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<h1 style="color: #145A32;">C++ Reference: CP-SAT</h1>
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<div class="title">time_limit.h</div> </div>
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<div class="contents">
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<a href="time__limit_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2018 Google LLC</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// You may obtain a copy of the License at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#ifndef OR_TOOLS_UTIL_TIME_LIMIT_H_</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#define OR_TOOLS_UTIL_TIME_LIMIT_H_</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <atomic></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <cstdlib></span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <memory></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <string></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "absl/container/flat_hash_map.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "absl/memory/memory.h"</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "absl/synchronization/mutex.h"</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "absl/time/clock.h"</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "ortools/base/commandlineflags.h"</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "ortools/base/logging.h"</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "ortools/base/macros.h"</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "ortools/base/timer.h"</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "ortools/util/running_stat.h"</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifdef HAS_PERF_SUBSYSTEM</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "exegesis/exegesis/itineraries/perf_subsystem.h"</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#endif // HAS_PERF_SUBSYSTEM</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <a class="code" href="time__limit_8h.html#a05c25f55df53c30b07aa2585a8424921">DECLARE_bool</a>(time_limit_use_usertime);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <a class="code" href="time__limit_8h.html#a05c25f55df53c30b07aa2585a8424921">DECLARE_bool</a>(time_limit_use_instruction_count);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// TODO(user): The expression "deterministic time" should be replaced with</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment">// "number of operations" to avoid confusion with "real" time.</span></div>
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<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html"> 106</a></span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a> {</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a1837453fa693143e6ec334701557a448"> 108</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a1837453fa693143e6ec334701557a448">kSafetyBufferSeconds</a>; <span class="comment">// See the .cc for the value.</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#ac62fbbc5383a86a9fe334e3213f6244b"> 109</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#ac62fbbc5383a86a9fe334e3213f6244b">kHistorySize</a>;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">explicit</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a0598aaf87dab140f870c8ada2a1f3a39">TimeLimit</a>(</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">double</span> limit_in_seconds,</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">double</span> deterministic_limit = std::numeric_limits<double>::infinity(),</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">double</span> instruction_limit = std::numeric_limits<double>::infinity());</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
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<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a0598aaf87dab140f870c8ada2a1f3a39"> 127</a></span>  <a class="code" href="classoperations__research_1_1TimeLimit.html#a0598aaf87dab140f870c8ada2a1f3a39">TimeLimit</a>() : <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>(std::numeric_limits<double>::infinity()) {}</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html#a0598aaf87dab140f870c8ada2a1f3a39">TimeLimit</a>(<span class="keyword">const</span> <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>& <a class="code" href="classoperations__research_1_1TimeLimit.html#a9d28f062361ac553f8bc1da250b205bd">operator=</a>(<span class="keyword">const</span> <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  </div>
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<div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a517ffd071860d7efd76134e25f6f03e1"> 135</a></span>  <span class="keyword">static</span> std::unique_ptr<TimeLimit> <a class="code" href="classoperations__research_1_1TimeLimit.html#a517ffd071860d7efd76134e25f6f03e1">Infinite</a>() {</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> absl::make_unique<TimeLimit>(</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  std::numeric_limits<double>::infinity(),</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  std::numeric_limits<double>::infinity(),</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  std::numeric_limits<double>::infinity());</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  </div>
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<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a640ae7a07a6de8fe45a5526326f3b028"> 145</a></span>  <span class="keyword">static</span> std::unique_ptr<TimeLimit> <a class="code" href="classoperations__research_1_1TimeLimit.html#a640ae7a07a6de8fe45a5526326f3b028">FromDeterministicTime</a>(</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">double</span> deterministic_limit) {</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> absl::make_unique<TimeLimit>(</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  std::numeric_limits<double>::infinity(), deterministic_limit,</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  std::numeric_limits<double>::infinity());</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  </div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// TODO(user): Support adding instruction count limit from parameters.</span></div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Parameters></div>
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<div class="line"><a name="l00160"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a96f95e438ca7940b115c838c96c06d87"> 160</a></span>  <span class="keyword">static</span> std::unique_ptr<TimeLimit> <a class="code" href="classoperations__research_1_1TimeLimit.html#a96f95e438ca7940b115c838c96c06d87">FromParameters</a>(</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">const</span> Parameters& parameters) {</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> absl::make_unique<TimeLimit>(</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  parameters.max_time_in_seconds(), parameters.max_deterministic_time(),</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  std::numeric_limits<double>::infinity());</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
