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<!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=11"/> <meta name="generator" content="Doxygen 1.9.3"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Apache Portable Runtime: apr_atomic.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="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr id="projectrow"> <td id="projectalign"> <div id="projectname">Apache Portable Runtime </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.9.3 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ $(function() { initMenu('',false,false,'search.php','Search'); }); /* @license-end */ </script> <div id="main-nav"></div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"><div class="title">apr_atomic.h</div></div> </div><!--header--> <div class="contents"> <a href="apr__atomic_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* Licensed to the Apache Software Foundation (ASF) under one or more</span></div> <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * this work for additional information regarding copyright ownership.</span></div> <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * the License. You may obtain a copy of the License at</span></div> <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> *</span></div> <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * See the License for the specific language governing permissions and</span></div> <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * limitations under the License.</span></div> <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> */</span></div> <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div> <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#ifndef APR_ATOMIC_H</span></div> <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#define APR_ATOMIC_H</span></div> <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"></span> </div> <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment">/**</span></div> <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment"> * @file apr_atomic.h</span></div> <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment"> * @brief APR Atomic Operations</span></div> <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment"> */</span></div> <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div> <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "apr.h"</span></div> <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="apr__pools_8h.html">apr_pools.h</a>"</span></div> <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div> <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#ifdef __cplusplus</span></div> <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div> <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="comment"></span> </div> <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment">/**</span></div> <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment"> * @defgroup apr_atomic Atomic Operations</span></div> <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment"> * @ingroup APR </span></div> <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment"> * @{</span></div> <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment"> */</span></div> <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment"></span> </div> <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">/**</span></div> <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment"> * this function is required on some platforms to initialize the</span></div> <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="comment"> * atomic operation's internal structures</span></div> <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="comment"> * @param p pool</span></div> <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment"> * @return APR_SUCCESS on successful completion</span></div> <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment"> * @remark Programs do NOT need to call this directly. APR will call this</span></div> <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment"> * automatically from apr_initialize().</span></div> <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment"> * @internal</span></div> <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment"> */</span></div> <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gaa89b4022de39ca4d1c2ae6715e888e97"> 47</a></span>APR_DECLARE(<a class="code hl_typedef" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a>) <a class="code hl_function" href="group__apr__atomic.html#gaa89b4022de39ca4d1c2ae6715e888e97">apr_atomic_init</a>(<a class="code hl_typedef" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *p);</div> <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div> <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="comment">/*</span></div> <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="comment"> * Atomic operations on 32-bit values</span></div> <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="comment"> * Note: Each of these functions internally implements a memory barrier</span></div> <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="comment"> * on platforms that require it</span></div> <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="comment"> */</span></div> <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="comment"></span> </div> <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment">/**</span></div> <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="comment"> * atomically read an apr_uint32_t from memory</span></div> <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment"> * @param mem the pointer</span></div> <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment"> */</span></div> <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gafba4de90e113d26536cff48418689771"> 59</a></span>APR_DECLARE(apr_uint32_t) <a class="code hl_function" href="group__apr__atomic.html#gafba4de90e113d26536cff48418689771">apr_atomic_read32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem);</div> <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="comment"></span> </div> <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="comment">/**</span></div> <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment"> * atomically set an apr_uint32_t in