http://git-wip-us.apache.org/repos/asf/kudu/blob/d114777e/cpp-client-api/slice_8h_source.html ---------------------------------------------------------------------- diff --git a/cpp-client-api/slice_8h_source.html b/cpp-client-api/slice_8h_source.html index 548f2c9..7036eb5 100644 --- a/cpp-client-api/slice_8h_source.html +++ b/cpp-client-api/slice_8h_source.html @@ -89,7 +89,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); <div class="title">slice.h</div> </div> </div><!--header--> <div class="contents"> -<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright (c) 2011 The LevelDB Authors. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// found in the LICENSE file. See the AUTHORS file for names of contributors.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</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">#ifn def KUDU_UTIL_SLICE_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define KUDU_UTIL_SLICE_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="preprocessor">#include <assert.h></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <stddef.h></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a nam e="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "kudu/gutil/strings/fastmem.h"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "kudu/gutil/strings/stringpiece.h"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "kudu/util/faststring.h"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "kudu/util/kudu_export.h"</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> <span class="keyword">namespace </span><a class="code" href="namespacekudu.html">kudu</a> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">class </span>Status;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html"> 43</a></span> <span class="keyword">class </span>KUDU_EXPORT <a class="code" href="classkudu_1_1Slice.html">Slice</a> {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66"> 46</a></span>  <a class="code" href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66">Slice</a>() : data_(reinterpret_cast<const uint8_t *>(<span class="stringliteral">""</span>)),</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  size_(0) { }</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a904b8732b247676c52cbd9147b34c54c"> 55</a></span>  <a class="code" href="classkudu_1_1Slice.html#a904b8732b247676c52cbd9147b34c54c">Slice</a>(<span class="keyword">const</span> uint8_t* d, <span class="keywordtype">size_t</span> n) : data_(d), size_(n) { }</div><div clas s="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a9cb396203dd2c589e7d4f10bd80461d5"> 63</a></span>  <a class="code" href="classkudu_1_1Slice.html#a9cb396203dd2c589e7d4f10bd80461d5">Slice</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* d, <span class="keywordtype">size_t</span> n) :</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  data_(reinterpret_cast<const uint8_t *>(d)),</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  size_(n) { }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a13838e07b6dcea1895a774ab1ba62bdd"> 71</a></span>  <a class="code" href="classkudu_1_1Slice.html#a13838 e07b6dcea1895a774ab1ba62bdd">Slice</a>(<span class="keyword">const</span> std::string& s) : <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  data_(reinterpret_cast<const uint8_t *>(s.data())),</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  size_(s.size()) { }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#ae8c6057eea15f8136e62255fd766e345"> 79</a></span>  <a class="code" href="classkudu_1_1Slice.html#ae8c6057eea15f8136e62255fd766e345">Slice</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* s) : <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  data_(reinterpret_cast&l t;const uint8_t *>(s)),</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  size_(strlen(s)) { }</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> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="classkudu_1_1Slice.html">Slice</a>(<span class="keyword">const</span> faststring &s) <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  : data_(s.data()),</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  size_(s.size()) {</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</s pan> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classkudu_1_1Slice.html">Slice</a>(<span class="keyword">const</span> StringPiece& s) <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  : data_(reinterpret_cast<const uint8_t*>(s.data())),</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  size_(s.size()) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb"> 106</a></span>  <span class="k eyword">const</span> uint8_t* <a class="code" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">data</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> data_; }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164"> 109</a></span>  uint8_t *<a class="code" href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164">mutable_data</a>() { <span class="keywordflow">return</span> <span class="keyword">const_cast<</span>uint8_t *<span class="keyword">></span>(data_); }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146"> 112</a></span>  <span class="keywordtype">size_t</ span> <a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_; }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a79e41b882b0a85259be89f5698e27372"> 115</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classkudu_1_1Slice.html#a79e41b882b0a85259be89f5698e27372">empty</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_ == 0; }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a5ff06bc0fd9734536a464e604ec226f2"> 122</a></span>  <span class="keyword">const</span> uint8_t &<a class="code" href="classkudu_1_1 Slice.html#a5ff06bc0fd9734536a464e604ec226f2">operator[]</a>(<span