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 3 of the License, or
   7    (at your option) 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, see <http://www.gnu.org/licenses/>.
  16 */
  17 #include <sys/types.h>          /* For pid_t. */
  18 #if HAVE_SYS_WAIT_H
  19 #include <sys/wait.h>
  20 #endif
  21
  22 #ifndef WIFSTOPPED
  23 #define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
  24 #endif
  25 #ifndef WIFSIGNALED
  26 #define WIFSIGNALED(w) (((w) & 0xff) != 0x7f && ((w) & 0xff) != 0)
  27 #endif
  28 #ifndef WIFEXITED
  29 #define WIFEXITED(w) (((w) & 0xff) == 0)
  30 #endif
  31
  32 #ifndef WSTOPSIG
  33 #define WSTOPSIG(w) (((w) >> 8) & 0xff)
  34 #endif
  35 #ifndef WTERMSIG
  36 #define WTERMSIG(w) ((w) & 0x7f)
  37 #endif
  38 #ifndef WEXITSTATUS
  39 #define WEXITSTATUS(w) (((w) >> 8) & 0xff)
  40 #endif