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| author | Eli Zaretskii <eliz@gnu.org> | 2016-12-12 18:03:40 +0200 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2016-12-12 18:03:40 +0200 |
| commit | a416e1d6c111527205f3583c8d201bf95af6fa20 (patch) | |
| tree | 60e58859632f072952f84dee959eb0a88f3c097a /src/buffer.h | |
| parent | 00d4ba2794243763b818c013669e36c1d2c7de62 (diff) | |
| download | emacs-a416e1d6c111527205f3583c8d201bf95af6fa20.tar.gz | |
Fix point motion in cloned buffers
* src/thread.c (post_acquire_global_lock): Call
set_buffer_internal_2 instead of tricking set_buffer_internal_1
into resetting the current buffer even if it didn't change. This
avoids bug#25165, caused by failing to record the modified values
of point and mark, because current_buffer was set to NULL. Also,
don't bother re-setting the buffer if there was no thread switch,
as that just wastes cycles.
* src/buffer.c (set_buffer_internal_2): New function, with most of
the body of set_buffer_internal_1, but without the test for B
being identical to the current buffer.
(set_buffer_internal_1): Call set_buffer_internal_2 if B is not
identical to the current buffer.
* src/buffer.h (set_buffer_internal_2): Add prototype.
* test/src/thread-tests.el (thread-sticky-point): New test.
Diffstat (limited to 'src/buffer.h')
| -rw-r--r-- | src/buffer.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/buffer.h b/src/buffer.h index 21ad5e3bc0f..854b5b5dd32 100644 --- a/src/buffer.h +++ b/src/buffer.h @@ -1082,6 +1082,7 @@ extern void recenter_overlay_lists (struct buffer *, ptrdiff_t); extern ptrdiff_t overlay_strings (ptrdiff_t, struct window *, unsigned char **); extern void validate_region (Lisp_Object *, Lisp_Object *); extern void set_buffer_internal_1 (struct buffer *); +extern void set_buffer_internal_2 (struct buffer *); extern void set_buffer_temp (struct buffer *); extern Lisp_Object buffer_local_value (Lisp_Object, Lisp_Object); extern void record_buffer (Lisp_Object); |