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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.
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Copyright (C) 2003, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sys/types.h>
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#include <sysdep.h>
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/* Uncancelable open. */
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#define open_not_cancel(name, flags, mode) \
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INLINE_SYSCALL (open, 3, (const char *) (name), (flags), (mode))
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#define open_not_cancel_2(name, flags) \
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INLINE_SYSCALL (open, 2, (const char *) (name), (flags))
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/* Uncancelable openat. */
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#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
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extern int __openat_nocancel (int fd, const char *fname, int oflag,
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mode_t mode) attribute_hidden;
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extern int __openat64_nocancel (int fd, const char *fname, int oflag,
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mode_t mode) attribute_hidden;
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#else
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# define __openat_nocancel(fd, fname, oflag, mode) \
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openat (fd, fname, oflag, mode)
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# define __openat64_nocancel(fd, fname, oflag, mode) \
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openat64 (fd, fname, oflag, mode)
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#endif
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#define openat_not_cancel(fd, fname, oflag, mode) \
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__openat_nocancel (fd, fname, oflag, mode)
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#define openat_not_cancel_3(fd, fname, oflag) \
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__openat_nocancel (fd, fname, oflag, 0)
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#define openat64_not_cancel(fd, fname, oflag, mode) \
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__openat64_nocancel (fd, fname, oflag, mode)
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#define openat64_not_cancel_3(fd, fname, oflag) \
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__openat64_nocancel (fd, fname, oflag, 0)
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/* Uncancelable close. */
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#define close_not_cancel(fd) \
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INLINE_SYSCALL (close, 1, fd)
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#define close_not_cancel_no_status(fd) \
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(void) ({ INTERNAL_SYSCALL_DECL (err); \
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INTERNAL_SYSCALL (close, err, 1, (fd)); })
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/* Uncancelable read. */
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#define read_not_cancel(fd, buf, n) \
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INLINE_SYSCALL (read, 3, (fd), (buf), (n))
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/* Uncancelable write. */
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#define write_not_cancel(fd, buf, n) \
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INLINE_SYSCALL (write, 3, (fd), (buf), (n))
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/* Uncancelable writev. */
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#define writev_not_cancel_no_status(fd, iov, n) \
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(void) ({ INTERNAL_SYSCALL_DECL (err); \
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INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); })
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/* Uncancelable fcntl. */
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#define fcntl_not_cancel(fd, cmd, val) \
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__fcntl_nocancel (fd, cmd, val)
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/* Uncancelable waitpid. */
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#ifdef __NR_waitpid
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# define waitpid_not_cancel(pid, stat_loc, options) \
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INLINE_SYSCALL (waitpid, 3, pid, stat_loc, options)
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#else
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# define waitpid_not_cancel(pid, stat_loc, options) \
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INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)
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#endif
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/* Uncancelable pause. */
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#ifdef __NR_pause
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# define pause_not_cancel() \
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INLINE_SYSCALL (pause, 0)
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#else
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# define pause_not_cancel() \
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__pause_nocancel ()
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#endif
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/* Uncancelable nanosleep. */
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#ifdef __NR_nanosleep
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# define nanosleep_not_cancel(requested_time, remaining) \
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INLINE_SYSCALL (nanosleep, 2, requested_time, remaining)
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#else
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# define nanosleep_not_cancel(requested_time, remaining) \
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__nanosleep_nocancel (requested_time, remaining)
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#endif
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/* Uncancelable sigsuspend. */
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#define sigsuspend_not_cancel(set) \
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__sigsuspend_nocancel (set)
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