/* posixwait.h -- job control definitions from POSIX 1003.1 */ /* Copyright (C) 1997 Free Software Foundation, Inc. This file is part of GNU Bash, the Bourne Again SHell. Bash 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 2, or (at your option) any later version. Bash 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 Bash; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ #if !defined (_POSIXWAIT_H_) # define _POSIXWAIT_H_ /* If _POSIX_VERSION is not defined, we assume that <sys/wait.h> defines a `union wait' and various macros used to manipulate it. Look in unionwait.h for the things we expect to find. */ #if defined (HAVE_SYS_WAIT_H) # include <sys/wait.h> #else /* !HAVE_SYS_WAIT_H */ # if !defined (_POSIX_VERSION) # include "unionwait.h" # endif #endif /* !HAVE_SYS_WAIT_H */ /* How to get the status of a job. For Posix, this is just an int, but for other systems we have to crack the union wait. */ #if !defined (_POSIX_VERSION) typedef union wait WAIT; # define WSTATUS(t) (t.w_status) #else /* _POSIX_VERSION */ typedef int WAIT; # define WSTATUS(t) (t) #endif /* _POSIX_VERSION */ /* Make sure that parameters to wait3 are defined. */ #if !defined (WNOHANG) # define WNOHANG 1 # define WUNTRACED 2 #endif /* WNOHANG */ /* More Posix P1003.1 definitions. In the POSIX versions, the parameter is passed as an `int', in the non-POSIX version, as `union wait'. */ #if defined (_POSIX_VERSION) # if !defined (WSTOPSIG) # define WSTOPSIG(s) ((s) >> 8) # endif /* !WSTOPSIG */ # if !defined (WTERMSIG) # define WTERMSIG(s) ((s) & 0177) # endif /* !WTERMSIG */ # if !defined (WEXITSTATUS) # define WEXITSTATUS(s) ((s) >> 8) # endif /* !WEXITSTATUS */ # if !defined (WIFSTOPPED) # define WIFSTOPPED(s) (((s) & 0177) == 0177) # endif /* !WIFSTOPPED */ # if !defined (WIFEXITED) # define WIFEXITED(s) (((s) & 0377) == 0) # endif /* !WIFEXITED */ # if !defined (WIFSIGNALED) # define WIFSIGNALED(s) (!WIFSTOPPED(s) && !WIFEXITED(s)) # endif /* !WIFSIGNALED */ # if !defined (WIFCORED) # define WIFCORED(s) ((s) & 0200) # endif /* !WIFCORED */ #else /* !_POSIX_VERSION */ # if !defined (WSTOPSIG) # define WSTOPSIG(s) ((s).w_stopsig) # endif /* !WSTOPSIG */ # if !defined (WTERMSIG) # define WTERMSIG(s) ((s).w_termsig) # endif /* !WTERMSIG */ # if !defined (WEXITSTATUS) # define WEXITSTATUS(s) ((s).w_retcode) # endif /* !WEXITSTATUS */ # if !defined (WIFCORED) # define WIFCORED(s) ((s).w_coredump) # endif /* !WIFCORED */ #endif /* !_POSIX_VERSION */ #endif /* !_POSIXWAIT_H_ */