diff options
Diffstat (limited to 'sysdeps/unix/clock_settime.c')
| -rw-r--r-- | sysdeps/unix/clock_settime.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c deleted file mode 100644 index e744cae6a9..0000000000 --- a/sysdeps/unix/clock_settime.c +++ /dev/null @@ -1,126 +0,0 @@ -/* Copyright (C) 1999-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <time.h> -#include <sys/time.h> -#include <ldsodefs.h> - - -#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME -/* 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; - - -/* This function is defined in the thread library. */ -extern void __pthread_clock_settime (clockid_t clock_id, hp_timing_t offset) - __attribute__ ((__weak__)); - - -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 (__glibc_unlikely (freq == 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 (__glibc_unlikely (freq == 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) -{ - 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) - { -#define HANDLE_REALTIME \ - do { \ - struct timeval tv; \ - TIMESPEC_TO_TIMEVAL (&tv, tp); \ - \ - retval = settimeofday (&tv, NULL); \ - } while (0) - -#ifdef SYSDEP_SETTIME - SYSDEP_SETTIME; -#endif - -#ifndef HANDLED_REALTIME - case CLOCK_REALTIME: - HANDLE_REALTIME; - break; -#endif - - default: -#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; - } -#endif - break; - } - - return retval; -} -weak_alias (__clock_settime, clock_settime) |