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<title>CanFestival: /home/epimerde/documents/tc11/CanFestival-3/src/timer.c File Reference</title>
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<li><a href="globals.html"><span>Globals</span></a></li>
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<h1>/home/epimerde/documents/tc11/CanFestival-3/src/timer.c File Reference</h1><code>#include <applicfg.h></code><br>
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<code>#include "timer.h"</code><br>
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Include dependency graph for timer.c:<p><center><img src="timer_8c__incl.png" border="0" usemap="#/home/epimerde/documents/tc11/CanFestival-3/src/timer.c_map" alt=""></center>
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<p>
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<a href="timer_8c-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td></td></tr>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(a, b) ((a<b)?a:b)</td></tr>
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<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">TIMER_HANDLE </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#11c2616d78f06ed9144ef662f757b128">SetAlarm</a> (CO_Data *d, UNS32 id, TimerCallback_t callback, TIMEVAL value, TIMEVAL period)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">TIMER_HANDLE </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#991b3cfaac2f201b14d5530f75985c21">DelAlarm</a> (TIMER_HANDLE handle)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#fa75192a3238525618f8cb83004930cc">TimeDispatch</a> ()</td></tr>
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<tr><td colspan="2"><br><h2>Variables</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">s_timer_entry </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a> [MAX_NB_TIMER] = {{TIMER_FREE, NULL, NULL, 0, 0, 0},}</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">TIMEVAL </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = TIMEVAL_MAX</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">TIMER_HANDLE </td><td class="memItemRight" valign="bottom"><a class="el" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> = -1</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
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<dl class="author" compact><dt><b>Author:</b></dt><dd>Edouard TISSERANT and Francis DUPIN </dd></dl>
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<dl class="date" compact><dt><b>Date:</b></dt><dd>Tue Jun 5 09:32:32 2007 </dd></dl>
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<p>
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Definition in file <a class="el" href="timer_8c-source.html">timer.c</a>.<hr><h2>Define Documentation</h2>
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<a class="anchor" name="8536312cebeeea3a23dc0027800122c9"></a><!-- doxytag: member="timer.c::min_val" ref="8536312cebeeea3a23dc0027800122c9" args="(a, b)" -->
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<td class="memname">#define min_val </td>
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<td>(</td>
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<td class="paramtype">a, <tr>
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<td></td>
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<td class="paramtype">b </td>
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<td class="paramname"> </td>
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<td> ) </td>
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<td width="100%"> ((a<b)?a:b)</td>
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Definition at line <a class="el" href="timer_8c-source.html#l00044">44</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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Referenced by <a class="el" href="timer_8c-source.html#l00131">TimeDispatch()</a>.
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<hr><h2>Function Documentation</h2>
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<a class="anchor" name="991b3cfaac2f201b14d5530f75985c21"></a><!-- doxytag: member="timer.c::DelAlarm" ref="991b3cfaac2f201b14d5530f75985c21" args="(TIMER_HANDLE handle)" -->
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<td class="memname">TIMER_HANDLE DelAlarm </td>
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<td>(</td>
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<td class="paramtype">TIMER_HANDLE </td>
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<td class="paramname"> <em>handle</em> </td>
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<td> ) </td>
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----- Use this to remove an alarm ----<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>handle</em> </td><td></td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
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Quick and dirty. system timer will continue to be trigged, but no action will be preformed.
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Definition at line <a class="el" href="timer_8c-source.html#l00112">112</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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<p>
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References <a class="el" href="timer_8c-source.html#l00042">last_timer_raw</a>, and <a class="el" href="timer_8c-source.html#l00039">timers</a>.
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<p>
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Referenced by <a class="el" href="lifegrd_8c-source.html#l00236">heartbeatStop()</a>, <a class="el" href="lifegrd_8c-source.html#l00081">proceedNODE_GUARD()</a>, <a class="el" href="lifegrd_8c-source.html#l00161">ProducerHearbeatAlarm()</a>, and <a class="el" href="sync_8c-source.html#l00105">stopSYNC()</a>.