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<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a43229b9a540c5b4c3751ebb13e73ace8"> 172</a></span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a43229b9a540c5b4c3751ebb13e73ace8">SetInstructionLimit</a>(<span class="keywordtype">double</span> instruction_limit) {</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  instruction_limit_ = instruction_limit;</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  </div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// TODO(user): Use an exact counter for counting instructions. The</span></div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// PMU counter returns the instruction count value as double since there may</span></div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// be sampling issues.</span></div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a4cb3517d59bf4642a85294267736af20">ReadInstructionCounter</a>();</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>();</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  </div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">GetTimeLeft</a>() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  </div>
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<div class="line"><a name="l00213"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a362a88bfe50d83c028154a62ef53e780"> 213</a></span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a362a88bfe50d83c028154a62ef53e780">GetDeterministicTimeLeft</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> std::max(0.0, deterministic_limit_ - elapsed_deterministic_time_);</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  </div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a0be73bea3d751ca2926c1cd616abb31e">GetInstructionsLeft</a>();</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  </div>
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<div class="line"><a name="l00227"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9"> 227</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9">AdvanceDeterministicTime</a>(<span class="keywordtype">double</span> deterministic_duration) {</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  DCHECK_LE(0.0, deterministic_duration);</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  elapsed_deterministic_time_ += deterministic_duration;</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  </div>
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<div class="line"><a name="l00241"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#ad068edb54c705c548c20e4ba47b4e3a8"> 241</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#ad068edb54c705c548c20e4ba47b4e3a8">AdvanceDeterministicTime</a>(<span class="keywordtype">double</span> deterministic_duration,</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* counter_name) {</div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9">AdvanceDeterministicTime</a>(deterministic_duration);</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  deterministic_counters_[counter_name] += deterministic_duration;</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  </div>
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<div class="line"><a name="l00252"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#ae3fe2e2b613455b49c6cc74dd3c7581e"> 252</a></span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#ae3fe2e2b613455b49c6cc74dd3c7581e">GetElapsedTime</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">return</span> 1e-9 * (absl::GetCurrentTimeNanos() - start_ns_);</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  </div>
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<div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#ac7e861414a70fc937d18bc7ca743fc98"> 261</a></span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#ac7e861414a70fc937d18bc7ca743fc98">GetElapsedDeterministicTime</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> elapsed_deterministic_time_;</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  </div>
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<div class="line"><a name="l00275"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a5b6cf15a55615535aa54e71103de8d9f"> 275</a></span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a5b6cf15a55615535aa54e71103de8d9f">RegisterExternalBooleanAsLimit</a>(</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  std::atomic<bool>* external_boolean_as_limit) {</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  external_boolean_as_limit_ = external_boolean_as_limit;</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  }</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  </div>
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<div class="line"><a name="l00283"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a30ac580cb264bf8e92696890f212727e"> 283</a></span>  std::atomic<bool>* <a class="code" href="classoperations__research_1_1TimeLimit.html#a30ac580cb264bf8e92696890f212727e">ExternalBooleanAsLimit</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">return</span> external_boolean_as_limit_;</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  </div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Parameters></div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a312550ebabce586fb77c49e813c610f8">ResetLimitFromParameters</a>(<span class="keyword">const</span> Parameters& parameters);</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#ad0cdf04d71ac4f14262eb4871041ddbd">MergeWithGlobalTimeLimit</a>(<a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* other);</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  </div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  std::string <a class="code" href="classoperations__research_1_1TimeLimit.html#a764be64f3029f8b8e23511061d8de355">DebugString</a>() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  </div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordtype">void</span> ResetTimers(<span class="keywordtype">double</span> limit_in_seconds, <span class="keywordtype">double</span> deterministic_limit,</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordtype">double</span> instruction_limit);</div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  </div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  std::string GetInstructionRetiredEventName()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">return</span> <span class="stringliteral">"inst_retired:any_p:u"</span>;</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  }</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  </div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">mutable</span> int64 start_ns_; <span class="comment">// Not const! this is initialized after instruction</span></div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// counter initialization.</span></div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  int64 last_ns_;</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  int64 limit_ns_; <span class="comment">// Not const! See the code of LimitReached().</span></div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keyword">const</span> int64 safety_buffer_ns_;</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  RunningMax<int64> running_max_;</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  </div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// Only used when FLAGS_time_limit_use_usertime is true.</span></div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  UserTimer user_timer_;</div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordtype">double</span> limit_in_seconds_;</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  </div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordtype">double</span> deterministic_limit_;</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordtype">double</span> elapsed_deterministic_time_;</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  </div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  std::atomic<bool>* external_boolean_as_limit_;</div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  </div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="preprocessor">#ifdef HAS_PERF_SUBSYSTEM</span></div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// PMU counter to help count the instructions.</span></div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  exegesis::PerfSubsystem perf_subsystem_;</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="preprocessor">#endif // HAS_PERF_SUBSYSTEM</span></div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="comment">// Given limit in terms of number of instructions.</span></div>
