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/* Uncancelable versions of cancelable interfaces. Linux version.
Copyright (C) 2003, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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/>. */
#include <sys/types.h>
#include <sysdep.h>
#ifdef NOT_IN_libc
/* Uncancelable open. */
#if defined __NR_openat && !defined __NR_open
#define open_not_cancel(name, flags, mode) \
INLINE_SYSCALL (openat, 4, AT_FDCWD, (const char *) (name), (flags), (mode))
#define open_not_cancel_2(name, flags) \
INLINE_SYSCALL (openat, 3, AT_FDCWD, (const char *) (name), (flags))
#else
#define open_not_cancel(name, flags, mode) \
INLINE_SYSCALL (open, 3, (const char *) (name), (flags), (mode))
#define open_not_cancel_2(name, flags) \
INLINE_SYSCALL (open, 2, (const char *) (name), (flags))
#endif
#if 0
/* Uncancelable openat. */
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
extern int __openat_nocancel (int fd, const char *fname, int oflag,
mode_t mode) attribute_hidden;
extern int __openat64_nocancel (int fd, const char *fname, int oflag,
mode_t mode) attribute_hidden;
#else
# define __openat_nocancel(fd, fname, oflag, mode) \
openat (fd, fname, oflag, mode)
# define __openat64_nocancel(fd, fname, oflag, mode) \
openat64 (fd, fname, oflag, mode)
#endif
#define openat_not_cancel(fd, fname, oflag, mode) \
__openat_nocancel (fd, fname, oflag, mode)
#define openat_not_cancel_3(fd, fname, oflag) \
__openat_nocancel (fd, fname, oflag, 0)
#define openat64_not_cancel(fd, fname, oflag, mode) \
__openat64_nocancel (fd, fname, oflag, mode)
#define openat64_not_cancel_3(fd, fname, oflag) \
__openat64_nocancel (fd, fname, oflag, 0)
#endif
/* Uncancelable close. */
#define close_not_cancel(fd) \
INLINE_SYSCALL (close, 1, fd)
#define close_not_cancel_no_status(fd) \
(void) ({ INTERNAL_SYSCALL_DECL (err); \
INTERNAL_SYSCALL (close, err, 1, (fd)); })
/* Uncancelable read. */
#define read_not_cancel(fd, buf, n) \
INLINE_SYSCALL (read, 3, (fd), (buf), (n))
#if 0
/* Uncancelable writev. */
#define writev_not_cancel_no_status(fd, iov, n) \
(void) ({ INTERNAL_SYSCALL_DECL (err); \
INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); })
/* Uncancelable fcntl. */
#define fcntl_not_cancel(fd, cmd, val) \
__fcntl_nocancel (fd, cmd, val)
#endif
/* Uncancelable pause. */
#ifdef __NR_pause
# define pause_not_cancel() \
INLINE_SYSCALL (pause, 0)
#else
# include <unistd.h>
extern __typeof(pause) __pause_nocancel;
# define pause_not_cancel() \
__pause_nocancel ()
#endif
/* Uncancelable nanosleep. */
#ifdef __NR_nanosleep
# define nanosleep_not_cancel(requested_time, remaining) \
INLINE_SYSCALL (nanosleep, 2, requested_time, remaining)
/*#else
# define nanosleep_not_cancel(requested_time, remaining) \
__nanosleep_nocancel (requested_time, remaining)*/
#endif
#if 0
/* Uncancelable sigsuspend. */
#define sigsuspend_not_cancel(set) \
__sigsuspend_nocancel (set)
#endif
#elif !defined NOT_IN_libc
#include <cancel.h>
#include <fcntl.h>
#include <unistd.h>
#define open_not_cancel(name, flags, mode) \
__NC(open)(name, flags, mode)
#define open_not_cancel_2(name, flags) \
__NC(open2)(name, flags)
#define close_not_cancel(fd) \
__NC(close)(fd)
#define close_not_cancel_no_status(fd) \
__close_nocancel_no_status(fd)
#define read_not_cancel(fd, buf, n) \
__NC(read)(fd, buf, n)
#define write_not_cancel(fd, buf, n) \
__NC(write)(fd, buf, n)
#define fcntl_not_cancel(fd, cmd, val) \
__NC(fcntl)(fd, cmd, val)
#endif
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