This is especially useful in cases where modules only use a single
entry point and use the data to dispatch to the actual function. Such
a design is common for languages such as Go and C++.
* src/emacs-module.c (module_function_data): New function.
* src/print.c (print_vectorlike): Use it to print module function data
if not NULL.
(print_object): Adapt size of buffer.
* test/data/emacs-module/mod-test.c (emacs_module_init): Pass some
non-NULL data to ‘mod-test-sum’.
(Fmod_test_sum): Check that correct data is passed through.
* test/src/emacs-module-tests.el (mod-test-sum-test)
(module-function-object): Adapt unit tests.
* lisp/x-dnd.el (x-dnd-get-drop-x-y, x-dnd-version-from-flags)
(x-dnd-more-than-3-from-flags, x-dnd-get-motif-value)
(x-dnd-motif-value-to-list): Do not worry about pairs of
16-bit numbers, as the C code no longer generates them;
it generates bignums now, when needed on 32-bit platforms.
In C++17, 'noexcept' is part of a function type and may be used in
typedef declarations, see
https://en.cppreference.com/w/cpp/language/noexcept_spec.
* src/emacs-module.h.in: Mark function pointer type aliases as
'noexcept' in C++17.
* test/src/emacs-module-tests.el (module/function-finalizer): Create
100 leaked functions to increase the probability that at least one
gets garbage-collected.
On my platform, this sped up (make-string 4000000000 0) from 2.5
to 0.015 seconds (not that people should want to do this much :-).
* src/alloc.c (allocate_string_data): New arg CLEARIT.
Callers changed.
(Fmake_string): Prefer calloc to malloc+memset when allocating a
large string of NUL bytes.
(make_clear_string): New function.
(make_uninit_string): Use it.
(make_clear_multibyte_string): New function.
(make_uninit_multibyte_string): Use it.
* src/module-env-28.h: Add new module environment functions to
module environment for Emacs 28.
* src/emacs-module.h.in: Document that 'emacs_finalizer' also works
for function finalizers.
* src/emacs-module.c (CHECK_MODULE_FUNCTION): New function.
(struct Lisp_Module_Function): Add finalizer data member.
(module_make_function): Initialize finalizer.
(module_get_function_finalizer)
(module_set_function_finalizer): New module environment functions.
(module_finalize_function): New function.
(initialize_environment): Initialize new environment functions.
* src/alloc.c (cleanup_vector): Call potential module function
finalizer during garbage collection.
* test/data/emacs-module/mod-test.c (signal_error): New helper
function.
(memory_full): Use it.
(finalizer): New example function finalizer.
(Fmod_test_make_function_with_finalizer)
(Fmod_test_function_finalizer_calls): New test module functions.
(emacs_module_init): Define them.
* test/src/emacs-module-tests.el (module/function-finalizer): New unit
test.
* doc/lispref/internals.texi (Module Functions): Document new
functionality.
(Module Misc): Move description of 'emacs_finalizer' type to 'Module
Functions' node, and add a reference to it.
* etc/NEWS: Mention new functionality.
* src/w32heap.c (sys_calloc): New function, implements calloc
in terms of our private implementations of malloc.
* nt/inc/ms-w32.h (calloc): Redirect to sys_calloc.
* doc/misc/trampver.texi:
* lisp/net/trampver.el: Change version to "2.4.3.27.1".
(customize-package-emacs-version-alist): Add Tramp version
integrated in Emacs 27.1.
* lisp/frame.el (top-level): Add mode-line-format,
tab-line-format, and header-line-format to the list of variables
that should trigger an immediate redisplay of the buffer's
window. This fixes redisplay of windows when the mode line
changes its height.
* src/xdisp.c (window_box_height): Use the window's
mode_line_height, tab_line_height, and header_line_height fields
in preference to CURRENT_MODE_LINE_HEIGHT,
CURRENT_TAB_LINE_HEIGHT, and CURRENT_HEADER_LINE_HEIGHT,
respectively. This fixes display of vertical scroll bar when the
height of the window's mode line changes.
* src/dispnew.c (adjust_glyph_matrix): When resizing a window's
matrix, reset the mode_line_p flag of the previous mode-line row,
so that the window_box_height, CURRENT_MODE_LINE_HEIGHT, and their
ilk won't use stale info. (Bug#38828)
Prefer calloc to malloc+memset when allocating large zeroed objects.
This avoids page thrashing when (make-vector 1000000000 nil)
allocates a large nil vector, as Emacs need not touch the
vector’s pages. This wins on platforms like GNU/Linux where
calloc can fiddle with page tables to create a block of memory
that is lazily zeroed.
* src/alloc.c (lisp_malloc, lmalloc, allocate_vectorlike):
New arg CLEARIT to tell callee whether to use malloc or calloc.
All callers changed.
(allocate_clear_vector, allocate_nil_vector): New functions.
* src/alloc.c (xzalloc, make_vector):
* src/lisp.h (make_nil_vector):
Prefer calloc to malloc + memset(...,0,...).
* src/xfns.c (x_get_net_workarea): Change a recently moved #ifndef
so that GTK builds which need this function will compile it.
Reported by John <jpff@codemist.co.uk>.
(cherry picked from commit d36adb544d)
* src/xfns.c (x_get_net_workarea): Change a recently moved #ifndef
so that GTK builds which need this function will compile it.
Reported by John <jpff@codemist.co.uk>.
* lisp/custom.el (custom-push-theme): Don't use setcar to modify
the recorded value of PROP; instead, cons a new property list by
deleting the old value and adding the new one. (Bug#38812)
Occasionally, loading cl-generic.el from source requires
max_specpdl_size > 1600 when bootstrapping, and thus fails.
In any case we are very close to the limit.
* src/eval.c (init_eval_once): Raise max_specpdl_size to 1800.
* doc/lispref/variables.texi (Local Variables): Update docs.
Now that Gnulib assumes ‘long long’, it is a good time to clean
out old cruft porting to pre-C99 compilers that lack it.
* src/data.c (ULL_WIDTH, ULL_MAX): Remove.
All uses replaced by ULLONG_WIDTH, ULLONG_MAX.
(bits_word_to_host_endian): Assume ‘unsigned long long’.
By the way, the old code had a performance typo: it used
HAVE_UNSIGNED_LONG_LONG where it should have used
HAVE_UNSIGNED_LONG_LONG_INT.
* src/sysdep.c (ULLONG_MAX): Remove, as lib/limits.h does this now.
(time_from_jiffies) [GNU_LINUX]: Assume ‘long long’.
186152ba40 Pacify gcc -Wunused-function on Ubuntu 18.04.3
4cd143aded Fix copyright years by hand
365e01cc9f Update copyright year to 2020
cd2c156163 ; * etc/NEWS: Make the description of XDG fallback more ac...
# Conflicts:
# etc/NEWS
# etc/refcards/ru-refcard.tex
This improves on 2019-12-25T20:01:07Z!eggert@cs.ucla.edu,
by fixing a GCC warning on Ubuntu 18.04.3
“‘x_get_net_workarea’ defined but not used”.
* src/xfns.c (x_get_net_workarea) [!USE_GTK]: Do not define.