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|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordtype">double</span> instruction_limit_;</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  </div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// Contains the values of the deterministic time counters.</span></div>
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|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  absl::flat_hash_map<std::string, double> deterministic_counters_;</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  </div>
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<div class="line"><a name="l00336"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a80c2662c13e3bbf165ffe1603fe87433"> 336</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1NestedTimeLimit.html">NestedTimeLimit</a>;</div>
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<div class="line"><a name="l00337"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a4c1bbdcb2a449b42a788178d2c3d2477"> 337</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1TimeLimit.html#a4c1bbdcb2a449b42a788178d2c3d2477">ParallelTimeLimit</a>;</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> };</div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  </div>
|
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment">// Wrapper around TimeLimit to make it thread safe and add Stop() support.</span></div>
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<div class="line"><a name="l00341"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html"> 341</a></span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1SharedTimeLimit.html">SharedTimeLimit</a> {</div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00343"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#ab93548508ad14a5cecdaafa67db47cd9"> 343</a></span>  <span class="keyword">explicit</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#ab93548508ad14a5cecdaafa67db47cd9">SharedTimeLimit</a>(<a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* time_limit)</div>
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<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  : time_limit_(time_limit), stopped_boolean_(false) {</div>
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|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// We use the one already registered if present or ours otherwise.</span></div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  stopped_ = time_limit-><a class="code" href="classoperations__research_1_1TimeLimit.html#a30ac580cb264bf8e92696890f212727e">ExternalBooleanAsLimit</a>();</div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (stopped_ == <span class="keyword">nullptr</span>) {</div>
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|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  stopped_ = &stopped_boolean_;</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  time_limit-><a class="code" href="classoperations__research_1_1TimeLimit.html#a5b6cf15a55615535aa54e71103de8d9f">RegisterExternalBooleanAsLimit</a>(stopped_);</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div>
|
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<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  }</div>
|
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  </div>
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<div class="line"><a name="l00353"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#ac814f11492bfc0b561c58bf951e1b031"> 353</a></span>  <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#ac814f11492bfc0b561c58bf951e1b031">~SharedTimeLimit</a>() {</div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">if</span> (stopped_ == &stopped_boolean_) {</div>
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  time_limit_->RegisterExternalBooleanAsLimit(<span class="keyword">nullptr</span>);</div>
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  }</div>
|
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<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div>
|
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  </div>
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<div class="line"><a name="l00359"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#ad837e6231722ead53bbaf1c6e8f66032"> 359</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#ad837e6231722ead53bbaf1c6e8f66032">LimitReached</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="comment">// Note, time_limit_->LimitReached() is not const, and changes internal</span></div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">// state of time_limit_, hence we need a writer's lock.</span></div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  absl::MutexLock lock(&mutex_);</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">return</span> time_limit_->LimitReached();</div>
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<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div>
|
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<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  </div>
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<div class="line"><a name="l00366"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#a17a237457e57625296e6b24feb19c60a"> 366</a></span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#a17a237457e57625296e6b24feb19c60a">Stop</a>() {</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  absl::MutexLock lock(&mutex_);</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  *stopped_ = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  }</div>
|
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<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  </div>
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<div class="line"><a name="l00371"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#a3d37e6e18c64cbaef0e3a118aeb351da"> 371</a></span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#a3d37e6e18c64cbaef0e3a118aeb351da">UpdateLocalLimit</a>(<a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* local_limit) {</div>
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<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  absl::MutexLock lock(&mutex_);</div>
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<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  local_limit-><a class="code" href="classoperations__research_1_1TimeLimit.html#ad0cdf04d71ac4f14262eb4871041ddbd">MergeWithGlobalTimeLimit</a>(time_limit_);</div>
|
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<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  }</div>
|
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<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  </div>
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<div class="line"><a name="l00376"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9"> 376</a></span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9">AdvanceDeterministicTime</a>(<span class="keywordtype">double</span> deterministic_duration) {</div>
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|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  absl::MutexLock lock(&mutex_);</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  time_limit_->AdvanceDeterministicTime(deterministic_duration);</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  }</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  </div>
