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Filename :
poll2.h
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/* Checking macros for poll functions. Copyright (C) 2012 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, see <http://www.gnu.org/licenses/>. */ #ifndef _SYS_POLL_H # error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead." #endif __BEGIN_DECLS extern int __REDIRECT (__poll_alias, (struct pollfd *__fds, nfds_t __nfds, int __timeout), poll); extern int __poll_chk (struct pollfd *__fds, nfds_t __nfds, int __timeout, __SIZE_TYPE__ __fdslen); extern int __REDIRECT (__poll_chk_warn, (struct pollfd *__fds, nfds_t __nfds, int __timeout, __SIZE_TYPE__ __fdslen), __poll_chk) __warnattr ("poll called with fds buffer too small file nfds entries"); __fortify_function int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout) { if (__bos (__fds) != (__SIZE_TYPE__) -1) { if (! __builtin_constant_p (__nfds)) return __poll_chk (__fds, __nfds, __timeout, __bos (__fds)); else if (__bos (__fds) / sizeof (*__fds) < __nfds) return __poll_chk_warn (__fds, __nfds, __timeout, __bos (__fds)); } return __poll_alias (__fds, __nfds, __timeout); } #ifdef __USE_GNU extern int __REDIRECT (__ppoll_alias, (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout, const __sigset_t *__ss), ppoll); extern int __ppoll_chk (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout, const __sigset_t *__ss, __SIZE_TYPE__ __fdslen); extern int __REDIRECT (__ppoll_chk_warn, (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout, const __sigset_t *__ss, __SIZE_TYPE__ __fdslen), __ppoll_chk) __warnattr ("ppoll called with fds buffer too small file nfds entries"); __fortify_function int ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout, const __sigset_t *__ss) { if (__bos (__fds) != (__SIZE_TYPE__) -1) { if (! __builtin_constant_p (__nfds)) return __ppoll_chk (__fds, __nfds, __timeout, __ss, __bos (__fds)); else if (__bos (__fds) / sizeof (*__fds) < __nfds) return __ppoll_chk_warn (__fds, __nfds, __timeout, __ss, __bos (__fds)); } return __ppoll_alias (__fds, __nfds, __timeout, __ss); } #endif __END_DECLS