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<div id="projectname">Hardware Locality (hwloc)
 <span id="projectnumber">2.4.1</span>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_5cb306d949c7931a3b6c77517393dd34.html">hwloc</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright © 2009 CNRS</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright © 2009-2020 Inria. All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright © 2009-2011 Université Bordeaux</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * Copyright © 2011 Cisco Systems, Inc. All rights reserved.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * See COPYING in top-level directory.</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>  </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef HWLOC_GLIBC_SCHED_H</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define HWLOC_GLIBC_SCHED_H</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "hwloc.h"</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "hwloc/helper.h"</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <assert.h></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#if !defined _GNU_SOURCE || (!defined _SCHED_H && !defined _SCHED_H_) || (!defined CPU_SETSIZE && !defined sched_priority)</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#error Please make sure to include sched.h before including glibc-sched.h, and define _GNU_SOURCE before any inclusion of sched.h</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</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">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#endif</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>  </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#ifdef HWLOC_HAVE_CPU_SET</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>  </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">static</span> __hwloc_inline <span class="keywordtype">int</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="a00223.html#ga88699a0c86c66a9b7baa3468cd9d24c3"> 57</a></span> <a class="code" href="a00223.html#ga88699a0c86c66a9b7baa3468cd9d24c3">hwloc_cpuset_to_glibc_sched_affinity</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology __hwloc_attribute_unused, <a class="code" href="a00189.html#ga1f784433e9b606261f62d1134f6a3b25">hwloc_const_cpuset_t</a> hwlocset,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  cpu_set_t *schedset, <span class="keywordtype">size_t</span> schedsetsize)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#ifdef CPU_ZERO_S</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">unsigned</span> cpu;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  CPU_ZERO_S(schedsetsize, schedset);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="a00211.html#ga3f6861045a8029ade373510ffa727d2a">hwloc_bitmap_foreach_begin</a>(cpu, hwlocset)</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  CPU_SET_S(cpu, schedsetsize, schedset);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="a00211.html#gafcf3246db406218d4e155735b3fa6528">hwloc_bitmap_foreach_end</a>();</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#else </span><span class="comment">/* !CPU_ZERO_S */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">unsigned</span> cpu;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  CPU_ZERO(schedset);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  assert(schedsetsize == <span class="keyword">sizeof</span>(cpu_set_t));</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="a00211.html#ga3f6861045a8029ade373510ffa727d2a">hwloc_bitmap_foreach_begin</a>(cpu, hwlocset)</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  CPU_SET(cpu, schedset);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="a00211.html#gafcf3246db406218d4e155735b3fa6528">hwloc_bitmap_foreach_end</a>();</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#endif </span><span class="comment">/* !CPU_ZERO_S */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">static</span> __hwloc_inline <span class="keywordtype">int</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="a00223.html#ga8ec807ec17de57fa77aa5cfd6c8e4bfb"> 85</a></span> <a class="code" href="a00223.html#ga8ec807ec17de57fa77aa5cfd6c8e4bfb">hwloc_cpuset_from_glibc_sched_affinity</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology __hwloc_attribute_unused, <a class="code" href="a00189.html#ga4bbf39b68b6f568fb92739e7c0ea7801">hwloc_cpuset_t</a> hwlocset,</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">const</span> cpu_set_t *schedset, <span class="keywordtype">size_t</span> schedsetsize)</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="keywordtype">int</span> cpu;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#ifdef CPU_ZERO_S</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">int</span> count;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="a00211.html#gaa97c5217613c8cae9862287170ea2132">hwloc_bitmap_zero</a>(hwlocset);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#ifdef CPU_ZERO_S</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  count = CPU_COUNT_S(schedsetsize, schedset);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  cpu = 