memory</span></div> <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="comment"> * @param val value that the object will assume</span></div> <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="comment"> */</span></div> <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gac689de9df18c093f66959227359328bb"> 66</a></span>APR_DECLARE(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__atomic.html#gac689de9df18c093f66959227359328bb">apr_atomic_set32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem, apr_uint32_t val);</div> <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="comment"></span> </div> <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="comment">/**</span></div> <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="comment"> * atomically add 'val' to an apr_uint32_t</span></div> <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="comment"> * @param val amount to add</span></div> <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="comment"> * @return old value pointed to by mem</span></div> <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="comment"> */</span></div> <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga3ef16e13b679710fafd5196713e17433"> 74</a></span>APR_DECLARE(apr_uint32_t) <a class="code hl_function" href="group__apr__atomic.html#ga3ef16e13b679710fafd5196713e17433">apr_atomic_add32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem, apr_uint32_t val);</div> <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="comment"></span> </div> <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="comment">/**</span></div> <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="comment"> * atomically subtract 'val' from an apr_uint32_t</span></div> <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="comment"> * @param val amount to subtract</span></div> <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="comment"> */</span></div> <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga4603396650e844bd987f01358ccb4df1"> 81</a></span>APR_DECLARE(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__atomic.html#ga4603396650e844bd987f01358ccb4df1">apr_atomic_sub32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem, apr_uint32_t val);</div> <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="comment"></span> </div> <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="comment">/**</span></div> <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="comment"> * atomically increment an apr_uint32_t by 1</span></div> <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="comment"> * @return old value pointed to by mem</span></div> <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="comment"> */</span></div> <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga4af33da5aa6493ec321af14bedfc47a9"> 88</a></span>APR_DECLARE(apr_uint32_t) <a class="code hl_function" href="group__apr__atomic.html#ga4af33da5aa6493ec321af14bedfc47a9">apr_atomic_inc32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem);</div> <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment"></span> </div> <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="comment">/**</span></div> <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="comment"> * atomically decrement an apr_uint32_t by 1</span></div> <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="comment"> * @param mem pointer to the atomic value</span></div> <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="comment"> * @return zero if the value becomes zero on decrement, otherwise non-zero</span></div> <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span><span class="comment"> */</span></div> <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga7a8d16335fdcd27f2baca90df35ad300"> 95</a></span>APR_DECLARE(<span class="keywordtype">int</span>) <a class="code hl_function" href="group__apr__atomic.html#ga7a8d16335fdcd27f2baca90df35ad300">apr_atomic_dec32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem);</div> <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="comment"></span> </div> <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><span class="comment">/**</span></div> <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="comment"> * compare an apr_uint32_t's value with 'cmp'.</span></div> <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span><span class="comment"> * If they are the same swap the value with 'with'</span></div> <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span><span class="comment"> * @param mem pointer to the value</span></div> <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><span class="comment"> * @param with what to swap it with</span></div> <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span><span class="comment"> * @param cmp the value to compare it to</span></div> <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span><span class="comment"> * @return the old value of *mem</span></div> <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span><span class="comment"> */</span></div> <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gae45c529f14f8489102382bd3fd4cce22"> 105</a></span>APR_DECLARE(apr_uint32_t) <a class="code hl_function" href="group__apr__atomic.html#gae45c529f14f8489102382bd3fd4cce22">apr_atomic_cas32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem, apr_uint32_t with,</div> <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> apr_uint32_t cmp);</div> <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span><span class="comment"></span> </div> <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span><span class="comment">/**</span></div> <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span><span class="comment"> * exchange an apr_uint32_t's value with 'val'.