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Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c b/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c
deleted file mode 100644
index 30ef991bd0..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/* Copyright (C) 2006, 2007 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
-
- 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>
-#include <pthreadP.h>
-
-
-int
-__lll_robust_lock_wait (int *futex)
-{
- int oldval = *futex;
- int tid = THREAD_GETMEM (THREAD_SELF, tid);
-
- /* If the futex changed meanwhile try locking again. */
- if (oldval == 0)
- goto try;
-
- do
- {
- if (__builtin_expect (oldval & FUTEX_OWNER_DIED, 0))
- return oldval;
-
- int newval = oldval | FUTEX_WAITERS;
- if (oldval != newval
- && atomic_compare_and_exchange_bool_acq (futex, newval, oldval))
- continue;
-
- lll_futex_wait (futex, newval);
-
- try:
- ;
- }
- while ((oldval = atomic_compare_and_exchange_val_acq (futex,
- tid | FUTEX_WAITERS,
- 0)) != 0);
- return 0;
-}
-
-
-int
-__lll_robust_timedlock_wait (int *futex, const struct timespec *abstime)
-{
- /* Reject invalid timeouts. */
- if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
- return EINVAL;
-
- int tid = THREAD_GETMEM (THREAD_SELF, tid);
- int oldval = *futex;
-
- /* If the futex changed meanwhile try locking again. */
- if (oldval == 0)
- goto try;
-
- 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. */
- if (__builtin_expect (oldval & FUTEX_OWNER_DIED, 0))
- return oldval;
-
- int newval = oldval | FUTEX_WAITERS;
- if (oldval != newval
- && atomic_compare_and_exchange_bool_acq (futex, newval, oldval))
- continue;
-
- lll_futex_timed_wait (futex, newval, &rt);
-
- try:
- ;
- }
- while ((oldval = atomic_compare_and_exchange_val_acq (futex,
- tid | FUTEX_WAITERS,
- 0)) != 0);
-
- return 0;
-}