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<h1>include/native/timer.h</h1><a href="include_2native_2timer_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef _XENO_TIMER_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define _XENO_TIMER_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;native/types.h&gt;</span>
<a name="l00026"></a>00026 
<a name="l00027"></a>00027 <span class="preprocessor">#define TM_ONESHOT XN_APERIODIC_TICK</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span>
<a name="l00029"></a>00029 <span class="keyword">typedef</span> <span class="keyword">struct </span>rt_timer_info {
<a name="l00030"></a>00030 
<a name="l00031"></a>00031     RTIME period;       <span class="comment">/* !&lt; Current status (unset, aperiodic, period). */</span>
<a name="l00032"></a>00032     RTIME date;         <span class="comment">/* !&lt; Current wallclock time. */</span>
<a name="l00033"></a>00033     RTIME tsc;          <span class="comment">/* !&lt; Current tsc count. */</span>
<a name="l00034"></a>00034 
<a name="l00035"></a>00035 } RT_TIMER_INFO;
<a name="l00036"></a>00036 
<a name="l00037"></a>00037 <span class="preprocessor">#if defined(__KERNEL__) || defined(__XENO_SIM__)</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span>
<a name="l00039"></a>00039 <span class="preprocessor">#include &lt;nucleus/timer.h&gt;</span>
<a name="l00040"></a>00040 
<a name="l00041"></a>00041 <span class="keyword">extern</span> xntbase_t *__native_tbase;
<a name="l00042"></a>00042 
<a name="l00043"></a>00043 <span class="preprocessor">#endif </span><span class="comment">/* __KERNEL__ || __XENO_SIM__ */</span>
<a name="l00044"></a>00044 
<a name="l00045"></a>00045 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00047"></a>00047 <span class="preprocessor">#endif</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span>
<a name="l00049"></a>00049 <span class="preprocessor">#if (defined(__KERNEL__)  || defined(__XENO_SIM__)) &amp;&amp; !defined(DOXYGEN_CPP)</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">inline</span> SRTIME <a class="code" href="include_2native_2timer_8h.html#67fb7c8759946b77e0bee05dfe7b7181" title="Convert nanoseconds to local CPU clock ticks.">rt_timer_ns2tsc</a>(SRTIME ns)
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052         <span class="keywordflow">return</span> xnarch_ns_to_tsc(ns);
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054 
<a name="l00055"></a>00055 <span class="keyword">static</span> <span class="keyword">inline</span> SRTIME <a class="code" href="include_2native_2timer_8h.html#493cc6fd8d90059a21f6f8249546b541" title="Convert local CPU clock ticks to nanoseconds.">rt_timer_tsc2ns</a>(SRTIME ticks)
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057         <span class="keywordflow">return</span> xnarch_tsc_to_ns(ticks);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 
<a name="l00060"></a>00060 <span class="keyword">static</span> <span class="keyword">inline</span> RTIME <a class="code" href="include_2native_2timer_8h.html#a589af3dafaeaa5dcbf2ef7b6dde6af8" title="Return the current TSC value.">rt_timer_tsc</a>(<span class="keywordtype">void</span>)
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062         <span class="keywordflow">return</span> xnarch_get_cpu_tsc();
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064 
<a name="l00065"></a>00065 <span class="keyword">static</span> <span class="keyword">inline</span> RTIME <a class="code" href="include_2native_2timer_8h.html#9665d6947e29d1a19dafb5401b0f6285" title="Return the current system time.">rt_timer_read</a>(<span class="keywordtype">void</span>)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067         <span class="keywordflow">return</span> <a class="code" href="group__timebase.html#g5246b53b5b2d1b11d4fab4312fd16fda" title="Get the clock time for a given time base.">xntbase_get_time</a>(__native_tbase);
<a name="l00068"></a>00068 }
<a name="l00069"></a>00069 
<a name="l00070"></a>00070 <span class="keyword">static</span> <span class="keyword">inline</span> SRTIME <a class="code" href="include_2native_2timer_8h.html#ad812d18e51f398fbb0e5392b2acdf2f" title="Convert nanoseconds to internal clock ticks.">rt_timer_ns2ticks</a>(SRTIME ns)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072         <span class="keywordflow">return</span> xntbase_ns2ticks(__native_tbase, ns);