class="keywordtype">size_t</span> n)<span class="keyword"> const </span>{</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  assert(n < size());</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> data_[n];</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5"> 128</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5">clear</a>() {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  data_ = <span class="keyword">reinterpret_cast&l t;</span><span class="keyword">const </span>uint8_t *<span class="keyword">></span>(<span class="stringliteral">""</span>);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  size_ = 0;</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> </div><div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a00f5d310f9ebf17c198cf3feb69c3842"> 142</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#a00f5d310f9ebf17c198cf3feb69c3842">remove_prefix</a>(<span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  assert(n <= size());</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  data_ += n;</div><div class="line"><a nam e="l00145"></a><span class="lineno"> 145</span>  size_ -= n;</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="l00157"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a20f1c8e91ff0209e5c8f86766ef63d44"> 157</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#a20f1c8e91ff0209e5c8f86766ef63d44">truncate</a>(<span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  assert(n <= size());</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  size_ = n;</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 nam e="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="classkudu_1_1Status.html">Status</a> check_size(<span class="keywordtype">size_t</span> expected_size) <span class="keyword">const</span>;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  std::string ToString() <span class="keyword">const</span>;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  std::string ToDebugString(<span class="keywordtype">size_t</span> max_len = 0) <span class="keyword">const</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">int</span> compare(<span class="keyword">const</span> <a class="code" hre f="classkudu_1_1Slice.html">Slice</a>& b) <span class="keyword">const</span>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a3ad7697d76b8205099d43ca552c12b8d"> 193</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classkudu_1_1Slice.html#a3ad7697d76b8205099d43ca552c12b8d">starts_with</a>(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> ((size_ >= x.size_) &&</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  (MemEqual(data_, x.data_, x.size_)));</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div><di v class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="structkudu_1_1Slice_1_1Comparator.html"> 199</a></span>  <span class="keyword">struct </span><a class="code" href="structkudu_1_1Slice_1_1Comparator.html">Comparator</a> {</div><div class="line"><a name="l00207"></a><span class="lineno"><a class="line" href="structkudu_1_1Slice_1_1Comparator.html#a2f33c829e2febd880f9cbcbebb08fa6a"> 207</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structkudu_1_1Slice_1_1Comparator.html#a2f33c829e2febd880f9cbcbebb08fa6a">operator()</a>(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& a, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& b)<span class="keyword"> const </span>{</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  ; <span class="keywordflow">return</span> a.<a class="code" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98">compare</a>(b) < 0;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</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="l00218"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a4bb1c9fe13873623b5a5a118830b1806"> 218</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#a4bb1c9fe13873623b5a5a118830b1806">relocate</a>(uint8_t* d) {</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">if</span> (data_ != d) {</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  memcpy(d, data_, size_);</div><div class ="line"><a name="l00221"></a><span class="lineno"> 221</span>  data_ = d;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</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> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">friend</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& y);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</spa n>  <span class="keyword">static</span> <span class="keywordtype">bool</span> MemEqual(<span class="keyword">const</span> <span class="keywordtype">void</span>* a, <span class="keyword">const</span> <span class="keywordtype">void</span>* b, <span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">return</span> strings::memeq(a, b, n);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> memcmp(a, b, n) == 0;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor">#endif</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> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> MemCompare(<span class="keyword">const</span> <span class="keywordtype">void</span>* a, <span class="keyword">const</span> <span class="keywordtype">void</span>* b, <span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">return</span> strings::fastmemcmp_inlined(a, b, n);</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor">#else</span></div><div class="line"> <a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> memcmp(a, b, n);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">const</span> uint8_t* data_;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordtype">size_t</span> size_;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// Intentionally copyable</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> };</di v><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00257"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a1323493265790d022203af0d8b31fd9c"> 257</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& y) {</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">return</span> ((x.