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<title>CanFestival: /home/epimerde/documents/tc11/CanFestival-3/src/timer.c Source File</title>
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<h1>/home/epimerde/documents/tc11/CanFestival-3/src/timer.c</h1><a href="timer_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment">This file is part of CanFestival, a library implementing CanOpen Stack. </span>
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<a name="l00003"></a>00003 <span class="comment"></span>
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<a name="l00004"></a>00004 <span class="comment">Copyright (C): Edouard TISSERANT and Francis DUPIN</span>
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<a name="l00005"></a>00005 <span class="comment"></span>
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<a name="l00006"></a>00006 <span class="comment">See COPYING file for copyrights details.</span>
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<a name="l00007"></a>00007 <span class="comment"></span>
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<a name="l00008"></a>00008 <span class="comment">This library is free software; you can redistribute it and/or</span>
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<a name="l00009"></a>00009 <span class="comment">modify it under the terms of the GNU Lesser General Public</span>
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<a name="l00010"></a>00010 <span class="comment">License as published by the Free Software Foundation; either</span>
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<a name="l00011"></a>00011 <span class="comment">version 2.1 of the License, or (at your option) any later version.</span>
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<a name="l00012"></a>00012 <span class="comment"></span>
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<a name="l00013"></a>00013 <span class="comment">This library is distributed in the hope that it will be useful,</span>
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<a name="l00014"></a>00014 <span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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<a name="l00015"></a>00015 <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
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<a name="l00016"></a>00016 <span class="comment">Lesser General Public License for more details.</span>
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<a name="l00017"></a>00017 <span class="comment"></span>
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<a name="l00018"></a>00018 <span class="comment">You should have received a copy of the GNU Lesser General Public</span>
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<a name="l00019"></a>00019 <span class="comment">License along with this library; if not, write to the Free Software</span>
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<a name="l00020"></a>00020 <span class="comment">Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
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<a name="l00021"></a>00021 <span class="comment">*/</span>
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<a name="l00032"></a>00032 <span class="comment">/* #define DEBUG_WAR_CONSOLE_ON */</span>
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<a name="l00033"></a>00033 <span class="comment">/* #define DEBUG_ERR_CONSOLE_ON */</span>
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<a name="l00034"></a>00034
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<a name="l00035"></a>00035 <span class="preprocessor">#include <applicfg.h></span>
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<a name="l00036"></a>00036 <span class="preprocessor">#include "timer.h"</span>
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<a name="l00037"></a>00037
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<a name="l00038"></a>00038 <span class="comment">/* --------- The timer table --------- */</span>
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<a name="l00039"></a><a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">00039</a> s_timer_entry <a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>[MAX_NB_TIMER] = {{TIMER_FREE, NULL, NULL, 0, 0, 0},};
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<a name="l00040"></a>00040
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<a name="l00041"></a><a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">00041</a> TIMEVAL <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = TIMEVAL_MAX;
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<a name="l00042"></a><a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">00042</a> TIMER_HANDLE <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> = -1;
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<a name="l00043"></a>00043
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<a name="l00044"></a><a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">00044</a> <span class="preprocessor">#define min_val(a,b) ((a<b)?a:b)</span>
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<a name="l00045"></a>00045 <span class="preprocessor"></span>
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<a name="l00057"></a><a class="code" href="timer_8c.html#11c2616d78f06ed9144ef662f757b128">00057</a> TIMER_HANDLE <a class="code" href="timer_8c.html#11c2616d78f06ed9144ef662f757b128">SetAlarm</a>(CO_Data* d, UNS32 <span class="keywordtype">id</span>, TimerCallback_t callback, TIMEVAL value, TIMEVAL period)
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<a name="l00058"></a>00058 {
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<a name="l00059"></a>00059 <span class="comment">/*printf("SetAlarm(UNS32 id=%d, TimerCallback_t callback=%x, TIMEVAL value=%d, TIMEVAL period=%d)\n", id, callback, value, period); */</span>
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<a name="l00060"></a>00060 TIMER_HANDLE i;
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<a name="l00061"></a>00061 TIMER_HANDLE row_number = TIMER_NONE;
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<a name="l00062"></a>00062
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<a name="l00064"></a>00064 <span class="keywordflow">for</span>(i=0; i <= <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> + 1 && i < MAX_NB_TIMER; i++)
