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| <div class="title">scanner-context.inline.h</div> </div> |
| </div><!--header--> |
| <div class="contents"> |
| <a href="scanner-context_8inline_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_EXEC_SCANNER_CONTEXT_INLINE_H</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"></span><span class="preprocessor">#define IMPALA_EXEC_SCANNER_CONTEXT_INLINE_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="scanner-context_8h.html">exec/scanner-context.h</a>"</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="read-write-util_8h.html">exec/read-write-util.h</a>"</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "<a class="code" href="string-buffer_8h.html">runtime/string-buffer.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="keyword">using namespace </span>impala;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565"> 26</a></span> <span class="preprocessor">#define RETURN_IF_FALSE(x) if (UNLIKELY(!(x))) return false</span></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#acfded8cb494dbda9eb700d32295e87be"> 31</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#acfded8cb494dbda9eb700d32295e87be">ScannerContext::Stream::GetBytes</a>(int64_t requested_len, uint8_t** buffer,</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  int64_t* out_len, <a class="code" href="classimpala_1_1Status.html">Status</a>* status, <span class="keywordtype">bool</span> peek) {</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a>(requested_len < 0)) {</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  *status = <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a8429f56ab45c9b7272bd56dd787010af">ReportInvalidRead</a>(requested_len);</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  }</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a>(requested_len == 0)) {</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  *out_len = 0;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  }</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a262afcfe437f4addb13fb1b47a6a7086">LIKELY</a>(requested_len <= *<a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a95b2c26a43123d46e4ad1c4048b27dfa">output_buffer_bytes_left_</a>)) {</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  *out_len = requested_len;</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  *buffer = *<a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a9e82d3874befb89e230831b485c46446">output_buffer_pos_</a>;</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a262afcfe437f4addb13fb1b47a6a7086">LIKELY</a>(!peek)) {</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#acc00634e4f2a30470a856930ab8c807a">total_bytes_returned_</a> += *out_len;</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  *<a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a9e82d3874befb89e230831b485c46446">output_buffer_pos_</a> += *out_len;</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  *<a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a95b2c26a43123d46e4ad1c4048b27dfa">output_buffer_bytes_left_</a> -= *out_len;</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  DCHECK_GT(requested_len, 0);</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  *status = <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a02d14f962e1c9b155fc4a2a256623aef">GetBytesInternal</a>(requested_len, buffer, peek, out_len);</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> status-><a class="code" href="classimpala_1_1Status.html#a95ba859e42fe93445b340533220836ac">ok</a>();</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> }</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#afb0c82e035be4d8bd37009dbc1739712"> 56</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#afb0c82e035be4d8bd37009dbc1739712">ScannerContext::Stream::ReadBytes</a>(int64_t length, uint8_t** buf,</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="classimpala_1_1Status.html">Status</a>* status, <span class="keywordtype">bool</span> peek) {</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  int64_t bytes_read;</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(GetBytes(length, buf, &bytes_read, status, peek));</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a>(length != bytes_read)) {</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  DCHECK_LT(bytes_read, length);</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  *status = ReportIncompleteRead(length, bytes_read);</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> <span class="keyword">true</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="l00070"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#ac1bae8ae5208e9d2c2547bc0a7efddd6"> 70</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#ac1bae8ae5208e9d2c2547bc0a7efddd6">ScannerContext::Stream::SkipBytes</a>(int64_t length, <a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  uint8_t* dummy_buf;</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  int64_t bytes_read;</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(GetBytes(length, &dummy_buf, &bytes_read, status));</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a>(length != bytes_read)) {</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  DCHECK_LT(bytes_read, length);</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  *status = ReportIncompleteRead(length, bytes_read);</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div> |
