diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_getcpuclockid.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/clock_getcpuclockid.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c deleted file mode 100644 index 04bf49e45f..0000000000 --- a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c +++ /dev/null @@ -1,103 +0,0 @@ -/* clock_getcpuclockid -- Get a clockid_t for process CPU time. Linux version. - Copyright (C) 2004, 2005, 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 - 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 <unistd.h> -#include <kernel-features.h> -#include "kernel-posix-cpu-timers.h" - -#ifndef HAS_CPUCLOCK -# define HAS_CPUCLOCK 1 -#endif - -int -clock_getcpuclockid (pid_t pid, clockid_t *clock_id) -{ -#ifdef __NR_clock_getres - /* The clockid_t value is a simple computation from the PID. - But we do a clock_getres call to validate it. */ - - const clockid_t pidclock = MAKE_PROCESS_CPUCLOCK (pid, CPUCLOCK_SCHED); - -# if !(__ASSUME_POSIX_CPU_TIMERS > 0) - extern int __libc_missing_posix_cpu_timers attribute_hidden; -# if !(__ASSUME_POSIX_TIMERS > 0) - extern int __libc_missing_posix_timers attribute_hidden; - if (__libc_missing_posix_timers && !__libc_missing_posix_cpu_timers) - __libc_missing_posix_cpu_timers = 1; -# endif - if (!__libc_missing_posix_cpu_timers) -# endif - { - INTERNAL_SYSCALL_DECL (err); - int r = INTERNAL_SYSCALL (clock_getres, err, 2, pidclock, NULL); - if (!INTERNAL_SYSCALL_ERROR_P (r, err)) - { - *clock_id = pidclock; - return 0; - } - -# if !(__ASSUME_POSIX_TIMERS > 0) - if (INTERNAL_SYSCALL_ERRNO (r, err) == ENOSYS) - { - /* The kernel doesn't support these calls at all. */ - __libc_missing_posix_timers = 1; - __libc_missing_posix_cpu_timers = 1; - } - else -# endif - if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL) - { -# if !(__ASSUME_POSIX_CPU_TIMERS > 0) - if (pidclock == MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED) - || INTERNAL_SYSCALL_ERROR_P (INTERNAL_SYSCALL - (clock_getres, err, 2, - MAKE_PROCESS_CPUCLOCK - (0, CPUCLOCK_SCHED), NULL), - err)) - /* The kernel doesn't support these clocks at all. */ - __libc_missing_posix_cpu_timers = 1; - else -# endif - /* The clock_getres system call checked the PID for us. */ - return ESRCH; - } - else - return INTERNAL_SYSCALL_ERRNO (r, err); - } -#endif - - /* We don't allow any process ID but our own. */ - if (pid != 0 && pid != getpid ()) - return EPERM; - -#ifdef CLOCK_PROCESS_CPUTIME_ID - if (HAS_CPUCLOCK) - { - /* Store the number. */ - *clock_id = CLOCK_PROCESS_CPUTIME_ID; - - return 0; - } -#endif - - /* We don't have a timer for that. */ - return ENOENT; -} |