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<div class="line"><a name="l00381"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715"> 381</a></span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">GetTimeLeft</a>()<span class="keyword"> const </span>{</div>
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|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  absl::ReaderMutexLock lock(&mutex_);</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span> time_limit_->GetTimeLeft();</div>
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|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  </div>
|
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<div class="line"><a name="l00386"></a><span class="lineno"><a class="line" href="classoperations__research_1_1SharedTimeLimit.html#ac7e861414a70fc937d18bc7ca743fc98"> 386</a></span>  <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1SharedTimeLimit.html#ac7e861414a70fc937d18bc7ca743fc98">GetElapsedDeterministicTime</a>()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  absl::ReaderMutexLock lock(&mutex_);</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">return</span> time_limit_->GetElapsedDeterministicTime();</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  }</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  </div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keyword">private</span>:</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keyword">mutable</span> absl::Mutex mutex_;</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* time_limit_ GUARDED_BY(mutex_);</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  std::atomic<bool> stopped_boolean_ GUARDED_BY(mutex_);</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  std::atomic<bool>* stopped_ GUARDED_BY(mutex_);</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> };</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  </div>
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<div class="line"><a name="l00428"></a><span class="lineno"><a class="line" href="classoperations__research_1_1NestedTimeLimit.html"> 428</a></span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1NestedTimeLimit.html">NestedTimeLimit</a> {</div>
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|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keyword">public</span>:</div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <a class="code" href="classoperations__research_1_1NestedTimeLimit.html#af23d2dc1b291081b642a728cf0033987">NestedTimeLimit</a>(<a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* base_time_limit, <span class="keywordtype">double</span> limit_in_seconds,</div>
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<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordtype">double</span> deterministic_limit);</div>
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<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  </div>
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<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <a class="code" href="classoperations__research_1_1NestedTimeLimit.html#acc74615391497a1874ffb69d751f80af">~NestedTimeLimit</a>();</div>
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<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  </div>
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<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Parameters></div>
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<div class="line"><a name="l00450"></a><span class="lineno"><a class="line" href="classoperations__research_1_1NestedTimeLimit.html#a3b7596f291aadf69b593164aca3505ef"> 450</a></span>  <span class="keyword">static</span> std::unique_ptr<NestedTimeLimit> <a class="code" href="classoperations__research_1_1NestedTimeLimit.html#a3b7596f291aadf69b593164aca3505ef">FromBaseTimeLimitAndParameters</a>(</div>
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<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* time_limit, <span class="keyword">const</span> Parameters& parameters) {</div>
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<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">return</span> absl::make_unique<NestedTimeLimit>(</div>
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<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  time_limit, parameters.max_time_in_seconds(),</div>
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<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  parameters.max_deterministic_time());</div>
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<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  }</div>
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<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  </div>
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<div class="line"><a name="l00463"></a><span class="lineno"><a class="line" href="classoperations__research_1_1NestedTimeLimit.html#a7e35d44d642ce651a7b5c7264ed6cc9c"> 463</a></span>  <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* <a class="code" href="classoperations__research_1_1NestedTimeLimit.html#a7e35d44d642ce651a7b5c7264ed6cc9c">GetTimeLimit</a>() { <span class="keywordflow">return</span> &time_limit_; }</div>
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<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  </div>
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<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* <span class="keyword">const</span> base_time_limit_;</div>
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<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a> time_limit_;</div>
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<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  </div>
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<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  DISALLOW_COPY_AND_ASSIGN(<a class="code" href="classoperations__research_1_1NestedTimeLimit.html">NestedTimeLimit</a>);</div>
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<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> };</div>
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<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  </div>
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<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment">// ################## Implementations below #####################</span></div>
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<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  </div>
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<div class="line"><a name="l00474"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#aa0975c0aa18ee607a54e7c4c8986ff0f"> 474</a></span> <span class="keyword">inline</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a0598aaf87dab140f870c8ada2a1f3a39">TimeLimit::TimeLimit</a>(<span class="keywordtype">double</span> limit_in_seconds, <span class="keywordtype">double</span> deterministic_limit,</div>
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<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordtype">double</span> instruction_limit)</div>
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<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  : safety_buffer_ns_(static_cast<int64>(kSafetyBufferSeconds * 1e9)),</div>
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<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  running_max_(kHistorySize),</div>
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  external_boolean_as_limit_(nullptr) {</div>
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<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  ResetTimers(limit_in_seconds, deterministic_limit, instruction_limit);</div>