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<a name="l00065"></a>00065 {
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<a name="l00066"></a>00066 s_timer_entry *row = (<a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>+i);
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<a name="l00067"></a>00067
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<a name="l00068"></a>00068 <span class="keywordflow">if</span> (callback &&
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<a name="l00069"></a>00069 row->state == TIMER_FREE)
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<a name="l00070"></a>00070 {
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<a name="l00071"></a>00071 row->callback = callback;
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<a name="l00072"></a>00072 row->d = d;
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<a name="l00073"></a>00073 row->id = <span class="keywordtype">id</span>;
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<a name="l00074"></a>00074 row->val = value;
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<a name="l00075"></a>00075 row->interval = period;
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<a name="l00076"></a>00076 row->state = TIMER_ARMED;
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<a name="l00077"></a>00077 row_number = i;
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<a name="l00078"></a>00078 <span class="keywordflow">break</span>;
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<a name="l00079"></a>00079 }
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<a name="l00080"></a>00080 }
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<a name="l00081"></a>00081
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<a name="l00082"></a>00082 <span class="keywordflow">if</span> (row_number != TIMER_NONE)
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<a name="l00083"></a>00083 {
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<a name="l00084"></a>00084 TIMEVAL real_timer_value;
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<a name="l00085"></a>00085 TIMEVAL elapsed_time;
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087 <span class="keywordflow">if</span> (row_number == <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> + 1) <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>++;
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<a name="l00088"></a>00088
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<a name="l00090"></a>00090 real_timer_value = <a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(value, TIMEVAL_MAX);
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<a name="l00091"></a>00091 elapsed_time = getElapsedTime();
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<a name="l00092"></a>00092
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<a name="l00094"></a>00094 <span class="keywordflow">if</span> (<a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> > elapsed_time && <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> - elapsed_time > real_timer_value)
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<a name="l00095"></a>00095 {
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<a name="l00096"></a>00096 <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = elapsed_time + real_timer_value;
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<a name="l00097"></a>00097 setTimer(real_timer_value);
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<a name="l00098"></a>00098 }
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<a name="l00100"></a>00100 <span class="keywordflow">return</span> row_number;
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<a name="l00101"></a>00101 }
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<a name="l00102"></a>00102 <span class="keywordflow">return</span> TIMER_NONE;
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<a name="l00103"></a>00103 }
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<a name="l00104"></a>00104
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<a name="l00112"></a><a class="code" href="timer_8c.html#991b3cfaac2f201b14d5530f75985c21">00112</a> TIMER_HANDLE <a class="code" href="timer_8c.html#991b3cfaac2f201b14d5530f75985c21">DelAlarm</a>(TIMER_HANDLE handle)
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<a name="l00113"></a>00113 {
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99 |
<a name="l00115"></a>00115 MSG_WAR(0x3320, <span class="stringliteral">"DelAlarm. handle = "</span>, handle);
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<a name="l00116"></a>00116 <span class="keywordflow">if</span>(handle != TIMER_NONE)
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<a name="l00117"></a>00117 {
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<a name="l00118"></a>00118 <span class="keywordflow">if</span>(handle == <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>)
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<a name="l00119"></a>00119 <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>--;
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<a name="l00120"></a>00120 <a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>[handle].state = TIMER_FREE;
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<a name="l00121"></a>00121 }
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<a name="l00122"></a>00122 <span class="keywordflow">else</span> {
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<a name="l00123"></a>00123 }
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<a name="l00124"></a>00124 <span class="keywordflow">return</span> TIMER_NONE;
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<a name="l00125"></a>00125 }
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<a name="l00126"></a>00126
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<a name="l00131"></a><a class="code" href="timer_8c.html#fa75192a3238525618f8cb83004930cc">00131</a> <span class="keywordtype">void</span> <a class="code" href="timer_8c.html#fa75192a3238525618f8cb83004930cc">TimeDispatch</a>()
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<a name="l00132"></a>00132 {
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<a name="l00133"></a>00133 TIMER_HANDLE i;
