Mercurial > hg > xemacs-beta
view src/syswait.h @ 4502:8748a3f7ceb4
Handle varalias chains, custom variables in #'user-variable-p.
src/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* eval.c (Fuser_variable_p): Moved to symbols.c
* symbols.c (Fcustom_variable_p): Moved here from custom.el.
(user_variable_alias_check_fun): Mapper function used in
`user-variable-p'.
(Fuser_variable_p): Moved here from eval.c, to allow it to examine
the variable alias chain. Expanded to check each entry in the
variable alias chain for signs of being a user variable;
documentation updated, noting the differences between GNU's
behaviour and ours (ours is a little more sensible)
(map_varalias_chain): New.
Given a C function, call it at least once for each symbol in a
symbol's varalias chain, signalling an error if there's a cycle,
and returning immediately if the function returns something other
than Qzero.
(Fdefvaralias): Correct the use of the word "alias" in the
docstring and in the argument name. Motivate this in a
comment. Add support for a DOCSTRING argument, something GNU has
too, and document this
* gc.c (vars_of_gc): Start the docstring of
`garbage-collection-messages' with an asterisk, to indicate that
it's a user variable.
lisp/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* custom.el: Move #'custom-variable-p to C, since it's now called
from #'user-variable-p.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 23 Aug 2008 16:38:51 +0200 |
| parents | 04bc9d2f42c7 |
| children | 308d34e9f07d |
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/* Define wait system call interface for Emacs. Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. Copyright (C) 1995 Sun Microsystems, Inc. This file is part of XEmacs. XEmacs 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. XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef INCLUDED_syswait_h_ #define INCLUDED_syswait_h_ #include <sys/types.h> #ifdef HAVE_SYS_WAIT_H #include <sys/wait.h> #endif #ifdef UNO /* On glibc-based systems, these macros expand to forms containing __extension__, which Uno cannot understand. */ #undef WEXITSTATUS #undef WIFEXITED #undef WIFSTOPPED #undef WIFSIGNALED #undef WCOREDUMP #undef WTERMSIG #undef WSTOPSIG #undef WRETCODE #endif #ifndef WEXITSTATUS #define WEXITSTATUS(s) ((s) >> 8) #endif #ifndef WIFEXITED #define WIFEXITED(s) (((s) & 0xff) == 0) #endif #ifndef WIFSTOPPED #define WIFSTOPPED(s) (((s) & 0xff) == 0x7f) #endif #ifndef WIFSIGNALED #define WIFSIGNALED(s) (((unsigned int)((s)-1) & 0xffff) < 0xff) #endif #ifndef WCOREDUMP #define WCOREDUMP(s) ((s) & 0200) #endif #ifndef WTERMSIG #define WTERMSIG(s) ((s) & 0x7f) #endif #ifndef WSTOPSIG #define WSTOPSIG(s) ((s) >> 8) #endif #ifndef WRETCODE #define WRETCODE(s) ((s) >> 8) #endif #endif /* INCLUDED_syswait_h_ */