diff options
Diffstat (limited to 'nptl/lll_timedlock_wait.c')
-rw-r--r-- | nptl/lll_timedlock_wait.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/nptl/lll_timedlock_wait.c b/nptl/lll_timedlock_wait.c deleted file mode 100644 index 604953c04c..0000000000 --- a/nptl/lll_timedlock_wait.c +++ /dev/null @@ -1,59 +0,0 @@ -/* Timed low level locking for pthread library. Generic futex-using version. - Copyright (C) 2003-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <atomic.h> -#include <errno.h> -#include <lowlevellock.h> -#include <sys/time.h> - - -int -__lll_timedlock_wait (int *futex, const struct timespec *abstime, int private) -{ - /* Reject invalid timeouts. */ - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) - return EINVAL; - - /* Try locking. */ - while (atomic_exchange_acq (futex, 2) != 0) - { - struct timeval tv; - - /* Get the current time. */ - (void) __gettimeofday (&tv, NULL); - - /* Compute relative timeout. */ - struct timespec rt; - 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; - } - - if (rt.tv_sec < 0) - return ETIMEDOUT; - - /* If *futex == 2, wait until woken or timeout. */ - lll_futex_timed_wait (futex, 2, &rt, private); - } - - return 0; -} |