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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef PROIO_READER_H</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define PROIO_READER_H</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <cstring></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <mutex></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "google/protobuf/io/zero_copy_stream_impl.h"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "lz4frame.h"</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "event.h"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">namespace </span><a class="code" href="namespaceproio.html">proio</a> {</div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="classproio_1_1BucketInputStream.html"> 14</a></span> <span class="keyword">class </span><a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a> : <span class="keyword">public</span> google::protobuf::io::ZeroCopyInputStream {</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a>(uint64_t size);</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keyword">virtual</span> ~<a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a>();</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keywordtype">bool</span> Next(<span class="keyword">const</span> <span class="keywordtype">void</span> **data, <span class="keywordtype">int</span> *size) <span class="keyword">override</span>;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keywordtype">void</span> BackUp(<span class="keywordtype">int</span> count) <span class="keyword">override</span>;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordtype">bool</span> Skip(<span class="keywordtype">int</span> count) <span class="keyword">override</span>;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  google::protobuf::int64 ByteCount() <span class="keyword">const override</span>;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  uint8_t *Bytes();</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  uint64_t BytesRemaining();</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordtype">void</span> Reset(uint64_t size);</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  uint64_t Reset(google::protobuf::io::ZeroCopyInputStream &stream);</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  uint64_t Reset(LZ4F_dctx *dctxPtr, <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a> *compBucket);</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>  <span class="keyword">private</span>:</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  uint64_t offset;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  std::vector<uint8_t> bytes;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  uint64_t size;</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="l00038"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html"> 38</a></span> <span class="keyword">class </span><a class="code" href="classproio_1_1Reader.html">Reader</a> : <span class="keyword">public</span> std::mutex {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="classproio_1_1Reader.html">Reader</a>(<span class="keywordtype">int</span> fd);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classproio_1_1Reader.html">Reader</a>(std::string filename);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">virtual</span> ~<a class="code" href="classproio_1_1Reader.html">Reader</a>();</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classproio_1_1Event.html">Event</a> *Next(<a class="code" href="classproio_1_1Event.html">Event</a> *recycledEvent = NULL, <span class="keywordtype">bool</span> metadataOnly = <span class="keyword">false</span>);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">bool</span> Next(std::string *data);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  uint64_t Skip(uint64_t nEvents);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">void</span> SeekToStart();</div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html#aa7e4eb70b07c2624be3653e734f0b724"> 73</a></span>  <span class="keyword">const</span> google::protobuf::DescriptorPool *<a class="code" href="classproio_1_1Reader.html#aa7e4eb70b07c2624be3653e734f0b724">DescriptorPool</a>() { <span class="keywordflow">return</span> &descriptorPool; }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">void</span> initBucket();</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">void</span> readFromBucket(<a class="code" href="classproio_1_1Event.html">Event</a> *event);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">void</span> readFromBucket(std::string *data);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">void</span> readHeader();</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">void</span> readBucket();</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  uint64_t syncToMagic(google::protobuf::io::CodedInputStream *stream);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a> *compBucket;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  google::protobuf::io::FileInputStream *fileStream;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">int</span> fd;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">bool</span> closeFDOnDelete;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  proto::BucketHeader *bucketHeader;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  uint64_t bucketEventsRead;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  uint64_t bucketIndex;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  LZ4F_dctx *dctxPtr;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a> *bucket;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  std::map<std::string, std::shared_ptr<const std::string>> metadata;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  google::protobuf::DescriptorPool descriptorPool;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> };</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classproio_1_1FileOpenError.html"> 96</a></span> <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="classproio_1_1FileOpenError.html">FileOpenError</a> : <span class="keyword">public</span> std::exception {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *what() <span class="keyword">const</span> <span class="keywordflow">throw</span>() { <span class="keywordflow">return</span> <span class="stringliteral">"Failed to open file for reading"</span>; }</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> } fileOpenError;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classproio_1_1DeserializationError.html"> 100</a></span> <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="classproio_1_1DeserializationError.html">DeserializationError</a> : <span class="keyword">public</span> std::exception {</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *what() <span class="keyword">const</span> <span class="keywordflow">throw</span>() { <span class="keywordflow">return</span> <span class="stringliteral">"Failed to deserialize message"</span>; }</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> } deserializationError;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="classproio_1_1CorruptBucketError.html"> 104</a></span> <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="classproio_1_1CorruptBucketError.html">CorruptBucketError</a> : <span class="keyword">public</span> std::exception {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *what() <span class="keyword">const</span> <span class="keywordflow">throw</span>() { <span class="keywordflow">return</span> <span class="stringliteral">"Bucket is corrupt"</span>; }</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> } corruptBucketError;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classproio_1_1BadLZ4FrameError.html"> 108</a></span> <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="classproio_1_1BadLZ4FrameError.html">BadLZ4FrameError</a> : <span class="keyword">public</span> std::exception {</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *what() <span class="keyword">const</span> <span class="keywordflow">throw</span>() { <span class="keywordflow">return</span> <span class="stringliteral">"Bad LZ4 frame"</span>; }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> } badLZ4FrameError;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classproio_1_1SeekError.html"> 112</a></span> <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="classproio_1_1SeekError.html">SeekError</a> : <span class="keyword">public</span> std::exception {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *what() <span class="keyword">const</span> <span class="keywordflow">throw</span>() { <span class="keywordflow">return</span> <span class="stringliteral">"Failed to seek file"</span>; }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> } seekError;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="classproio_1_1IOError.html"> 116</a></span> <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="classproio_1_1IOError.html">IOError</a> : <span class="keyword">public</span> std::exception {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *what() <span class="keyword">const</span> <span class="keywordflow">throw</span>() { <span class="keywordflow">return</span> <span class="stringliteral">"Unexpected IO Error"</span>; }</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> } ioError;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> } <span class="comment">// namespace proio</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> <span class="preprocessor">#endif // PROIO_READER_H</span></div><div class="ttc" id="classproio_1_1Reader_html"><div class="ttname"><a href="classproio_1_1Reader.html">proio::Reader</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00038">reader.h:38</a></div></div>
<div class="ttc" id="classproio_1_1SeekError_html"><div class="ttname"><a href="classproio_1_1SeekError.html">proio::SeekError</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00112">reader.h:112</a></div></div>
<div class="ttc" id="classproio_1_1FileOpenError_html"><div class="ttname"><a href="classproio_1_1FileOpenError.html">proio::FileOpenError</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00096">reader.h:96</a></div></div>
<div class="ttc" id="namespaceproio_html"><div class="ttname"><a href="namespaceproio.html">proio</a></div><div class="ttdef"><b>Definition:</b> <a href="event_8h_source.html#l00011">event.h:11</a></div></div>
<div class="ttc" id="classproio_1_1BucketInputStream_html"><div class="ttname"><a href="classproio_1_1BucketInputStream.html">proio::BucketInputStream</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00014">reader.h:14</a></div></div>
<div class="ttc" id="classproio_1_1IOError_html"><div class="ttname"><a href="classproio_1_1IOError.html">proio::IOError</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00116">reader.h:116</a></div></div>
<div class="ttc" id="classproio_1_1CorruptBucketError_html"><div class="ttname"><a href="classproio_1_1CorruptBucketError.html">proio::CorruptBucketError</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00104">reader.h:104</a></div></div>
<div class="ttc" id="classproio_1_1BadLZ4FrameError_html"><div class="ttname"><a href="classproio_1_1BadLZ4FrameError.html">proio::BadLZ4FrameError</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00108">reader.h:108</a></div></div>
<div class="ttc" id="classproio_1_1Reader_html_aa7e4eb70b07c2624be3653e734f0b724"><div class="ttname"><a href="classproio_1_1Reader.html#aa7e4eb70b07c2624be3653e734f0b724">proio::Reader::DescriptorPool</a></div><div class="ttdeci">const google::protobuf::DescriptorPool * DescriptorPool()</div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00073">reader.h:73</a></div></div>
<div class="ttc" id="classproio_1_1Event_html"><div class="ttname"><a href="classproio_1_1Event.html">proio::Event</a></div><div class="ttdef"><b>Definition:</b> <a href="event_8h_source.html#l00014">event.h:14</a></div></div>
<div class="ttc" id="classproio_1_1DeserializationError_html"><div class="ttname"><a href="classproio_1_1DeserializationError.html">proio::DeserializationError</a></div><div class="ttdef"><b>Definition:</b> <a href="reader_8h_source.html#l00100">reader.h:100</a></div></div>
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