<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libzypp: zypp/thread/Once.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> /* @license 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--> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('Once_8h_source.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">Once.h</div> </div> </div><!--header--> <div class="contents"> <a href="Once_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">/*---------------------------------------------------------------------\</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">| ____ _ __ __ ___ |</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">| |__ / \ / / . \ . \ |</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">| / / \ V /| _/ _/ |</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">| /_____||_| |_| |_| |</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">\---------------------------------------------------------------------*/</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#ifndef ZYPP_THREAD_ONCE_H</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#define ZYPP_THREAD_ONCE_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">#include <pthread.h></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span><a class="code" href="namespacezypp.html">zypp</a></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> { </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keyword">namespace </span>thread</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</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> </div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="Once_8h.html#ae5b308534283baf9782e31f812de1a64"> 27</a></span> <span class="preprocessor"> #define ZYPP_ONCE_INIT PTHREAD_ONCE_INIT</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="l00032"></a><span class="lineno"><a class="line" href="namespacezypp_1_1thread.html#aa4fc67849c72a4034195ee7eaaee4240"> 32</a></span>  <span class="keyword">typedef</span> pthread_once_t <a class="code" href="namespacezypp_1_1thread.html#aa4fc67849c72a4034195ee7eaaee4240">OnceFlag</a>;</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="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">void</span> <a class="code" href="namespacezypp_1_1thread.html#a93f8b1d2a7e9c19ad0bb03f733373188">callOnce</a>(<a class="code" href="namespacezypp_1_1thread.html#aa4fc67849c72a4034195ee7eaaee4240">OnceFlag</a>& flag, <span class="keywordtype">void</span> (*func)());</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="namespacezypp_1_1thread.html#a93f8b1d2a7e9c19ad0bb03f733373188"> 50</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespacezypp_1_1thread.html#a93f8b1d2a7e9c19ad0bb03f733373188">callOnce</a>(<a class="code" href="namespacezypp_1_1thread.html#aa4fc67849c72a4034195ee7eaaee4240">OnceFlag</a>& flag, <span class="keywordtype">void</span> (*func)())</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  pthread_once(&flag, func);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  } <span class="comment">// namespace thread</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"></span>} <span class="comment">// namespace zypp</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#endif // ZYPP_THREAD_ONCE_H</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">/*</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">** vim: set ts=2 sts=2 sw=2 ai et:</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">*/</span></div><div class="ttc" id="namespacezypp_1_1thread_html_aa4fc67849c72a4034195ee7eaaee4240"><div class="ttname"><a href="namespacezypp_1_1thread.html#aa4fc67849c72a4034195ee7eaaee4240">zypp::thread::OnceFlag</a></div><div class="ttdeci">pthread_once_t OnceFlag</div><div class="ttdoc">The OnceFlag variable type.</div><div class="ttdef"><b>Definition:</b> <a href="Once_8h_source.html#l00032">Once.h:32</a></div></div> <div class="ttc" id="namespacezypp_1_1thread_html_a93f8b1d2a7e9c19ad0bb03f733373188"><div class="ttname"><a href="namespacezypp_1_1thread.html#a93f8b1d2a7e9c19ad0bb03f733373188">zypp::thread::callOnce</a></div><div class="ttdeci">void callOnce(OnceFlag &flag, void(*func)())</div><div class="ttdoc">Call once function.</div><div class="ttdef"><b>Definition:</b> <a href="Once_8h_source.html#l00050">Once.h:50</a></div></div> <div class="ttc" id="namespacezypp_html"><div class="ttname"><a href="namespacezypp.html">zypp</a></div><div class="ttdoc">Easy-to use interface to the ZYPP dependency resolver.</div><div class="ttdef"><b>Definition:</b> <a href="CodePitfalls_8doc_source.html#l00001">CodePitfalls.doc:1</a></div></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_c187b43c6f283d9fc95eff3f44ce072a.html">zypp</a></li><li class="navelem"><a class="el" href="dir_2323c3c6740d8c4ce7036c1f108fe7fd.html">thread</a></li><li class="navelem"><a class="el" href="Once_8h.html">Once.h</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.15 </li> </ul> </div> </body> </html>