="ttdoc">return path to binary file </div><div class="ttdef"><b>Definition:</b> writer.h:91</div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1TextFileWriter_html"><div class="ttname"><a href="classsinga_1_1io_1_1TextFileWriter.html">singa::io::TextFileWriter</a></div><div class="ttdoc">TextFileWriter write training/validation/test tuples in CSV file. </div><div class="ttdef"><b>Definition:</b> writer.h:114</div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1Writer_html_aa5a4ed9aae85f2f879563d094a6cc4f1"><div class="ttname"><a href="classsinga_1_1io_1_1Writer.html#aa5a4ed9aae85f2f879563d094a6cc4f1">singa::io::Writer::~Writer</a></div><div class="ttdeci">virtual ~Writer()</div><div class="ttdoc">In case that users forget to call Close() to release resources, e.g., memory, you can release them he...</div><div class="ttdef"><b>Definition:</b> writer.h:46</div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1Writer_html_afa52a9053af2363cb4680217a10c038a"><div class="ttname"><a href="classsinga_1_1io_1_1Writer.html#afa52a9053af2363cb4680217a10c038a">singa::io::Writer::Write</a></div><div class="ttdeci">virtual bool Write(const std::string &key, const std::string &value)=0</div><div class="ttdoc">Write a key-value tuple. </div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1Writer_html_a6dd928130b77f215b90e87b42137da48"><div class="ttname"><a href="classsinga_1_1io_1_1Writer.html#a6dd928130b77f215b90e87b42137da48">singa::io::Writer::Flush</a></div><div class="ttdeci">virtual void Flush()=0</div><div class="ttdoc">Flush writing buffer if it has. </div></div> |
| <div class="ttc" id="namespacesinga_html"><div class="ttname"><a href="namespacesinga.html">singa</a></div><div class="ttdoc">Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements...</div><div class="ttdef"><b>Definition:</b> common.h:48</div></div> |
| <div class="ttc" id="classsinga_1_1io_1_1TextFileWriter_html_aa68b02d34ab60ee7e8b350370a18c0a4"><div class="ttname"><a href="classsinga_1_1io_1_1TextFileWriter.html#aa68b02d34ab60ee7e8b350370a18c0a4">singa::io::TextFileWriter::path</a></div><div class="ttdeci">std::string path()</div><div class="ttdoc">return path to text file </div><div class="ttdef"><b>Definition:</b> writer.h:126</div></div> |
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