Mercurial > hg > xemacs-beta
view src/m/dpx2.h @ 1268:fffe735e63ee
[xemacs-hg @ 2003-02-07 11:50:50 by ben]
fixes for menu crashes + better preemption behavior
This contains two related changes:
(1) Fix problems with reentrant calling of lwlib and associated
crashes when selecting menu items.
(2) Improve redisplay handling of preemption. Turn on lazy lock
and hold down page-down or page-up and you'll see what I mean.
They are related because they both touch on the code that retrieves
events and handles the internal queues.
console-msw.h, event-msw.c, event-stream.c, events.h, menubar-msw.c, menubar-x.c, menubar.h: mswindows_protect_modal_loop() has been generalized to
event_stream_protect_modal_loop(), and moved to event-stream.c.
mswindows_in_modal_loop ->in_modal_loop likewise. Changes in
event-msw.c and menubar-msw.c for the new names and calling format
(use structures instead of static variables in menubar-msw.c).
Delete former in_menu_callback and use in_modal_loop in its place.
Remove emacs_mswindows_quit_check_disallowed_p(), superseded by
in_modal_loop. Use event_stream_protect_modal_loop() in
pre_activate_callback() so that we get no lwlib reentrancy.
Rearrange some of the code in event-msw.c to be grouped better.
Make mswindows_drain_windows_queue() respect in_modal_loop and
do nothing if so.
cmdloop.c, event-stream.c: Don't conditionalize on LWLIB_MENUBARS_LUCID when giving error when
in_modal_loop, and give better error.
event-Xt.c, event-gtk.c: If in_modal_loop, only retrieve process and timeout events.
Don't retrieve any X events because processing them can lead
to reentrancy in lwlib -> death.
event-stream.c: Remove unused parameter to check_event_stream_ok() and change
all callers.
lisp.h, event-stream.c: Rearrange some functions for increased clarity -- in particular,
group all the input-pending/QUIT-related stuff together, and
put right next to next-event stuff, to which it's related.
Add the concept of "HOW_MANY" -- when asking whether user input
is pending, you can ask if at least HOW_MANY events are pending,
not just if any are. Add parameter to detect_input_pending()
for this. Change recursive_sit_for from a Lisp_Object (which
could only be Qt or Qnil) to an int, like it should be.
event-Xt.c, event-gtk.c, event-xlike-inc.c: New file.
Abstract out similar code in event_{Xt/gtk}_pending_p() and write
only once, using include-file tricks. Rewrite this function to
implement HOW_MANY and only process events when not in_modal_loop.
event-msw.c: Implement HOW_MANY and only process events when not in_modal_loop.
event-tty.c: Implement HOW_MANY.
redisplay.c: Add var `max-preempts' to control maximum number of preempts.
(#### perhaps not useful) Rewrite preemption check so that,
rather than preempting when any user events are available, only
preempt when a certain number (currently 4) of them are backed up.
This effectively allows redisplay to proceed to completion in the
presence of a fast auto-repeat (usually the auto-repeating is
generated dynamically as necessary), and you get much better
display behavior with lazy-lock active.
event-unixoid.c: Comment changes.
event-stream.c: Rewrite discard-input much more simply and safely using the
drain-queue functions. I think the old version might loop
forever if called when in_modal_loop.
SEMI-UNRELATED CHANGES:
-----------------------
event-stream.c: Turn QUIT-checking back on when running the pre-idle hook so it
can be quit out of.
indent.c: Document exact functioning of `vertical-motion' better, and its
differences from GNU Emacs.
| author | ben |
|---|---|
| date | Fri, 07 Feb 2003 11:50:54 +0000 |
| parents | c69610198c35 |
| children | 4542b72c005e |
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/* machine description for Bull DPX/2 range Copyright (C) 1985, 1986 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 2, 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 XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: FSF 19.31. */ /* The following line tells the configuration script what sort of operating system this machine is likely to run. USUAL-OPSYS="usg5-3" */ /* * You need to either un-comment one of these lines, or copy one * of them to config.h before you include this file. * Note that some simply define a constant and others set a value. */ /* #define ncl_el /* DPX/2 210,220 etc */ /* #define ncl_mr 1 /* DPX/2 320,340 (and 360,380 ?) */ /* Now define a symbol for the cpu type, if your compiler does not define it automatically: Ones defined so far include vax, m68000, ns16000, pyramid, orion, tahoe, APOLLO and many others */ /* /bin/cc on ncl_el and ncl_mr define m68k and mc68000 */ /* Data type of load average, as read out of kmem. */ #define LOAD_AVE_TYPE long /* Convert that into an integer that is 100 for a load average of 1.0 */ #define FSCALE 1000.0 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) /* Define CANNOT_DUMP on machines where unexec does not work. Then the function dump-emacs will not be defined and temacs will do (load "loadup") automatically unless told otherwise. */ /*#define CANNOT_DUMP /**/ /* Define C_ALLOCA if this machine does not support a true alloca and the one written in C should be used instead. Define HAVE_ALLOCA to say that the system provides a properly working alloca function and it should be used. Define neither one if an assembler-language alloca in the file alloca.s should be used. */ #define C_ALLOCA /* #define HAVE_ALLOCA /**/ /* Define NO_REMAP if memory segmentation makes it not work well to change the boundary between the text section and data section when Emacs is dumped. If you define this, the preloaded Lisp code will not be sharable; but that's better than failing completely. */ #define NO_REMAP /* * end of the standard macro's */ /* * a neat identifier to handle source mods (if needed) */ #ifndef DPX2 #define DPX2 #endif /* Disable support for shared libraries in unexec. */ #undef USG_SHARED_LIBRARIES /* * if we use X11, libX11.a has these... */ # undef LIB_X11_LIB # define LIB_X11_LIB "-lX11" # undef LIBX11_SYSTEM # define LIBX11_SYSTEM "-lmalloc -lnsl" /* * useful if you have INET loaded */ # define LIBS_MACHINE "-linet" #if (defined(ncl_mr) || defined(ncl_el)) && !defined (NBPC) # define NBPC 4096 #endif /* * if SIGIO is defined, much of the emacs * code assumes we are BSD !! */ #ifdef SIGIO #define BROKEN_SIGIO #endif #ifdef SIGTSTP /* * sysdep.c(sys_suspend) works fine with emacs-18.58 * and BOS 02.00.45, if you have an earler version * of Emacs and/or BOS, or have problems, or just prefer * to start a sub-shell rather than suspend-emacs, * un-comment out the next line. */ /* # undef SIGTSTP /* make suspend-emacs spawn a sub-shell */ #endif /* * no we don't want this at all */ #ifdef USG_JOBCTRL # undef USG_JOBCTRL #endif /* select also needs this header file--but not in ymakefile. */ #ifndef NOT_C_CODE #include <sys/types.h> #include <sys/select.h> #endif #define TEXT_START 0 /* * Define the direction of stack growth. */ #define STACK_DIRECTION -1 /* on bos2.00.45 there is a bug that makes the F_SETOWN fcntl() call enters in an infinite loop. Avoid calling it */ #define F_SETOWN_BUG /* system closedir sometimes complains about wrong descriptor for no apparent reasons. Use the provided closedir in sysdep.c instead */ #ifdef HAVE_CLOSEDIR #undef HAVE_CLOSEDIR #endif /* This is to prevent memory clobbering on the DPX/2 200. */ #define LD_SWITCH_MACHINE "-N -T32" /* end of dpx2.h */