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