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106 <a href="#nested-classes">Data Structures</a> |
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108 <a href="#func-members">Functions</a> </div>
109 <div class="headertitle"><div class="title">sem.h File Reference</div></div>
111 <div class="contents">
112 <div class="textblock"><code>#include "<a class="el" href="lock__core_8h_source.html">pico/lock_core.h</a>"</code><br />
113 </div><div class="textblock"><div class="dynheader">
114 Include dependency graph for sem.h:</div>
115 <div class="dyncontent">
116 <div class="center"><img src="sem_8h__incl.png" border="0" usemap="#ainclude_2pico_2sem_8h" alt=""/></div>
117 <map name="ainclude_2pico_2sem_8h" id="ainclude_2pico_2sem_8h">
118 <area shape="rect" title=" " alt="" coords="367,5,511,32"/>
119 <area shape="rect" href="lock__core_8h.html" title=" " alt="" coords="376,80,503,107"/>
120 <area shape="rect" href="pico_8h.html" title=" " alt="" coords="409,319,470,345"/>
121 <area shape="rect" href="common_2pico__time_2include_2pico_2time_8h.html" title=" " alt="" coords="307,155,401,181"/>
122 <area shape="rect" href="rp2__common_2hardware__sync_2include_2hardware_2sync_8h.html" title=" " alt="" coords="537,155,667,181"/>
123 <area shape="rect" href="common_2pico__base__headers_2include_2pico_2types_8h_source.html" title=" " alt="" coords="589,543,690,569"/>
124 <area shape="rect" title=" " alt="" coords="235,393,348,420"/>
125 <area shape="rect" href="common_2pico__base__headers_2include_2pico_2config_8h_source.html" title=" " alt="" coords="439,393,543,420"/>
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146 </div><div class="textblock"><div class="dynheader">
147 This graph shows which files directly or indirectly include this file:</div>
148 <div class="dyncontent">
149 <div class="center"><img src="sem_8h__dep__incl.png" border="0" usemap="#ainclude_2pico_2sem_8hdep" alt=""/></div>
150 <map name="ainclude_2pico_2sem_8hdep" id="ainclude_2pico_2sem_8hdep">
151 <area shape="rect" title=" " alt="" coords="178,5,322,32"/>
152 <area shape="rect" href="async__context__poll_8h_source.html" title=" " alt="" coords="5,87,148,129"/>
153 <area shape="rect" href="async__context__threadsafe__background_8h_source.html" title=" " alt="" coords="173,80,327,136"/>
154 <area shape="rect" href="common_2pico__sync_2include_2pico_2sync_8h.html" title=" " alt="" coords="351,95,498,121"/>
155 <area shape="rect" href="multicore_8h.html" title=" " alt="" coords="335,184,514,211"/>
159 <p><a href="sem_8h_source.html">Go to the source code of this file.</a></p>
160 <table class="memberdecls">
161 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
162 Data Structures</h2></td></tr>
163 <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structsemaphore.html">semaphore</a></td></tr>
164 <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
165 </table><table class="memberdecls">
166 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
167 Typedefs</h2></td></tr>
168 <tr class="memitem:a7faa1c561b3d822cda7bb84f27ee9448"><td class="memItemLeft" align="right" valign="top"><a id="a7faa1c561b3d822cda7bb84f27ee9448" name="a7faa1c561b3d822cda7bb84f27ee9448"></a>
169 typedef struct <a class="el" href="structsemaphore.html">semaphore</a> </td><td class="memItemRight" valign="bottom"><b>semaphore_t</b></td></tr>
170 <tr class="separator:a7faa1c561b3d822cda7bb84f27ee9448"><td class="memSeparator" colspan="2"> </td></tr>
171 </table><table class="memberdecls">
172 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
173 Functions</h2></td></tr>
174 <tr class="memitem:gab4e56b5ccfacafd2fb17765e702a21ba"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#gab4e56b5ccfacafd2fb17765e702a21ba">sem_init</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem, int16_t initial_permits, int16_t max_permits)</td></tr>
175 <tr class="memdesc:gab4e56b5ccfacafd2fb17765e702a21ba"><td class="mdescLeft"> </td><td class="mdescRight">Initialise a semaphore structure. <a href="group__sem.html#gab4e56b5ccfacafd2fb17765e702a21ba">More...</a><br /></td></tr>
176 <tr class="separator:gab4e56b5ccfacafd2fb17765e702a21ba"><td class="memSeparator" colspan="2"> </td></tr>
177 <tr class="memitem:gad9e065ef0c0e59309f9bdb5fb74bb7c1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#gad9e065ef0c0e59309f9bdb5fb74bb7c1">sem_available</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem)</td></tr>
178 <tr class="memdesc:gad9e065ef0c0e59309f9bdb5fb74bb7c1"><td class="mdescLeft"> </td><td class="mdescRight">Return number of available permits on the semaphore. <a href="group__sem.html#gad9e065ef0c0e59309f9bdb5fb74bb7c1">More...</a><br /></td></tr>