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<a name="l00134"></a>00134 TIMEVAL next_wakeup = TIMEVAL_MAX;
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<a name="l00137"></a>00137 TIMEVAL overrun = getElapsedTime();
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<a name="l00138"></a>00138
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<a name="l00139"></a>00139 TIMEVAL real_total_sleep_time = <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> + overrun;
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<a name="l00140"></a>00140 <span class="comment">/*printf("total_sleep_time %d + overrun %d\n", total_sleep_time , overrun); */</span>
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<a name="l00141"></a>00141
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<a name="l00142"></a>00142 <span class="keywordflow">for</span>(i=0; i <= <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>; i++)
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<a name="l00143"></a>00143 {
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<a name="l00144"></a>00144 s_timer_entry *row = (<a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>+i);
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<a name="l00145"></a>00145
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<a name="l00146"></a>00146 <span class="keywordflow">if</span> (row->state & TIMER_ARMED)
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<a name="l00147"></a>00147 {
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<a name="l00148"></a>00148 if (row->val <= real_total_sleep_time)
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<a name="l00149"></a>00149 {
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<a name="l00150"></a>00150 <span class="comment">/*printf("row->val(%d) <= (%d)real_total_sleep_time\n", row->val, real_total_sleep_time); */</span>
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<a name="l00151"></a>00151 if (!row->interval)
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<a name="l00152"></a>00152 {
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<a name="l00153"></a>00153 row->state = TIMER_TRIG;
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<a name="l00154"></a>00154 }
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<a name="l00155"></a>00155 <span class="keywordflow">else</span>
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<a name="l00156"></a>00156 {
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<a name="l00158"></a>00158 row->val = row->interval - (overrun % row->interval);
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<a name="l00159"></a>00159 row->state = TIMER_TRIG_PERIOD; <span class="comment">/* ask for trig, periodic */</span>
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137 |
<a name="l00161"></a>00161 next_wakeup = <a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(row->val,next_wakeup);
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<a name="l00162"></a>00162 }
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139 |
<a name="l00163"></a>00163 }
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<a name="l00164"></a>00164 <span class="keywordflow">else</span>
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141 |
<a name="l00165"></a>00165 {
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142 |
<a name="l00167"></a>00167 row->val -= real_total_sleep_time;
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143 |
<a name="l00168"></a>00168
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144 |
<a name="l00170"></a>00170 next_wakeup = <a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(row->val,next_wakeup);
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145 |
<a name="l00171"></a>00171 }
|
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146 |
<a name="l00172"></a>00172 }
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147 |
<a name="l00173"></a>00173 }
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148 |
<a name="l00174"></a>00174
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149 |
<a name="l00176"></a>00176 <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = next_wakeup;
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150 |
<a name="l00177"></a>00177
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151 |
<a name="l00179"></a>00179 setTimer(next_wakeup);
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152 |
<a name="l00180"></a>00180
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153 |
<a name="l00182"></a>00182 <span class="keywordflow">for</span>(i=0; i<=<a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>; i++)
|
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154 |
<a name="l00183"></a>00183 {
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155 |
<a name="l00184"></a>00184 s_timer_entry *row = (<a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>+i);
|
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156 |
<a name="l00185"></a>00185
|
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157 |
<a name="l00186"></a>00186 <span class="keywordflow">if</span> (row->state & TIMER_TRIG)
|
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158 |
<a name="l00187"></a>00187 {
|
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159 |
<a name="l00188"></a>00188 row->state &= ~TIMER_TRIG;
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160 |
<a name="l00189"></a>00189 <span class="keywordflow">if</span>(row->callback)
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161 |
<a name="l00190"></a>00190 (*row->callback)(row->d, row->id);
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162 |
<a name="l00191"></a>00191 }
|
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163 |
<a name="l00192"></a>00192 }
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164 |
<a name="l00193"></a>00193 }
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<a name="l00194"></a>00194
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166 |
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Jun 5 18:32:05 2007 for CanFestival by
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.1 </small></address>
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</body>
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</html>
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