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<a href="../../d2/d28/sem_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"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</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> <span class="comment"> * This was developed by Christopher W. Olsen for the UbixOS Project.</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"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * provided that the following conditions are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1) Redistributions of source code must retain the above copyright notice, this list of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * conditions, the following disclaimer and the list of authors.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2) Redistributions in binary form must reproduce the above copyright notice, this list of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * conditions, the following disclaimer and the list of authors in the documentation and/or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * endorse or promote products derived from this software without specific prior written</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * permission.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</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> <span class="preprocessor">#ifndef _UBIXOS_SEM_H</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define _UBIXOS_SEM_H</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="../../d0/d27/include_2sys_2types_8h.html">sys/types.h</a>></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="../../db/d37/ubixos_2errno_8h.html">ubixos/errno.h</a>></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="../../dd/d1b/ubthread_8h.html">ubixos/ubthread.h</a>></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="../../d4/da3/structsys__sem.html"> 36</a></span> <span class="keyword">struct </span><a class="code" href="../../d4/da3/structsys__sem.html">sys_sem</a> {</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="../../d4/da3/structsys__sem.html#ab9e4ecb1c4448468fb820025b7c773be"> 37</a></span>  <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> <a class="code" href="../../d4/da3/structsys__sem.html#ab9e4ecb1c4448468fb820025b7c773be">signaled</a>;</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../d4/da3/structsys__sem.html#aa758e52262d23c22a40204e410b5f8c4"> 38</a></span>  <a class="code" href="../../df/d42/structubthread__cond.html">ubthread_cond_t</a> <a class="code" href="../../d4/da3/structsys__sem.html#aa758e52262d23c22a40204e410b5f8c4">cond</a>;</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="../../d4/da3/structsys__sem.html#a52b664ee7d03d9bc83f26009a5fd27f1"> 39</a></span>  <a class="code" href="../../d5/d73/structubthread__mutex.html">ubthread_mutex_t</a> <a class="code" href="../../d4/da3/structsys__sem.html#a52b664ee7d03d9bc83f26009a5fd27f1">mutex</a>;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> };</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../d2/d28/sem_8h.html#a900e36da93bb688c29fc8148f2f44e04"> 42</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="../../d4/da3/structsys__sem.html">sys_sem</a> <a class="code" href="../../d4/da3/structsys__sem.html">sys_sem_t</a>;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014"> 44</a></span> <span class="keyword">typedef</span> <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> <a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">struct </span><a class="code" href="../../da/d1c/structtimespec.html">timespec</a>;</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> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a31ab8f6dbb9646ed62f5e836b3639ad1">sem_close</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> <span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a81988406ac7a65ee7d6782b97943320e">sem_post</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> <span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#ac2e22218e6a5830f6bdfd727d0206798">sem_wait</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> <span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a46c76cc20324278bddf93b50c6f7ae9f">sem_trywait</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> <span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a225cd49daf55aa5df66d4382750abd41">sem_timedwait</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> <span