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<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> }</div>
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<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  </div>
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<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> TimeLimit::ResetTimers(<span class="keywordtype">double</span> limit_in_seconds,</div>
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<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordtype">double</span> deterministic_limit,</div>
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<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordtype">double</span> instruction_limit) {</div>
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<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordflow">if</span> (external_boolean_as_limit_ != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  *external_boolean_as_limit_ = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div>
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<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  elapsed_deterministic_time_ = 0.0;</div>
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<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  deterministic_limit_ = deterministic_limit;</div>
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<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  instruction_limit_ = instruction_limit;</div>
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<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  </div>
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<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">if</span> (FLAGS_time_limit_use_usertime) {</div>
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<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  user_timer_.Start();</div>
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<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  limit_in_seconds_ = limit_in_seconds;</div>
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<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  }</div>
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<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor">#ifdef HAS_PERF_SUBSYSTEM</span></div>
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<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">if</span> (FLAGS_time_limit_use_instruction_count) {</div>
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<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  perf_subsystem_.CleanUp();</div>
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<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  perf_subsystem_.AddEvent(GetInstructionRetiredEventName());</div>
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<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  perf_subsystem_.StartCollecting();</div>
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<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  }</div>
|
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<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor">#endif // HAS_PERF_SUBSYSTEM</span></div>
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<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  start_ns_ = absl::GetCurrentTimeNanos();</div>
|
|
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  last_ns_ = start_ns_;</div>
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<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  limit_ns_ = limit_in_seconds >= 1e-9 * (kint64max - start_ns_)</div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  ? kint64max</div>
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<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  : static_cast<int64>(limit_in_seconds * 1e9) + start_ns_;</div>
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<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> }</div>
|
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<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  </div>
|
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<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Parameters></div>
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<div class="line"><a name="l00511"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a312550ebabce586fb77c49e813c610f8"> 511</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a312550ebabce586fb77c49e813c610f8">TimeLimit::ResetLimitFromParameters</a>(<span class="keyword">const</span> Parameters& parameters) {</div>
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<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  ResetTimers(parameters.max_time_in_seconds(),</div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  parameters.max_deterministic_time(),</div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  std::numeric_limits<double>::infinity());</div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> }</div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  </div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#ad0cdf04d71ac4f14262eb4871041ddbd"> 517</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#ad0cdf04d71ac4f14262eb4871041ddbd">TimeLimit::MergeWithGlobalTimeLimit</a>(<a class="code" href="classoperations__research_1_1TimeLimit.html">TimeLimit</a>* other) {</div>
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<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">if</span> (other == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  ResetTimers(</div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  std::min(<a class="code" href="classoperations__research_1_1TimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">GetTimeLeft</a>(), other-><a class="code" href="classoperations__research_1_1TimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">GetTimeLeft</a>()),</div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  std::min(<a class="code" href="classoperations__research_1_1TimeLimit.html#a362a88bfe50d83c028154a62ef53e780">GetDeterministicTimeLeft</a>(), other-><a class="code" href="classoperations__research_1_1TimeLimit.html#a362a88bfe50d83c028154a62ef53e780">GetDeterministicTimeLeft</a>()),</div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  std::numeric_limits<double>::infinity());</div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">if</span> (other-><a class="code" href="classoperations__research_1_1TimeLimit.html#a30ac580cb264bf8e92696890f212727e">ExternalBooleanAsLimit</a>() != <span class="keyword">nullptr</span>) {</div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <a class="code" href="classoperations__research_1_1TimeLimit.html#a5b6cf15a55615535aa54e71103de8d9f">RegisterExternalBooleanAsLimit</a>(other-><a class="code" href="classoperations__research_1_1TimeLimit.html#a30ac580cb264bf8e92696890f212727e">ExternalBooleanAsLimit</a>());</div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  }</div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> }</div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  </div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a4cb3517d59bf4642a85294267736af20"> 528</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a4cb3517d59bf4642a85294267736af20">TimeLimit::ReadInstructionCounter</a>() {</div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="preprocessor">#ifdef HAS_PERF_SUBSYSTEM</span></div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="keywordflow">if</span> (FLAGS_time_limit_use_instruction_count) {</div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">return</span> perf_subsystem_.ReadCounters().GetScaledOrDie(</div>
