(xg_get_file_name): Block and unblock __SIGRTMIN if defined.
* alloc.c: If HAVE_GTK_AND_PTHREAD, include pthread.h,
new variables main_thread and alloc_mutex,
define (UN)BLOCK_INPUT_ALLOC to use alloc_mutex to protect
emacs_blocked_* calls and only do (UN)BLOCK_INPUT in the main thread.
If not HAVE_GTK_AND_PTHREAD, (UN)BLOCK_INPUT_ALLOC is the same as
(UN)BLOCK_INPUT.
(emacs_blocked_free, emacs_blocked_malloc)
(emacs_blocked_realloc): Use (UN)BLOCK_INPUT_ALLOC.
(uninterrupt_malloc): Initialize main_thread and alloc_mutex.
(reset_malloc_hooks): New function.
* lisp.h: Declare reset_malloc_hooks.
* emacs.c (Fdump_emacs): Call reset_malloc_hooks.
* keyboard.c: Conditionally include pthread.h
(handle_async_inpu, input_available_signalt): If not in the main
thread, block signal, send signal to main thread and return.
(XMALLOC_PUT_SIZE, XMALLOC_GET_SIZE): New macros to handle
sizeof(size_t) != 4.
(overrun_check_malloc, overrun_check_realloc, overrun_check_free):
Use them. Also clear header and trailer of freed memory.
(GC_STRING_OVERRUN_COOKIE_SIZE): Rename from GC_STRING_EXTRA.
(string_overrun_cookie): Rename from string_overrun_pattern.
(GC_STRING_EXTRA): Define from GC_STRING_OVERRUN_COOKIE_SIZE.
(marker_blocks_pending_free): Remove.
(Fgarbage_collect): Sweep after cleaning up undo-lists.
Mark the undo lists after claning them up.
Don't free block in marker_blocks_pending_free.
(mark_buffer): Don't mark undo_list.
(gc_sweep): Sweep hash-tables and strings first.
Do free marker blocks that are empty.
(Fgarbage_collect): Clear out buffer undo_list markers after gc_sweep.
Identify those markers as Lisp_Misc_Free objects. Clear car and cdr of
the removed cons cells.
(mark_object): Undo previous change - disallow Lisp_Misc_Free objects.
(gc_sweep): Clear cons_blocks before sweeping strings, so we don't have
any cons cells pointing to unallocated stings.
Do not lisp_free any marker blocks, as there may still be pointers
to them from buffer undo lists at this stage of GC.
(init_float, init_cons): Let the normal code allocate the first block.
(CONS_BLOCK_SIZE): Redefine based on BLOCK_BYTES and bitmap size.
(CONS_BLOCK, CONS_INDEX, CONS_MARKED_P, CONS_MARK, CONS_UNMARK): New macros.
(struct cons_block): Move conses to the beginning. Add gcmarkbits.
(Fcons): Use lisp_align_malloc and CONS_UNMARK.
(live_cons_p): Check the pointer is not past the `conses' array.
(mark_maybe_object, mark_maybe_pointer): Use CONS_MARKED_P.
(mark_object, mark_buffer): Use CONS_MARKED_P and CONS_MARK.
(survives_gc_p): Use CONS_MARKED_P and simplify.
(gc_sweep): Use CONS_MARKED_P, CONS_UNMARK, and lisp_align_free.
(lisp_align_malloc): Use posix_memalign is available.
(ABLOCKS_BASE): Use HAVE_POSIX_MEMALIGN as an optimization.
(STRING_BLOCK_SIZE): Rename from STRINGS_IN_STRING_BLOCK for consistency.
Update users.
(BLOCK_ALIGN, BLOCK_BYTES, ABLOCKS_PADDING, ABLOCKS_SIZE)
(ABLOCKS_BYTES, ABLOCK_ABASE, ABLOCKS_BUSY, ABLOCKS_BASE): New macros.
(struct ablock, struct ablocks): New types.
(free_ablock): New global var.
(lisp_align_malloc, lisp_align_free): New functions.
(FLOAT_BLOCK_SIZE): Redefine in terms of BLOCK_BYTES.
(struct float_block): Reorder and add gcmarkbits.
(GETMARKBIT, SETMARKBIT, UNSETMARKBIT, FLOAT_BLOCK, FLOAT_INDEX)
(FLOAT_MARKED_P, FLOAT_MARK, FLOAT_UNMARK): New macros.
(init_float, make_float): Use lisp_align_malloc.
(free_float, live_float_p): Don't use `type' any more.
(make_float): Use FLOAT_UNMARK to access to mark bit.
(mark_maybe_object, mark_maybe_pointer, survives_gc_p):
Use FLOAT_MARKED_P to access the mark bit.
(pure_alloc): Simplify use of ALIGN.
(mark_object): Use FLOAT_MARK to access the mark bit.
(gc_sweep): Use new macros to access the float's mark bit.
(init_alloc_once): Init free_ablock.
(GC_STRING_BYTES): Don't mask markbit (it's only used on `size').
(allocate_buffer): Move.
(string_bytes): Don't mask markbit of `size_byte'.
(mark_maybe_object, mark_maybe_pointer, Fgarbage_collect)
(mark_object, mark_buffer, survives_gc_p, gc_sweep):
Use the `size' field of buffers (rather than the `name' field) for
the mark bit, as is done for all other vectorlike objects.
Use the new macros to access the mark bit of vectorlike objects.
