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<div class="title">sys.c</div> </div>
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<a href="../../d8/d91/sys_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</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"> * Copyright (c) 2001-2004 Swedish Institute of Computer Science.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * 3. The name of the author may not be used to endorse or promote products</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * Author: Adam Dunkels <adam@sics.se></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#include "<a class="code" href="../../dc/dba/opt_8h.html">net/opt.h</a>"</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d87/sys_8h.html">net/sys.h</a>"</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">/* Most of the functions defined in sys.h must be implemented in the</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * architecture-dependent file sys_arch.c */</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#if !NO_SYS</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#ifndef sys_msleep</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="../../d1/d84/group__sys__misc.html#ga6b8786f43e779953e8b74e983c88682e"> 93</a></span> <a class="code" href="../../d1/d84/group__sys__misc.html#ga6b8786f43e779953e8b74e983c88682e">sys_msleep</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> ms)</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (ms > 0) {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="../../d4/da3/structsys__sem.html">sys_sem_t</a> delaysem;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> err = <a class="code" href="../../da/d3a/group__sys__sem.html#gadb68acad14b34550b9891bc11bbf4e63">sys_sem_new</a>(&delaysem, 0);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> (err == <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="../../da/d3a/group__sys__sem.html#ga28aa725e8a36dd0cfde89875af4f3ec9">sys_arch_sem_wait</a>(&delaysem, ms);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="../../da/d3a/group__sys__sem.html#ga4d02e29e5dfa092559efc04dee985822">sys_sem_free</a>(&delaysem);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#endif </span><span class="comment">/* sys_msleep */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#endif </span><span class="comment">/* !NO_SYS */</span><span class="preprocessor"></span></div>
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<div class="ttc" id="asys_8h_html"><div class="ttname"><a href="../../d9/d87/sys_8h.html">sys.h</a></div></div>
<div class="ttc" id="aopt_8h_html"><div class="ttname"><a href="../../dc/dba/opt_8h.html">opt.h</a></div></div>
<div class="ttc" id="agroup__sys__sem_html_gadb68acad14b34550b9891bc11bbf4e63"><div class="ttname"><a href="../../da/d3a/group__sys__sem.html#gadb68acad14b34550b9891bc11bbf4e63">sys_sem_new</a></div><div class="ttdeci">err_t sys_sem_new(sys_sem_t **sem, u8_t count)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d56/sys__arch_8c_source.html#l00052">sys_arch.c:52</a></div></div>
<div class="ttc" id="agroup__sys__sem_html_ga4d02e29e5dfa092559efc04dee985822"><div class="ttname"><a href="../../da/d3a/group__sys__sem.html#ga4d02e29e5dfa092559efc04dee985822">sys_sem_free</a></div><div class="ttdeci">void sys_sem_free(sys_sem_t **sem)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d56/sys__arch_8c_source.html#l00075">sys_arch.c:75</a></div></div>
<div class="ttc" id="agroup__sys__sem_html_ga28aa725e8a36dd0cfde89875af4f3ec9"><div class="ttname"><a href="../../da/d3a/group__sys__sem.html#ga28aa725e8a36dd0cfde89875af4f3ec9">sys_arch_sem_wait</a></div><div class="ttdeci">uint32_t sys_arch_sem_wait(struct sys_sem **s, uint32_t timeout)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d56/sys__arch_8c_source.html#l00104">sys_arch.c:104</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4c14294869aceba3ef9d4c0c302d0f33"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a></div><div class="ttdeci">uint32_t u32_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00126">arch.h:126</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="agroup__sys__misc_html_ga6b8786f43e779953e8b74e983c88682e"><div class="ttname"><a href="../../d1/d84/group__sys__misc.html#ga6b8786f43e779953e8b74e983c88682e">sys_msleep</a></div><div class="ttdeci">void sys_msleep(u32_t ms)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d91/sys_8c_source.html#l00093">sys.c:93</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb"><div class="ttname"><a href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d40/err_8h_source.html#l00063">err.h:63</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_gaf02d9da80fd66b4f986d2c53d7231ddb"><div class="ttname"><a href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div><div class="ttdeci">s8_t err_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d40/err_8h_source.html#l00057">err.h:57</a></div></div>
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