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<li class="navelem"><a class="el" href="dir_6560186179ae86ab3fbed805e7cb86e4.html">libusb</a></li><li class="navelem"><a class="el" href="dir_3c244064118e8ab8a3edc4a32285258d.html">os</a></li> </ul>
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<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"> * libusb event abstraction on POSIX platforms</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"> * Copyright © 2020 Chris Dickens <[email protected]></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"> * This library is free software; you can redistribute it and/or</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</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"> * This library is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * Lesser General Public License for more details.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * License along with this library; if not, write to the Free Software</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> */</span></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="preprocessor">#ifndef LIBUSB_EVENTS_POSIX_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#define LIBUSB_EVENTS_POSIX_H</span></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> <span class="preprocessor">#include <poll.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">typedef</span> <span class="keywordtype">int</span> usbi_os_handle_t;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#define USBI_OS_HANDLE_FORMAT_STRING "fd %d"</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">#ifdef HAVE_EVENTFD</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structusbi__event.html">usbi_event</a> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordtype">int</span> eventfd;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> } <a class="code" href="structusbi__event.html">usbi_event_t</a>;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#define USBI_EVENT_OS_HANDLE(e) ((e)->eventfd)</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define USBI_EVENT_POLL_EVENTS POLLIN</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#define USBI_INVALID_EVENT { -1 }</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="structusbi__event.html"> 37</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structusbi__event.html">usbi_event</a> {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">int</span> pipefd[2];</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> } <a class="code" href="structusbi__event.html">usbi_event_t</a>;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#define USBI_EVENT_OS_HANDLE(e) ((e)->pipefd[0])</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#define USBI_EVENT_POLL_EVENTS POLLIN</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#define USBI_INVALID_EVENT { { -1, -1 } }</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#ifdef HAVE_TIMERFD</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#define HAVE_OS_TIMER 1</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structusbi__timer.html">usbi_timer</a> {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">int</span> timerfd;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> } <a class="code" href="structusbi__timer.html">usbi_timer_t</a>;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#define USBI_TIMER_OS_HANDLE(t) ((t)->timerfd)</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#define USBI_TIMER_POLL_EVENTS POLLIN</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> usbi_timer_valid(<a class="code" href="structusbi__timer.html">usbi_timer_t</a> *timer)</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span> timer->timerfd >= 0;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structusbi__timer_html"><div class="ttname"><a href="structusbi__timer.html">usbi_timer</a></div><div class="ttdef"><b>Definition:</b> events_windows.h:35</div></div>
<div class="ttc" id="structusbi__event_html"><div class="ttname"><a href="structusbi__event.html">usbi_event</a></div><div class="ttdef"><b>Definition:</b> events_posix.h:37</div></div>
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