1/* A POSIX-like <sys/wait.h>. 2 Copyright (C) 2001-2003, 2005-2012 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, see <http://www.gnu.org/licenses/>. */ 16 17 18#ifndef _@GUARD_PREFIX@_SYS_WAIT_H 19 20#if __GNUC__ >= 3 21@PRAGMA_SYSTEM_HEADER@ 22#endif 23@PRAGMA_COLUMNS@ 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 _@GUARD_PREFIX@_SYS_WAIT_H 31#define _@GUARD_PREFIX@_SYS_WAIT_H 32 33/* Get pid_t. */ 34#include <sys/types.h> 35 36 37/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 38 39/* The definition of _GL_WARN_ON_USE is copied here. */ 40 41 42#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) 43/* Unix API. */ 44 45/* The following macros apply to an argument x, that is a status of a process, 46 as returned by waitpid(). 47 On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and 48 WTERMSIG are bits 7..0, while BeOS uses the opposite. Therefore programs 49 have to use the abstract macros. */ 50 51/* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x) 52 is true. */ 53# ifndef WIFSIGNALED 54# define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f) 55# endif 56# ifndef WIFEXITED 57# define WIFEXITED(x) (WTERMSIG (x) == 0) 58# endif 59# ifndef WIFSTOPPED 60# define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f) 61# endif 62 63/* The termination signal. Only to be accessed if WIFSIGNALED(x) is true. */ 64# ifndef WTERMSIG 65# define WTERMSIG(x) ((x) & 0x7f) 66# endif 67 68/* The exit status. Only to be accessed if WIFEXITED(x) is true. */ 69# ifndef WEXITSTATUS 70# define WEXITSTATUS(x) (((x) >> 8) & 0xff) 71# endif 72 73/* The stopping signal. Only to be accessed if WIFSTOPPED(x) is true. */ 74# ifndef WSTOPSIG 75# define WSTOPSIG(x) (((x) >> 8) & 0x7f) 76# endif 77 78/* True if the process dumped core. Not standardized by POSIX. */ 79# ifndef WCOREDUMP 80# define WCOREDUMP(x) ((x) & 0x80) 81# endif 82 83#else 84/* Native Windows API. */ 85 86# include <signal.h> /* for SIGTERM */ 87 88/* The following macros apply to an argument x, that is a status of a process, 89 as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess(). 90 This value is simply an 'int', not composed of bit fields. */ 91 92/* When an unhandled fatal signal terminates a process, the exit code is 3. */ 93# define WIFSIGNALED(x) ((x) == 3) 94# define WIFEXITED(x) ((x) != 3) 95# define WIFSTOPPED(x) 0 96 97/* The signal that terminated a process is not known posthum. */ 98# define WTERMSIG(x) SIGTERM 99 100# define WEXITSTATUS(x) (x) 101 102/* There are no stopping signals. */ 103# define WSTOPSIG(x) 0 104 105/* There are no core dumps. */ 106# define WCOREDUMP(x) 0 107 108#endif 109 110 111/* Declarations of functions. */ 112 113#if @GNULIB_WAITPID@ 114# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ 115_GL_FUNCDECL_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options)); 116# endif 117_GL_CXXALIAS_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options)); 118_GL_CXXALIASWARN (waitpid); 119#elif defined GNULIB_POSIXCHECK 120# undef waitpid 121# if HAVE_RAW_DECL_WAITPID 122_GL_WARN_ON_USE (waitpid, "waitpid is unportable - " 123 "use gnulib module sys_wait for portability"); 124# endif 125#endif 126 127 128#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */ 129#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */ 130