|
|
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  GetInstructionRetiredEventName());</div>
|
|
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  }</div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="preprocessor">#endif // HAS_PERF_SUBSYSTEM</span></div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> }</div>
|
|
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  </div>
|
|
<div class="line"><a name="l00538"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a810d5f7aaf80cc09cf5a094e20c1aaca"> 538</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">TimeLimit::LimitReached</a>() {</div>
|
|
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keywordflow">if</span> (external_boolean_as_limit_ != <span class="keyword">nullptr</span> &&</div>
|
|
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  external_boolean_as_limit_->load()) {</div>
|
|
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  }</div>
|
|
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  </div>
|
|
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordflow">if</span> (<a class="code" href="classoperations__research_1_1TimeLimit.html#a362a88bfe50d83c028154a62ef53e780">GetDeterministicTimeLeft</a>() <= 0.0) {</div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  }</div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  </div>
|
|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="preprocessor">#ifdef HAS_PERF_SUBSYSTEM</span></div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">if</span> (<a class="code" href="classoperations__research_1_1TimeLimit.html#a4cb3517d59bf4642a85294267736af20">ReadInstructionCounter</a>() >= instruction_limit_) {</div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  }</div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="preprocessor">#endif // HAS_PERF_SUBSYSTEM</span></div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  </div>
|
|
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keyword">const</span> int64 current_ns = absl::GetCurrentTimeNanos();</div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  running_max_.Add(std::max(safety_buffer_ns_, current_ns - last_ns_));</div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  last_ns_ = current_ns;</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="keywordflow">if</span> (current_ns + running_max_.GetCurrentMax() >= limit_ns_) {</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">if</span> (FLAGS_time_limit_use_usertime) {</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="comment">// To avoid making many system calls, we only check the user time when</span></div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="comment">// the "absolute" time limit has been reached. Note that the user time</span></div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="comment">// should advance more slowly, so this is correct.</span></div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> time_left_s = limit_in_seconds_ - user_timer_.Get();</div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keywordflow">if</span> (time_left_s > <a class="code" href="classoperations__research_1_1TimeLimit.html#a1837453fa693143e6ec334701557a448">kSafetyBufferSeconds</a>) {</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  limit_ns_ = static_cast<int64>(time_left_s * 1e9) + last_ns_;</div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  }</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  }</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  </div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="comment">// To ensure that future calls to LimitReached() will return true.</span></div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  limit_ns_ = 0;</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  }</div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> }</div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  </div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715"> 576</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">TimeLimit::GetTimeLeft</a>()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">if</span> (limit_ns_ == kint64max) <span class="keywordflow">return</span> std::numeric_limits<double>::infinity();</div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keyword">const</span> int64 delta_ns = limit_ns_ - absl::GetCurrentTimeNanos();</div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">if</span> (delta_ns < 0) <span class="keywordflow">return</span> 0.0;</div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keywordflow">if</span> (FLAGS_time_limit_use_usertime) {</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keywordflow">return</span> std::max(limit_in_seconds_ - user_timer_.Get(), 0.0);</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keywordflow">return</span> delta_ns * 1e-9;</div>
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<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  }</div>
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<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> }</div>
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<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  </div>
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<div class="line"><a name="l00587"></a><span class="lineno"><a class="line" href="classoperations__research_1_1TimeLimit.html#a0be73bea3d751ca2926c1cd616abb31e"> 587</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classoperations__research_1_1TimeLimit.html#a0be73bea3d751ca2926c1cd616abb31e">TimeLimit::GetInstructionsLeft</a>() {</div>
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<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="keywordflow">return</span> std::max(instruction_limit_ - <a class="code" href="classoperations__research_1_1TimeLimit.html#a4cb3517d59bf4642a85294267736af20">ReadInstructionCounter</a>(), 0.0);</div>
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<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> }</div>
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<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  </div>
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<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> } <span class="comment">// namespace operations_research</span></div>
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<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  </div>
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<div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="preprocessor">#endif // OR_TOOLS_UTIL_TIME_LIMIT_H_</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a517ffd071860d7efd76134e25f6f03e1"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a517ffd071860d7efd76134e25f6f03e1">operations_research::TimeLimit::Infinite</a></div><div class="ttdeci">static std::unique_ptr< TimeLimit > Infinite()</div><div class="ttdoc">Creates a time limit object that uses infinite time for wall time, deterministic time and instruction...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00135">time_limit.h:135</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a362a88bfe50d83c028154a62ef53e780"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a362a88bfe50d83c028154a62ef53e780">operations_research::TimeLimit::GetDeterministicTimeLeft</a></div><div class="ttdeci">double GetDeterministicTimeLeft() const</div><div class="ttdoc">Returns the remaining deterministic time before LimitReached() returns true due to the deterministic ...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00213">time_limit.h:213</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a43229b9a540c5b4c3751ebb13e73ace8"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a43229b9a540c5b4c3751ebb13e73ace8">operations_research::TimeLimit::SetInstructionLimit</a></div><div class="ttdeci">void SetInstructionLimit(double instruction_limit)</div><div class="ttdoc">Sets the instruction limit.