| <div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#ab835ae2f5139d78ddd27ae0bbe6a974f"> 82</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#ab835ae2f5139d78ddd27ae0bbe6a974f">ScannerContext::Stream::SkipText</a>(<a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  uint8_t* dummy_buffer;</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  int64_t bytes_read;</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> ReadText(&dummy_buffer, &bytes_read, status);</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> </div> |
| <div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#a513addc2be66b361016ed03b43b676b2"> 88</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a513addc2be66b361016ed03b43b676b2">ScannerContext::Stream::ReadText</a>(uint8_t** buf, int64_t* len,</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadVLong(len, status));</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadBytes(*len, buf, status));</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div> |
| <div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#ad20cbd2da52b6d2c07e6c3593a2c6b1c"> 95</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#ad20cbd2da52b6d2c07e6c3593a2c6b1c">ScannerContext::Stream::ReadBoolean</a>(<span class="keywordtype">bool</span>* b, <a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  uint8_t* val;</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadBytes(1, &val, status));</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  *b = (*val != 0);</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> }</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div> |
| <div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#a6fb117924bf5f7603db6e7bbdc2d214c"> 102</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a6fb117924bf5f7603db6e7bbdc2d214c">ScannerContext::Stream::ReadInt</a>(int32_t* val, <a class="code" href="classimpala_1_1Status.html">Status</a>* status, <span class="keywordtype">bool</span> peek) {</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  uint8_t* bytes;</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadBytes(<span class="keyword">sizeof</span>(uint32_t), &bytes, status, peek));</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  *val = ReadWriteUtil::GetInt<uint32_t>(bytes);</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div> |
| <div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#a5cf574fabb846f92a0b6a9078920c7ef"> 109</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a5cf574fabb846f92a0b6a9078920c7ef">ScannerContext::Stream::ReadVInt</a>(int32_t* value, <a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  int64_t vlong;</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadVLong(&vlong, status));</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  *value = <span class="keyword">static_cast<</span>int32_t<span class="keyword">></span>(vlong);</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> }</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="classimpala_1_1ScannerContext_1_1Stream.html#a990e6a7dfe45fdd33c36d33c66a1ed6d"> 116</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#a990e6a7dfe45fdd33c36d33c66a1ed6d">ScannerContext::Stream::ReadVLong</a>(int64_t* value, <a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  int8_t* firstbyte;</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  uint8_t* bytes;</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadBytes(1, reinterpret_cast<uint8_t**>(&firstbyte), status));</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">int</span> len = <a class="code" href="classimpala_1_1ReadWriteUtil.html#a0a2f35674a0eed066511aa202454510f">ReadWriteUtil::DecodeVIntSize</a>(*firstbyte);</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (len > <a class="code" href="classimpala_1_1ReadWriteUtil.html#a525af28d23515345d12cdc5c685670aa">ReadWriteUtil::MAX_VINT_LEN</a>) {</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  *status = <a class="code" href="classimpala_1_1Status.html">Status</a>(<span class="stringliteral">"ReadVLong: size is too big"</span>);</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</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="keywordflow">if</span> (len == 1) {</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  *value = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(*firstbyte);</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  --len;</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadBytes(len, &bytes, status));</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>  *value = 0;</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>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < len; i++) {</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  *value = (*value << 8) | (bytes[i] & 0xFF);</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</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="keywordflow">if</span> (<a class="code" href="classimpala_1_1ReadWriteUtil.html#a2593f928f5cdd47690b5dc6b3dd2ad22">ReadWriteUtil::IsNegativeVInt</a>(*firstbyte)) {</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  *value = *value ^ (<span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(-1));</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="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span> }</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div> |
