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/* A POSIX-like <sys/wait.h>.
Copyright (C) 2001-2003, 2005-2010 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _GL_SYS_WAIT_H
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
/* The include_next requires a split double-inclusion guard. */
#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
# @INCLUDE_NEXT@ @NEXT_SYS_WAIT_H@
#endif
#ifndef _GL_SYS_WAIT_H
#define _GL_SYS_WAIT_H
#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
/* Unix API. */
/* The following macros apply to an argument x, that is a status of a process,
as returned by waitpid().
On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and
WTERMSIG are bits 7..0, while BeOS uses the opposite. Therefore programs
have to use the abstract macros. */
/* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x)
is true. */
# ifndef WIFSIGNALED
# define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f)
# endif
# ifndef WIFEXITED
# define WIFEXITED(x) (WTERMSIG (x) == 0)
# endif
# ifndef WIFSTOPPED
# define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f)
# endif
/* The termination signal. Only to be accessed if WIFSIGNALED(x) is true. */
# ifndef WTERMSIG
# define WTERMSIG(x) ((x) & 0x7f)
# endif
/* The exit status. Only to be accessed if WIFEXITED(x) is true. */
# ifndef WEXITSTATUS
# define WEXITSTATUS(x) (((x) >> 8) & 0xff)
# endif
/* True if the process dumped core. Not standardized by POSIX. */
# ifndef WCOREDUMP
# define WCOREDUMP(x) ((x) & 0x80)
# endif
# ifdef __cplusplus
extern "C" {
# endif
/* Declarations of functions. */
# ifdef __cplusplus
}
# endif
#else
/* Native Windows API. */
# include <process.h>
# define waitpid(pid,statusp,options) _cwait (statusp, pid, WAIT_CHILD)
/* The following macros apply to an argument x, that is a status of a process,
as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess().
This value is simply an 'int', not composed of bit fields. */
/* When an unhandled fatal signal terminates a process, the exit code is 3. */
# define WIFSIGNALED(x) ((x) == 3)
# define WIFEXITED(x) ((x) != 3)
# define WIFSTOPPED(x) 0
/* The signal that terminated a process is not known posthum. */
# define WTERMSIG(x) SIGTERM
# define WEXITSTATUS(x) (x)
/* There are no core dumps. */
# define WCOREDUMP(x) 0
#endif
#endif /* _GL_SYS_WAIT_H */
#endif /* _GL_SYS_WAIT_H */
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