diff options
Diffstat (limited to 'sysdeps/unix/clock_settime.c')
| -rw-r--r-- | sysdeps/unix/clock_settime.c | 92 |
1 files changed, 44 insertions, 48 deletions
diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c index a93be6349b..0194999b36 100644 --- a/sysdeps/unix/clock_settime.c +++ b/sysdeps/unix/clock_settime.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1999-2004, 2006 Free Software Foundation, Inc. +/* Copyright (C) 1999,2000,2001,2002,2003,2004 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 @@ -36,43 +36,6 @@ 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) @@ -107,22 +70,55 @@ clock_settime (clockid_t clock_id, const struct timespec *tp) #endif default: -#ifdef SYSDEP_SETTIME_CPU - SYSDEP_SETTIME_CPU; +#if HP_TIMING_AVAIL + if ((clock_id & ((1 << CLOCK_IDFIELD_SIZE) - 1)) + != CLOCK_THREAD_CPUTIME_ID) #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; } -#endif + +#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 } return retval; |