</span></div> <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span><span class="comment"> * @param mem pointer to the value</span></div> <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="comment"> * @param val what to swap it with</span></div> <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="comment"> * @return the old value of *mem</span></div> <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="comment"> */</span></div> <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga50850e462d65e0409d5a93a6b4ec26c6"> 114</a></span>APR_DECLARE(apr_uint32_t) <a class="code hl_function" href="group__apr__atomic.html#ga50850e462d65e0409d5a93a6b4ec26c6">apr_atomic_xchg32</a>(<span class="keyword">volatile</span> apr_uint32_t *mem, apr_uint32_t val);</div> <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div> <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="comment">/*</span></div> <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="comment"> * Atomic operations on 64-bit values</span></div> <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="comment"> * Note: Each of these functions internally implements a memory barrier</span></div> <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="comment"> * on platforms that require it</span></div> <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="comment"> */</span></div> <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span><span class="comment"></span> </div> <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span><span class="comment">/**</span></div> <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span><span class="comment"> * atomically read an apr_uint64_t from memory</span></div> <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span><span class="comment"> * @param mem the pointer</span></div> <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span><span class="comment"> */</span></div> <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gaabf8e658bc5c4c93c84520e7e021422e"> 126</a></span>APR_DECLARE(apr_uint64_t) <a class="code hl_function" href="group__apr__atomic.html#gaabf8e658bc5c4c93c84520e7e021422e">apr_atomic_read64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem);</div> <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span><span class="comment"></span> </div> <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="comment">/**</span></div> <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="comment"> * atomically set an apr_uint64_t in memory</span></div> <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="comment"> * @param val value that the object will assume</span></div> <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="comment"> */</span></div> <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gaca335823ac1ec13f60df3a848b393938"> 133</a></span>APR_DECLARE(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__atomic.html#gaca335823ac1ec13f60df3a848b393938">apr_atomic_set64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem, apr_uint64_t val);</div> <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span><span class="comment"></span> </div> <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="comment">/**</span></div> <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span><span class="comment"> * atomically add 'val' to an apr_uint64_t</span></div> <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span><span class="comment"> * @param val amount to add</span></div> <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span><span class="comment"> * @return old value pointed to by mem</span></div> <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span><span class="comment"> */</span></div> <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gafb476ad399f33ed4858601bbaa8f4073"> 141</a></span>APR_DECLARE(apr_uint64_t) <a class="code hl_function" href="group__apr__atomic.html#gafb476ad399f33ed4858601bbaa8f4073">apr_atomic_add64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem, apr_uint64_t val);</div> <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="comment"></span> </div> <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="comment">/**</span></div> <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="comment"> * atomically subtract 'val' from an apr_uint64_t</span></div> <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span><span class="comment"> * @param val amount to subtract</span></div> <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="comment"> */</span></div> <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gab9587444053ce84342c4d4b3fe3864a1"> 148</a></span>APR_DECLARE(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__atomic.html#gab9587444053ce84342c4d4b3fe3864a1">apr_atomic_sub64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem, apr_uint64_t val);</div> <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span><span class="comment"></span> </div> <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span><span class="comment">/**</span></div> <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="comment"> * atomically increment an apr_uint64_t by 1</span></div> <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span><span class="comment"> * @param mem pointer to the object</span></div> <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span><span class="comment"> * @return old value pointed to by mem</span></div> <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span><span class="comment"> */</span></div> <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga2d091caea5fe759a89c1ff8f9231060b"> 155</a></span>APR_DECLARE(apr_uint64_t) <a class="code hl_function" href="group__apr__atomic.html#ga2d091caea5fe759a89c1ff8f9231060b">apr_atomic_inc64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem);</div> <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span><span class="comment"></span> </div> <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span><span class="comment">/**</span></div> <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span><span class="comment"> * atomically decrement an apr_uint64_t by 1</span></div> <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span><span class="comment"> * @param mem pointer to the atomic value</span></div> <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span><span class="comment"> * @return zero if the value becomes zero on decrement, otherwise non-zero</span></div> <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span><span class="comment"> */</span></div> <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga2a813357a6b24c352a13ebbb666444f4"> 162</a></span>APR_DECLARE(<span class="keywordtype">int</span>) <a class="code hl_function" href="group__apr__atomic.html#ga2a813357a6b24c352a13ebbb666444f4">apr_atomic_dec64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem);</div> <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span><span class="comment"></span> </div> <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span><span class="comment">/**</span></div> <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span><span class="comment"> * compare an apr_uint64_t's value with 'cmp'.