diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c deleted file mode 100644 index a7611d6a88..0000000000 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c +++ /dev/null @@ -1,131 +0,0 @@ -/* low level locking for pthread library. SPARC version. - Copyright (C) 2003, 2006 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. - - 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 <sysdep.h> -#include <lowlevellock.h> -#include <sys/time.h> - - -void -__lll_lock_wait (int *futex) -{ - do - { - int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); - if (oldval != 0) - lll_futex_wait (futex, 2); - } - while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); -} - - -int -__lll_timedlock_wait (int *futex, const struct timespec *abstime) -{ - /* Reject invalid timeouts. */ - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) - return EINVAL; - - do - { - struct timeval tv; - struct timespec rt; - - /* Get the current time. */ - (void) __gettimeofday (&tv, NULL); - - /* Compute relative timeout. */ - rt.tv_sec = abstime->tv_sec - tv.tv_sec; - rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; - if (rt.tv_nsec < 0) - { - rt.tv_nsec += 1000000000; - --rt.tv_sec; - } - - /* Already timed out? */ - if (rt.tv_sec < 0) - return ETIMEDOUT; - - /* Wait. */ - int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); - if (oldval != 0) - lll_futex_timed_wait (futex, 2, &rt); - } - while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); - - return 0; -} - - -/* These don't get included in libc.so */ -#ifdef IS_IN_libpthread -int -lll_unlock_wake_cb (int *futex) -{ - int val = atomic_exchange_24_rel (futex, 0); - - if (__builtin_expect (val > 1, 0)) - lll_futex_wake (futex, 1); - - return 0; -} - - -int -__lll_timedwait_tid (int *tidp, const struct timespec *abstime) -{ - int tid; - - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) - return EINVAL; - - /* Repeat until thread terminated. */ - while ((tid = *tidp) != 0) - { - struct timeval tv; - struct timespec rt; - - /* Get the current time. */ - (void) __gettimeofday (&tv, NULL); - - /* Compute relative timeout. */ - rt.tv_sec = abstime->tv_sec - tv.tv_sec; - rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; - if (rt.tv_nsec < 0) - { - rt.tv_nsec += 1000000000; - --rt.tv_sec; - } - - /* Already timed out? */ - if (rt.tv_sec < 0) - return ETIMEDOUT; - - /* Wait until thread terminates. */ - if (lll_futex_timed_wait (tidp, tid, &rt) == -ETIMEDOUT) - return ETIMEDOUT; - } - - return 0; -} - -#endif |