lib/wait.h

   1 /* wait.h -- POSIX macros for evaluating exit statuses
   2    Copyright (C) 1990 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  17
  18 #include <sys/types.h>          /* For pid_t. */
  19 #if HAVE_SYS_WAIT_H
  20 #include <sys/wait.h>
  21 #endif
  22
  23 #ifndef WIFSTOPPED
  24 #define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
  25 #endif
  26 #ifndef WIFSIGNALED
  27 #define WIFSIGNALED(w) (((w) & 0xff) != 0x7f && ((w) & 0xff) != 0)
  28 #endif
  29 #ifndef WIFEXITED
  30 #define WIFEXITED(w) (((w) & 0xff) == 0)
  31 #endif
  32
  33 #ifndef WSTOPSIG
  34 #define WSTOPSIG(w) (((w) >> 8) & 0xff)
  35 #endif
  36 #ifndef WTERMSIG
  37 #define WTERMSIG(w) ((w) & 0x7f)
  38 #endif
  39 #ifndef WEXITSTATUS
  40 #define WEXITSTATUS(w) (((w) >> 8) & 0xff)
  41 #endif