| <div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="classimpala_1_1ScannerContext_1_1Stream.html#aafb6db456ad211a0f2c4302f6d2a19fc"> 148</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1ScannerContext_1_1Stream.html#aafb6db456ad211a0f2c4302f6d2a19fc">ScannerContext::Stream::ReadZLong</a>(int64_t* value, <a class="code" href="classimpala_1_1Status.html">Status</a>* status) {</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classuint64__t.html">uint64_t</a> zlong = 0;</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordtype">int</span> shift = 0;</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  uint8_t* byte;</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">do</span> {</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  DCHECK_LE(shift, 64);</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a>(ReadBytes(1, &byte, status));</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  zlong |= <span class="keyword">static_cast<</span><a class="code" href="classuint64__t.html">uint64_t</a><span class="keyword">></span>(*byte & 0x7f) << shift;</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  shift += 7;</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  } <span class="keywordflow">while</span> (*byte & 0x80);</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  *value = (zlong >> 1) ^ -(zlong & 1);</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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> </div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="preprocessor">#undef RETURN_IF_FALSE</span></div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="preprocessor">#endif</span></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_ab835ae2f5139d78ddd27ae0bbe6a974f"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#ab835ae2f5139d78ddd27ae0bbe6a974f">impala::ScannerContext::Stream::SkipText</a></div><div class="ttdeci">bool SkipText(Status *)</div><div class="ttdoc">Skip this text object. </div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00082">scanner-context.inline.h:82</a></div></div> |
| <div class="ttc" id="classimpala_1_1ReadWriteUtil_html_a0a2f35674a0eed066511aa202454510f"><div class="ttname"><a href="classimpala_1_1ReadWriteUtil.html#a0a2f35674a0eed066511aa202454510f">impala::ReadWriteUtil::DecodeVIntSize</a></div><div class="ttdeci">static int DecodeVIntSize(int8_t byte)</div><div class="ttdoc">Determines the total length in bytes of a Writable VInt/VLong from the first byte. </div><div class="ttdef"><b>Definition:</b> <a href="read-write-util_8h_source.html#l00254">read-write-util.h:254</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a9e82d3874befb89e230831b485c46446"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a9e82d3874befb89e230831b485c46446">impala::ScannerContext::Stream::output_buffer_pos_</a></div><div class="ttdeci">uint8_t ** output_buffer_pos_</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8h_source.html#l00204">scanner-context.h:204</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a6fb117924bf5f7603db6e7bbdc2d214c"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a6fb117924bf5f7603db6e7bbdc2d214c">impala::ScannerContext::Stream::ReadInt</a></div><div class="ttdeci">bool ReadInt(int32_t *val, Status *, bool peek=false)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00102">scanner-context.inline.h:102</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_ad20cbd2da52b6d2c07e6c3593a2c6b1c"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#ad20cbd2da52b6d2c07e6c3593a2c6b1c">impala::ScannerContext::Stream::ReadBoolean</a></div><div class="ttdeci">bool ReadBoolean(bool *boolean, Status *)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00095">scanner-context.inline.h:95</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a990e6a7dfe45fdd33c36d33c66a1ed6d"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a990e6a7dfe45fdd33c36d33c66a1ed6d">impala::ScannerContext::Stream::ReadVLong</a></div><div class="ttdeci">bool ReadVLong(int64_t *val, Status *)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00116">scanner-context.inline.h:116</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_aafb6db456ad211a0f2c4302f6d2a19fc"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#aafb6db456ad211a0f2c4302f6d2a19fc">impala::ScannerContext::Stream::ReadZLong</a></div><div class="ttdeci">bool ReadZLong(int64_t *val, Status *)</div><div class="ttdoc">Read a zigzag encoded long. </div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00148">scanner-context.inline.h:148</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a513addc2be66b361016ed03b43b676b2"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a513addc2be66b361016ed03b43b676b2">impala::ScannerContext::Stream::ReadText</a></div><div class="ttdeci">bool ReadText(uint8_t **buf, int64_t *length, Status *)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00088">scanner-context.inline.h:88</a></div></div> |
| <div class="ttc" id="string-buffer_8h_html"><div class="ttname"><a href="string-buffer_8h.html">string-buffer.h</a></div></div> |
