105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* A POSIX-like <sys/wait.h>. 205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Copyright (C) 2001-2003, 2005-2012 Free Software Foundation, Inc. 305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 405436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is free software; you can redistribute it and/or modify 505436638acc7c010349a69c3395f1a57c642dc62Ying Wang it under the terms of the GNU General Public License as published by 605436638acc7c010349a69c3395f1a57c642dc62Ying Wang the Free Software Foundation; either version 3, or (at your option) 705436638acc7c010349a69c3395f1a57c642dc62Ying Wang any later version. 805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 905436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is distributed in the hope that it will be useful, 1005436638acc7c010349a69c3395f1a57c642dc62Ying Wang but WITHOUT ANY WARRANTY; without even the implied warranty of 1105436638acc7c010349a69c3395f1a57c642dc62Ying Wang MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1205436638acc7c010349a69c3395f1a57c642dc62Ying Wang GNU General Public License for more details. 1305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1405436638acc7c010349a69c3395f1a57c642dc62Ying Wang You should have received a copy of the GNU General Public License 1505436638acc7c010349a69c3395f1a57c642dc62Ying Wang along with this program; if not, see <http://www.gnu.org/licenses/>. */ 1605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _@GUARD_PREFIX@_SYS_WAIT_H 1905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 2005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if __GNUC__ >= 3 2105436638acc7c010349a69c3395f1a57c642dc62Ying Wang@PRAGMA_SYSTEM_HEADER@ 2205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 2305436638acc7c010349a69c3395f1a57c642dc62Ying Wang@PRAGMA_COLUMNS@ 2405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 2505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The include_next requires a split double-inclusion guard. */ 2605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) 2705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# @INCLUDE_NEXT@ @NEXT_SYS_WAIT_H@ 2805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 2905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#ifndef _@GUARD_PREFIX@_SYS_WAIT_H 3105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#define _@GUARD_PREFIX@_SYS_WAIT_H 3205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get pid_t. */ 3405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#include <sys/types.h> 3505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 3805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definition of _GL_WARN_ON_USE is copied here. */ 4005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) 4305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Unix API. */ 4405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The following macros apply to an argument x, that is a status of a process, 4605436638acc7c010349a69c3395f1a57c642dc62Ying Wang as returned by waitpid(). 4705436638acc7c010349a69c3395f1a57c642dc62Ying Wang On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and 4805436638acc7c010349a69c3395f1a57c642dc62Ying Wang WTERMSIG are bits 7..0, while BeOS uses the opposite. Therefore programs 4905436638acc7c010349a69c3395f1a57c642dc62Ying Wang have to use the abstract macros. */ 5005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 5105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x) 5205436638acc7c010349a69c3395f1a57c642dc62Ying Wang is true. */ 5305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WIFSIGNALED 5405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f) 5505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 5605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WIFEXITED 5705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIFEXITED(x) (WTERMSIG (x) == 0) 5805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 5905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WIFSTOPPED 6005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f) 6105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 6205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 6305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The termination signal. Only to be accessed if WIFSIGNALED(x) is true. */ 6405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WTERMSIG 6505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WTERMSIG(x) ((x) & 0x7f) 6605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 6705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 6805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The exit status. Only to be accessed if WIFEXITED(x) is true. */ 6905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WEXITSTATUS 7005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WEXITSTATUS(x) (((x) >> 8) & 0xff) 7105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 7205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 7305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The stopping signal. Only to be accessed if WIFSTOPPED(x) is true. */ 7405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WSTOPSIG 7505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WSTOPSIG(x) (((x) >> 8) & 0x7f) 7605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 7705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 7805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* True if the process dumped core. Not standardized by POSIX. */ 7905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef WCOREDUMP 8005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WCOREDUMP(x) ((x) & 0x80) 8105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 8205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 8405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Native Windows API. */ 8505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <signal.h> /* for SIGTERM */ 8705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The following macros apply to an argument x, that is a status of a process, 8905436638acc7c010349a69c3395f1a57c642dc62Ying Wang as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess(). 9005436638acc7c010349a69c3395f1a57c642dc62Ying Wang This value is simply an 'int', not composed of bit fields. */ 9105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 9205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* When an unhandled fatal signal terminates a process, the exit code is 3. */ 9305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIFSIGNALED(x) ((x) == 3) 9405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIFEXITED(x) ((x) != 3) 9505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIFSTOPPED(x) 0 9605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 9705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The signal that terminated a process is not known posthum. */ 9805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WTERMSIG(x) SIGTERM 9905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WEXITSTATUS(x) (x) 10105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* There are no stopping signals. */ 10305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WSTOPSIG(x) 0 10405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* There are no core dumps. */ 10605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WCOREDUMP(x) 0 10705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 10905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 11005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 11105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Declarations of functions. */ 11205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 11305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if @GNULIB_WAITPID@ 11405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ 11505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options)); 11605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 11705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options)); 11805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (waitpid); 11905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#elif defined GNULIB_POSIXCHECK 12005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef waitpid 12105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if HAVE_RAW_DECL_WAITPID 12205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (waitpid, "waitpid is unportable - " 12305436638acc7c010349a69c3395f1a57c642dc62Ying Wang "use gnulib module sys_wait for portability"); 12405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 12505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 12605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 12705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 12805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */ 12905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */ 130