comparison src/signal.c @ 1318:b531bf8658e9

[xemacs-hg @ 2003-02-21 06:56:46 by ben] redisplay fixes et al. PROBLEMS: Add comment about Cygwin, unexec and sysmalloc. Move some non-general stuff out of general. Make a section for x86. configure.in: Add check for broken alloca in funcalls. mule/mule-cmds.el: Alias file-name to native not vice-versa. Do set EOL of native but not of process output to fix various problems and be consistent with code-init.el. code-cmds.el: Return a name not a coding system. code-init.el: Reindent. Remove `file-name' since it should always be the same as native. unicode.el: Rename to load-unicode-mapping-table as suggested by the anonymous (but rather Turnbullian) comment in unicode.c. xemacs.dsp: Add /k to default build. alloc.c: Make gc_currently_forbidden static. config.h.in, lisp.h: Move some stuff to lisp.h. console-gtk.h, console-impl.h, console-msw.h, console-x.h, event-Xt.c, event-msw.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-x.c, gtk-xemacs.c: Remove duplicated code to redraw exposed area. Add deadbox method needed by the generalized redraw code. Defer redrawing if already in redisplay. frame-msw.c, event-stream.c, frame.c: Add comments about calling Lisp. debug.c, general-slots.h: Move generalish symbols to general-slots.h. doprnt.c: reindent. lisp.h, dynarr.c: Add debug code for locking a dynarr to catch invalid mods. Use in redisplay.c. eval.c: file-coding.c: Define file-name as alias for native not vice-versa. frame-gtk.c, frame-x.c: Move Qwindow_id to general-slots. dialog-msw.c, glyphs-gtk.c, glyphs-msw.c, glyphs-widget.c, glyphs-x.c, gui.c, gui.h, menubar-msw.c, menubar.c: Ensure that various glyph functions that eval within redisplay protect the evals. Same for calls to internal_equal(). Modify various functions, e.g. gui_item_*(), to protect evals within redisplay, taking an in_redisplay parameter if it's possible for them to be called both inside and outside of redisplay. gutter.c: Defer specifier-changed updating till after redisplay, if necessary, since we need to enter redisplay to do it. gutter.c: Do nothing if in redisplay. lisp.h: Add version of alloca() for use in function calls. lisp.h: Add XCAD[D+]R up to 6 D's, and aliases X1ST, X2ND, etc. frame.c, frame.h, redisplay.c, redisplay.h, signal.c, toolbar.c: Redo critical-section code and move from frame.c to redisplay.c. Require that every place inside of redisplay catch errors itself, not at the edge of the critical section (thereby bypassing the rest of redisplay and leaving things in an inconsistent state). Introduce separate means of holding frame-size changes without entering a complete critical section. Introduce "post-redisplay" methods for deferring things till after redisplay. Abort if we enter redisplay reentrantly. Disable all quit checking in redisplay since it's too dangerous. Ensure that all calls to QUIT trigger an abort if unprotected. redisplay.c, scrollbar-gtk.c, scrollbar-x.c, scrollbar.c: Create enter/exit_redisplay_critical_section_maybe() for code that needs to ensure it's in a critical section but doesn't interfere with an existing critical section. sysdep.c: Use _wexecve() when under Windows NT for Unicode correctness. text.c, text.h: Add new_dfc() functions, which return an alloca()ed value rather than requiring an lvalue. (Not really used yet; used in another workspace, to come.) Add some macros for SIZED_EXTERNAL. Update the encoding aliases after involved scrutinization of the X manual. unicode.c: Answer the anonymous but suspiciously Turnbullian questions. Rename parse-unicode-translation-table to load-unicode-mapping-table, as suggested.
author ben
date Fri, 21 Feb 2003 06:57:21 +0000
parents 70921960b980
children 51e4a77ed447
comparison
equal deleted inserted replaced
1317:d9d08dc5e617 1318:b531bf8658e9
426 a signal) */ 426 a signal) */
427 427
428 void 428 void
429 check_what_happened (void) 429 check_what_happened (void)
430 { 430 {
431 #ifdef ERROR_CHECK_TRAPPING_PROBLEMS
432 if (in_display
433 && !((get_inhibit_flags () & INTERNAL_INHIBIT_ERRORS)
434 && (get_inhibit_flags () & INTERNAL_INHIBIT_THROWS)))
435 assert_with_message
436 (0, "QUIT called from within redisplay without being properly wrapped");
437 #endif
438
439 /* No GC can happen anywhere here. handle_async_timeout_signal() 431 /* No GC can happen anywhere here. handle_async_timeout_signal()
440 prevents GC (from asynch timeout handler), so does check_quit() 432 prevents GC (from asynch timeout handler), so does check_quit()
441 (from processing a message such as WM_INITMENU as a result of 433 (from processing a message such as WM_INITMENU as a result of
442 draining the message queue). establish_slow_interrupt_timer() is 434 draining the message queue). establish_slow_interrupt_timer() is
443 too low-level to do anything that might invoke QUIT or call Lisp 435 too low-level to do anything that might invoke QUIT or call Lisp
444 code. */ 436 code. */
445 something_happened = 0; 437
438 #ifdef ERROR_CHECK_TRAPPING_PROBLEMS
439 assert_with_message
440 (proper_redisplay_wrapping_in_place (),
441 "QUIT called from within redisplay without being properly wrapped");
442
443 /* When in a critical section, don't reset something_happened, so that
444 every single QUIT will verify proper wrapping. (something_happened
445 was set by enter_redisplay_critical_section() and will be reset
446 upon exit.) */
447 if (!in_display)
448 #endif
449 something_happened = 0;
450
446 if (async_timeout_happened) 451 if (async_timeout_happened)
447 { 452 {
448 async_timeout_happened = 0; 453 async_timeout_happened = 0;
449 handle_async_timeout_signal (); 454 handle_async_timeout_signal ();
450 } 455 }