Time getThreadCPUTime(void)
{
#if USE_PAPI
long long usec;
if ((usec = PAPI_get_virt_usec()) < 0) {
barf("PAPI_get_virt_usec: %lld", usec);
}
return USToTime(usec);
#elif !defined(BE_CONSERVATIVE) && defined(HAVE_CLOCK_GETTIME) && defined (_SC_THREAD_CPUTIME) && defined(CLOCK_THREAD_CPUTIME_ID) && defined(HAVE_SYSCONF)
{
static int checked_sysconf = 0;
static int sysconf_result = 0;
if (!checked_sysconf) {
sysconf_result = sysconf(_SC_THREAD_CPUTIME);
checked_sysconf = 1;
}
if (sysconf_result != -1) {
// clock_gettime() gives us per-thread CPU time. It isn't
// reliable on Linux, but it's the best we have.
struct timespec ts;
int res;
res = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts);
if (res == 0) {
return SecondsToTime(ts.tv_sec) + NSToTime(ts.tv_nsec);
}
}
}
#endif
return getProcessCPUTime();
}
double
mut_user_time( void )
{
Time cpu;
cpu = getProcessCPUTime();
return mut_user_time_until(cpu);
}
Ticks
getThreadCPUTime(void)
{
FILETIME creationTime, exitTime, userTime, kernelTime = {0,0};
if (isWin9x()) return getProcessCPUTime();
if (!GetThreadTimes(GetCurrentThread(), &creationTime,
&exitTime, &kernelTime, &userTime)) {
return 0;
}
return fileTimeToTicks(userTime);
}
Ticks getThreadCPUTime(void)
{
#if USE_PAPI
long long usec;
if ((usec = PAPI_get_virt_usec()) < 0) {
barf("PAPI_get_virt_usec: %lld", usec);
}
return ((usec * TICKS_PER_SECOND) / 1000000);
#elif !defined(BE_CONSERVATIVE) && defined(HAVE_CLOCK_GETTIME) && defined (_POSIX_THREAD_CPUTIME) && defined(CLOCK_THREAD_CPUTIME_ID) && defined(HAVE_SYSCONF)
if (sysconf(_POSIX_THREAD_CPUTIME) != -1) {
// clock_gettime() gives us per-thread CPU time. It isn't
// reliable on Linux, but it's the best we have.
struct timespec ts;
int res;
res = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts);
if (res == 0) {
return ((Ticks)ts.tv_sec * TICKS_PER_SECOND +
((Ticks)ts.tv_nsec * TICKS_PER_SECOND) / 1000000000);
}
}
#endif
return getProcessCPUTime();
}
void getProcessTimes(Time *user, Time *elapsed)
{
*user = getProcessCPUTime();
*elapsed = getProcessElapsedTime();
}