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 <span id="projectnumber">2.0</span>
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<div class="title">wait.h</div> </div>
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<a href="wait_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_WAIT_H</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define _UBIXOS_WAIT_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="keyword">struct </span><a class="code" href="structtaskStruct.html">taskStruct</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"><a class="line" href="structwait__queue.html"> 34</a></span> <span class="keyword">struct </span><a class="code" href="structwait__queue.html">wait_queue</a> {</div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="structwait__queue.html#ab3458ef46f6def5452a3cb2b5d98c810"> 35</a></span>  <span class="keyword">struct </span><a class="code" href="structtaskStruct.html">taskStruct</a> *<a class="code" href="structwait__queue.html#ab3458ef46f6def5452a3cb2b5d98c810">task</a>;</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="structwait__queue.html#ae62dfb80237a5758f1e7bb09f7aa6dd6"> 36</a></span>  <span class="keyword">struct </span><a class="code" href="structwait__queue.html">wait_queue</a> *<a class="code" href="structwait__queue.html#ae62dfb80237a5758f1e7bb09f7aa6dd6">next</a>;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> };</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="structsemaphore.html"> 39</a></span> <span class="keyword">struct </span><a class="code" href="structsemaphore.html">semaphore</a> {</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structsemaphore.html#a971a34bcf0213d0ed1f14b02ab30f1ec"> 40</a></span>  <span class="keywordtype">int</span> <a class="code" href="structsemaphore.html#a971a34bcf0213d0ed1f14b02ab30f1ec">sount</a>;</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structsemaphore.html#a5bbe81211b0e13800687ccd92de62567"> 41</a></span>  <span class="keyword">struct </span><a class="code" href="structwait__queue.html">wait_queue</a> *<a class="code" href="structsemaphore.html#a5bbe81211b0e13800687ccd92de62567">wait</a>;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> };</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="wait_8h.html#ac5d15f274bc9b1e96230f3d3c60fd1f8"> 44</a></span> <span class="preprocessor">#define sti() __asm__ __volatile__ ("sti": : :"memory")</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="wait_8h.html#a68c330e94fe121eba993e5a5973c3162"> 45</a></span> <span class="preprocessor">#define cli() __asm__ __volatile__ ("cli": : :"memory")</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="wait_8h.html#a6c92c29fa8e83ab85e05543010e10d7c"> 46</a></span> <span class="preprocessor">#define nop() __asm__ __volatile__ ("nop")</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="wait_8h.html#ac7e64316b066734a354807302475b188"> 48</a></span> <span class="preprocessor">#define save_flags(x) __asm__ __volatile__("pushfl ; popl %0":"=r" (x): </span><span class="comment">/* no input */</span><span class="preprocessor"> :"memory")</span></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="wait_8h.html#ad77066dbcd0c872533a318d386ece0ac"> 50</a></span> <span class="preprocessor">#define restore_flags(x) __asm__ __volatile__("pushl %0 ; popfl": </span><span class="comment">/* no output */</span><span class="preprocessor"> :"r" (x):"memory")</span></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> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="astructtaskStruct_html"><div class="ttname"><a href="structtaskStruct.html">taskStruct</a></div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00062">sched.h:62</a></div></div>
<div class="ttc" id="astructsemaphore_html_a5bbe81211b0e13800687ccd92de62567"><div class="ttname"><a href="structsemaphore.html#a5bbe81211b0e13800687ccd92de62567">semaphore::wait</a></div><div class="ttdeci">struct wait_queue * wait</div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00041">wait.h:41</a></div></div>
<div class="ttc" id="astructsemaphore_html"><div class="ttname"><a href="structsemaphore.html">semaphore</a></div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00039">wait.h:39</a></div></div>
<div class="ttc" id="astructwait__queue_html_ab3458ef46f6def5452a3cb2b5d98c810"><div class="ttname"><a href="structwait__queue.html#ab3458ef46f6def5452a3cb2b5d98c810">wait_queue::task</a></div><div class="ttdeci">struct taskStruct * task</div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00035">wait.h:35</a></div></div>
<div class="ttc" id="astructwait__queue_html_ae62dfb80237a5758f1e7bb09f7aa6dd6"><div class="ttname"><a href="structwait__queue.html#ae62dfb80237a5758f1e7bb09f7aa6dd6">wait_queue::next</a></div><div class="ttdeci">struct wait_queue * next</div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00036">wait.h:36</a></div></div>
<div class="ttc" id="astructsemaphore_html_a971a34bcf0213d0ed1f14b02ab30f1ec"><div class="ttname"><a href="structsemaphore.html#a971a34bcf0213d0ed1f14b02ab30f1ec">semaphore::sount</a></div><div class="ttdeci">int sount</div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00040">wait.h:40</a></div></div>
<div class="ttc" id="astructwait__queue_html"><div class="ttname"><a href="structwait__queue.html">wait_queue</a></div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00034">wait.h:34</a></div></div>
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