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Add a mechanism for cancelling begin/end perf counters.

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px4dev
2013-07-05 22:53:57 -07:00
parent 3c8c596ac7
commit 6871d2909b
2 changed files with 47 additions and 8 deletions
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src/modules/systemlib/perf_counter.c
+34 -7
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@@ -201,23 +201,50 @@ perf_end(perf_counter_t handle)
switch (handle->type) {
case PC_ELAPSED: {
struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
hrt_abstime elapsed = hrt_absolute_time() - pce->time_start;
pce->event_count++;
pce->time_total += elapsed;
if (pce->time_start != 0) {
hrt_abstime elapsed = hrt_absolute_time() - pce->time_start;
if ((pce->time_least > elapsed) || (pce->time_least == 0))
pce->time_least = elapsed;
pce->event_count++;
pce->time_total += elapsed;
if (pce->time_most < elapsed)
pce->time_most = elapsed;
if ((pce->time_least > elapsed) || (pce->time_least == 0))
pce->time_least = elapsed;
if (pce->time_most < elapsed)
pce->time_most = elapsed;
pce->time_start = 0;
}
}
break;
default:
break;
}
}
void
perf_cancel(perf_counter_t handle)
{
if (handle == NULL)
return;
switch (handle->type) {
case PC_ELAPSED: {
struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
pce->time_start = 0;
}
break;
default:
break;
}
}
void
perf_reset(perf_counter_t handle)
{