CLOCK_PROCESS_CPUTIME_ID
*clock_id = CLOCK_PROCESS_CPUTIME_ID;
#ifdef CLOCK_PROCESS_CPUTIME_ID
CLOCK_PROCESS_CPUTIME_ID,
#ifdef CLOCK_PROCESS_CPUTIME_ID
CLOCK_PROCESS_CPUTIME_ID,
#ifdef CLOCK_PROCESS_CPUTIME_ID
CLOCK_PROCESS_CPUTIME_ID,
#ifdef CLOCK_PROCESS_CPUTIME_ID
CLOCK_PROCESS_CPUTIME_ID,
ASSERT_EQ(0, clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &tp));
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_PROCESS_CPUTIME_ID: