INativeCondVar::Result LinuxCondVar::wait(Time const & timeout, bool lockMutex)
{
pthread_mutex_t* mutex = reinterpret_cast<pthread_mutex_t *>(_mutex.getNative());
int ret;
timespec ts;
if (lockMutex)
ownLock();
if (timeout != Time::Zero)
{
get_clocktime(&ts);
ts.tv_nsec += timeout.getNano();
ts.tv_sec += timeout.getSeconds();
ret = pthread_cond_timedwait(&_condvar, mutex, &ts);
if (ret == ETIMEDOUT)
return (INativeCondVar::Timeout);
}
else
ret = pthread_cond_wait(&_condvar, mutex);
if (lockMutex)
ownUnlock();
if (ret == 0)
return (INativeCondVar::NoError);
return (INativeCondVar::Failed);
}
/**
* Hook function to be called when the scheduler performs some interesting
* action.
*/
void buffered_trace_task_hook( TRACE_TASK_HOOK_SIGNATURE )
{
#if BUFFERED_TRACE_USE_CLOCKTIME
CLOCKTIME_T clocktime = get_clocktime( );
#endif /* BUFFERED_TRACE_USE_CLOCKTIME */
/* Create a new trace activity */
trace_log_action_t new_action;
new_action.task_tcb = task_storeinfo( p, (char *) TaskName, TCBNumber );
new_action.action = action;
/* Add this action to the trace log */
add_action( ticks,
#if BUFFERED_TRACE_USE_CLOCKTIME
clocktime,
#endif /* BUFFERED_TRACE_USE_CLOCKTIME */
new_action,
WICED_FALSE );
} /* buffered_trace_task_hook */
void jitter(const iomode mode)
{
l_fp tr;
int i;
double gtod[NBUF];
/*
* Force pages into memory
*/
for (i = 0; i < NBUF; i ++)
gtod[i] = 0;
/*
* Construct gtod array
*/
for (i = 0; i < NBUF; i ++) {
get_clocktime(&tr);
LFPTOD(&tr, gtod[i]);
}
/*
* Write out gtod array for later processing with Matlab
*/
average = 0;
for (i = 0; i < NBUF - 2; i++) {
gtod[i] = gtod[i + 1] - gtod[i];
if (mode == raw)
printf("%13.9f\n", gtod[i]);
average += gtod[i];
}
if (mode == raw)
exit(0);
/*
* Sort the gtod array and display deciles
*/
qsort(gtod, NBUF, sizeof(gtod[0]), doublecmp);
average = average / (NBUF - 2);
if (mode == json) {
fprintf(stdout, "{\"Average\":%13.9f,", average);
fprintf(stdout, "\"First rank\":[");
for (i = 0; i < NSAMPLES; i++) {
fprintf(stdout, "%13.9f", gtod[i]);
if (i < NSAMPLES - 1)
fputc(',', stdout);
fputs("],", stdout);
}
fprintf(stdout, "\"Last rank\":");
for (i = NBUF - 12; i < NBUF - 2; i++) {
fprintf(stdout, "%13.9f\n", gtod[i]);
if (i < NSAMPLES - 1)
fputc(',', stdout);
fputs("]}\n", stdout);
}
}
else if (mode != raw)
{
fprintf(stdout, "Average %13.9f\n", average);
fprintf(stdout, "First rank\n");
for (i = 0; i < NSAMPLES; i++)
fprintf(stdout, "%2d %13.9f\n", i, gtod[i]);
fprintf(stdout, "Last rank\n");
for (i = NBUF - 12; i < NBUF - 2; i++)
fprintf(stdout, "%2d %13.9f\n", i, gtod[i]);
}
exit(0);
}
