mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
b894c2ea7e
* sysdeps/unix/sysv/linux/x86_64/sigsuspend.c: File removed. * sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c: File removed. * sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: File removed. * sysdeps/unix/sysv/linux/not-cancel.h (pause_not_cancel): New macro. (nanosleep_not_cancel): New macro. (sigsuspend_not_cancel): new macro. * sysdeps/unix/sysv/linux/sigsuspend.c [__ASSUME_REALTIME_SIGNALS] (do_sigsuspend): Define as inline. (__sigsuspend): Always use do_sigsuspend. [! NO_CANCELLATION] (__sigsuspend_nocancel): New function. * include/signal.h: Declare __sigsuspend_nocancel. * sysdeps/posix/pause.c [! NO_CANCELLATION] (__pause_nocancel): New function. * include/unistd.h (__pause_nocancel): Add attribute_hidden. * include/time.h (__nanosleep_nocancel): Likewise.
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/* 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sys/types.h>
|
|
#include <sysdep.h>
|
|
|
|
/* Uncancelable open. */
|
|
#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))
|
|
|
|
/* 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)
|
|
|
|
/* 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))
|
|
|
|
/* Uncancelable write. */
|
|
#define write_not_cancel(fd, buf, n) \
|
|
INLINE_SYSCALL (write, 3, (fd), (buf), (n))
|
|
|
|
/* 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)
|
|
|
|
/* Uncancelable waitpid. */
|
|
#ifdef __NR_waitpid
|
|
# define waitpid_not_cancel(pid, stat_loc, options) \
|
|
INLINE_SYSCALL (waitpid, 3, pid, stat_loc, options)
|
|
#else
|
|
# define waitpid_not_cancel(pid, stat_loc, options) \
|
|
INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)
|
|
#endif
|
|
|
|
/* Uncancelable pause. */
|
|
#ifdef __NR_pause
|
|
# define pause_not_cancel() \
|
|
INLINE_SYSCALL (pause, 0)
|
|
#else
|
|
# 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
|
|
|
|
/* Uncancelable sigsuspend. */
|
|
#define sigsuspend_not_cancel(set) \
|
|
__sigsuspend_nocancel (set)
|