<a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>() == y.<a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>()) &&</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  (Slice::MemEqual(x.<a class="code" hre f="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">data</a>(), y.<a class="code" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">data</a>(), x.<a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>())));</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> </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& y) {</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> !(x == y);</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="l00280"></a><span class="lineno"> 280</span> <span class="keyword">inline</span> std::ostream& operator<<(std::ostream& o, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& s) {</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">return</span> o << s.<a class="code" href="classkudu_1_1Slice.html#a412d632121ba52444d891c7a4f31dd42">ToDebugString</a>(16); <span class="comment">// should be enough for anyone...</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> </div><div class="line"><a name="l00284"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c693 96ad30b14d98"> 284</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98">Slice::compare</a>(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& b)<span class="keyword"> const </span>{</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> min_len = (size_ < b.size_) ? size_ : b.size_;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordtype">int</span> r = MemCompare(data_, b.data_, min_len);</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (r == 0) {</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">if</span> (size_ < b.size_) r = - 1;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (size_ > b.size_) r = +1;</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> r;</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="l00309"></a><span class="lineno"> 309</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00310"></a><span class="lineno"><a class="line" href="structkudu_1_1SliceMap.html"> 310</a></span> <span class="keyword">struct </span><a class="code" href="structkudu_1_1SliceMap.html">SliceMap</a> {</div><div c lass="line"><a name="l00312"></a><span class="lineno"><a class="line" href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6"> 312</a></span>  <span class="keyword">typedef</span> std::map<Slice, T, Slice::Comparator> <a class="code" href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6">type</a>;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> };</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> } <span class="comment">// namespace kudu</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="preprocessor">#endif // KUDU_UTIL_SLICE_H_</span></div><div class="ttc" id="classkudu_1_1Status_html"><div class="ttname"><a href="classkudu_1_1Status.html">kudu::Status</a>< /div><div class="ttdoc">A representation of an operation&#39;s outcome. </div><div class="ttdef"><b>Definition:</b> status.h:116</div></div> +<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright (c) 2011 The LevelDB Authors. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// found in the LICENSE file. See the AUTHORS file for names of contributors.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</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">#ifn def KUDU_UTIL_SLICE_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define KUDU_UTIL_SLICE_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="preprocessor">#include <assert.h></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <stddef.h></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a nam e="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "kudu/gutil/strings/fastmem.h"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "kudu/gutil/strings/stringpiece.h"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "kudu/util/faststring.h"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "kudu/util/kudu_export.h"</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> <span class="keyword">namespace </span><a class="code" href="namespacekudu.html">kudu</a> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">class </span>Status;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html"> 43</a></span> <span class="keyword">class </span>KUDU_EXPORT <a class="code" href="classkudu_1_1Slice.html">Slice</a> {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66"> 46</a></span>  <a class="code" href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66">Slice</a>() : data_(reinterpret_cast<const uint8_t *>(<span class="stringliteral">""</span>)),</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  size_(0) { }</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a904b8732b247676c52cbd9147b34c54c"> 55</a></span>  <a class="code" href="classkudu_1_1Slice.html#a904b8732b247676c52cbd9147b34c54c">Slice</a>(<span class="keyword">const</span> uint8_t* d, <span class="keywordtype">size_t</span> n) : data_(d), size_(n) { }</div><div clas s="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a9cb396203dd2c589e7d4f10bd80461d5"> 63</a></span>  <a class="code" href="classkudu_1_1Slice.html#a9cb396203dd2c589e7d4f10bd80461d5">Slice</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* d, <span class="keywordtype">size_t</span> n) :</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  data_(reinterpret_cast<const