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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#include <fcntl.h></span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#include <sys/types.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 "google/protobuf/io/gzip_stream.h"</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "lz4.h"</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "reader.h"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "writer.h"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="keyword">using namespace </span><a class="code" href="namespaceproio.html">proio</a>;</div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">using namespace </span><a class="code" href="namespacegoogle_1_1protobuf.html">google::protobuf</a>;</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html#a8826662f9b377ea0d2959f623db363f5"> 13</a></span> <a class="code" href="classproio_1_1Reader.html#a8826662f9b377ea0d2959f623db363f5">Reader::Reader</a>(<span class="keywordtype">int</span> fd) {</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  this->fd = fd;</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  fileStream = <span class="keyword">new</span> io::FileInputStream(fd);</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  closeFDOnDelete = <span class="keyword">false</span>;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  initBucket();</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> }</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html#ae1ecb4f76f8ea6348ecff9dcc1bfe0cc"> 21</a></span> <a class="code" href="classproio_1_1Reader.html#a8826662f9b377ea0d2959f623db363f5">Reader::Reader</a>(std::string filename) {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  fd = open(filename.c_str(), O_RDONLY);</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordflow">if</span> (fd == -1) <span class="keywordflow">throw</span> fileOpenError;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  fileStream = <span class="keyword">new</span> io::FileInputStream(fd);</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  closeFDOnDelete = <span class="keyword">true</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>  initBucket();</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> }</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> Reader::~Reader() {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">if</span> (bucketHeader) <span class="keyword">delete</span> bucketHeader;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">delete</span> compBucket;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  LZ4F_freeDecompressionContext(dctxPtr);</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">delete</span> bucket;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">delete</span> fileStream;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">if</span> (closeFDOnDelete) close(fd);</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> }</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html#af58d6e7a51441099ff419c6f03d77565"> 39</a></span> <a class="code" href="classproio_1_1Event.html">Event</a> *<a class="code" href="classproio_1_1Reader.html#af58d6e7a51441099ff419c6f03d77565">Reader::Next</a>(<a class="code" href="classproio_1_1Event.html">Event</a> *event, <span class="keywordtype">bool</span> metaOnly) {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">if</span> (event) <span class="keyword">event</span>-><a class="code" href="classproio_1_1Event.html#ae39cdc53bffb0741bfda9c5634b7018b">Clear</a>();</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="keywordflow">while</span> (!bucketHeader || bucketIndex >= bucketHeader->nevents()) {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span> (bucketHeader) bucketIndex -= bucketHeader->nevents();</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  readHeader();</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (!bucketHeader) <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">if</span> (!event) <span class="keyword">event</span> = <span class="keyword">new</span> <a class="code" href="classproio_1_1Event.html">Event</a>();</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">event</span>->metadata = metadata;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (!metaOnly) {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (bucket->BytesRemaining() == 0) readBucket();</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  readFromBucket(event);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  bucketIndex++;</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>  <span class="keywordflow">return</span> event;</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> </div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html#a8da8aea30ccd4ebcda49b5abf1fa1185"> 59</a></span> <span class="keywordtype">bool</span> <a class="code" href="classproio_1_1Reader.html#af58d6e7a51441099ff419c6f03d77565">Reader::Next</a>(std::string *data) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (!data) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">while</span> (!bucketHeader || bucketIndex >= bucketHeader->nevents()) {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (bucketHeader) bucketIndex -= bucketHeader->nevents();</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  readHeader();</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">if</span> (!bucketHeader) <span class="keywordflow">return</span> <span class="keyword">false</span>;</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="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">if</span> (bucket->BytesRemaining() == 0) readBucket();</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  readFromBucket(data);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="classproio_1_1Reader.html#afd1326802327d7f4241188c4eb8a7b4f"> 74</a></span> uint64_t <a class="code" href="classproio_1_1Reader.html#afd1326802327d7f4241188c4eb8a7b4f">Reader::Skip</a>(uint64_t nEvents) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  uint64_t nSkipped = 0;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  uint64_t startIndex = bucketIndex;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  bucketIndex += nEvents;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">while</span> (!bucketHeader || bucketIndex >= bucketHeader->nevents()) {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (bucketHeader) {</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  uint64_t nBucketEvents = bucketHeader->nevents();</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  