1 /* Copyright (C) 2011 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <http://www.gnu.org/licenses/>. */
21 #include <sysdep-cancel.h>
23 /* Suspend the process until a signal arrives.
24 This always returns -1 and sets errno to EINTR. */
27 __syscall_pause (void)
32 INLINE_SYSCALL (rt_sigprocmask
, 4, SIG_BLOCK
, NULL
, &set
, _NSIG
/ 8);
34 rc
= INLINE_SYSCALL (rt_sigsuspend
, 2, &set
, _NSIG
/ 8);
43 return __syscall_pause ();
45 int oldtype
= LIBC_CANCEL_ASYNC ();
47 int result
= __syscall_pause ();
49 LIBC_CANCEL_RESET (oldtype
);
53 weak_alias (__libc_pause
, pause
)
55 #ifndef NO_CANCELLATION
56 # include <not-cancel.h>
59 __pause_nocancel (void)
61 return __syscall_pause ();