1 /* Copyright (C) 2006-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
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/>. */
23 #include <kernel-features.h>
24 #include <sysdep-cancel.h>
28 # ifndef __ASSUME_PPOLL
29 static int __generic_ppoll (struct pollfd
*fds
, nfds_t nfds
,
30 const struct timespec
*timeout
,
31 const sigset_t
*sigmask
);
36 ppoll (struct pollfd
*fds
, nfds_t nfds
, const struct timespec
*timeout
,
37 const sigset_t
*sigmask
)
39 /* The Linux kernel can in some situations update the timeout value.
40 We do not want that so use a local variable. */
50 result
= SYSCALL_CANCEL (ppoll
, fds
, nfds
, timeout
, sigmask
, _NSIG
/ 8);
52 # ifndef __ASSUME_PPOLL
53 if (result
== -1 && errno
== ENOSYS
)
54 result
= __generic_ppoll (fds
, nfds
, timeout
, sigmask
);
59 libc_hidden_def (ppoll
)
61 # ifndef __ASSUME_PPOLL
62 # define ppoll static __generic_ppoll
66 #ifndef __ASSUME_PPOLL
67 # include <io/ppoll.c>