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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_58b01e52e53886b8d78ab5060a2cd2bd.html">kudu</a></li><li class="navelem"><a class="el" href="dir_e8a2e446cf73a5a1ae0ad6a5a21b6d03.html">util</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment">//</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#ifndef KUDU_UTIL_SLICE_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#define KUDU_UTIL_SLICE_H_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// NOTE: using stdint.h instead of cstdint because this file is supposed</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// to be processed by a compiler lacking C++11 support.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &lt;cassert&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &lt;cstddef&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &lt;cstring&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &lt;iosfwd&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;kudu/gutil/strings/fastmem.h&quot;</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;kudu/gutil/strings/stringpiece.h&quot;</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;kudu/util/faststring.h&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &quot;kudu/util/kudu_export.h&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacekudu.html">kudu</a> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">class </span>Status;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;</div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html"> 47</a></span>&#160;<span class="keyword">class </span>KUDU_EXPORT <a class="code" href="classkudu_1_1Slice.html">Slice</a> {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66"> 50</a></span>&#160; <a class="code" href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66">Slice</a>() : data_(reinterpret_cast&lt;const uint8_t *&gt;(<span class="stringliteral">&quot;&quot;</span>)),</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; size_(0) { }</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a904b8732b247676c52cbd9147b34c54c"> 59</a></span>&#160; <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 class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a9cb396203dd2c589e7d4f10bd80461d5"> 67</a></span>&#160; <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="l00068"></a><span class="lineno"> 68</span>&#160; data_(reinterpret_cast&lt;const uint8_t *&gt;(d)),</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; size_(n) { }</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a13838e07b6dcea1895a774ab1ba62bdd"> 75</a></span>&#160; <a class="code" href="classkudu_1_1Slice.html#a13838e07b6dcea1895a774ab1ba62bdd">Slice</a>(<span class="keyword">const</span> std::string&amp; s) : <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; data_(reinterpret_cast&lt;const uint8_t *&gt;(s.data())),</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; size_(s.size()) { }</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#ae8c6057eea15f8136e62255fd766e345"> 83</a></span>&#160; <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="l00084"></a><span class="lineno"> 84</span>&#160; data_(reinterpret_cast&lt;const uint8_t *&gt;(s)),</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; size_(strlen(s)) { }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;<span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <a class="code" href="classkudu_1_1Slice.html">Slice</a>(<span class="keyword">const</span> faststring &amp;s) <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; : data_(s.data()),</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; size_(s.size()) {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; }</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <a class="code" href="classkudu_1_1Slice.html">Slice</a>(<span class="keyword">const</span> StringPiece&amp; s) <span class="comment">// NOLINT(runtime/explicit)</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; : data_(reinterpret_cast&lt;const uint8_t*&gt;(s.data())),</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; size_(s.size()) {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb"> 110</a></span>&#160; <span class="keyword">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="l00111"></a><span class="lineno"> 111</span>&#160;</div><div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164"> 113</a></span>&#160; uint8_t *<a class="code" href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164">mutable_data</a>() { <span class="keywordflow">return</span> <span class="keyword">const_cast&lt;</span>uint8_t *<span class="keyword">&gt;</span>(data_); }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146"> 116</a></span>&#160; <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="l00117"></a><span class="lineno"> 117</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a79e41b882b0a85259be89f5698e27372"> 119</a></span>&#160; <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="l00120"></a><span class="lineno"> 120</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a5ff06bc0fd9734536a464e604ec226f2"> 