view src/broken-sun.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 Remove emacs_mswindows_quit_check_disallowed_p(), superseded by in_modal_loop.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 943eaba38521
children c3cf7db99b98
line wrap: on
line source

/* 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.  */

/* Synched up with: Not in FSF. */

/* Authorship:

   JWZ: long ago.
 */

/* Sun's standard and GCC's header files leave out prototypes for
   all sorts of functions. */

#ifndef INCLUDED_broken_sun_h_
#define INCLUDED_broken_sun_h_

#ifdef __GNUC__
#include <stdlib.h>
#include <stddef.h>

/*********************** stdlib functions *********************/

/* void *	memchr (const void *, int, size_t); */

/* int	memcmp (const void *, const void *, size_t); */
/* void *	memcpy (void *, const void *, size_t); */
/* void *	memmove (void *, const void *, size_t);*/
/* void *	memset (void *, int, int); */
/* char *	strcat (char *, const char *); */
/* char *	strchr (const char *, int); */
/* int	strcmp (const char *, const char *); */

/* Yes, they even left these functions out! */
int      tolower (int);
int      toupper (int);

/*********************** stdio functions *********************/

#include <stdio.h> /* else can't declare FILE */

/* FILE	*fopen (const char *, const char *); */
/* FILE	*freopen (const char *, const char *, FILE *); */
FILE	*tmpfile (void);
int	fclose (FILE *);
char	*fgets (char *, int, FILE *);
int      fgetc (FILE *);
int      fflush (FILE *);
int      fprintf (FILE *, const char *, ...);
int      fputc (char, FILE *);
int      fputs (const char *, FILE *);
size_t   fread (void *, size_t, size_t, FILE *);
int      fscanf (FILE *, const char *, ...);
int	fgetpos (FILE *, long *);
int      fseek (FILE *, long, int);
int	fsetpos (FILE *, const long *);
long     ftell (FILE *);
size_t   fwrite (const void *, size_t, size_t, FILE *);
char	*gets (char *);
int	pclose (FILE *);
void     perror (const char *);
int      printf (const char *, ...);
int      puts (const char *);
int      remove (const char *);
int      rename (const char *, const char *);
int      rewind (FILE *);
int	scanf (const char *, ...);
int	sscanf (const char *, const char *, ...);
void 	setbuf (FILE *, char *);
int 	setvbuf (FILE *, char *, int, size_t);
int	ungetc (int, FILE *);
int	vprintf (const char *, void *);
int	vfprintf (FILE *, const char *, void *);
char	*vsprintf (char *, const char *, void *);

/*********************** signal functions *********************/

int	sigblock (int);
#ifndef sigmask
int	sigmask (int);
#endif
int	sigsetmask (int);
int	sigpause (int);

/*********************** time functions ***********************/

struct timeval;
struct timezone;

int	utimes (const char *, struct timeval *);
void	tzset (void);
time_t	time (time_t *);
int	gettimeofday (struct timeval *, struct timezone *);

/*********************** file-system functions *********************/

struct stat;
#include </usr/include/sys/types.h>

int	fsync (int);
int	lstat (const char *, struct stat *);
int	fchmod (int, mode_t);
char	*mktemp (char *);
/* int	creat (const char *, mode_t); better no decl than a conflicting one... */
int	symlink (const char *, const char *);
int	readlink (const char *, char *, int);
void	sync (void);
int	select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
char *	getwd (char *);
/* int	lseek (int, long, int); better no decl than a conflicting one... */
int	_filbuf ();
int	_flsbuf ();

/**************** interprocess communication functions ******************/

int	recv (int, char *, int, int);
int	socket (int, int, int);
struct sockaddr;
int	connect (int, struct sockaddr *, int);
int	bind (int, struct sockaddr *, int);
int	listen (int, int);
int	accept (int, struct sockaddr *, int *);
int	gethostname (char *, int);
struct rusage;
int	wait3 (void *, int, struct rusage *);
int	nice (int);
int	killpg (int, int);
int	system (char *);


/*********************** low-level OS functions *********************/

int	ioctl (int, int, ...);
struct nlist;
int	nlist (const char *, struct nlist *);
int	munmap (void *, int);
int	brk (void *);
void *	sbrk (int);
struct rlimit;
int	getrlimit (int, struct rlimit *);
int	getpagesize (void);
int	shutdown (int, int);
int	mprotect (void *, int, int);

/*********************** miscellaneous functions *********************/

void	tputs (const char *cp, int affcnt, void (*)(int));
long	random (void);
int	srandom (int seed);

#endif /* __GNUC__ */

#endif /* INCLUDED_broken_sun_h_ */