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authorRoland McGrath <roland@gnu.org>2003-03-11 09:30:37 +0000
committerRoland McGrath <roland@gnu.org>2003-03-11 09:30:37 +0000
commitb33e61633a10a233510f6f49b97b7e2ad15c7311 (patch)
tree9b6025b692435f629bc771dca74dcfb48e41768a /nptl/sysdeps/unix/sysv/linux/ia64/sem_timedwait.c
parent5d5d5969b17422e3b1af6f88436e91f32a36fd58 (diff)
downloadglibc-b33e61633a10a233510f6f49b97b7e2ad15c7311.tar.gz
* sysdeps/generic/dl-sysdep.c (_dl_important_hwcaps): If CNT == 1,
allocate space even for the trailing '/'. Reported by John Reiser <jreiser@BitWagon.com>. * sysdeps/unix/sysv/linux/ia64/sysdep.h (LOAD_ARGS_6, ASM_ARGS_6, ASM_CLOBBERS_6): Define. (ASM_CLOBBERS_5): Use ASM_CLOBBERS_6. * sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Reorder arguments to match IA-32 order. * sysdeps/unix/sysv/linux/i386/clone.S: Fix comment.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/ia64/sem_timedwait.c')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/ia64/sem_timedwait.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/ia64/sem_timedwait.c
new file mode 100644
index 0000000000..85b4e3ce5c
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/sem_timedwait.c
@@ -0,0 +1,91 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.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 <internaltypes.h>
+
+#include <shlib-compat.h>
+
+
+int
+sem_timedwait (sem, abstime)
+ sem_t *sem;
+ const struct timespec *abstime;
+{
+ int oldval, val;
+
+ val = *(int *) sem;
+ do
+ {
+ while (__builtin_expect (val == 0, 0))
+ {
+ /* Check for invalid timeout values. */
+ if (abstime->tv_nsec >= 1000000000)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ /* Get the current time. */
+ struct timeval tv;
+ (void) gettimeofday(&tv, NULL);
+
+ /* Compute the 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;
+ }
+ /* Already timed out. */
+ if (rt.tv_sec < 0)
+ {
+ __set_errno (ETIMEDOUT);
+ return -1;
+ }
+
+ /* Do wait. */
+ int err = lll_futex_timed_wait ((int *) sem, 0, &rt);
+
+ /* Returned after timing out? */
+ if (err == -ETIMEDOUT)
+ {
+ __set_errno (ETIMEDOUT);
+ return -1;
+ }
+
+ /* Handle EINTR. */
+ if (err != 0 && err != -EWOULDBLOCK)
+ {
+ __set_errno (-err);
+ return -1;
+ }
+
+ val = *(int *) sem;
+ }
+ oldval = val;
+ }
+ while ((val = lll_compare_and_swap ((int *) sem, oldval, oldval - 1))
+ != oldval);
+ return 0;
+}