62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* Define wait system call interface for Emacs.
|
|
Copyright (C) 1993-1995, 2000-2022 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Emacs.
|
|
|
|
GNU Emacs is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or (at
|
|
your option) any later version.
|
|
|
|
GNU Emacs is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Define the structure that the wait system call stores.
|
|
On many systems, there is a structure defined for this.
|
|
But on vanilla-ish USG systems there is not. */
|
|
|
|
#ifndef EMACS_SYSWAIT_H
|
|
#define EMACS_SYSWAIT_H
|
|
|
|
#include <sys/types.h>
|
|
|
|
#ifdef HAVE_SYS_WAIT_H /* We have sys/wait.h with POSIXish definitions. */
|
|
#include <sys/wait.h>
|
|
#endif /* !HAVE_SYS_WAIT_H */
|
|
|
|
#ifndef WCONTINUED
|
|
#define WCONTINUED 8
|
|
#endif
|
|
|
|
#ifndef WCOREDUMP /* not POSIX */
|
|
#define WCOREDUMP(status) ((status) & 0x80)
|
|
#endif
|
|
#ifndef WEXITSTATUS
|
|
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
|
|
#endif
|
|
#ifndef WIFEXITED
|
|
#define WIFEXITED(status) (WTERMSIG(status) == 0)
|
|
#endif
|
|
#ifndef WIFSTOPPED
|
|
#define WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
|
|
#endif
|
|
#ifndef WIFSIGNALED
|
|
#define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status))
|
|
#endif
|
|
#ifndef WSTOPSIG
|
|
#define WSTOPSIG(status) WEXITSTATUS(status)
|
|
#endif
|
|
#ifndef WTERMSIG
|
|
#define WTERMSIG(status) ((status) & 0x7f)
|
|
#endif
|
|
|
|
/* Defined in sysdep.c. */
|
|
extern bool wait_for_termination (pid_t, int *, bool);
|
|
extern pid_t child_status_changed (pid_t, int *, int);
|
|
|
|
#endif /* EMACS_SYSWAIT_H */
|