diff options
Diffstat (limited to 'linuxthreads/sysdeps/pthread/getcpuclockid.c')
| -rw-r--r-- | linuxthreads/sysdeps/pthread/getcpuclockid.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/linuxthreads/sysdeps/pthread/getcpuclockid.c b/linuxthreads/sysdeps/pthread/getcpuclockid.c deleted file mode 100644 index 1c64e6c2be..0000000000 --- a/linuxthreads/sysdeps/pthread/getcpuclockid.c +++ /dev/null @@ -1,117 +0,0 @@ -/* pthread_getcpuclockid -- Get POSIX clockid_t for a pthread_t. Linux version - Copyright (C) 2000, 2001, 2004, 2005 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; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <sys/time.h> -#include <time.h> -#include <internals.h> -#include <spinlock.h> -#include <kernel-features.h> -#include <kernel-posix-cpu-timers.h> - - -#if !(__ASSUME_POSIX_CPU_TIMERS > 0) -int __libc_missing_posix_cpu_timers attribute_hidden; -#endif -#if !(__ASSUME_POSIX_TIMERS > 0) -int __libc_missing_posix_timers attribute_hidden; -#endif - -int -pthread_getcpuclockid (pthread_t thread_id, clockid_t *clock_id) -{ -#ifdef __NR_clock_getres - pthread_handle handle = thread_handle(thread_id); - int pid; - - __pthread_lock (&handle->h_lock, NULL); - if (nonexisting_handle (handle, thread_id)) - { - __pthread_unlock (&handle->h_lock); - return ESRCH; - } - pid = handle->h_descr->p_pid; - __pthread_unlock (&handle->h_lock); - - /* The clockid_t value is a simple computation from the PID. - But we do a clock_getres call to validate it if we aren't - yet sure we have the kernel support. */ - - const clockid_t pidclock = MAKE_PROCESS_CPUCLOCK (pid, CPUCLOCK_SCHED); - -# if !(__ASSUME_POSIX_CPU_TIMERS > 0) -# if !(__ASSUME_POSIX_TIMERS > 0) - if (__libc_missing_posix_timers && !__libc_missing_posix_cpu_timers) - __libc_missing_posix_cpu_timers = 1; -# endif - if (!__libc_missing_posix_cpu_timers) - { - INTERNAL_SYSCALL_DECL (err); - int r = INTERNAL_SYSCALL (clock_getres, err, 2, pidclock, NULL); - if (!INTERNAL_SYSCALL_ERROR_P (r, err)) -# endif - { - *clock_id = pidclock; - return 0; - } - -# if !(__ASSUME_POSIX_CPU_TIMERS > 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) - { - /* The kernel doesn't support these clocks at all. */ - __libc_missing_posix_cpu_timers = 1; - } - else - return INTERNAL_SYSCALL_ERRNO (r, err); - } -# endif -#endif - -#ifdef CLOCK_THREAD_CPUTIME_ID - /* We need to store the thread ID in the CLOCKID variable together - with a number identifying the clock. We reserve the low 3 bits - for the clock ID and the rest for the thread ID. This is - problematic if the thread ID is too large. But 29 bits should be - fine. - - If some day more clock IDs are needed the ID part can be - enlarged. The IDs are entirely internal. */ - if (2 * PTHREAD_THREADS_MAX - >= 1 << (8 * sizeof (*clock_id) - CLOCK_IDFIELD_SIZE)) - return ERANGE; - - /* Store the number. */ - *clock_id = CLOCK_THREAD_CPUTIME_ID | (thread_id << CLOCK_IDFIELD_SIZE); - - return 0; -#else - /* We don't have a timer for that. */ - return ENOENT; -#endif -} |