126</a></span>&#160; <span class="keyword">const</span> uint8_t &amp;<a class="code" href="classkudu_1_1Slice.html#a5ff06bc0fd9734536a464e604ec226f2">operator[]</a>(<span class="keywordtype">size_t</span> n)<span class="keyword"> const </span>{</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; assert(n &lt; size());</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> data_[n];</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5"> 132</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5">clear</a>() {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; data_ = <span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span>uint8_t *<span class="keyword">&gt;</span>(<span class="stringliteral">&quot;&quot;</span>);</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; size_ = 0;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; }</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a00f5d310f9ebf17c198cf3feb69c3842"> 146</a></span>&#160; <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="l00147"></a><span class="lineno"> 147</span>&#160; assert(n &lt;= size());</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; data_ += n;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; size_ -= n;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a20f1c8e91ff0209e5c8f86766ef63d44"> 161</a></span>&#160; <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="l00162"></a><span class="lineno"> 162</span>&#160; assert(n &lt;= size());</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; size_ = n;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <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="l00171"></a><span class="lineno"> 171</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; std::string ToString() <span class="keyword">const</span>;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; std::string ToDebugString(<span class="keywordtype">size_t</span> max_len = 0) <span class="keyword">const</span>;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordtype">int</span> compare(<span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>&amp; b) <span class="keyword">const</span>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a3ad7697d76b8205099d43ca552c12b8d"> 197</a></span>&#160; <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>&amp; x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; <span class="keywordflow">return</span> ((size_ &gt;= x.size_) &amp;&amp;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; (MemEqual(data_, x.data_, x.size_)));</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; }</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno"><a class="line" href="structkudu_1_1Slice_1_1Comparator.html"> 203</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structkudu_1_1Slice_1_1Comparator.html">Comparator</a> {</div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="structkudu_1_1Slice_1_1Comparator.html#a2f33c829e2febd880f9cbcbebb08fa6a"> 211</a></span>&#160; <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>&amp; a, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>&amp; b)<span class="keyword"> const </span>{</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">return</span> a.<a class="code" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98">compare</a>(b) &lt; 0;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; };</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160;</div><div class="line"><a name="l00222"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a4bb1c9fe13873623b5a5a118830b1806"> 222</a></span>&#160; <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="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keywordflow">if</span> (data_ != d) {</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; memcpy(d, data_, size_);</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; data_ = d;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; }</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; }</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <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>&amp; x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>&amp; y);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <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="l00233"></a><span class="lineno"> 233</span>&#160;<span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keywordflow">return</span> strings::memeq(a, b, n);</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <span class="keywordflow">return</span> memcmp(a, b, n) == 0;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; }</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <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="l00241"></a><span class="lineno"> 241</span>&#160;<span class="preprocessor">#ifdef KUDU_HEADERS_USE_RICH_SLICE</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">return</span> strings::fastmemcmp_inlined(a, b, n);</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordflow">return</span> memcmp(a, b, n);</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; }</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keyword">const</span> uint8_t* data_;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="keywordtype">size_t</span> size_;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="comment">// Intentionally