</span></div> <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span><span class="comment"> * If they are the same swap the value with 'with'</span></div> <div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span><span class="comment"> * @param mem pointer to the value</span></div> <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span><span class="comment"> * @param with what to swap it with</span></div> <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span><span class="comment"> * @param cmp the value to compare it to</span></div> <div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span><span class="comment"> * @return the old value of *mem</span></div> <div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span><span class="comment"> */</span></div> <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga0ee75db52d67c0035082162a78342448"> 172</a></span>APR_DECLARE(apr_uint64_t) <a class="code hl_function" href="group__apr__atomic.html#ga0ee75db52d67c0035082162a78342448">apr_atomic_cas64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem, apr_uint64_t with,</div> <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> apr_uint64_t cmp);</div> <div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span><span class="comment"></span> </div> <div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="comment">/**</span></div> <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span><span class="comment"> * exchange an apr_uint64_t's value with 'val'.</span></div> <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="comment"> * @param mem pointer to the value</span></div> <div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span><span class="comment"> * @param val what to swap it with</span></div> <div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="comment"> * @return the old value of *mem</span></div> <div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span><span class="comment"> */</span></div> <div class="line"><a id="l00181" name="l00181"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga4077bb0c735f1d72fd050163c6c39419"> 181</a></span>APR_DECLARE(apr_uint64_t) <a class="code hl_function" href="group__apr__atomic.html#ga4077bb0c735f1d72fd050163c6c39419">apr_atomic_xchg64</a>(<span class="keyword">volatile</span> apr_uint64_t *mem, apr_uint64_t val);</div> <div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span><span class="comment"></span> </div> <div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="comment">/**</span></div> <div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span><span class="comment"> * compare the pointer's value with cmp.</span></div> <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span><span class="comment"> * If they are the same swap the value with 'with'</span></div> <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span><span class="comment"> * @param mem pointer to the pointer</span></div> <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span><span class="comment"> * @param with what to swap it with</span></div> <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span><span class="comment"> * @param cmp the value to compare it to</span></div> <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span><span class="comment"> * @return the old value of the pointer</span></div> <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span><span class="comment"> */</span></div> <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#gaf756715eff35bd8b6665bc3f2a27fbd2"> 191</a></span>APR_DECLARE(<span class="keywordtype">void</span>*) <a class="code hl_function" href="group__apr__atomic.html#gaf756715eff35bd8b6665bc3f2a27fbd2">apr_atomic_casptr</a>(<span class="keyword">volatile</span> <span class="keywordtype">void</span> **mem, <span class="keywordtype">void</span> *with, <span class="keyword">const</span> <span class="keywordtype">void</span> *cmp);</div> <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span><span class="comment"></span> </div> <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span><span class="comment">/**</span></div> <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span><span class="comment"> * exchange a pair of pointer values</span></div> <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span><span class="comment"> * @param mem pointer to the pointer</span></div> <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span><span class="comment"> * @param with what to swap it with</span></div> <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span><span class="comment"> * @return the old value of the pointer</span></div> <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span><span class="comment"> */</span></div> <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"><a class="line" href="group__apr__atomic.html#ga952e9a57b5df8d79ed2295b6fdc2c43c"> 199</a></span>APR_DECLARE(<span class="keywordtype">void</span>*) <a class="code hl_function" href="group__apr__atomic.html#ga952e9a57b5df8d79ed2295b6fdc2c43c">apr_atomic_xchgptr</a>(<span class="keyword">volatile</span> <span class="keywordtype">void</span> **mem, <span class="keywordtype">void</span> *with);</div> <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span><span class="comment"></span> </div> <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span><span class="comment">/** @} */</span></div> <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div> <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span><span class="preprocessor">#ifdef __cplusplus</span></div> <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span>}</div> <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div> <div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span><span class="preprocessor">#endif </span><span class="comment">/* !APR_ATOMIC_H */</span><span class="preprocessor"></span></div> <div class="ttc" id="aapr__pools_8h_html"><div class="ttname"><a href="apr__pools_8h.html">apr_pools.h</a></div><div class="ttdoc">APR memory allocation.