int main( int argc, char** argv )
{
tick_t start, time;
tick_t tick, freq, res;
printf( "Timer test\n" );
timer_lib_initialize();
res = 0xFFFFFFFFFFFFFFFFULL;
freq = timer_ticks_per_second();
start = timer_current();
while( 1 )
{
time = timer_current();
do {
tick = timer_elapsed_ticks( time );
} while( !tick );
if( tick < res )
res = tick;
if( timer_elapsed( start ) > 10.0 )
break;
}
printf( "Resolution: %lfms (%d ticks)\n", 1000.0 * (double)timer_ticks_to_seconds( res ), (int)res );
timer_lib_shutdown();
return 0;
}
/** performance timer end, and return the time passed */
static unsigned int perf_end(void)
{
unsigned int end = 0;
if (timer_current(perf_id, (void *)(&end)) < 0) {
return 0;
}
if (start < end) {
return (end - start);
} else {
return (0xFFFFFFFF - start + end);
}
}
/** performance timer start */
static void perf_start(void)
{
if (timer_current(perf_id, (void *)(&start)) < 0) {
start = 0;
}
}