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authorUlrich Drepper <drepper@redhat.com>2003-06-17 20:46:06 +0000
committerUlrich Drepper <drepper@redhat.com>2003-06-17 20:46:06 +0000
commitaa3cee213a291e2fd7298579059706622dd16793 (patch)
tree03e41fae515f7332a202683818f4d1d98053381a /sysdeps
parent047aec8f19cdb702f2a0645643f38a12033c353d (diff)
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Update.
* sysdeps/unix/sysv/linux/sigtimedwait.c: If SIGCANCEL is defined and part of the incoming set, create a temporary set without this signal. * sysdeps/unix/sysv/linux/sigwait.c: Likewise. * sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise. returning because seconds==0. Add __builtin_expect.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/sigtimedwait.c12
-rw-r--r--sysdeps/unix/sysv/linux/sigwait.c14
-rw-r--r--sysdeps/unix/sysv/linux/sigwaitinfo.c12
-rw-r--r--sysdeps/unix/sysv/linux/sleep.c2
4 files changed, 38 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/sigtimedwait.c b/sysdeps/unix/sysv/linux/sigtimedwait.c
index a22a1d2ea8..a016b71ec7 100644
--- a/sysdeps/unix/sysv/linux/sigtimedwait.c
+++ b/sysdeps/unix/sysv/linux/sigtimedwait.c
@@ -32,6 +32,18 @@ static int
do_sigtimedwait (const sigset_t *set, siginfo_t *info,
const struct timespec *timeout)
{
+#ifdef SIGCANCEL
+ sigset_t tmpset;
+ if (set != NULL && __sigismember (set, SIGCANCEL))
+ {
+ /* Create a temporary mask without the bit for SIGCANCEL set. */
+ // We are not copying more than we have to.
+ memcpy (&tmpset, set, _NSIG / 8);
+ __sigdelset (&tmpset, SIGCANCEL);
+ set = &tmpset;
+ }
+#endif
+
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
int result = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
diff --git a/sysdeps/unix/sysv/linux/sigwait.c b/sysdeps/unix/sysv/linux/sigwait.c
index 097d62f9ca..49371cfdfd 100644
--- a/sysdeps/unix/sysv/linux/sigwait.c
+++ b/sysdeps/unix/sysv/linux/sigwait.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000, 2002, 2003 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
@@ -36,6 +36,18 @@ do_sigwait (const sigset_t *set, int *sig)
{
int ret;
+#ifdef SIGCANCEL
+ sigset_t tmpset;
+ if (set != NULL && __sigismember (set, SIGCANCEL))
+ {
+ /* Create a temporary mask without the bit for SIGCANCEL set. */
+ // We are not copying more than we have to.
+ memcpy (&tmpset, set, _NSIG / 8);
+ __sigdelset (&tmpset, SIGCANCEL);
+ set = &tmpset;
+ }
+#endif
+
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
#ifdef INTERNAL_SYSCALL
diff --git a/sysdeps/unix/sysv/linux/sigwaitinfo.c b/sysdeps/unix/sysv/linux/sigwaitinfo.c
index ade5ce9175..56cf0c96bb 100644
--- a/sysdeps/unix/sysv/linux/sigwaitinfo.c
+++ b/sysdeps/unix/sysv/linux/sigwaitinfo.c
@@ -33,6 +33,18 @@ extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__
static int
do_sigwaitinfo (const sigset_t *set, siginfo_t *info)
{
+#ifdef SIGCANCEL
+ sigset_t tmpset;
+ if (set != NULL && __sigismember (set, SIGCANCEL))
+ {
+ /* Create a temporary mask without the bit for SIGCANCEL set. */
+ // We are not copying more than we have to.
+ memcpy (&tmpset, set, _NSIG / 8);
+ __sigdelset (&tmpset, SIGCANCEL);
+ set = &tmpset;
+ }
+#endif
+
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
int result = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
diff --git a/sysdeps/unix/sysv/linux/sleep.c b/sysdeps/unix/sysv/linux/sleep.c
index ac92f6eced..8df67173c1 100644
--- a/sysdeps/unix/sysv/linux/sleep.c
+++ b/sysdeps/unix/sysv/linux/sleep.c
@@ -34,7 +34,7 @@ __sleep (unsigned int seconds)
unsigned int result;
/* This is not necessary but some buggy programs depend on this. */
- if (seconds == 0)
+ if (__builtin_expect (seconds == 0, 0))
{
#ifdef CANCELLATION_P
CANCELLATION_P (THREAD_SELF);