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Diffstat (limited to 'sysdeps/unix/clock_settime.c')
-rw-r--r--sysdeps/unix/clock_settime.c92
1 files changed, 48 insertions, 44 deletions
diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c
index 0194999b36..a93be6349b 100644
--- a/sysdeps/unix/clock_settime.c
+++ b/sysdeps/unix/clock_settime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -36,6 +36,43 @@ extern void __pthread_clock_settime (clockid_t clock_id, hp_timing_t offset)
#endif
+#if HP_TIMING_AVAIL
+static int
+hp_timing_settime (clockid_t clock_id, const struct timespec *tp)
+{
+ hp_timing_t tsc;
+ hp_timing_t usertime;
+
+ /* First thing is to get the current time. */
+ HP_TIMING_NOW (tsc);
+
+ if (__builtin_expect (freq == 0, 0))
+ {
+ /* This can only happen if we haven't initialized the `freq'
+ variable yet. Do this now. We don't have to protect this
+ code against multiple execution since all of them should lead
+ to the same result. */
+ freq = __get_clockfreq ();
+ if (__builtin_expect (freq == 0, 0))
+ /* Something went wrong. */
+ return -1;
+ }
+
+ /* Convert the user-provided time into CPU ticks. */
+ usertime = tp->tv_sec * freq + (tp->tv_nsec * freq) / 1000000000ull;
+
+ /* Determine the offset and use it as the new base value. */
+ if (clock_id == CLOCK_PROCESS_CPUTIME_ID
+ || __pthread_clock_settime == NULL)
+ GL(dl_cpuclock_offset) = tsc - usertime;
+ else
+ __pthread_clock_settime (clock_id, tsc - usertime);
+
+ return 0;
+}
+#endif
+
+
/* Set CLOCK to value TP. */
int
clock_settime (clockid_t clock_id, const struct timespec *tp)
@@ -70,55 +107,22 @@ clock_settime (clockid_t clock_id, const struct timespec *tp)
#endif
default:
-#if HP_TIMING_AVAIL
- if ((clock_id & ((1 << CLOCK_IDFIELD_SIZE) - 1))
- != CLOCK_THREAD_CPUTIME_ID)
+#ifdef SYSDEP_SETTIME_CPU
+ SYSDEP_SETTIME_CPU;
#endif
+#ifndef HANDLED_CPUTIME
+# if HP_TIMING_AVAIL
+ if (CPUCLOCK_WHICH (clock_id) == CLOCK_PROCESS_CPUTIME_ID
+ || CPUCLOCK_WHICH (clock_id) == CLOCK_THREAD_CPUTIME_ID)
+ retval = hp_timing_settime (clock_id, tp);
+ else
+# endif
{
__set_errno (EINVAL);
retval = -1;
- break;
}
-
-#if HP_TIMING_AVAIL
- /* FALLTHROUGH. */
- case CLOCK_PROCESS_CPUTIME_ID:
- {
- hp_timing_t tsc;
- hp_timing_t usertime;
-
- /* First thing is to get the current time. */
- HP_TIMING_NOW (tsc);
-
- if (__builtin_expect (freq == 0, 0))
- {
- /* This can only happen if we haven't initialized the `freq'
- variable yet. Do this now. We don't have to protect this
- code against multiple execution since all of them should
- lead to the same result. */
- freq = __get_clockfreq ();
- if (__builtin_expect (freq == 0, 0))
- {
- /* Something went wrong. */
- retval = -1;
- break;
- }
- }
-
- /* Convert the user-provided time into CPU ticks. */
- usertime = tp->tv_sec * freq + (tp->tv_nsec * freq) / 1000000000ull;
-
- /* Determine the offset and use it as the new base value. */
- if (clock_id == CLOCK_PROCESS_CPUTIME_ID
- || __pthread_clock_settime == NULL)
- GL(dl_cpuclock_offset) = tsc - usertime;
- else
- __pthread_clock_settime (clock_id, tsc - usertime);
-
- retval = 0;
- }
- break;
#endif
+ break;
}
return retval;