uint8_t *>(d)),</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  size_(n) { }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a13838e07b6dcea1895a774ab1ba62bdd"> 71</a></span>  <a class="code" href="classkudu_1_1Slice.html#a13838 e07b6dcea1895a774ab1ba62bdd">Slice</a>(<span class="keyword">const</span> std::string& s) : <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  data_(reinterpret_cast<const uint8_t *>(s.data())),</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  size_(s.size()) { }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#ae8c6057eea15f8136e62255fd766e345"> 79</a></span>  <a class="code" href="classkudu_1_1Slice.html#ae8c6057eea15f8136e62255fd766e345">Slice</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* s) : <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  data_(reinterpret_cast&l t;const uint8_t *>(s)),</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  size_(strlen(s)) { }</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> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="classkudu_1_1Slice.html">Slice</a>(<span class="keyword">const</span> faststring &s) <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  : data_(s.data()),</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  size_(s.size()) {</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</s pan> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classkudu_1_1Slice.html">Slice</a>(<span class="keyword">const</span> StringPiece& s) <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  : data_(reinterpret_cast<const uint8_t*>(s.data())),</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  size_(s.size()) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb"> 106</a></span>  <span class="k eyword">const</span> uint8_t* <a class="code" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">data</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> data_; }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164"> 109</a></span>  uint8_t *<a class="code" href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164">mutable_data</a>() { <span class="keywordflow">return</span> <span class="keyword">const_cast<</span>uint8_t *<span class="keyword">></span>(data_); }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146"> 112</a></span>  <span class="keywordtype">size_t</ span> <a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_; }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a79e41b882b0a85259be89f5698e27372"> 115</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classkudu_1_1Slice.html#a79e41b882b0a85259be89f5698e27372">empty</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_ == 0; }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a5ff06bc0fd9734536a464e604ec226f2"> 122</a></span>  <span class="keyword">const</span> uint8_t &<a class="code" href="classkudu_1_1 Slice.html#a5ff06bc0fd9734536a464e604ec226f2">operator[]</a>(<span class="keywordtype">size_t</span> n)<span class="keyword"> const </span>{</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  assert(n < size());</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> data_[n];</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5"> 128</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5">clear</a>() {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  data_ = <span class="keyword">reinterpret_cast&l t;</span><span class="keyword">const </span>uint8_t *<span class="keyword">></span>(<span class="stringliteral">""</span>);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  size_ = 0;</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> </div><div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a00f5d310f9ebf17c198cf3feb69c3842"> 142</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#a00f5d310f9ebf17c198cf3feb69c3842">remove_prefix</a>(<span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  assert(n <= size());</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  data_ += n;</div><div class="line"><a nam e="l00145"></a><span class="lineno"> 145</span>  size_ -= n;</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="l00157"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a20f1c8e91ff0209e5c8f86766ef63d44"> 157</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#a20f1c8e91ff0209e5c8f86766ef63d44">truncate</a>(<span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  assert(n <= size());</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  size_ = n;</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 nam e="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="classkudu_1_1Status.html">Status</a> check_size(<span class="keywordtype">size_t</span> expected_size) <span class="keyword">const</span>;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  std::string ToString() <span class="keyword">const</span>;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  std::string ToDebugString(<span class="keywordtype">size_t</span> max_len = 0) <span class="keyword">const</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">int</span> compare(<span class="keyword">const</span> <a class="code" hre f="classkudu_1_1Slice.html">Slice</a>& b) <span class="keyword">const</span>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a3ad7697d76b8205099d43ca552c12b8d"> 193</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classkudu_1_1Slice.html#a3ad7697d76b8205099d43ca552c12b8d">starts_with</a>(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> ((size_ >= x.size_) &&</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  (MemEqual(data_, x.data_, x.size_)));</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div><di v class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="structkudu_1_1Slice_1_1Comparator.html"> 199</a></span>  <span class="keyword">struct </span><a class="code" href="structkudu_1_1Slice_1_1Comparator.html">Comparator</a> {</div><div class="line"><a name="l00207"></a><span class="lineno"><a class="line" href="structkudu_1_1Slice_1_1Comparator.html#a2f33c829e2febd880f9cbcbebb08fa6a"> 207</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structkudu_1_1Slice_1_1Comparator.html#a2f33c829e2febd880f9cbcbebb08fa6a">operator()</a>(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& a, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& b)<span class="keyword"> const </span>{</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  ; <span class="keywordflow">return</span> a.