132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
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/* A POSIX-like <sys/wait.h>.
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Copyright (C) 2001-2003, 2005-2021 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#ifndef _@GUARD_PREFIX@_SYS_WAIT_H
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#if __GNUC__ >= 3
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@PRAGMA_SYSTEM_HEADER@
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#endif
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@PRAGMA_COLUMNS@
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/* The include_next requires a split double-inclusion guard. */
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#if !(defined _WIN32 && ! defined __CYGWIN__)
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# @INCLUDE_NEXT@ @NEXT_SYS_WAIT_H@
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#endif
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#ifndef _@GUARD_PREFIX@_SYS_WAIT_H
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#define _@GUARD_PREFIX@_SYS_WAIT_H
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/* Get pid_t. */
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#include <sys/types.h>
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* The definition of _GL_WARN_ON_USE is copied here. */
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#if !(defined _WIN32 && ! defined __CYGWIN__)
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/* Unix API. */
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/* The following macros apply to an argument x, that is a status of a process,
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as returned by waitpid().
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On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and
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WTERMSIG are bits 7..0, while BeOS uses the opposite. Therefore programs
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have to use the abstract macros. */
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/* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x)
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is true. */
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# ifndef WIFSIGNALED
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# define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f)
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# endif
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# ifndef WIFEXITED
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# define WIFEXITED(x) (WTERMSIG (x) == 0)
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# endif
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# ifndef WIFSTOPPED
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# define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f)
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# endif
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/* The termination signal. Only to be accessed if WIFSIGNALED(x) is true. */
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# ifndef WTERMSIG
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# define WTERMSIG(x) ((x) & 0x7f)
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# endif
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/* The exit status. Only to be accessed if WIFEXITED(x) is true. */
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# ifndef WEXITSTATUS
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# define WEXITSTATUS(x) (((x) >> 8) & 0xff)
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# endif
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/* The stopping signal. Only to be accessed if WIFSTOPPED(x) is true. */
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# ifndef WSTOPSIG
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# define WSTOPSIG(x) (((x) >> 8) & 0x7f)
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# endif
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/* True if the process dumped core. Not standardized by POSIX. */
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# ifndef WCOREDUMP
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# define WCOREDUMP(x) ((x) & 0x80)
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# endif
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#else
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/* Native Windows API. */
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# include <signal.h> /* for SIGTERM */
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/* The following macros apply to an argument x, that is a status of a process,
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as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess().
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This value is simply an 'int', not composed of bit fields. */
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/* When an unhandled fatal signal terminates a process, the exit code is 3. */
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# define WIFSIGNALED(x) ((x) == 3)
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# define WIFEXITED(x) ((x) != 3)
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# define WIFSTOPPED(x) 0
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/* The signal that terminated a process is not known posthum. */
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# define WTERMSIG(x) SIGTERM
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# define WEXITSTATUS(x) (x)
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/* There are no stopping signals. */
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# define WSTOPSIG(x) 0
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/* There are no core dumps. */
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# define WCOREDUMP(x) 0
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#endif
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/* Declarations of functions. */
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#if @GNULIB_WAITPID@
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# if defined _WIN32 && ! defined __CYGWIN__
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_GL_FUNCDECL_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options));
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# endif
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/* Need to cast, because on Cygwin, the second parameter is
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__wait_status_ptr_t statusp. */
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_GL_CXXALIAS_SYS_CAST (waitpid, pid_t, (pid_t pid, int *statusp, int options));
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_GL_CXXALIASWARN (waitpid);
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#elif defined GNULIB_POSIXCHECK
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# undef waitpid
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# if HAVE_RAW_DECL_WAITPID
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_GL_WARN_ON_USE (waitpid, "waitpid is unportable - "
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"use gnulib module sys_wait for portability");
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# endif
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#endif
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#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */
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#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */
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