| <div class="ttc" id="scanner-context_8inline_8h_html_a2a5a24ebaf26175881d20696ab510565"><div class="ttname"><a href="scanner-context_8inline_8h.html#a2a5a24ebaf26175881d20696ab510565">RETURN_IF_FALSE</a></div><div class="ttdeci">#define RETURN_IF_FALSE(x)</div><div class="ttdoc">Macro to return false if condition is false. Only defined for this file. </div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00026">scanner-context.inline.h:26</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a95b2c26a43123d46e4ad1c4048b27dfa"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a95b2c26a43123d46e4ad1c4048b27dfa">impala::ScannerContext::Stream::output_buffer_bytes_left_</a></div><div class="ttdeci">int64_t * output_buffer_bytes_left_</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8h_source.html#l00208">scanner-context.h:208</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a02d14f962e1c9b155fc4a2a256623aef"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a02d14f962e1c9b155fc4a2a256623aef">impala::ScannerContext::Stream::GetBytesInternal</a></div><div class="ttdeci">Status GetBytesInternal(int64_t requested_len, uint8_t **buffer, bool peek, int64_t *out_len)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8cc_source.html#l00216">scanner-context.cc:216</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_acfded8cb494dbda9eb700d32295e87be"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#acfded8cb494dbda9eb700d32295e87be">impala::ScannerContext::Stream::GetBytes</a></div><div class="ttdeci">bool GetBytes(int64_t requested_len, uint8_t **buffer, int64_t *out_len, Status *status, bool peek=false)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00031">scanner-context.inline.h:31</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="scanner-context_8h_html"><div class="ttname"><a href="scanner-context_8h.html">scanner-context.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a5cf574fabb846f92a0b6a9078920c7ef"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a5cf574fabb846f92a0b6a9078920c7ef">impala::ScannerContext::Stream::ReadVInt</a></div><div class="ttdeci">bool ReadVInt(int32_t *val, Status *)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00109">scanner-context.inline.h:109</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_ac1bae8ae5208e9d2c2547bc0a7efddd6"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#ac1bae8ae5208e9d2c2547bc0a7efddd6">impala::ScannerContext::Stream::SkipBytes</a></div><div class="ttdeci">bool SkipBytes(int64_t length, Status *)</div><div class="ttdoc">Skip over the next length bytes in the specified HDFS file. </div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00070">scanner-context.inline.h:70</a></div></div> |
| <div class="ttc" id="classuint64__t_html"><div class="ttname"><a href="classuint64__t.html">uint64_t</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_acc00634e4f2a30470a856930ab8c807a"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#acc00634e4f2a30470a856930ab8c807a">impala::ScannerContext::Stream::total_bytes_returned_</a></div><div class="ttdeci">int64_t total_bytes_returned_</div><div class="ttdoc">Total number of bytes returned from GetBytes() </div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8h_source.html#l00173">scanner-context.h:173</a></div></div> |
| <div class="ttc" id="classimpala_1_1ReadWriteUtil_html_a2593f928f5cdd47690b5dc6b3dd2ad22"><div class="ttname"><a href="classimpala_1_1ReadWriteUtil.html#a2593f928f5cdd47690b5dc6b3dd2ad22">impala::ReadWriteUtil::IsNegativeVInt</a></div><div class="ttdeci">static bool IsNegativeVInt(int8_t byte)</div><div class="ttdoc">Determines the sign of a VInt/VLong from the first byte. </div><div class="ttdef"><b>Definition:</b> <a href="read-write-util_8h_source.html#l00250">read-write-util.h:250</a></div></div> |
| <div class="ttc" id="read-write-util_8h_html"><div class="ttname"><a href="read-write-util_8h.html">read-write-util.h</a></div></div> |
| <div class="ttc" id="compiler-util_8h_html_a9acc330d508b9a3b775cfdf7ce405e7d"><div class="ttname"><a href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a></div><div class="ttdeci">#define UNLIKELY(expr)</div><div class="ttdef"><b>Definition:</b> <a href="compiler-util_8h_source.html#l00033">compiler-util.h:33</a></div></div> |
| <div class="ttc" id="compiler-util_8h_html_a262afcfe437f4addb13fb1b47a6a7086"><div class="ttname"><a href="compiler-util_8h.html#a262afcfe437f4addb13fb1b47a6a7086">LIKELY</a></div><div class="ttdeci">#define LIKELY(expr)</div><div class="ttdef"><b>Definition:</b> <a href="compiler-util_8h_source.html#l00032">compiler-util.h:32</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_a8429f56ab45c9b7272bd56dd787010af"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#a8429f56ab45c9b7272bd56dd787010af">impala::ScannerContext::Stream::ReportInvalidRead</a></div><div class="ttdeci">Status ReportInvalidRead(int64_t length)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8cc_source.html#l00294">scanner-context.cc:294</a></div></div> |
| <div class="ttc" id="classimpala_1_1Status_html_a95ba859e42fe93445b340533220836ac"><div class="ttname"><a href="classimpala_1_1Status.html#a95ba859e42fe93445b340533220836ac">impala::Status::ok</a></div><div class="ttdeci">bool ok() const </div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00172">status.h:172</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_1_1Stream_html_afb0c82e035be4d8bd37009dbc1739712"><div class="ttname"><a href="classimpala_1_1ScannerContext_1_1Stream.html#afb0c82e035be4d8bd37009dbc1739712">impala::ScannerContext::Stream::ReadBytes</a></div><div class="ttdeci">bool ReadBytes(int64_t length, uint8_t **buf, Status *, bool peek=false)</div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8inline_8h_source.html#l00056">scanner-context.inline.h:56</a></div></div> |
| <div class="ttc" id="classimpala_1_1ReadWriteUtil_html_a525af28d23515345d12cdc5c685670aa"><div class="ttname"><a href="classimpala_1_1ReadWriteUtil.html#a525af28d23515345d12cdc5c685670aa">impala::ReadWriteUtil::MAX_VINT_LEN</a></div><div class="ttdeci">static const int MAX_VINT_LEN</div><div class="ttdoc">Maximum length for Writeable VInt. </div><div class="ttdef"><b>Definition:</b> <a href="read-write-util_8h_source.html#l00037">read-write-util.h:37</a></div></div> |
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