in. Something about the code now conditioned out by UNLOAD was screwing
up ordinary autoloads, notably of picture.el. When I figure out what, I'll
fix and re-enable this code.
This isn't specific to X, and it allows us to avoid #including
xterm.h in files that don't really have anything to do with X.
* blockinput.h: New file.
* xterm.h (BLOCK_INPUT, UNBLOCK_INPUT, TOTALLY_UNBLOCK_INPUT,
UNBLOCK_INPUT_RESIGNAL): These are now in blockinput.h.
(x_input_blocked, x_pending_input): Deleted; there are analogs
in blockinput.h called interrupt_input_blocked and
interrupt_input_pending.
* keyboard.c (interrupt_input_blocked, interrupt_input_pending):
New variables, used by the macros in blockinput.h.
* xterm.c: #include blockinput.h.
(x_input_blocked, x_pending_input): Deleted.
(XTread_socket): Test and set interrupt_input_blocked and
interrupt_input_pending instead of the old variables.
* alloc.c, xfaces.c, xfns.c, xmenu.c, xselect.c, keymap.c:
#include blockinput.h.
* eval.c: #include blockinput.h instead of xterm.h.
* keyboard.c: #include blockinput.h.
(input_poll_signal): Just test
interrupt_input_blocked, instead of testing HAVE_X_WINDOWS and
x_input_blocked.
Block the processing of interrupt input while we're manipulating the
malloc heap.
* alloc.c: (xfree): New function, to make it easy to free things
safely.
(xmalloc, xrealloc): Block X input while doing the deed.
(VALIDATE_LISP_STORAGE, gc_sweep, compact_strings): Use xfree
instead of free.
(uninterrupt_malloc): New function, to install input-blocking
hooks into the GNU malloc routines.
* emacs.c [not SYSTEM_MALLOC] (main): Call uninterrupt_malloc
on startup.
* alloc.c: (make_interval, make_float, Fcons, Fmake_vector,
Fmake_symbol, Fmake_marker, make_uninit_string, Fgarbage_collect):
Use xmalloc instead of malloc; don't bother to check if out of
memory here.
(Fgarbage_collect): Call xrealloc instead of realloc.
* buffer.c: Use xmalloc and xfree instead of malloc and free;
don't bother to check if out of memory here.
(Fget_buffer_create): Put BLOCK_INPUT/UNBLOCK_INPUT pair around
calls to ralloc routines.
* insdel.c: Same.
* lisp.h (xfree): New extern declaration.
* xfaces.c (xfree): Don't #define this to be free; use the
definition in alloc.c.
* dispnew.c, doc.c, doprnt.c, fileio.c, lread.c, term.c, xfns.c,
xmenu.c, xterm.c: Use xfree instead of free.
* hftctl.c: Use xfree and xmalloc instead of free and malloc.
* keymap.c (current_minor_maps): BLOCK_INPUT while calling realloc
and malloc.
* search.c: Since the regexp routines can malloc, BLOCK_INPUT
while runing them. #include blockinput.h.
* sysdep.c: #include blockinput.h. Call xfree and xmalloc instead
of free and malloc. BLOCK_INPUT around routines which we know
will call malloc.
ymakefile (keyboard.o, keymap.o, search.o, sysdep.o, xfaces.o,
xfns.o, xmenu.o, xterm.o, xselect.o, alloc.o, eval.o): Note that
these depend on blockinput.h.
fact that (eq TYPE 'keymap) means FUNCTION will become a keymap
when loaded.
(Fmacroexpand): Instead of assuming that every autoload
form with a fifth element is a macro, actually check the fifth
element against t and `macro', which are the only values which
denote macroness.
argument, which specifies the value to return to the catch, or the
data to give to the condition handler. Renamed to
unwind_to_catch, to reflect new role.
(Fsignal, Fthrow): Removed code to set catch tag value and do the
long-jump; this is taken care of by unwind_to_catch.
about setting h.poll_suppress_count; it's guaranteed to be the
same as c.poll_suppress_count.
(internal_condition_case): Don't worry about
h.poll_suppress_count.
(Fsignal): Use h->tag->poll_suppress_count instead of
h->poll_suppress_count.
* eval.c (Fsignal): It's okay for the debugger to return to the
caller if the caller was signalling a quit.
* eval.c (unbind_catch): Restore the polling suppression count
here, instead of in Fsignal and Fthrow.
(Fthrow, Fsignal): Don't restore the polling suppression count here.
* eval.c (struct catchtag): More documentation.
* eval.c (entering_debugger): Variable renamed
when_entered_debugger, and is now a timestamp based on
num_nonmacro_input_chars.
(init_eval): Initialize when_entered_debugger, not
entering_debugger.
(call_debugger): Set when_entered_debugger to the current value of
num_nonmacro_input_chars.
(find_handler_clause): Don't call debugger unless
num_nonmacro_input_chars is greater than when_entered_debugger;
that way, we won't call the debugger unless the user has had a
chance to take control.
(Fbacktrace): Don't clear entering_debugger here.
