arch/all-pc/boot/grub2-aros/grub-core/gnulib/sys_wait.in.h

   1 /* A POSIX-like <sys/wait.h>.
   2    Copyright (C) 2001-2003, 2005-2010 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, 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 Foundation,
  16    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  17
  18
  19 #ifndef _GL_SYS_WAIT_H
  20
  21 #if __GNUC__ >= 3
  22 @PRAGMA_SYSTEM_HEADER@
  23 #endif
  24
  25 /* The include_next requires a split double-inclusion guard.  */
  26 #if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
  27 # @INCLUDE_NEXT@ @NEXT_SYS_WAIT_H@
  28 #endif
  29
  30 #ifndef _GL_SYS_WAIT_H
  31 #define _GL_SYS_WAIT_H
  32
  33 #if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
  34 /* Unix API.  */
  35
  36 /* The following macros apply to an argument x, that is a status of a process,
  37    as returned by waitpid().
  38    On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and
  39    WTERMSIG are bits 7..0, while BeOS uses the opposite.  Therefore programs
  40    have to use the abstract macros.  */
  41
  42 /* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x)
  43    is true.  */
  44 # ifndef WIFSIGNALED
  45 #  define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f)
  46 # endif
  47 # ifndef WIFEXITED
  48 #  define WIFEXITED(x) (WTERMSIG (x) == 0)
  49 # endif
  50 # ifndef WIFSTOPPED
  51 #  define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f)
  52 # endif
  53
  54 /* The termination signal. Only to be accessed if WIFSIGNALED(x) is true.  */
  55 # ifndef WTERMSIG
  56 #  define WTERMSIG(x) ((x) & 0x7f)
  57 # endif
  58
  59 /* The exit status. Only to be accessed if WIFEXITED(x) is true.  */
  60 # ifndef WEXITSTATUS
  61 #  define WEXITSTATUS(x) (((x) >> 8) & 0xff)
  62 # endif
  63
  64 /* True if the process dumped core.  Not standardized by POSIX.  */
  65 # ifndef WCOREDUMP
  66 #  define WCOREDUMP(x) ((x) & 0x80)
  67 # endif
  68
  69 # ifdef __cplusplus
  70 extern "C" {
  71 # endif
  72
  73 /* Declarations of functions.  */
  74
  75 # ifdef __cplusplus
  76 }
  77 # endif
  78
  79 #else
  80 /* Native Windows API.  */
  81
  82 # include <process.h>
  83
  84 # define waitpid(pid,statusp,options) _cwait (statusp, pid, WAIT_CHILD)
  85
  86 /* The following macros apply to an argument x, that is a status of a process,
  87    as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess().
  88    This value is simply an 'int', not composed of bit fields.  */
  89
  90 /* When an unhandled fatal signal terminates a process, the exit code is 3.  */
  91 # define WIFSIGNALED(x) ((x) == 3)
  92 # define WIFEXITED(x) ((x) != 3)
  93 # define WIFSTOPPED(x) 0
  94
  95 /* The signal that terminated a process is not known posthum.  */
  96 # define WTERMSIG(x) SIGTERM
  97
  98 # define WEXITSTATUS(x) (x)
  99
 100 /* There are no core dumps.  */
 101 # define WCOREDUMP(x) 0
 102
 103 #endif
 104
 105 #endif /* _GL_SYS_WAIT_H */
 106 #endif /* _GL_SYS_WAIT_H */