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

   1 /* Copyright (C) 2003-2015 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <pthread.h>
  19
  20 /* We have to completely disable cancellation.  assert() must not be a
  21    cancellation point but the implementation uses write() etc.  */
  22 #ifdef SHARED
  23 # include <pthread-functions.h>
  24 # define FATAL_PREPARE \
  25   {                                                                           \
  26     if (__libc_pthread_functions_init)                                        \
  27       PTHFCT_CALL (ptr_pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE,       \
  28                                                 NULL));                       \
  29   }
  30 #else
  31 # pragma weak pthread_setcancelstate
  32 # define FATAL_PREPARE \
  33   {                                                                           \
  34     if (pthread_setcancelstate != NULL)                                       \
  35       pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL);                  \
  36   }
  37 #endif