179 <tr class="separator:gad9e065ef0c0e59309f9bdb5fb74bb7c1"><td class="memSeparator" colspan="2"> </td></tr>
180 <tr class="memitem:gaeac89066f5fdbde0c7db2718464dcbde"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#gaeac89066f5fdbde0c7db2718464dcbde">sem_release</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem)</td></tr>
181 <tr class="memdesc:gaeac89066f5fdbde0c7db2718464dcbde"><td class="mdescLeft"> </td><td class="mdescRight">Release a permit on a semaphore. <a href="group__sem.html#gaeac89066f5fdbde0c7db2718464dcbde">More...</a><br /></td></tr>
182 <tr class="separator:gaeac89066f5fdbde0c7db2718464dcbde"><td class="memSeparator" colspan="2"> </td></tr>
183 <tr class="memitem:gab6c128952e4981a95ce2e2d093a8a3ba"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#gab6c128952e4981a95ce2e2d093a8a3ba">sem_reset</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem, int16_t permits)</td></tr>
184 <tr class="memdesc:gab6c128952e4981a95ce2e2d093a8a3ba"><td class="mdescLeft"> </td><td class="mdescRight">Reset semaphore to a specific number of available permits. <a href="group__sem.html#gab6c128952e4981a95ce2e2d093a8a3ba">More...</a><br /></td></tr>
185 <tr class="separator:gab6c128952e4981a95ce2e2d093a8a3ba"><td class="memSeparator" colspan="2"> </td></tr>
186 <tr class="memitem:gaefa22667355703497ae883f68a87aacf"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#gaefa22667355703497ae883f68a87aacf">sem_acquire_blocking</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem)</td></tr>
187 <tr class="memdesc:gaefa22667355703497ae883f68a87aacf"><td class="mdescLeft"> </td><td class="mdescRight">Acquire a permit from the semaphore. <a href="group__sem.html#gaefa22667355703497ae883f68a87aacf">More...</a><br /></td></tr>
188 <tr class="separator:gaefa22667355703497ae883f68a87aacf"><td class="memSeparator" colspan="2"> </td></tr>
189 <tr class="memitem:ga38275bfc4c00e5039028f58860709610"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#ga38275bfc4c00e5039028f58860709610">sem_acquire_timeout_ms</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem, uint32_t timeout_ms)</td></tr>
190 <tr class="memdesc:ga38275bfc4c00e5039028f58860709610"><td class="mdescLeft"> </td><td class="mdescRight">Acquire a permit from a semaphore, with timeout. <a href="group__sem.html#ga38275bfc4c00e5039028f58860709610">More...</a><br /></td></tr>
191 <tr class="separator:ga38275bfc4c00e5039028f58860709610"><td class="memSeparator" colspan="2"> </td></tr>
192 <tr class="memitem:ga0f5a509fb132e8e764795a66773500ad"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#ga0f5a509fb132e8e764795a66773500ad">sem_acquire_timeout_us</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem, uint32_t timeout_us)</td></tr>
193 <tr class="memdesc:ga0f5a509fb132e8e764795a66773500ad"><td class="mdescLeft"> </td><td class="mdescRight">Acquire a permit from a semaphore, with timeout. <a href="group__sem.html#ga0f5a509fb132e8e764795a66773500ad">More...</a><br /></td></tr>
194 <tr class="separator:ga0f5a509fb132e8e764795a66773500ad"><td class="memSeparator" colspan="2"> </td></tr>
195 <tr class="memitem:ga4410f17fc2f35b91e5bcfaf18bcf26ae"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#ga4410f17fc2f35b91e5bcfaf18bcf26ae">sem_acquire_block_until</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem, <a class="el" href="group__timestamp.html#ga8b7f3d602cc053f05bacceeacc257ed8">absolute_time_t</a> until)</td></tr>
196 <tr class="memdesc:ga4410f17fc2f35b91e5bcfaf18bcf26ae"><td class="mdescLeft"> </td><td class="mdescRight">Wait to acquire a permit from a semaphore until a specific time. <a href="group__sem.html#ga4410f17fc2f35b91e5bcfaf18bcf26ae">More...</a><br /></td></tr>
197 <tr class="separator:ga4410f17fc2f35b91e5bcfaf18bcf26ae"><td class="memSeparator" colspan="2"> </td></tr>
198 <tr class="memitem:ga25b473ab6f287e4a6a0c9d0288a0a497"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__sem.html#ga25b473ab6f287e4a6a0c9d0288a0a497">sem_try_acquire</a> (<a class="el" href="structsemaphore.html">semaphore_t</a> *sem)</td></tr>
199 <tr class="memdesc:ga25b473ab6f287e4a6a0c9d0288a0a497"><td class="mdescLeft"> </td><td class="mdescRight">Attempt to acquire a permit from a semaphore without blocking. <a href="group__sem.html#ga25b473ab6f287e4a6a0c9d0288a0a497">More...</a><br /></td></tr>
200 <tr class="separator:ga25b473ab6f287e4a6a0c9d0288a0a497"><td class="memSeparator" colspan="2"> </td></tr>
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