class="keywordtype">id</span>, <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="../../da/d1c/structtimespec.html">timespec</a> *);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a741be298cbcc3eab1747e8b9b239d5f0">sem_init</a>(<a class="code" href="../../d4/da3/structsys__sem.html">sys_sem_t</a> **, <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a2aff71146ab4942b2b38860c749c4074">uint8_t</a>);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a15c1835612c234029c20431e06a1917d">sem_open</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> *<span class="keywordtype">id</span>, <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/de8/pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, <span class="keywordtype">int</span> oflag, <a class="code" href="../../d3/df4/descrip_8h.html#ae9f148ba55d84268ecb6f8031ab45076">mode_t</a> mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> value);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#a776256d1a473906f8b7490689bfcb75c">sem_unlink</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/de8/pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#ab80213da2384984db11eeae2c92f8a72">sem_getvalue</a>(<a class="code" href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a> <span class="keywordtype">id</span>, <span class="keywordtype">int</span> *val);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keywordtype">int</span> <a class="code" href="../../d2/d28/sem_8h.html#adcce987e1dbe6b3740a4b8f1a49c680f">sem_destroy</a>(<a class="code" href="../../d4/da3/structsys__sem.html">sys_sem_t</a> **);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#endif </span><span class="comment">/* END _UBIXOS_SEM_H */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="astructubthread__mutex_html"><div class="ttname"><a href="../../d5/d73/structubthread__mutex.html">ubthread_mutex</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d1b/ubthread_8h_source.html#l00052">ubthread.h:52</a></div></div>
<div class="ttc" id="asem_8h_html_ac2e22218e6a5830f6bdfd727d0206798"><div class="ttname"><a href="../../d2/d28/sem_8h.html#ac2e22218e6a5830f6bdfd727d0206798">sem_wait</a></div><div class="ttdeci">int sem_wait(semID_t id)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00044">sem.c:44</a></div></div>
<div class="ttc" id="astructsys__sem_html_a52b664ee7d03d9bc83f26009a5fd27f1"><div class="ttname"><a href="../../d4/da3/structsys__sem.html#a52b664ee7d03d9bc83f26009a5fd27f1">sys_sem::mutex</a></div><div class="ttdeci">ubthread_mutex_t mutex</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d28/sem_8h_source.html#l00039">sem.h:39</a></div></div>
<div class="ttc" id="asem_8h_html_adcce987e1dbe6b3740a4b8f1a49c680f"><div class="ttname"><a href="../../d2/d28/sem_8h.html#adcce987e1dbe6b3740a4b8f1a49c680f">sem_destroy</a></div><div class="ttdeci">int sem_destroy(sys_sem_t **)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00087">sem.c:87</a></div></div>
<div class="ttc" id="asem_8h_html_a225cd49daf55aa5df66d4382750abd41"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a225cd49daf55aa5df66d4382750abd41">sem_timedwait</a></div><div class="ttdeci">int sem_timedwait(semID_t id, const struct timespec *)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00052">sem.c:52</a></div></div>
<div class="ttc" id="astructsys__sem_html_ab9e4ecb1c4448468fb820025b7c773be"><div class="ttname"><a href="../../d4/da3/structsys__sem.html#ab9e4ecb1c4448468fb820025b7c773be">sys_sem::signaled</a></div><div class="ttdeci">uint32_t signaled</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d28/sem_8h_source.html#l00037">sem.h:37</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html"><div class="ttname"><a href="../../d0/d27/include_2sys_2types_8h.html">types.h</a></div></div>
<div class="ttc" id="astructsys__sem_html"><div class="ttname"><a href="../../d4/da3/structsys__sem.html">sys_sem</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d28/sem_8h_source.html#l00036">sem.h:36</a></div></div>
<div class="ttc" id="asem_8h_html_a741be298cbcc3eab1747e8b9b239d5f0"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a741be298cbcc3eab1747e8b9b239d5f0">sem_init</a></div><div class="ttdeci">int sem_init(sys_sem_t **, uint8_t)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00056">sem.c:56</a></div></div>
<div class="ttc" id="asem_8h_html_a81988406ac7a65ee7d6782b97943320e"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a81988406ac7a65ee7d6782b97943320e">sem_post</a></div><div class="ttdeci">int sem_post(semID_t id)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00040">sem.c:40</a></div></div>
