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author | Ulrich Drepper <drepper@redhat.com> | 2002-12-14 19:49:13 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-14 19:49:13 +0000 |
commit | 9d263d72848fb561e104a21da3ffccf791078f2a (patch) | |
tree | a4004b7cacfaf715a38199cdbb0c4114677c5508 /nptl/sysdeps/unix/sysv/linux/sigwait.c | |
parent | 36b3f3eb117f2923b1080a22f748e4a6cd63de73 (diff) | |
download | glibc-9d263d72848fb561e104a21da3ffccf791078f2a.tar.gz glibc-9d263d72848fb561e104a21da3ffccf791078f2a.tar.xz glibc-9d263d72848fb561e104a21da3ffccf791078f2a.zip |
Update.
2002-12-14 Jakub Jelinek <jakub@redhat.com> * dirent/bug-readdir1.c: Include unistd.h.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sigwait.c')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sigwait.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sigwait.c b/nptl/sysdeps/unix/sysv/linux/sigwait.c new file mode 100644 index 0000000000..540ca57182 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sigwait.c @@ -0,0 +1,91 @@ +/* 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> +#include <nptl/pthreadP.h> +#include <tls.h> + +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. */ +static int +do_sigwait (const sigset_t *set, int *sig) +{ + int ret; + + /* XXX The size argument hopefully will have to be changed to the + real size of the user-level sigset_t. */ +#ifdef INTERNAL_SYSCALL + ret = INTERNAL_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set), + NULL, NULL, _NSIG / 8); + if (! INTERNAL_SYSCALL_ERROR_P (ret)) + { + *sig = ret; + ret = 0; + } + else + ret = INTERNAL_SYSCALL_ERRNO (ret); +#else + ret = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set), + NULL, NULL, _NSIG / 8); + if (ret != -1) + { + *sig = ret; + ret = 0; + } + else + ret = errno; +#endif + + return ret; +} + + +int +__sigwait (set, sig) + const sigset_t *set; + int *sig; +{ +#ifndef NOT_IN_libc + if (__builtin_expect (THREAD_GETMEM (THREAD_SELF, + header.data.multiple_threads) == 0, 1)) + return do_sigwait (set, sig); + + int oldtype = LIBC_CANCEL_ASYNC (); +#endif + + int result = do_sigwait (set, sig); + +#ifndef NOT_IN_libc + LIBC_CANCEL_RESET (oldtype); +#endif + + return result; +} +libc_hidden_def (__sigwait) +weak_alias (__sigwait, sigwait) +strong_alias (__sigwait, __libc_sigwait) |