diff options
Diffstat (limited to 'newlib/libc/sys/linux/clock_settime.c')
| -rw-r--r-- | newlib/libc/sys/linux/clock_settime.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/newlib/libc/sys/linux/clock_settime.c b/newlib/libc/sys/linux/clock_settime.c deleted file mode 100644 index 79a9b564a..000000000 --- a/newlib/libc/sys/linux/clock_settime.c +++ /dev/null @@ -1,111 +0,0 @@ -/* Copyright (C) 1999, 2000, 2001 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 - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <time.h> -#include <sys/time.h> -#include <libc-internal.h> - - -#if HP_TIMING_AVAIL -/* Clock frequency of the processor. We make it a 64-bit variable - because some jokers are already playing with processors with more - than 4GHz. */ -static hp_timing_t freq; - - -/* We need the starting time for the process. */ -extern hp_timing_t _dl_cpuclock_offset; - - -/* This function is defined in the thread library. */ -extern void __pthread_clock_settime (hp_timing_t offset) - __attribute__ ((__weak__)); -#endif - - -/* Set CLOCK to value TP. */ -int -clock_settime (clockid_t clock_id, const struct timespec *tp) -{ - struct timeval tv; - int retval; - - /* Make sure the time cvalue is OK. */ - if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000) - { - __set_errno (EINVAL); - return -1; - } - - switch (clock_id) - { - case CLOCK_REALTIME: - TIMESPEC_TO_TIMEVAL (&tv, tp); - - retval = settimeofday (&tv, NULL); - break; - -#if HP_TIMING_AVAIL - case CLOCK_PROCESS_CPUTIME_ID: - case CLOCK_THREAD_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_THREAD_CPUTIME_ID - || __pthread_clock_settime == NULL) - _dl_cpuclock_offset = tsc - usertime; - else - __pthread_clock_settime (tsc - usertime); - - retval = 0; - } - break; -#endif - - default: - __set_errno (EINVAL); - retval = -1; - break; - } - - return retval; -} |