sysdeps/unix/sysv/linux/fatal-prepare.h

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <pthread.h>
  20
  21 /* We have to completely disable cancellation.  assert() must not be a
  22    cancellation point but the implementation uses write() etc.  */
  23 #ifdef SHARED
  24 # include <pthread-functions.h>
  25 # define FATAL_PREPARE \
  26   {                                                                           \
  27     int (*fp) (int, int *);                                                   \
  28     fp = __libc_pthread_functions.ptr_pthread_setcancelstate;                 \
  29     if (fp != NULL)                                                           \
  30       fp (PTHREAD_CANCEL_DISABLE, NULL);                                      \
  31   }
  32 #else
  33 # pragma weak pthread_setcancelstate
  34 # define FATAL_PREPARE \
  35   {                                                                           \
  36     if (pthread_setcancelstate != NULL)                                       \
  37       pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL);                  \
  38   }
  39 #endif