diff options
author | Paul Eggert <eggert@cs.ucla.edu> | 2017-01-25 20:27:45 -0800 |
---|---|---|
committer | Paul Eggert <eggert@cs.ucla.edu> | 2017-01-25 21:25:37 -0800 |
commit | 1392ec7420ee23238a1588b759c631d87a677483 (patch) | |
tree | ca89387ce9acf91005465c7359dc4e212375c479 /src/keyboard.h | |
parent | 0dfd9a69186e12e53b8aa759c47b9747de92db43 (diff) | |
download | emacs-1392ec7420ee23238a1588b759c631d87a677483.tar.gz |
A quicker check for quit
On some microbenchmarks this lets Emacs run 60% faster on my
platform (AMD Phenom II X4 910e, Fedora 25 x86-64).
* src/atimer.c: Include keyboard.h, for pending_signals.
* src/editfns.c (Fcompare_buffer_substrings):
* src/fns.c (Fnthcdr, Fmemq, Fmemql, Fassq, Frassq, Fplist_put)
(Fnconc, Fplist_member):
Set and clear immediate_quit before and after loop instead of
executing QUIT each time through the loop. This is OK for loops
that affect only locals.
* src/eval.c (process_quit_flag): Now static.
(maybe_quit): New function, containing QUIT’s old body.
* src/fns.c (rarely_quit): New function.
(Fmember, Fassoc, Frassoc, Fdelete, Fnreverse, Freverse)
(Flax_plist_get, Flax_plist_put, internal_equal, Fnconc):
Use it instead of QUIT, for
speed in tight loops that might modify non-locals.
* src/keyboard.h (pending_signals, process_pending_signals):
These belong to keyboard.c, so move them here ...
* src/lisp.h: ... from here.
(QUIT): Redefine in terms of the new maybe_quit function, which
contains this macro’s old definiens. This works well with branch
prediction on processors with return stack buffers, e.g., x86
other than the original Pentium.
Diffstat (limited to 'src/keyboard.h')
-rw-r--r-- | src/keyboard.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/keyboard.h b/src/keyboard.h index 7cd41ae55b6..2219c011352 100644 --- a/src/keyboard.h +++ b/src/keyboard.h @@ -486,6 +486,8 @@ extern bool kbd_buffer_events_waiting (void); extern void add_user_signal (int, const char *); extern int tty_read_avail_input (struct terminal *, struct input_event *); +extern bool volatile pending_signals; +extern void process_pending_signals (void); extern struct timespec timer_check (void); extern void mark_kboards (void); |