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<title>Hardware Locality (hwloc): shmem.h Source File</title>
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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 © 2013-2018 Inria. All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * See COPYING in top-level directory.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>  </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef HWLOC_SHMEM_H</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#define HWLOC_SHMEM_H</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  </div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "hwloc.h"</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#elif 0</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> }</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="a00232.html#ga772ab52750cdd0eec85128df24888001"> 53</a></span> HWLOC_DECLSPEC <span class="keywordtype">int</span> <a class="code" href="a00232.html#ga772ab52750cdd0eec85128df24888001">hwloc_shmem_topology_get_length</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology,</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">size_t</span> *lengthp,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> flags);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="a00232.html#ga61b20e346fc76f76420e3a88cc80a671"> 82</a></span> HWLOC_DECLSPEC <span class="keywordtype">int</span> <a class="code" href="a00232.html#ga61b20e346fc76f76420e3a88cc80a671">hwloc_shmem_topology_write</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology,</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> fd, hwloc_uint64_t fileoffset,</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">void</span> *mmap_address, <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> flags);</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div>
<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="a00232.html#ga21545bd0f09d9b554c8e60a630e0e629"> 125</a></span> HWLOC_DECLSPEC <span class="keywordtype">int</span> <a class="code" href="a00232.html#ga21545bd0f09d9b554c8e60a630e0e629">hwloc_shmem_topology_adopt</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> *topologyp,</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">int</span> fd, hwloc_uint64_t fileoffset,</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">void</span> *mmap_address, <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> flags);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> } <span class="comment">/* extern "C" */</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor">#endif </span><span class="comment">/* HWLOC_SHMEM_H */</span><span class="preprocessor"></span></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="aa00232_html_ga21545bd0f09d9b554c8e60a630e0e629"><div class="ttname"><a href="a00232.html#ga21545bd0f09d9b554c8e60a630e0e629">hwloc_shmem_topology_adopt</a></div><div class="ttdeci">int hwloc_shmem_topology_adopt(hwloc_topology_t *topologyp, int fd, hwloc_uint64_t fileoffset, void *mmap_address, size_t length, unsigned long flags)</div><div class="ttdoc">Adopt a shared memory topology stored in a file.</div></div>
<div class="ttc" id="aa00232_html_ga61b20e346fc76f76420e3a88cc80a671"><div class="ttname"><a href="a00232.html#ga61b20e346fc76f76420e3a88cc80a671">hwloc_shmem_topology_write</a></div><div class="ttdeci">int hwloc_shmem_topology_write(hwloc_topology_t topology, int fd, hwloc_uint64_t fileoffset, void *mmap_address, size_t length, unsigned long flags)</div><div class="ttdoc">Duplicate a topology to a shared memory file.</div></div>
<div class="ttc" id="aa00232_html_ga772ab52750cdd0eec85128df24888001"><div class="ttname"><a href="a00232.html#ga772ab52750cdd0eec85128df24888001">hwloc_shmem_topology_get_length</a></div><div class="ttdeci">int hwloc_shmem_topology_get_length(hwloc_topology_t topology, size_t *lengthp, unsigned long flags)</div><div class="ttdoc">Get the required shared memory length for storing a topology.</div></div>
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