copyable</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160;};</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;</div><div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a1323493265790d022203af0d8b31fd9c"> 261</a></span>&#160;<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>&amp; x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>&amp; y) {</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <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>()) &amp;&amp;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; (Slice::MemEqual(x.<a class="code" href="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="l00264"></a><span class="lineno"> 264</span>&#160;}</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160;<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>&amp; x, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>&amp; y) {</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordflow">return</span> !(x == y);</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160;}</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160;</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160;<span class="keyword">inline</span> std::ostream&amp; operator&lt;&lt;(std::ostream&amp; o, <span class="keyword">const</span> <a class="code" href="classkudu_1_1Slice.html">Slice</a>&amp; s) {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="keywordflow">return</span> o &lt;&lt; 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="l00286"></a><span class="lineno"> 286</span>&#160;}</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;</div><div class="line"><a name="l00288"></a><span class="lineno"><a class="line" href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98"> 288</a></span>&#160;<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>&amp; b)<span class="keyword"> const </span>{</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> min_len = (size_ &lt; b.size_) ? size_ : b.size_;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keywordtype">int</span> r = MemCompare(data_, b.data_, min_len);</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keywordflow">if</span> (r == 0) {</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordflow">if</span> (size_ &lt; b.size_) r = -1;</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (size_ &gt; b.size_) r = +1;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; }</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <span class="keywordflow">return</span> r;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160;}</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="structkudu_1_1SliceMap.html"> 314</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structkudu_1_1SliceMap.html">SliceMap</a> {</div><div class="line"><a name="l00316"></a><span class="lineno"><a class="line" href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6"> 316</a></span>&#160; <span class="keyword">typedef</span> std::map&lt;Slice, T, Slice::Comparator&gt; <a class="code" href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6">type</a>;</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160;};</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160;</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160;} <span class="comment">// namespace kudu</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160;<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&amp;#39;s outcome. </div><div class="ttdef"><b>Definition:</b> status.h:145</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:222</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:83</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a3ad7697d76b8205099d43ca552c12b8d"><div class="ttname"><a href="classkudu_1_1Slice.html#a3ad7697d76b8205099d43ca552c12b8d">kudu::Slice::starts_with</a></div><div class="ttdeci">bool starts_with(const Slice &amp;x) const </div><div class="ttdef"><b>Definition:</b> slice.h:197</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a412d632121ba52444d891c7a4f31dd42"><div class="ttname"><a href="classkudu_1_1Slice.html#a412d632121ba52444d891c7a4f31dd42">kudu::Slice::ToDebugString</a></div><div class="ttdeci">std::string ToDebugString(size_t max_len=0) const </div></div>
<div class="ttc" id="structkudu_1_1SliceMap_html_ac97e49d0aa50ae49f34ab3bbd95ea5e6"><div class="ttname"><a href="structkudu_1_1SliceMap.html#ac97e49d0aa50ae49f34ab3bbd95ea5e6">kudu::SliceMap::type</a></div><div class="ttdeci">std::map&lt; Slice, T, Slice::Comparator &gt; type</div><div class="ttdoc">A handy typedef for the slice map with appropriate comparison operator. </div><div class="ttdef"><b>Definition:</b> slice.h:316</div></div>
