1 /* Copyright (C) 2006 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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #include <sys/syscall.h>
26 #if defined __NR_ppoll && defined __UCLIBC_LINUX_SPECIFIC__
27 # ifdef __UCLIBC_HAS_THREADS_NATIVE__
28 # include <sysdep-cancel.h>
30 # define SINGLE_THREAD_P 1
34 ppoll(struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
35 const sigset_t *sigmask)
37 /* The Linux kernel can in some situations update the timeout value.
38 We do not want that so use a local variable. */
40 if (timeout != NULL) {
45 return INLINE_SYSCALL(ppoll, 5, fds, nfds, timeout, sigmask, _NSIG / 8);
47 # ifdef __UCLIBC_HAS_THREADS_NATIVE__
48 int oldtype = LIBC_CANCEL_ASYNC ();
49 int result = INLINE_SYSCALL(ppoll, 5, fds, nfds, timeout, sigmask, _NSIG / 8);
50 LIBC_CANCEL_RESET (oldtype);
54 libc_hidden_def(ppoll)