sysdeps/unix/sysv/linux/not-cancel.h

   1 /* Uncancelable versions of cancelable interfaces.  Linux version.
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <sysdep.h>
  22
  23 /* Uncancelable open.  */
  24 #define open_not_cancel(name, flags, mode) \
  25    INLINE_SYSCALL (open, 3, (const char *) (name), (flags), (mode))
  26 #define open_not_cancel_2(name, flags) \
  27    INLINE_SYSCALL (open, 2, (const char *) (name), (flags))
  28
  29 /* Uncancelable close.  */
  30 #define close_not_cancel(fd) \
  31   INLINE_SYSCALL (close, 1, fd)
  32 #define close_not_cancel_no_status(fd) \
  33   (void) ({ INTERNAL_SYSCALL_DECL (err);                                      \
  34             INTERNAL_SYSCALL (close, err, 1, (fd)); })
  35
  36 /* Uncancelable read.  */
  37 #define read_not_cancel(fd, buf, n) \
  38   INLINE_SYSCALL (read, 3, (fd), (buf), (n))
  39
  40 /* Uncancelable write.  */
  41 #define write_not_cancel(fd, buf, n) \
  42   INLINE_SYSCALL (write, 3, (fd), (buf), (n))
  43
  44 /* Uncancelable writev.  */
  45 #define writev_not_cancel_no_status(fd, iov, n) \
  46   (void) ({ INTERNAL_SYSCALL_DECL (err);                                      \
  47             INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); })
  48
  49 /* Uncancelable fcntl.  */
  50 #define fcntl_not_cancel(fd, cmd, val) \
  51   __fcntl_nocancel (fd, cmd, val)
  52
  53 /* Uncancelable waitpid.  */
  54 #ifdef __NR_waitpid
  55 # define waitpid_not_cancel(pid, stat_loc, options) \
  56   INLINE_SYSCALL (waitpid, 3, pid, stat_loc, options)
  57 #else
  58 # define waitpid_not_cancel(pid, stat_loc, options) \
  59   INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)
  60 #endif