</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga0ee75db52d67c0035082162a78342448"><div class="ttname"><a href="group__apr__atomic.html#ga0ee75db52d67c0035082162a78342448">apr_atomic_cas64</a></div><div class="ttdeci">apr_uint64_t apr_atomic_cas64(volatile apr_uint64_t *mem, apr_uint64_t with, apr_uint64_t cmp)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga2a813357a6b24c352a13ebbb666444f4"><div class="ttname"><a href="group__apr__atomic.html#ga2a813357a6b24c352a13ebbb666444f4">apr_atomic_dec64</a></div><div class="ttdeci">int apr_atomic_dec64(volatile apr_uint64_t *mem)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga2d091caea5fe759a89c1ff8f9231060b"><div class="ttname"><a href="group__apr__atomic.html#ga2d091caea5fe759a89c1ff8f9231060b">apr_atomic_inc64</a></div><div class="ttdeci">apr_uint64_t apr_atomic_inc64(volatile apr_uint64_t *mem)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga3ef16e13b679710fafd5196713e17433"><div class="ttname"><a href="group__apr__atomic.html#ga3ef16e13b679710fafd5196713e17433">apr_atomic_add32</a></div><div class="ttdeci">apr_uint32_t apr_atomic_add32(volatile apr_uint32_t *mem, apr_uint32_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga4077bb0c735f1d72fd050163c6c39419"><div class="ttname"><a href="group__apr__atomic.html#ga4077bb0c735f1d72fd050163c6c39419">apr_atomic_xchg64</a></div><div class="ttdeci">apr_uint64_t apr_atomic_xchg64(volatile apr_uint64_t *mem, apr_uint64_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga4603396650e844bd987f01358ccb4df1"><div class="ttname"><a href="group__apr__atomic.html#ga4603396650e844bd987f01358ccb4df1">apr_atomic_sub32</a></div><div class="ttdeci">void apr_atomic_sub32(volatile apr_uint32_t *mem, apr_uint32_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga4af33da5aa6493ec321af14bedfc47a9"><div class="ttname"><a href="group__apr__atomic.html#ga4af33da5aa6493ec321af14bedfc47a9">apr_atomic_inc32</a></div><div class="ttdeci">apr_uint32_t apr_atomic_inc32(volatile apr_uint32_t *mem)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga50850e462d65e0409d5a93a6b4ec26c6"><div class="ttname"><a href="group__apr__atomic.html#ga50850e462d65e0409d5a93a6b4ec26c6">apr_atomic_xchg32</a></div><div class="ttdeci">apr_uint32_t apr_atomic_xchg32(volatile apr_uint32_t *mem, apr_uint32_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga7a8d16335fdcd27f2baca90df35ad300"><div class="ttname"><a href="group__apr__atomic.html#ga7a8d16335fdcd27f2baca90df35ad300">apr_atomic_dec32</a></div><div class="ttdeci">int apr_atomic_dec32(volatile apr_uint32_t *mem)</div></div> <div class="ttc" id="agroup__apr__atomic_html_ga952e9a57b5df8d79ed2295b6fdc2c43c"><div class="ttname"><a href="group__apr__atomic.html#ga952e9a57b5df8d79ed2295b6fdc2c43c">apr_atomic_xchgptr</a></div><div class="ttdeci">void * apr_atomic_xchgptr(volatile void **mem, void *with)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gaa89b4022de39ca4d1c2ae6715e888e97"><div class="ttname"><a href="group__apr__atomic.html#gaa89b4022de39ca4d1c2ae6715e888e97">apr_atomic_init</a></div><div class="ttdeci">apr_status_t apr_atomic_init(apr_pool_t *p)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gaabf8e658bc5c4c93c84520e7e021422e"><div class="ttname"><a href="group__apr__atomic.html#gaabf8e658bc5c4c93c84520e7e021422e">apr_atomic_read64</a></div><div class="ttdeci">apr_uint64_t apr_atomic_read64(volatile apr_uint64_t *mem)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gab9587444053ce84342c4d4b3fe3864a1"><div class="ttname"><a href="group__apr__atomic.html#gab9587444053ce84342c4d4b3fe3864a1">apr_atomic_sub64</a></div><div class="ttdeci">void apr_atomic_sub64(volatile apr_uint64_t *mem, apr_uint64_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gac689de9df18c093f66959227359328bb"><div class="ttname"><a href="group__apr__atomic.html#gac689de9df18c093f66959227359328bb">apr_atomic_set32</a></div><div class="ttdeci">void apr_atomic_set32(volatile apr_uint32_t *mem, apr_uint32_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gaca335823ac1ec13f60df3a848b393938"><div class="ttname"><a href="group__apr__atomic.html#gaca335823ac1ec13f60df3a848b393938">apr_atomic_set64</a></div><div class="ttdeci">void apr_atomic_set64(volatile apr_uint64_t *mem, apr_uint64_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gae45c529f14f8489102382bd3fd4cce22"><div class="ttname"><a href="group__apr__atomic.html#gae45c529f14f8489102382bd3fd4cce22">apr_atomic_cas32</a></div><div class="ttdeci">apr_uint32_t apr_atomic_cas32(volatile apr_uint32_t *mem, apr_uint32_t with, apr_uint32_t cmp)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gaf756715eff35bd8b6665bc3f2a27fbd2"><div class="ttname"><a href="group__apr__atomic.html#gaf756715eff35bd8b6665bc3f2a27fbd2">apr_atomic_casptr</a></div><div class="ttdeci">void * apr_atomic_casptr(volatile void **mem, void *with, const void *cmp)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gafb476ad399f33ed4858601bbaa8f4073"><div class="ttname"><a href="group__apr__atomic.html#gafb476ad399f33ed4858601bbaa8f4073">apr_atomic_add64</a></div><div class="ttdeci">apr_uint64_t apr_atomic_add64(volatile apr_uint64_t *mem, apr_uint64_t val)</div></div> <div class="ttc" id="agroup__apr__atomic_html_gafba4de90e113d26536cff48418689771"><div class="ttname"><a href="group__apr__atomic.html#gafba4de90e113d26536cff48418689771">apr_atomic_read32</a></div><div class="ttdeci">apr_uint32_t apr_atomic_read32(volatile apr_uint32_t *mem)</div></div> <div class="ttc" id="agroup__apr__errno_html_gaf76ee4543247e9fb3f3546203e590a6c"><div class="ttname"><a href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a></div><div class="ttdeci">int apr_status_t</div><div class="ttdef"><b>Definition:</b> apr_errno.h:44</div></div> <div class="ttc" id="agroup__apr__pools_html_gaf137f28edcf9a086cd6bc36c20d7cdfb"><div class="ttname"><a href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a></div><div class="ttdeci">struct apr_pool_t apr_pool_t</div><div class="ttdef"><b>Definition:</b> apr_pools.h:60</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.3 </small></address> </body> </html>