/* Copyright (C) 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2006. 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 <signal.h> #include <sys/syscall.h> #include <sys/poll.h> #define __need_NULL #include <stddef.h> #if defined __NR_ppoll && defined __UCLIBC_LINUX_SPECIFIC__ # ifdef __UCLIBC_HAS_THREADS_NATIVE__ # include <sysdep-cancel.h> # else # define SINGLE_THREAD_P 1 # endif int ppoll(struct pollfd *fds, nfds_t nfds, const struct timespec *timeout, const sigset_t *sigmask) { /* The Linux kernel can in some situations update the timeout value. We do not want that so use a local variable. */ struct timespec tval; if (timeout != NULL) { tval = *timeout; timeout = &tval; } if (SINGLE_THREAD_P) return INLINE_SYSCALL(ppoll, 5, fds, nfds, timeout, sigmask, _NSIG / 8); # ifdef __UCLIBC_HAS_THREADS_NATIVE__ int oldtype = LIBC_CANCEL_ASYNC (); int result = INLINE_SYSCALL(ppoll, 5, fds, nfds, timeout, sigmask, _NSIG / 8); LIBC_CANCEL_RESET (oldtype); return result; # endif } libc_hidden_def(ppoll) #endif