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<a class="anchor" name="11c2616d78f06ed9144ef662f757b128"></a><!-- doxytag: member="timer.c::SetAlarm" ref="11c2616d78f06ed9144ef662f757b128" args="(CO_Data *d, UNS32 id, TimerCallback_t callback, TIMEVAL value, TIMEVAL period)" -->
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<td class="memname">TIMER_HANDLE SetAlarm </td>
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<td>(</td>
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<td class="paramtype">CO_Data * </td>
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<td class="paramname"> <em>d</em>, </td>
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<td></td>
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<td class="paramtype">UNS32 </td>
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<td class="paramname"> <em>id</em>, </td>
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<td></td>
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<td class="paramtype">TimerCallback_t </td>
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<td class="paramname"> <em>callback</em>, </td>
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<td></td>
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<td class="paramtype">TIMEVAL </td>
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<td class="paramname"> <em>value</em>, </td>
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<td class="paramtype">TIMEVAL </td>
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<td class="paramname"> <em>period</em></td><td> </td>
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<td>)</td>
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------- Use this to declare a new alarm ------<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>d</em> </td><td></td></tr>
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<tr><td valign="top"></td><td valign="top"><em>id</em> </td><td></td></tr>
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<tr><td valign="top"></td><td valign="top"><em>callback</em> </td><td></td></tr>
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<tr><td valign="top"></td><td valign="top"><em>value</em> </td><td></td></tr>
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<tr><td valign="top"></td><td valign="top"><em>period</em> </td><td></td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
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<p>
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in order to decide new timer setting we have to run over all timer rows<p>
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if something to store<p>
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and empty row<p>
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just store<p>
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if successfull<p>
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set next wakeup alarm if new entry is sooner than others, or if it is alone<p>
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printf("elapsed_time=%d real_timer_value=%d total_sleep_time=%d\n", elapsed_time, real_timer_value, total_sleep_time);<p>
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printf("SetAlarm() return %d\n", row_number);
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<p>
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Definition at line <a class="el" href="timer_8c-source.html#l00057">57</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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References <a class="el" href="timer_8c-source.html#l00042">last_timer_raw</a>, and <a class="el" href="timer_8c-source.html#l00039">timers</a>.
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Referenced by <a class="el" href="lifegrd_8c-source.html#l00206">heartbeatInit()</a>, <a class="el" href="lifegrd_8c-source.html#l00081">proceedNODE_GUARD()</a>, and <a class="el" href="sync_8c-source.html#l00080">startSYNC()</a>.
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<a class="anchor" name="fa75192a3238525618f8cb83004930cc"></a><!-- doxytag: member="timer.c::TimeDispatch" ref="fa75192a3238525618f8cb83004930cc" args="()" -->
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<td class="memname">void TimeDispatch </td>
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------ TimeDispatch is called on each timer expiration ----
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used to compute when should normaly occur next wakeup<p>
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First run : change timer state depending on time<p>
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Get time since timer signal<p>
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if row is active<p>
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to be trigged<p>
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if simply outdated<p>
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ask for trig<p>
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or period have expired<p>
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set val as interval, with overrun correction<p>
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Check if this new timer value is the soonest<p>
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Each armed timer value in decremented.<p>
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Check if this new timer value is the soonest<p>
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Remember how much time we should sleep.<p>
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Set timer to soonest occurence<p>
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Then trig them or not.<p>
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reset trig state (will be free if not periodic)<p>
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trig !
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Definition at line <a class="el" href="timer_8c-source.html#l00131">131</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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<p>
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References <a class="el" href="timer_8c-source.html#l00042">last_timer_raw</a>, <a class="el" href="timer_8c-source.html#l00044">min_val</a>, <a class="el" href="timer_8c-source.html#l00039">timers</a>, and <a class="el" href="timer_8c-source.html#l00041">total_sleep_time</a>.
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<hr><h2>Variable Documentation</h2>
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<a class="anchor" name="1dab7b9a29bdee8b1931f8ea90685c6f"></a><!-- doxytag: member="timer.c::last_timer_raw" ref="1dab7b9a29bdee8b1931f8ea90685c6f" args="" -->
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<td class="memname">TIMER_HANDLE <a class="el" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> = -1 </td>
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Definition at line <a class="el" href="timer_8c-source.html#l00042">42</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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Referenced by <a class="el" href="timer_8c-source.html#l00112">DelAlarm()</a>, <a class="el" href="timer_8c-source.html#l00057">SetAlarm()</a>, and <a class="el" href="timer_8c-source.html#l00131">TimeDispatch()</a>.
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<a class="anchor" name="a74e2cf2504bfd18b12f112c7aaad845"></a><!-- doxytag: member="timer.c::timers" ref="a74e2cf2504bfd18b12f112c7aaad845" args="[MAX_NB_TIMER]" -->
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<td class="memname">s_timer_entry <a class="el" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>[MAX_NB_TIMER] = {{TIMER_FREE, NULL, NULL, 0, 0, 0},} </td>
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Definition at line <a class="el" href="timer_8c-source.html#l00039">39</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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Referenced by <a class="el" href="timer_8c-source.html#l00112">DelAlarm()</a>, <a class="el" href="timer_8c-source.html#l00057">SetAlarm()</a>, and <a class="el" href="timer_8c-source.html#l00131">TimeDispatch()</a>.
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<a class="anchor" name="5e9651eed13d70bcce9bdf3489a72a3d"></a><!-- doxytag: member="timer.c::total_sleep_time" ref="5e9651eed13d70bcce9bdf3489a72a3d" args="" -->
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<td class="memname">TIMEVAL <a class="el" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = TIMEVAL_MAX </td>
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Definition at line <a class="el" href="timer_8c-source.html#l00041">41</a> of file <a class="el" href="timer_8c-source.html">timer.c</a>.
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Referenced by <a class="el" href="timer_8c-source.html#l00131">TimeDispatch()</a>.
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<hr size="1"><address style="align: right;"><small>Generated on Tue Jun 5 18:32:11 2007 for CanFestival by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.1 </small></address>
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