0;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">while</span> (count) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (CPU_ISSET_S(cpu, schedsetsize, schedset)) {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="a00211.html#ga062dbff93baeff3b425a7260c5463646">hwloc_bitmap_set</a>(hwlocset, cpu);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  count--;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  cpu++;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor">#else </span><span class="comment">/* !CPU_ZERO_S */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">/* sched.h does not support dynamic cpu_set_t (introduced in glibc 2.7),</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> * assume we have a very old interface without CPU_COUNT (added in 2.6)</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  assert(schedsetsize == <span class="keyword">sizeof</span>(cpu_set_t));</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">for</span>(cpu=0; cpu<CPU_SETSIZE; cpu++)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (CPU_ISSET(cpu, schedset))</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="a00211.html#ga062dbff93baeff3b425a7260c5463646">hwloc_bitmap_set</a>(hwlocset, cpu);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#endif </span><span class="comment">/* !CPU_ZERO_S */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor">#endif </span><span class="comment">/* CPU_SET */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> } <span class="comment">/* extern "C" */</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="preprocessor">#endif </span><span class="comment">/* HWLOC_GLIBC_SCHED_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="aa00189_html_ga1f784433e9b606261f62d1134f6a3b25"><div class="ttname"><a href="a00189.html#ga1f784433e9b606261f62d1134f6a3b25">hwloc_const_cpuset_t</a></div><div class="ttdeci">hwloc_const_bitmap_t hwloc_const_cpuset_t</div><div class="ttdoc">A non-modifiable hwloc_cpuset_t.</div><div class="ttdef"><b>Definition:</b> hwloc.h:142</div></div>
<div class="ttc" id="aa00189_html_ga4bbf39b68b6f568fb92739e7c0ea7801"><div class="ttname"><a href="a00189.html#ga4bbf39b68b6f568fb92739e7c0ea7801">hwloc_cpuset_t</a></div><div class="ttdeci">hwloc_bitmap_t hwloc_cpuset_t</div><div class="ttdoc">A CPU set is a bitmap whose bits are set according to CPU physical OS indexes.</div><div class="ttdef"><b>Definition:</b> hwloc.h:140</div></div>
<div class="ttc" id="aa00192_html_ga9d1e76ee15a7dee158b786c30b6a6e38"><div class="ttname"><a href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a></div><div class="ttdeci">struct hwloc_topology * hwloc_topology_t</div><div class="ttdoc">Topology context.</div><div class="ttdef"><b>Definition:</b> hwloc.h:691</div></div>
<div class="ttc" id="aa00211_html_ga062dbff93baeff3b425a7260c5463646"><div class="ttname"><a href="a00211.html#ga062dbff93baeff3b425a7260c5463646">hwloc_bitmap_set</a></div><div class="ttdeci">int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id)</div><div class="ttdoc">Add index id in bitmap bitmap.</div></div>
<div class="ttc" id="aa00211_html_ga3f6861045a8029ade373510ffa727d2a"><div class="ttname"><a href="a00211.html#ga3f6861045a8029ade373510ffa727d2a">hwloc_bitmap_foreach_begin</a></div><div class="ttdeci">#define hwloc_bitmap_foreach_begin(id, bitmap)</div><div class="ttdoc">Loop macro iterating on bitmap bitmap.</div><div class="ttdef"><b>Definition:</b> bitmap.h:370</div></div>
<div class="ttc" id="aa00211_html_gaa97c5217613c8cae9862287170ea2132"><div class="ttname"><a href="a00211.html#gaa97c5217613c8cae9862287170ea2132">hwloc_bitmap_zero</a></div><div class="ttdeci">void hwloc_bitmap_zero(hwloc_bitmap_t bitmap)</div><div class="ttdoc">Empty the bitmap bitmap.</div></div>
<div class="ttc" id="aa00211_html_gafcf3246db406218d4e155735b3fa6528"><div class="ttname"><a href="a00211.html#gafcf3246db406218d4e155735b3fa6528">hwloc_bitmap_foreach_end</a></div><div class="ttdeci">#define hwloc_bitmap_foreach_end()</div><div class="ttdoc">End of loop macro iterating on a bitmap.</div><div class="ttdef"><b>Definition:</b> bitmap.h:384</div></div>
<div class="ttc" id="aa00223_html_ga88699a0c86c66a9b7baa3468cd9d24c3"><div class="ttname"><a href="a00223.html#ga88699a0c86c66a9b7baa3468cd9d24c3">hwloc_cpuset_to_glibc_sched_affinity</a></div><div class="ttdeci">static int hwloc_cpuset_to_glibc_sched_affinity(hwloc_topology_t topology, hwloc_const_cpuset_t hwlocset, cpu_set_t *schedset, size_t schedsetsize)</div><div class="ttdoc">Convert hwloc CPU set toposet into glibc sched affinity CPU set schedset.</div><div class="ttdef"><b>Definition:</b> glibc-sched.h:57</div></div>
<div class="ttc" id="aa00223_html_ga8ec807ec17de57fa77aa5cfd6c8e4bfb"><div class="ttname"><a href="a00223.html#ga8ec807ec17de57fa77aa5cfd6c8e4bfb">hwloc_cpuset_from_glibc_sched_affinity</a></div><div class="ttdeci">static int hwloc_cpuset_from_glibc_sched_affinity(hwloc_topology_t topology, hwloc_cpuset_t hwlocset, const cpu_set_t *schedset, size_t schedsetsize)</div><div class="ttdoc">Convert glibc sched affinity CPU set schedset into hwloc CPU set.</div><div class="ttdef"><b>Definition:</b> glibc-sched.h:85</div></div>
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