bucketIndex -= nBucketEvents;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  nSkipped += nBucketEvents - startIndex;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (nBucketEvents > 0 && bucket->BytesRemaining() == 0)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> (!fileStream->Skip(bucketHeader->bucketsize())) <span class="keywordflow">throw</span> ioError;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  readHeader();</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (!bucketHeader) <span class="keywordflow">return</span> nSkipped;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  startIndex = 0;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  nSkipped += bucketIndex - startIndex;</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="keywordflow">return</span> nSkipped;</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_1Reader.html#a841aff8caf5ca4436555daad3b24a57b"> 96</a></span> <span class="keywordtype">void</span> <a class="code" href="classproio_1_1Reader.html#a841aff8caf5ca4436555daad3b24a57b">Reader::SeekToStart</a>() {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">delete</span> fileStream;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> (lseek(fd, 0, SEEK_SET) == -1) <span class="keywordflow">throw</span> seekError;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  fileStream = <span class="keyword">new</span> io::FileInputStream(fd);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  metadata.clear();</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  bucketIndex = 0;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  readHeader();</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keywordtype">void</span> Reader::initBucket() {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  compBucket = <span class="keyword">new</span> <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a>(0);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  bucketHeader = NULL;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  bucketEventsRead = 0;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  bucketIndex = 0;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  LZ4F_createDecompressionContext(&dctxPtr, LZ4F_VERSION);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  bucket = <span class="keyword">new</span> <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a>(0);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keywordtype">void</span> Reader::readFromBucket(<a class="code" href="classproio_1_1Event.html">Event</a> *event) {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">auto</span> stream = <span class="keyword">new</span> io::CodedInputStream(bucket);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">while</span> (bucketEventsRead <= bucketIndex) {</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  uint32_t protoSize;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span> (!stream->ReadLittleEndian32(&protoSize)) {</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">throw</span> corruptBucketError;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (event && bucketEventsRead == bucketIndex) {</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">auto</span> eventLimit = stream->PushLimit(protoSize);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">auto</span> eventProto = <span class="keyword">event</span>->getProto();</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (!eventProto->MergeFromCodedStream(stream) || !stream->ConsumedEntireMessage()) {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">throw</span> deserializationError;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">event</span>->SetDescriptorPool(DescriptorPool());</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  stream->PopLimit(eventLimit);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!stream->Skip(protoSize)) {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">throw</span> corruptBucketError;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  bucketEventsRead++;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  bucketIndex++;</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">delete</span> stream;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keywordtype">void</span> Reader::readFromBucket(std::string *data) {</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">auto</span> stream = <span class="keyword">new</span> io::CodedInputStream(bucket);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">while</span> (bucketEventsRead <= bucketIndex) {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  uint32_t protoSize;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (!stream->ReadLittleEndian32(&protoSize)) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">throw</span> corruptBucketError;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (data && bucketEventsRead == bucketIndex) {</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  data->resize(protoSize);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> (!stream->ReadString(data, protoSize)) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">throw</span> corruptBucketError;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!stream->Skip(protoSize)) {</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">throw</span> corruptBucketError;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</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>  bucketEventsRead++;</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>  bucketIndex++;</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>  <span class="keyword">delete</span> stream;</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> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keywordtype">void</span> Reader::readHeader() {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (bucketHeader) {</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">delete</span> bucketHeader;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  bucketHeader = NULL;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  bucketEventsRead = 0;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  compBucket->Reset(0);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  bucket->Reset(0);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">auto</span> stream = <span class="keyword">new</span> io::CodedInputStream(fileStream);</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  syncToMagic(stream);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  uint32_t headerSize;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span> (!stream->ReadLittleEndian32(&headerSize)) {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  }</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keyword">auto</span> headerLimit = stream->PushLimit(headerSize);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  bucketHeader = <span class="keyword">new</span> proto::BucketHeader;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (!bucketHeader->MergeFromCodedStream(stream) || !stream->ConsumedEntireMessage()) {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">throw</span> deserializationError;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  stream->PopLimit(headerLimit);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// Set metadata for future events</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> keyValuePair : bucketHeader->metadata())</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  metadata[keyValuePair.first] = std::make_shared<std::string>(keyValuePair.second);</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// Add descriptors to pool owned by reader</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> std::string &fdString : bucketHeader->filedescriptor()) {</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  FileDescriptorProto fdProto;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  fdProto.ParseFromString(fdString);</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  descriptorPool.BuildFile(fdProto);</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keywordtype">void</span> Reader::readBucket() {</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keyword">auto</span> stream = <span class="keyword">new</span> io::CodedInputStream(fileStream);</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  uint64_t bucketSize = bucketHeader->bucketsize();</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  compBucket->Reset(bucketSize);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (!stream->ReadRaw(compBucket->Bytes(), bucketSize)) {</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">throw</span> corruptBucketError;</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">delete</span> stream;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">switch</span> (bucketHeader->compression()) {</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">case</span> LZ4: {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  bucket->Reset(dctxPtr, compBucket);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">case</span> GZIP: {</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  io::GzipInputStream *gzipStream = <span class="keyword">new</span> io::GzipInputStream(compBucket);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  bucket->Reset(*gzipStream);</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">delete</span> gzipStream;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a> *tmpBucket = bucket;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  bucket = compBucket;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  compBucket = tmpBucket;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  }</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> }</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> uint64_t Reader::syncToMagic(io::CodedInputStream *stream) {</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  uint8_t num;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  uint64_t nRead = 0;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">while</span> (stream->ReadRaw(&num, 1)) {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  nRead++;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (num == magicBytes[0]) {</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordtype">bool</span> goodSeq = <span class="keyword">true</span>;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < 16; i++) {</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">if</span> (!stream->ReadRaw(&num, 1)) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  nRead++;</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span> (num != magicBytes[i]) {</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  goodSeq = <span class="keyword">false</span>;</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  }</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">if</span> (goodSeq) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">return</span> nRead;</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> }</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> BucketInputStream::BucketInputStream(uint64_t size) {</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  offset = 0;</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  bytes.resize(size);</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  this->size = size;</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> BucketInputStream::~BucketInputStream() { ; }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> BucketInputStream::Next(<span class="keyword">const</span> <span class="keywordtype">void</span> **data, <span class="keywordtype">int</span> *size) {</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  *data = &bytes[offset];</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  *size = this->size - offset;</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  offset = this->size;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">if</span> (*size == 0) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> }</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> BucketInputStream::BackUp(<span class="keywordtype">int</span> count) { offset -= count; }</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> BucketInputStream::Skip(<span class="keywordtype">int</span> count) {</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  offset += count;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (offset > size) {</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  offset = size;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> }</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="keyword">inline</span> int64 BucketInputStream::ByteCount()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> offset; }</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> uint8_t *BucketInputStream::Bytes() { <span class="keywordflow">return</span> &bytes[0]; }</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> uint64_t BucketInputStream::BytesRemaining() { <span class="keywordflow">return</span> size - offset; }</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> </div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="keywordtype">void</span> BucketInputStream::Reset(uint64_t