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| <div class="title">parse-util.cc</div> </div> |
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| <a href="parse-util_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2012 Cloudera Inc.</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="parse-util_8h.html">util/parse-util.h</a>"</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="mem-info_8h.html">util/mem-info.h</a>"</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "<a class="code" href="string-parser_8h.html">util/string-parser.h</a>"</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "<a class="code" href="names_8h.html">common/names.h</a>"</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="classimpala_1_1ParseUtil.html#af4f9f931b7209ff99e73956e1d77e98d"> 23</a></span> int64_t <a class="code" href="classimpala_1_1ParseUtil.html#af4f9f931b7209ff99e73956e1d77e98d">ParseUtil::ParseMemSpec</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>& mem_spec_str, <span class="keywordtype">bool</span>* is_percent,</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  int64_t relative_reference) {</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">if</span> (mem_spec_str.empty()) <span class="keywordflow">return</span> 0;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  *is_percent = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  int64_t multiplier = -1;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  int32_t number_str_len = mem_spec_str.size();</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="comment">// Look for an accepted suffix such as "MB", "M", or "%".</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  string::const_reverse_iterator suffix_char = mem_spec_str.rbegin();</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">if</span> (*suffix_char == <span class="charliteral">'b'</span> || *suffix_char == <span class="charliteral">'B'</span>) {</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="comment">// Skip "B", the default is bytes anyways.</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">if</span> (suffix_char == mem_spec_str.rend()) <span class="keywordflow">return</span> -1;</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  suffix_char++;</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  number_str_len--;</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  }</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">switch</span> (*suffix_char) {</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">case</span> <span class="charliteral">'g'</span>:</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">case</span> <span class="charliteral">'G'</span>:</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// Gigabytes.</span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  number_str_len--;</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  multiplier = 1024L * 1024L * 1024L;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">case</span> <span class="charliteral">'m'</span>:</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">case</span> <span class="charliteral">'M'</span>:</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// Megabytes.</span></div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  number_str_len--;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  multiplier = 1024L * 1024L;</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">case</span> <span class="charliteral">'%'</span>:</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// Don't allow a suffix of "%B".</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">if</span> (suffix_char != mem_spec_str.rbegin()) <span class="keywordflow">return</span> -1;</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  number_str_len--;</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  *is_percent = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// The default is bytes. If there was a trailing "B" it was handled above.</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="classimpala_1_1StringParser.html#ade4ec9c83a29225438abea9b8c15e2c2">StringParser::ParseResult</a> result;</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  int64_t bytes;</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (multiplier != -1) {</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// Parse float - MB or GB</span></div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">double</span> limit_val = StringParser::StringToFloat<double>(mem_spec_str.data(),</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  number_str_len, &result);</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (result != <a class="code" href="classimpala_1_1StringParser.html#ade4ec9c83a29225438abea9b8c15e2c2a5112bf3bfbadd918485dcbe1255b2726">StringParser::PARSE_SUCCESS</a>) <span class="keywordflow">return</span> -1;</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  bytes = multiplier * limit_val;</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// Parse int - bytes or percent</span></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  int64_t limit_val = StringParser::StringToInt<int64_t>(mem_spec_str.data(),</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  number_str_len, &result);</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">if</span> (result != <a class="code" href="classimpala_1_1StringParser.html#ade4ec9c83a29225438abea9b8c15e2c2a5112bf3bfbadd918485dcbe1255b2726">StringParser::PARSE_SUCCESS</a>) <span class="keywordflow">return</span> -1;</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (*is_percent) {</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  bytes = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(limit_val) / 100.0) * relative_reference;</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  bytes = limit_val;</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Accept -1 as indicator for infinite memory that we report by a 0 return value.</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (bytes == -1) {</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> 0;</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  }</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> bytes;</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div> |
| <div class="ttc" id="classimpala_1_1ParseUtil_html_af4f9f931b7209ff99e73956e1d77e98d"><div class="ttname"><a href="classimpala_1_1ParseUtil.html#af4f9f931b7209ff99e73956e1d77e98d">impala::ParseUtil::ParseMemSpec</a></div><div class="ttdeci">static int64_t ParseMemSpec(const std::string &mem_spec_str, bool *is_percent, int64_t relative_reference)</div><div class="ttdef"><b>Definition:</b> <a href="parse-util_8cc_source.html#l00023">parse-util.cc:23</a></div></div> |
| <div class="ttc" id="mem-info_8h_html"><div class="ttname"><a href="mem-info_8h.html">mem-info.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1StringParser_html_ade4ec9c83a29225438abea9b8c15e2c2a5112bf3bfbadd918485dcbe1255b2726"><div class="ttname"><a href="classimpala_1_1StringParser.html#ade4ec9c83a29225438abea9b8c15e2c2a5112bf3bfbadd918485dcbe1255b2726">impala::StringParser::PARSE_SUCCESS</a></div><div class="ttdef"><b>Definition:</b> <a href="string-parser_8h_source.html#l00052">string-parser.h:52</a></div></div> |
| <div class="ttc" id="string-parser_8h_html"><div class="ttname"><a href="string-parser_8h.html">string-parser.h</a></div></div> |
| <div class="ttc" id="parse-util_8h_html"><div class="ttname"><a href="parse-util_8h.html">parse-util.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1StringParser_html_ade4ec9c83a29225438abea9b8c15e2c2"><div class="ttname"><a href="classimpala_1_1StringParser.html#ade4ec9c83a29225438abea9b8c15e2c2">impala::StringParser::ParseResult</a></div><div class="ttdeci">ParseResult</div><div class="ttdef"><b>Definition:</b> <a href="string-parser_8h_source.html#l00051">string-parser.h:51</a></div></div> |
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