<div class="ttc" id="adescrip_8h_html_ae9f148ba55d84268ecb6f8031ab45076"><div class="ttname"><a href="../../d3/df4/descrip_8h.html#ae9f148ba55d84268ecb6f8031ab45076">mode_t</a></div><div class="ttdeci">__mode_t mode_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/df4/descrip_8h_source.html#l00044">descrip.h:44</a></div></div>
<div class="ttc" id="asem_8h_html_a31ab8f6dbb9646ed62f5e836b3639ad1"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a31ab8f6dbb9646ed62f5e836b3639ad1">sem_close</a></div><div class="ttdeci">int sem_close(semID_t id)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00036">sem.c:36</a></div></div>
<div class="ttc" id="asem_8h_html_a46c76cc20324278bddf93b50c6f7ae9f"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a46c76cc20324278bddf93b50c6f7ae9f">sem_trywait</a></div><div class="ttdeci">int sem_trywait(semID_t id)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00048">sem.c:48</a></div></div>
<div class="ttc" id="aubthread_8h_html"><div class="ttname"><a href="../../dd/d1b/ubthread_8h.html">ubthread.h</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_a0238af00180b6d9278fa1c6aa790fdf4"><div class="ttname"><a href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a></div><div class="ttdeci">__uint32_t uint32_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d27/include_2sys_2types_8h_source.html#l00046">types.h:46</a></div></div>
<div class="ttc" id="astructsys__sem_html_aa758e52262d23c22a40204e410b5f8c4"><div class="ttname"><a href="../../d4/da3/structsys__sem.html#aa758e52262d23c22a40204e410b5f8c4">sys_sem::cond</a></div><div class="ttdeci">ubthread_cond_t cond</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d28/sem_8h_source.html#l00038">sem.h:38</a></div></div>
<div class="ttc" id="asem_8h_html_a15c1835612c234029c20431e06a1917d"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a15c1835612c234029c20431e06a1917d">sem_open</a></div><div class="ttdeci">int sem_open(semID_t *id, const char *name, int oflag, mode_t mode, unsigned int value)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00075">sem.c:75</a></div></div>
<div class="ttc" id="apci_8c_html_a8f8f80d37794cde9472343e4487ba3eb"><div class="ttname"><a href="../../d1/de8/pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a></div><div class="ttdeci">const char * name</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/de8/pci_8c_source.html#l00037">pci.c:37</a></div></div>
<div class="ttc" id="asem_8h_html_ab80213da2384984db11eeae2c92f8a72"><div class="ttname"><a href="../../d2/d28/sem_8h.html#ab80213da2384984db11eeae2c92f8a72">sem_getvalue</a></div><div class="ttdeci">int sem_getvalue(semID_t id, int *val)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00083">sem.c:83</a></div></div>
<div class="ttc" id="astructubthread__cond_html"><div class="ttname"><a href="../../df/d42/structubthread__cond.html">ubthread_cond</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d1b/ubthread_8h_source.html#l00047">ubthread.h:47</a></div></div>
<div class="ttc" id="asem_8h_html_a776256d1a473906f8b7490689bfcb75c"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a776256d1a473906f8b7490689bfcb75c">sem_unlink</a></div><div class="ttdeci">int sem_unlink(const char *name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d0b/sem_8c_source.html#l00079">sem.c:79</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_a2aff71146ab4942b2b38860c749c4074"><div class="ttname"><a href="../../d0/d27/include_2sys_2types_8h.html#a2aff71146ab4942b2b38860c749c4074">uint8_t</a></div><div class="ttdeci">__uint8_t uint8_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d27/include_2sys_2types_8h_source.html#l00044">types.h:44</a></div></div>
<div class="ttc" id="astructtimespec_html"><div class="ttname"><a href="../../da/d1c/structtimespec.html">timespec</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d30/__timespec_8h_source.html#l00011">_timespec.h:11</a></div></div>
<div class="ttc" id="aubixos_2errno_8h_html"><div class="ttname"><a href="../../db/d37/ubixos_2errno_8h.html">errno.h</a></div></div>
<div class="ttc" id="asem_8h_html_a9f436a6cc8070df1db63f5a75d4d0014"><div class="ttname"><a href="../../d2/d28/sem_8h.html#a9f436a6cc8070df1db63f5a75d4d0014">semID_t</a></div><div class="ttdeci">uint32_t semID_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d28/sem_8h_source.html#l00044">sem.h:44</a></div></div>
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