2012-01-08 17:55:32 +01:00
|
|
|
/* Checking macros for poll functions.
|
2017-01-01 01:14:16 +01:00
|
|
|
Copyright (C) 2012-2017 Free Software Foundation, Inc.
|
2012-01-08 17:55:32 +01:00
|
|
|
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
|
2012-02-10 00:18:22 +01:00
|
|
|
License along with the GNU C Library; if not, see
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
2012-01-08 17:55:32 +01:00
|
|
|
|
|
|
|
#ifndef _SYS_POLL_H
|
|
|
|
# error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead."
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2012-01-09 03:57:15 +01:00
|
|
|
__BEGIN_DECLS
|
|
|
|
|
2012-01-08 17:55:32 +01:00
|
|
|
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");
|
|
|
|
|
2012-04-29 15:34:20 +02:00
|
|
|
__fortify_function int
|
2012-01-08 17:55:32 +01:00
|
|
|
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");
|
|
|
|
|
2012-04-29 15:34:20 +02:00
|
|
|
__fortify_function int
|
2012-01-08 17:55:32 +01:00
|
|
|
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
|
2012-01-09 03:57:15 +01:00
|
|
|
|
|
|
|
__END_DECLS
|