<a class="code" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98">compare</a>(b) < 0;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</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="l00218"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a4bb1c9fe13873623b5a5a118830b1806"> 218</a></span>  <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#a4bb1c9fe13873623b5a5a118830b1806">relocate</a>(uint8_t* d) {</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">if</span> (data_ != d) {</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  memcpy(d, data_, size_);</div><div class ="line"><a name="l00221"></a><span class="lineno"> 221</span>  data_ = d;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</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> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">friend</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& y);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</spa n>  <span class="keyword">static</span> <span class="keywordtype">bool</span> MemEqual(<span class="keyword">const</span> <span class="keywordtype">void</span>* a, <span class="keyword">const</span> <span class="keywordtype">void</span>* b, <span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">return</span> strings::memeq(a, b, n);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> memcmp(a, b, n) == 0;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor">#endif</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> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> MemCompare(<span class="keyword">const</span> <span class="keywordtype">void</span>* a, <span class="keyword">const</span> <span class="keywordtype">void</span>* b, <span class="keywordtype">size_t</span> n) {</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">return</span> strings::fastmemcmp_inlined(a, b, n);</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor">#else</span></div><div class="line"> <a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> memcmp(a, b, n);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">const</span> uint8_t* data_;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordtype">size_t</span> size_;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// Intentionally copyable</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> };</di v><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00257"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a1323493265790d022203af0d8b31fd9c"> 257</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& y) {</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">return</span> ((x.<a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>() == y.<a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>()) &&</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  (Slice::MemEqual(x.<a class="code" hre f="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">data</a>(), y.<a class="code" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">data</a>(), x.<a class="code" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">size</a>())));</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> </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& y) {</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> !(x == y);</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="l00280"></a><span class="lineno"> 280</span> <span class="keyword">inline</span> std::ostream& operator<<(std::ostream& o, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& s) {</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">return</span> o << s.<a class="code" href="classkudu_1_1Slice.html#a412d632121ba52444d891c7a4f31dd42">ToDebugString</a>(16); <span class="comment">// should be enough for anyone...</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> </div><div class="line"><a name="l00284"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c693 96ad30b14d98"> 284</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98">Slice::compare</a>(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>& b)<span class="keyword"> const </span>{</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> min_len = (size_ < b.size_) ? size_ : b.size_;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordtype">int</span> r = MemCompare(data_, b.data_, min_len);</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (r == 0) {</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">if</span> (size_ < b.size_) r = - 1;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (size_ > b.size_) r = +1;</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> r;</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="l00309"></a><span class="lineno"> 309</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00310"></a><span class="lineno"><a class="line" href="structkudu_1_1SliceMap.html"> 310</a></span> <span class="keyword">struct </span><a class="code" href="structkudu_1_1SliceMap.html">SliceMap</a> {</div><div c lass="line"><a name="l00312"></a><span class="lineno"><a class="line" href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6"> 312</a></span>  <span class="keyword">typedef</span> std::map<Slice, T, Slice::Comparator> <a