<div class="ttc" id="structkudu_1_1Slice_1_1Comparator_html_a2f33c829e2febd880f9cbcbebb08fa6a"><div class="ttname"><a href="structkudu_1_1Slice_1_1Comparator.html#a2f33c829e2febd880f9cbcbebb08fa6a">kudu::Slice::Comparator::operator()</a></div><div class="ttdeci">bool operator()(const Slice &amp;a, const Slice &amp;b) const </div><div class="ttdef"><b>Definition:</b> slice.h:211</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_afb914c0769f019a7c2f28b755cba5eb5"><div class="ttname"><a href="classkudu_1_1Slice.html#afb914c0769f019a7c2f28b755cba5eb5">kudu::Slice::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Change this slice to refer to an empty array. </div><div class="ttdef"><b>Definition:</b> slice.h:132</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a5ff06bc0fd9734536a464e604ec226f2"><div class="ttname"><a href="classkudu_1_1Slice.html#a5ff06bc0fd9734536a464e604ec226f2">kudu::Slice::operator[]</a></div><div class="ttdeci">const uint8_t &amp; operator[](size_t n) const </div><div class="ttdef"><b>Definition:</b> slice.h:126</div></div>
<div class="ttc" id="structkudu_1_1Slice_1_1Comparator_html"><div class="ttname"><a href="structkudu_1_1Slice_1_1Comparator.html">kudu::Slice::Comparator</a></div><div class="ttdoc">Comparator struct, useful for ordered collections (like STL maps). </div><div class="ttdef"><b>Definition:</b> slice.h:203</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a20f1c8e91ff0209e5c8f86766ef63d44"><div class="ttname"><a href="classkudu_1_1Slice.html#a20f1c8e91ff0209e5c8f86766ef63d44">kudu::Slice::truncate</a></div><div class="ttdeci">void truncate(size_t n)</div><div class="ttdef"><b>Definition:</b> slice.h:161</div></div>
<div class="ttc" id="structkudu_1_1SliceMap_html"><div class="ttname"><a href="structkudu_1_1SliceMap.html">kudu::SliceMap</a></div><div class="ttdoc">STL map whose keys are Slices. </div><div class="ttdef"><b>Definition:</b> slice.h:314</div></div>
<div class="ttc" id="classkudu_1_1Slice_html"><div class="ttname"><a href="classkudu_1_1Slice.html">kudu::Slice</a></div><div class="ttdoc">A wrapper around externally allocated data. </div><div class="ttdef"><b>Definition:</b> slice.h:47</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a141b4a1fc0555d57f192e574e427c146"><div class="ttname"><a href="classkudu_1_1Slice.html#a141b4a1fc0555d57f192e574e427c146">kudu::Slice::size</a></div><div class="ttdeci">size_t size() const </div><div class="ttdef"><b>Definition:</b> slice.h:116</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a904b8732b247676c52cbd9147b34c54c"><div class="ttname"><a href="classkudu_1_1Slice.html#a904b8732b247676c52cbd9147b34c54c">kudu::Slice::Slice</a></div><div class="ttdeci">Slice(const uint8_t *d, size_t n)</div><div class="ttdef"><b>Definition:</b> slice.h:59</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a9cb396203dd2c589e7d4f10bd80461d5"><div class="ttname"><a href="classkudu_1_1Slice.html#a9cb396203dd2c589e7d4f10bd80461d5">kudu::Slice::Slice</a></div><div class="ttdeci">Slice(const char *d, size_t n)</div><div class="ttdef"><b>Definition:</b> slice.h:67</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a2771156d34daa166067b8d319ad7d164"><div class="ttname"><a href="classkudu_1_1Slice.html#a2771156d34daa166067b8d319ad7d164">kudu::Slice::mutable_data</a></div><div class="ttdeci">uint8_t * mutable_data()</div><div class="ttdef"><b>Definition:</b> slice.h:113</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a2d90a4590b995fb55229d25effb0c5bb"><div class="ttname"><a href="classkudu_1_1Slice.html#a2d90a4590b995fb55229d25effb0c5bb">kudu::Slice::data</a></div><div class="ttdeci">const uint8_t * data() const </div><div class="ttdef"><b>Definition:</b> slice.h:110</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a00f5d310f9ebf17c198cf3feb69c3842"><div class="ttname"><a href="classkudu_1_1Slice.html#a00f5d310f9ebf17c198cf3feb69c3842">kudu::Slice::remove_prefix</a></div><div class="ttdeci">void remove_prefix(size_t n)</div><div class="ttdef"><b>Definition:</b> slice.h:146</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a13838e07b6dcea1895a774ab1ba62bdd"><div class="ttname"><a href="classkudu_1_1Slice.html#a13838e07b6dcea1895a774ab1ba62bdd">kudu::Slice::Slice</a></div><div class="ttdeci">Slice(const std::string &amp;s)</div><div class="ttdef"><b>Definition:</b> slice.h:75</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a0ecc8d893b73a664c69396ad30b14d98"><div class="ttname"><a href="classkudu_1_1Slice.html#a0ecc8d893b73a664c69396ad30b14d98">kudu::Slice::compare</a></div><div class="ttdeci">int compare(const Slice &amp;b) const </div><div class="ttdef"><b>Definition:</b> slice.h:288</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_aaee66c59ee434349680679bdf0462b66"><div class="ttname"><a href="classkudu_1_1Slice.html#aaee66c59ee434349680679bdf0462b66">kudu::Slice::Slice</a></div><div class="ttdeci">Slice()</div><div class="ttdoc">Create an empty slice. </div><div class="ttdef"><b>Definition:</b> slice.h:50</div></div>
<div class="ttc" id="classkudu_1_1Slice_html_a79e41b882b0a85259be89f5698e27372"><div class="ttname"><a href="classkudu_1_1Slice.html#a79e41b882b0a85259be89f5698e27372">kudu::Slice::empty</a></div><div class="ttdeci">bool empty() const </div><div class="ttdef"><b>Definition:</b> slice.h:119</div></div>
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