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00172">time_limit.h:172</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1NestedTimeLimit_html_acc74615391497a1874ffb69d751f80af"><div class="ttname"><a href="classoperations__research_1_1NestedTimeLimit.html#acc74615391497a1874ffb69d751f80af">operations_research::NestedTimeLimit::~NestedTimeLimit</a></div><div class="ttdeci">~NestedTimeLimit()</div><div class="ttdoc">Updates elapsed deterministic time in the base time limit object.</div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html">operations_research::SharedTimeLimit</a></div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00341">time_limit.h:341</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_ac7e861414a70fc937d18bc7ca743fc98"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#ac7e861414a70fc937d18bc7ca743fc98">operations_research::SharedTimeLimit::GetElapsedDeterministicTime</a></div><div class="ttdeci">double GetElapsedDeterministicTime() const</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00386">time_limit.h:386</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a764be64f3029f8b8e23511061d8de355"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a764be64f3029f8b8e23511061d8de355">operations_research::TimeLimit::DebugString</a></div><div class="ttdeci">std::string DebugString() const</div><div class="ttdoc">Returns information about the time limit object in a human-readable form.</div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_ad0cdf04d71ac4f14262eb4871041ddbd"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#ad0cdf04d71ac4f14262eb4871041ddbd">operations_research::TimeLimit::MergeWithGlobalTimeLimit</a></div><div class="ttdeci">void MergeWithGlobalTimeLimit(TimeLimit *other)</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00517">time_limit.h:517</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a1837453fa693143e6ec334701557a448"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a1837453fa693143e6ec334701557a448">operations_research::TimeLimit::kSafetyBufferSeconds</a></div><div class="ttdeci">static const double kSafetyBufferSeconds</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00108">time_limit.h:108</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_ae3fe2e2b613455b49c6cc74dd3c7581e"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#ae3fe2e2b613455b49c6cc74dd3c7581e">operations_research::TimeLimit::GetElapsedTime</a></div><div class="ttdeci">double GetElapsedTime() const</div><div class="ttdoc">Returns the time elapsed in seconds since the construction of this object.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00252">time_limit.h:252</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_ad068edb54c705c548c20e4ba47b4e3a8"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#ad068edb54c705c548c20e4ba47b4e3a8">operations_research::TimeLimit::AdvanceDeterministicTime</a></div><div class="ttdeci">void AdvanceDeterministicTime(double deterministic_duration, const char *counter_name)</div><div class="ttdoc">Advances the deterministic time.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00241">time_limit.h:241</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a0be73bea3d751ca2926c1cd616abb31e"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a0be73bea3d751ca2926c1cd616abb31e">operations_research::TimeLimit::GetInstructionsLeft</a></div><div class="ttdeci">double GetInstructionsLeft()</div><div class="ttdoc">Returns the number of instructions left to reach the limit.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00587">time_limit.h:587</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_ad837e6231722ead53bbaf1c6e8f66032"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#ad837e6231722ead53bbaf1c6e8f66032">operations_research::SharedTimeLimit::LimitReached</a></div><div class="ttdeci">bool LimitReached() const</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00359">time_limit.h:359</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_a3d37e6e18c64cbaef0e3a118aeb351da"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#a3d37e6e18c64cbaef0e3a118aeb351da">operations_research::SharedTimeLimit::UpdateLocalLimit</a></div><div class="ttdeci">void UpdateLocalLimit(TimeLimit *local_limit)</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00371">time_limit.h:371</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_ac62fbbc5383a86a9fe334e3213f6244b"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#ac62fbbc5383a86a9fe334e3213f6244b">operations_research::TimeLimit::kHistorySize</a></div><div class="ttdeci">static const int kHistorySize</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00109">time_limit.h:109</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8h_source.html#l00052">cp_model.h:52</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_ac814f11492bfc0b561c58bf951e1b031"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#ac814f11492bfc0b561c58bf951e1b031">operations_research::SharedTimeLimit::~SharedTimeLimit</a></div><div class="ttdeci">~SharedTimeLimit()</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00353">time_limit.h:353</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_ac7e861414a70fc937d18bc7ca743fc98"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#ac7e861414a70fc937d18bc7ca743fc98">operations_research::TimeLimit::GetElapsedDeterministicTime</a></div><div class="ttdeci">double GetElapsedDeterministicTime() const</div><div class="ttdoc">Returns the elapsed deterministic time since the construction of this object.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00261">time_limit.h:261</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_af90cfd1fc238433fc303ee28c5914eb9"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9">operations_research::TimeLimit::AdvanceDeterministicTime</a></div><div class="ttdeci">void AdvanceDeterministicTime(double deterministic_duration)</div><div class="ttdoc">Advances the deterministic time.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00227">time_limit.h:227</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html">operations_research::TimeLimit</a></div><div class="ttdoc">A simple class to enforce both an elapsed time limit and a deterministic time limit in the same threa...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00106">time_limit.h:106</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1NestedTimeLimit_html_a7e35d44d642ce651a7b5c7264ed6cc9c"><div class="ttname"><a href="classoperations__research_1_1NestedTimeLimit.html#a7e35d44d642ce651a7b5c7264ed6cc9c">operations_research::NestedTimeLimit::GetTimeLimit</a></div><div class="ttdeci">TimeLimit * GetTimeLimit()</div><div class="ttdoc">Returns a time limit object that represents the combination of the overall time limit and the part-sp...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00463">time_limit.h:463</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a0598aaf87dab140f870c8ada2a1f3a39"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a0598aaf87dab140f870c8ada2a1f3a39">operations_research::TimeLimit::TimeLimit</a></div><div class="ttdeci">TimeLimit()</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00127">time_limit.h:127</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a810d5f7aaf80cc09cf5a094e20c1aaca"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">operations_research::TimeLimit::LimitReached</a></div><div class="ttdeci">bool LimitReached()</div><div class="ttdoc">Returns true when the external limit is true, or the deterministic time is over the deterministic lim...