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<a href="base_2sysinfo_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2021 Google LLC</span></div><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><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><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><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><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><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><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><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><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#if defined(__GNUC__) && defined(__linux__)</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <unistd.h></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#if defined(__APPLE__) && defined(__GNUC__) // Mac OS X</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <mach/mach_init.h></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <mach/task.h></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#elif defined(__FreeBSD__) // FreeBSD</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <sys/resource.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <sys/time.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#elif defined(_MSC_VER) // WINDOWS</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// clang-format off</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <windows.h></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <psapi.h></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// clang-format on</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <cstdio></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "<a class="code" href="base_2sysinfo_8h.html">ortools/base/sysinfo.h</a>"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// GetProcessMemoryUsage</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#if defined(__APPLE__) && defined(__GNUC__) // Mac OS X</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> int64_t <a class="code" href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819">GetProcessMemoryUsage</a>() {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  task_t task = MACH_PORT_NULL;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">struct </span>task_basic_info t_info;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span> (KERN_SUCCESS != task_info(mach_task_self(), TASK_BASIC_INFO,</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  (task_info_t)&t_info, &t_info_count)) {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  int64_t resident_memory = t_info.resident_size;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> resident_memory;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#elif defined(__GNUC__) && !defined(__FreeBSD__) // LINUX</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> int64_t <a class="code" href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819">GetProcessMemoryUsage</a>() {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">unsigned</span> size = 0;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">char</span> buf[30];</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  snprintf(buf, <span class="keyword">sizeof</span>(buf), <span class="stringliteral">"/proc/%u/statm"</span>, (<span class="keywordtype">unsigned</span>)getpid());</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  FILE* <span class="keyword">const</span> pf = fopen(buf, <span class="stringliteral">"r"</span>);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (pf) {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (fscanf(pf, <span class="stringliteral">"%u"</span>, &size) != 1) <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  fclose(pf);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> size * int64_t{1024};</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#elif defined(__FreeBSD__) // FreeBSD</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> int64_t <a class="code" href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819">GetProcessMemoryUsage</a>() {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">int</span> who = RUSAGE_SELF;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">struct </span>rusage rusage;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  getrusage(who, &rusage);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> (int64_t)(rusage.ru_maxrss * int64_t{1024});</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#elif defined(_MSC_VER) // WINDOWS</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> int64_t <a class="code" href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819">GetProcessMemoryUsage</a>() {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  HANDLE hProcess;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  PROCESS_MEMORY_COUNTERS pmc;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE,</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  GetCurrentProcessId());</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  int64_t memory = 0;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (hProcess) {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (GetProcessMemoryInfo(hProcess, &pmc, <span class="keyword">sizeof</span>(pmc))) {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  memory = pmc.WorkingSetSize;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  CloseHandle(hProcess);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> memory;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> }</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#else // Unknown, returning 0.</span></div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819"> 85</a></span> int64_t <a class="code" href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819">GetProcessMemoryUsage</a>() { <span class="keywordflow">return</span> 0; }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> } <span class="comment">// namespace operations_research</span></div><div class="ttc" id="namespaceoperations__research_html_a4b5040495fbb7e6b236b900e8d2b5819"><div class="ttname"><a href="namespaceoperations__research.html#a4b5040495fbb7e6b236b900e8d2b5819">operations_research::GetProcessMemoryUsage</a></div><div class="ttdeci">int64_t GetProcessMemoryUsage()</div><div class="ttdef"><b>Definition:</b> <a href="base_2sysinfo_8cc_source.html#l00085">base/sysinfo.cc:85</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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