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authorUlrich Drepper <drepper@redhat.com>2002-08-08 22:13:45 +0000
committerUlrich Drepper <drepper@redhat.com>2002-08-08 22:13:45 +0000
commit76e34a5d90b7fd097f2de258e053757a35e3a71f (patch)
treeff65b3fb1e4d0ebe064b2d880b464b3112d666a0
parent9498b54c00dbb2965377702ddeef4934892ee2e7 (diff)
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sigwait implementation for Linux based in sigtimedwait syscall.
-rw-r--r--sysdeps/unix/sysv/linux/sigwait.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sigwait.c b/sysdeps/unix/sysv/linux/sigwait.c
new file mode 100644
index 0000000..522359e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigwait.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 1997, 1998, 2000, 2002 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
+ 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 <signal.h>
+#define __need_NULL
+#include <stddef.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include <bp-checks.h>
+
+#ifdef __NR_rt_sigtimedwait
+extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded,
+ const struct timespec *__unbounded, size_t);
+
+
+/* Return any pending signal or wait for one for the given time. */
+int
+__sigwait (set, sig)
+ const sigset_t *set;
+ int *sig;
+{
+ siginfo_t info;
+ int ret;
+
+ /* XXX The size argument hopefully will have to be changed to the
+ real size of the user-level sigset_t. */
+ ret = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
+ CHECK_1 (&info), NULL, _NSIG / 8);
+ if (ret == 0)
+ *sig = info.si_signo;
+
+ return ret;
+}
+weak_alias (__sigwait, sigwait)
+#else
+# include <sysdeps/posix/sigwait.c>
+#endif