class="code" href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6">type</a>;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> };</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> } <span class="comment">// namespace kudu</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="preprocessor">#endif // KUDU_UTIL_SLICE_H_</span></div><div class="ttc" id="classkudu_1_1Status_html"><div class="ttname"><a href="classkudu_1_1Status.html">kudu::Status</a>< /div><div class="ttdoc">A representation of an operation&#39;s outcome. </div><div class="ttdef"><b>Definition:</b> status.h:130</div></div> <div class="ttc" id="namespacekudu_html"><div class="ttname"><a href="namespacekudu.html">kudu</a></div><div class="ttdef"><b>Definition:</b> callbacks.h:28</div></div> <div class="ttc" id="classkudu_1_1Slice_html_a4bb1c9fe13873623b5a5a118830b1806"><div class="ttname"><a href="classkudu_1_1Slice.html#a4bb1c9fe13873623b5a5a118830b1806">kudu::Slice::relocate</a></div><div class="ttdeci">void relocate(uint8_t *d)</div><div class="ttdef"><b>Definition:</b> slice.h:218</div></div> <div class="ttc" id="classkudu_1_1Slice_html_ae8c6057eea15f8136e62255fd766e345"><div class="ttname"><a href="classkudu_1_1Slice.html#ae8c6057eea15f8136e62255fd766e345">kudu::Slice::Slice</a></div><div class="ttdeci">Slice(const char *s)</div><div class="ttdef"><b>Definition:</b> slice.h:79</div></div> @@ -117,7 +117,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); <!-- start footer part --> <hr class="footer"/> <address class="footer"> - <small>Generated for Kudu version 1.2.1-SNAPSHOT on Thu Feb 2 2017 14:03:08 by Doxygen 1.8.11</small> + <small>Generated for Kudu version 1.3.0 on Mon Mar 20 2017 16:39:33 by Doxygen 1.8.11</small> <br> <small>Copyright © 2017 The Apache Software Foundation.</small> </address>
http://git-wip-us.apache.org/repos/asf/kudu/blob/d114777e/cpp-client-api/status_8h.html ---------------------------------------------------------------------- diff --git a/cpp-client-api/status_8h.html b/cpp-client-api/status_8h.html index 763b6a0..7fa1b44 100644 --- a/cpp-client-api/status_8h.html +++ b/cpp-client-api/status_8h.html @@ -151,6 +151,13 @@ Macros</h2></td></tr> #define </td><td class="memItemRight" valign="bottom"><a class="el" href="status_8h.html#ac503ba85e942147294cdc82087da60f6">KUDU_CHECK_OK</a>(s)   <a class="el" href="status_8h.html#a706c9f6ef1715b8f7a9185fb3c247d3f">KUDU_CHECK_OK_PREPEND</a>(s, "Bad status")</td></tr> <tr class="memdesc:ac503ba85e942147294cdc82087da60f6"><td class="mdescLeft"> </td><td class="mdescRight">If the status is bad, CHECK immediately, appending the status to the logged message. <br /></td></tr> <tr class="separator:ac503ba85e942147294cdc82087da60f6"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a2b360b53025724bb97d1dc21e25e26cc"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="status_8h.html#a2b360b53025724bb97d1dc21e25e26cc">KUDU_DCHECK_OK_PREPEND</a>(to_call, msg)</td></tr> +<tr class="memdesc:a2b360b53025724bb97d1dc21e25e26cc"><td class="mdescLeft"> </td><td class="mdescRight">If <code>to_call</code> returns a bad status, DCHECK immediately with a logged message of <code>msg</code> followed by the status. <a href="#a2b360b53025724bb97d1dc21e25e26cc">More...</a><br /></td></tr> +<tr class="separator:a2b360b53025724bb97d1dc21e25e26cc"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a99332afa18f00de3c7fcf3e76949df9d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a99332afa18f00de3c7fcf3e76949df9d"></a> +#define </td><td class="memItemRight" valign="bottom"><a class="el" href="status_8h.html#a99332afa18f00de3c7fcf3e76949df9d">KUDU_DCHECK_OK</a>(s)   <a class="el" href="status_8h.html#a2b360b53025724bb97d1dc21e25e26cc">KUDU_DCHECK_OK_PREPEND</a>(s, "Bad status")</td></tr> +<tr class="memdesc:a99332afa18f00de3c7fcf3e76949df9d"><td class="mdescLeft"> </td><td class="mdescRight">If the status is bad, DCHECK immediately, appending the status to the logged 'Bad status' message. <br /></td></tr> +<tr class="separator:a99332afa18f00de3c7fcf3e76949df9d"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>This header is used in both the Kudu build as well as in builds of applications that use the Kudu C++ client. In the latter we need to be careful to "namespace" our macros, to avoid colliding or overriding with similarly named macros belonging to the application.</p> @@ -187,6 +194,34 @@ Macros</h2></td></tr> </div> </div> +<a class="anchor" id="a2b360b53025724bb97d1dc21e25e26cc"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">#define KUDU_DCHECK_OK_PREPEND</td> + <td>(</td> + <td class="paramtype"> </td> + <td class="paramname">to_call, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"> </td> + <td class="paramname">msg </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> +<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> { \</div><div class="line"> const ::kudu::Status& _s = (to_call); \</div><div class="line"> KUDU_DCHECK(_s.ok()) << (msg) << <span class="stringliteral">": "</span> << _s.ToString(); \</div><div class="line"> } <span class="keywordflow">while</span> (0);</div></div><!-- fragment --> +<p>If <code>to_call</code> returns a bad status, DCHECK immediately with a logged message of <code>msg</code> followed by the status. </p> + +</div> +</div> <a class="anchor" id="abbd85cc2c5535627091bb06a21918150"></a> <div class="memitem"> <div class="memproto"> @@ -355,7 +390,7 @@ Macros</h2></td></tr> <!-- start footer part --> <hr class="footer"/> <address class="footer"> - <small>Generated for Kudu version 1.2.1-SNAPSHOT on Thu Feb 2 2017 14:03:08 by Doxygen 1.8.11</small> + <small>Generated for Kudu version 1.3.0 on Mon Mar 20 2017 16:39:33 by Doxygen 1.8.11</small> <br> <small>Copyright © 2017 The Apache Software Foundation.</small> </address>
