1 /* A POSIX-like <sys/wait.h>.
2 Copyright (C) 2001-2003, 2005-2011 Free Software Foundation, Inc.
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 2, or (at your option)
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.
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. */
19 #ifndef _@GUARD_PREFIX@_SYS_WAIT_H
22 @PRAGMA_SYSTEM_HEADER@
26 /* The include_next requires a split double-inclusion guard. */
27 #if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
28 # @INCLUDE_NEXT@ @NEXT_SYS_WAIT_H@
31 #ifndef _@GUARD_PREFIX@_SYS_WAIT_H
32 #define _@GUARD_PREFIX@_SYS_WAIT_H
35 #include <sys/types.h>
38 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
40 /* The definition of _GL_WARN_ON_USE is copied here. */
43 #if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
46 /* The following macros apply to an argument x, that is a status of a process,
47 as returned by waitpid().
48 On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and
49 WTERMSIG are bits 7..0, while BeOS uses the opposite. Therefore programs
50 have to use the abstract macros. */
52 /* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x)
55 # define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f)
58 # define WIFEXITED(x) (WTERMSIG (x) == 0)
61 # define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f)
64 /* The termination signal. Only to be accessed if WIFSIGNALED(x) is true. */
66 # define WTERMSIG(x) ((x) & 0x7f)
69 /* The exit status. Only to be accessed if WIFEXITED(x) is true. */
71 # define WEXITSTATUS(x) (((x) >> 8) & 0xff)
74 /* The stopping signal. Only to be accessed if WIFSTOPPED(x) is true. */
76 # define WSTOPSIG(x) (((x) >> 8) & 0x7f)
79 /* True if the process dumped core. Not standardized by POSIX. */
81 # define WCOREDUMP(x) ((x) & 0x80)
85 /* Native Windows API. */
87 # include <signal.h> /* for SIGTERM */
89 /* The following macros apply to an argument x, that is a status of a process,
90 as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess().
91 This value is simply an 'int', not composed of bit fields. */
93 /* When an unhandled fatal signal terminates a process, the exit code is 3. */
94 # define WIFSIGNALED(x) ((x) == 3)
95 # define WIFEXITED(x) ((x) != 3)
96 # define WIFSTOPPED(x) 0
98 /* The signal that terminated a process is not known posthum. */
99 # define WTERMSIG(x) SIGTERM
101 # define WEXITSTATUS(x) (x)
103 /* There are no stopping signals. */
104 # define WSTOPSIG(x) 0
106 /* There are no core dumps. */
107 # define WCOREDUMP(x) 0
112 /* Declarations of functions. */
115 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
116 _GL_FUNCDECL_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options));
118 _GL_CXXALIAS_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options));
119 _GL_CXXALIASWARN (waitpid);
120 #elif defined GNULIB_POSIXCHECK
122 # if HAVE_RAW_DECL_WAITPID
123 _GL_WARN_ON_USE (waitpid, "waitpid is unportable - "
124 "use gnulib module sys_wait for portability");
129 #endif /* _@GUARD_PREFIX@_SYS_WAIT_H */
130 #endif /* _@GUARD_PREFIX@_SYS_WAIT_H */