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00538">time_limit.h:538</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1NestedTimeLimit_html_a3b7596f291aadf69b593164aca3505ef"><div class="ttname"><a href="classoperations__research_1_1NestedTimeLimit.html#a3b7596f291aadf69b593164aca3505ef">operations_research::NestedTimeLimit::FromBaseTimeLimitAndParameters</a></div><div class="ttdeci">static std::unique_ptr< NestedTimeLimit > FromBaseTimeLimitAndParameters(TimeLimit *time_limit, const Parameters &parameters)</div><div class="ttdoc">Creates a time limit object initialized from a base time limit and an object that provides methods ma...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00450">time_limit.h:450</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a4273b83b06bfbf856393db6d0a9b8715"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">operations_research::TimeLimit::GetTimeLeft</a></div><div class="ttdeci">double GetTimeLeft() const</div><div class="ttdoc">Returns the time left on this limit, or 0 if the limit was reached (it never returns a negative value...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00576">time_limit.h:576</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_a17a237457e57625296e6b24feb19c60a"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#a17a237457e57625296e6b24feb19c60a">operations_research::SharedTimeLimit::Stop</a></div><div class="ttdeci">void Stop()</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00366">time_limit.h:366</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_a4273b83b06bfbf856393db6d0a9b8715"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#a4273b83b06bfbf856393db6d0a9b8715">operations_research::SharedTimeLimit::GetTimeLeft</a></div><div class="ttdeci">double GetTimeLeft() const</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00381">time_limit.h:381</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a312550ebabce586fb77c49e813c610f8"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a312550ebabce586fb77c49e813c610f8">operations_research::TimeLimit::ResetLimitFromParameters</a></div><div class="ttdeci">void ResetLimitFromParameters(const Parameters &parameters)</div><div class="ttdoc">Sets new time limits.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00511">time_limit.h:511</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a4cb3517d59bf4642a85294267736af20"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a4cb3517d59bf4642a85294267736af20">operations_research::TimeLimit::ReadInstructionCounter</a></div><div class="ttdeci">double ReadInstructionCounter()</div><div class="ttdoc">Returns the number of instructions executed since the creation of this object.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00528">time_limit.h:528</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a30ac580cb264bf8e92696890f212727e"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a30ac580cb264bf8e92696890f212727e">operations_research::TimeLimit::ExternalBooleanAsLimit</a></div><div class="ttdeci">std::atomic< bool > * ExternalBooleanAsLimit() const</div><div class="ttdoc">Returns the current external Boolean limit.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00283">time_limit.h:283</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_af90cfd1fc238433fc303ee28c5914eb9"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#af90cfd1fc238433fc303ee28c5914eb9">operations_research::SharedTimeLimit::AdvanceDeterministicTime</a></div><div class="ttdeci">void AdvanceDeterministicTime(double deterministic_duration)</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00376">time_limit.h:376</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a5b6cf15a55615535aa54e71103de8d9f"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a5b6cf15a55615535aa54e71103de8d9f">operations_research::TimeLimit::RegisterExternalBooleanAsLimit</a></div><div class="ttdeci">void RegisterExternalBooleanAsLimit(std::atomic< bool > *external_boolean_as_limit)</div><div class="ttdoc">Registers the external Boolean to check when LimitReached() is called.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00275">time_limit.h:275</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1SharedTimeLimit_html_ab93548508ad14a5cecdaafa67db47cd9"><div class="ttname"><a href="classoperations__research_1_1SharedTimeLimit.html#ab93548508ad14a5cecdaafa67db47cd9">operations_research::SharedTimeLimit::SharedTimeLimit</a></div><div class="ttdeci">SharedTimeLimit(TimeLimit *time_limit)</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00343">time_limit.h:343</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a96f95e438ca7940b115c838c96c06d87"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a96f95e438ca7940b115c838c96c06d87">operations_research::TimeLimit::FromParameters</a></div><div class="ttdeci">static std::unique_ptr< TimeLimit > FromParameters(const Parameters &parameters)</div><div class="ttdoc">Creates a time limit object initialized from an object that provides methods max_time_in_seconds() an...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00160">time_limit.h:160</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1NestedTimeLimit_html"><div class="ttname"><a href="classoperations__research_1_1NestedTimeLimit.html">operations_research::NestedTimeLimit</a></div><div class="ttdoc">Provides a way to nest time limits for algorithms where a certain part of the computation is bounded ...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00428">time_limit.h:428</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a9d28f062361ac553f8bc1da250b205bd"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a9d28f062361ac553f8bc1da250b205bd">operations_research::TimeLimit::operator=</a></div><div class="ttdeci">TimeLimit & operator=(const TimeLimit &)=delete</div></div>
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<div class="ttc" id="aclassoperations__research_1_1NestedTimeLimit_html_af23d2dc1b291081b642a728cf0033987"><div class="ttname"><a href="classoperations__research_1_1NestedTimeLimit.html#af23d2dc1b291081b642a728cf0033987">operations_research::NestedTimeLimit::NestedTimeLimit</a></div><div class="ttdeci">NestedTimeLimit(TimeLimit *base_time_limit, double limit_in_seconds, double deterministic_limit)</div><div class="ttdoc">Creates the nested time limit.</div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a640ae7a07a6de8fe45a5526326f3b028"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a640ae7a07a6de8fe45a5526326f3b028">operations_research::TimeLimit::FromDeterministicTime</a></div><div class="ttdeci">static std::unique_ptr< TimeLimit > FromDeterministicTime(double deterministic_limit)</div><div class="ttdoc">Creates a time limit object that puts limit only on the deterministic time.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00145">time_limit.h:145</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1TimeLimit_html_a4c1bbdcb2a449b42a788178d2c3d2477"><div class="ttname"><a href="classoperations__research_1_1TimeLimit.html#a4c1bbdcb2a449b42a788178d2c3d2477">operations_research::TimeLimit::ParallelTimeLimit</a></div><div class="ttdeci">friend class ParallelTimeLimit</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00337">time_limit.h:337</a></div></div>
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<div class="ttc" id="atime__limit_8h_html_a05c25f55df53c30b07aa2585a8424921"><div class="ttname"><a href="time__limit_8h.html#a05c25f55df53c30b07aa2585a8424921">DECLARE_bool</a></div><div class="ttdeci">DECLARE_bool(time_limit_use_usertime)</div><div class="ttdoc">Enables changing the behavior of the TimeLimit class to use -b usertime instead of walltime.</div></div>
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