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074 
<a name="l00075"></a>00075 <span class="keyword">static</span> <span class="keyword">inline</span> SRTIME <a class="code" href="include_2native_2timer_8h.html#a41e1976c4df9929c1a1238cc1195f48" title="Convert internal clock ticks to nanoseconds.">rt_timer_ticks2ns</a>(SRTIME ticks)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077         <span class="keywordflow">return</span> xntbase_ticks2ns(__native_tbase, ticks);
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079 
<a name="l00080"></a>00080 <span class="preprocessor">#else </span><span class="comment">/* !(__KERNEL__ || __XENO_SIM__) */</span>
<a name="l00081"></a>00081 
<a name="l00105"></a>00105 SRTIME <a class="code" href="include_2native_2timer_8h.html#67fb7c8759946b77e0bee05dfe7b7181" title="Convert nanoseconds to local CPU clock ticks.">rt_timer_ns2tsc</a>(SRTIME ns);
<a name="l00106"></a>00106 
<a name="l00130"></a>00130 SRTIME <a class="code" href="include_2native_2timer_8h.html#493cc6fd8d90059a21f6f8249546b541" title="Convert local CPU clock ticks to nanoseconds.">rt_timer_tsc2ns</a>(SRTIME ticks);
<a name="l00131"></a>00131 
<a name="l00153"></a>00153 RTIME <a class="code" href="include_2native_2timer_8h.html#a589af3dafaeaa5dcbf2ef7b6dde6af8" title="Return the current TSC value.">rt_timer_tsc</a>(<span class="keywordtype">void</span>);
<a name="l00154"></a>00154 
<a name="l00179"></a>00179 RTIME <a class="code" href="include_2native_2timer_8h.html#9665d6947e29d1a19dafb5401b0f6285" title="Return the current system time.">rt_timer_read</a>(<span class="keywordtype">void</span>);
<a name="l00180"></a>00180 
<a name="l00204"></a>00204 SRTIME <a class="code" href="include_2native_2timer_8h.html#ad812d18e51f398fbb0e5392b2acdf2f" title="Convert nanoseconds to internal clock ticks.">rt_timer_ns2ticks</a>(SRTIME ns);
<a name="l00205"></a>00205 
<a name="l00229"></a>00229 SRTIME <a class="code" href="include_2native_2timer_8h.html#a41e1976c4df9929c1a1238cc1195f48" title="Convert internal clock ticks to nanoseconds.">rt_timer_ticks2ns</a>(SRTIME ticks);
<a name="l00230"></a>00230 
<a name="l00231"></a>00231 <span class="preprocessor">#endif </span><span class="comment">/* !(__KERNEL__ || __XENO_SIM__) */</span>
<a name="l00232"></a>00232 
<a name="l00233"></a>00233 <span class="keywordtype">int</span> <a class="code" href="group__native__timer.html#g66f026b0ac68ef3acde0e6d1bdb6baaf" title="Inquire about the timer.">rt_timer_inquire</a>(RT_TIMER_INFO *info);
<a name="l00234"></a>00234 
<a name="l00235"></a>00235 RTIME <a class="code" href="include_2native_2timer_8h.html#9665d6947e29d1a19dafb5401b0f6285" title="Return the current system time.">rt_timer_read</a>(<span class="keywordtype">void</span>);
<a name="l00236"></a>00236 
<a name="l00237"></a>00237 <span class="keywordtype">void</span> <a class="code" href="group__native__timer.html#g7d3f782ce7b642a2759c62649777d2c7" title="Busy wait burning CPU cycles.">rt_timer_spin</a>(RTIME ns);
<a name="l00238"></a>00238 
<a name="l00239"></a>00239 <span class="keywordtype">int</span> <a class="code" href="group__native__timer.html#gffcb5eaef6c3a64a05445f6dafdbb155" title="Set the system clock rate.">rt_timer_set_mode</a>(RTIME nstick);
<a name="l00240"></a>00240 
<a name="l00241"></a>00241 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> __deprecated_call__
<a name="l00242"></a>00242 rt_timer_start(RTIME nstick __attribute__((unused)))
<a name="l00243"></a>00243 {
<a name="l00244"></a>00244     <span class="keywordflow">return</span> 0;
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246 
<a name="l00247"></a>00247 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> __deprecated_call__ rt_timer_stop(<span class="keywordtype">void</span>)
<a name="l00248"></a>00248 {
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250 
<a name="l00251"></a>00251 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00252"></a>00252 <span class="preprocessor"></span>}
<a name="l00253"></a>00253 <span class="preprocessor">#endif</span>
<a name="l00254"></a>00254 <span class="preprocessor"></span>
<a name="l00255"></a>00255 <span class="preprocessor">#endif </span><span class="comment">/* !_XENO_TIMER_H */</span>
</pre></div></div>
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