size) {</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  offset = 0;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">if</span> (bytes.size() < size) bytes.resize(size);</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  this->size = size;</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> uint64_t BucketInputStream::Reset(io::ZeroCopyInputStream &stream) {</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  Reset(0);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  uint8_t *data;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordtype">int</span> size;</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">while</span> (stream.Next((<span class="keyword">const</span> <span class="keywordtype">void</span> **)&data, &size)) {</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  offset = this->size;</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  this->size += size;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">if</span> (this->size > bytes.size()) bytes.resize(this->size);</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  std::memcpy(&bytes[offset], data, size);</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  offset = 0;</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">return</span> this->size;</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> }</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> uint64_t BucketInputStream::Reset(LZ4F_dctx *dctxPtr, <a class="code" href="classproio_1_1BucketInputStream.html">BucketInputStream</a> *compBucket) {</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  offset = 0;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  size = bytes.size();</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">if</span> (size == 0) Reset(minBucketWriteWindow);</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordtype">int</span> srcSize;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  uint8_t *srcBuffer;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  compBucket->Next((<span class="keyword">const</span> <span class="keywordtype">void</span> **)&srcBuffer, &srcSize);</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordtype">int</span> srcBytesRemaining = srcSize;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordtype">int</span> dstSize;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  uint8_t *dstBuffer;</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordtype">size_t</span> hint = -1;</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">while</span> (srcBytesRemaining > 0) {</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  Next((<span class="keyword">const</span> <span class="keywordtype">void</span> **)&dstBuffer, &dstSize);</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordtype">size_t</span> srcSizeTmp = srcSize;</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordtype">size_t</span> dstSizeTmp = dstSize;</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  hint = LZ4F_decompress(dctxPtr, dstBuffer, &dstSizeTmp, srcBuffer, &srcSizeTmp, NULL);</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (LZ4F_isError(hint)) <span class="keywordflow">throw</span> badLZ4FrameError;</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  srcBytesRemaining -= srcSizeTmp;</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  BackUp(dstSize - dstSizeTmp);</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> (offset == size) {</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  size += minBucketWriteWindow;</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  bytes.resize(size);</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  }</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  compBucket->BackUp(srcBytesRemaining);</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  compBucket->Next((<span class="keyword">const</span> <span class="keywordtype">void</span> **)&srcBuffer, &srcSize);</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  size = offset;</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  offset = 0;</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">if</span> (hint != 0) {</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  LZ4F_resetDecompressionContext(dctxPtr);</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">throw</span> badLZ4FrameError;</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  }</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">return</span> size;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> }</div><div class="ttc" id="classproio_1_1Reader_html_a841aff8caf5ca4436555daad3b24a57b"><div class="ttname"><a href="classproio_1_1Reader.html#a841aff8caf5ca4436555daad3b24a57b">proio::Reader::SeekToStart</a></div><div class="ttdeci">void SeekToStart()</div><div class="ttdef"><b>Definition:</b> <a href="reader_8cc_source.html#l00096">reader.cc: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="namespacegoogle_1_1protobuf_html"><div class="ttname"><a href="namespacegoogle_1_1protobuf.html">protobuf</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_1Event_html_ae39cdc53bffb0741bfda9c5634b7018b"><div class="ttname"><a href="classproio_1_1Event.html#ae39cdc53bffb0741bfda9c5634b7018b">proio::Event::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdef"><b>Definition:</b> <a href="event_8cc_source.html#l00191">event.cc:191</a></div></div>
<div class="ttc" id="classproio_1_1Reader_html_a8826662f9b377ea0d2959f623db363f5"><div class="ttname"><a href="classproio_1_1Reader.html#a8826662f9b377ea0d2959f623db363f5">proio::Reader::Reader</a></div><div class="ttdeci">Reader(int fd)</div><div class="ttdef"><b>Definition:</b> <a href="reader_8cc_source.html#l00013">reader.cc:13</a></div></div>
<div class="ttc" id="classproio_1_1Reader_html_af58d6e7a51441099ff419c6f03d77565"><div class="ttname"><a href="classproio_1_1Reader.html#af58d6e7a51441099ff419c6f03d77565">proio::Reader::Next</a></div><div class="ttdeci">Event * Next(Event *recycledEvent=NULL, bool metadataOnly=false)</div><div class="ttdef"><b>Definition:</b> <a href="reader_8cc_source.html#l00039">reader.cc:39</a></div></div>
<div class="ttc" id="classproio_1_1Reader_html_afd1326802327d7f4241188c4eb8a7b4f"><div class="ttname"><a href="classproio_1_1Reader.html#afd1326802327d7f4241188c4eb8a7b4f">proio::Reader::Skip</a></div><div class="ttdeci">uint64_t Skip(uint64_t nEvents)</div><div class="ttdef"><b>Definition:</b> <a href="reader_8cc_source.html#l00074">reader.cc:74</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>
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