Cleanup calls to Fgarbage_collect.

* lisp.h (maybe_gc): New prototype.
(consing_since_gc, gc_relative_threshold, memory_full_cons_threshold):
Remove declarations.
* alloc.c (maybe_gc): New function.
(consing_since_gc, gc_relative_threshold, memory_full_cons_threshold):
Make them static.
* bytecode.c (MAYBE_GC): Use maybe_gc.
* eval.c (eval_sub, Ffuncall): Likewise.
* keyboard.c (read_char): Likewise.  Adjust call to maybe_gc
to avoid dependency from auto-save feature.

1 files changed, 15 insertions, 3 deletions

diff --git a/src/alloc.c b/src/alloc.c
index 7158b45a340..36040f70b2d 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -166,16 +166,16 @@ struct emacs_globals globals;
 
 /* Number of bytes of consing done since the last gc.  */
 
-EMACS_INT consing_since_gc;
+static EMACS_INT consing_since_gc;
 
 /* Similar minimum, computed from Vgc_cons_percentage.  */
 
-EMACS_INT gc_relative_threshold;
+static EMACS_INT gc_relative_threshold;
 
 /* Minimum number of bytes of consing since GC before next GC,
    when memory is full.  */
 
-EMACS_INT memory_full_cons_threshold;
+static EMACS_INT memory_full_cons_threshold;
 
 /* Nonzero during GC.  */
 
@@ -5374,6 +5374,18 @@ bounded_number (EMACS_INT number)
   return make_number (min (MOST_POSITIVE_FIXNUM, number));
 }
 
+/* Check whether it's time for GC, and run it if so.  */
+
+void
+maybe_gc (void)
+{
+  if ((consing_since_gc > gc_cons_threshold
+       && consing_since_gc > gc_relative_threshold)
+      || (!NILP (Vmemory_full)
+          && consing_since_gc > memory_full_cons_threshold))
+    Fgarbage_collect ();
+}
+
 DEFUN ("garbage-collect", Fgarbage_collect, Sgarbage_collect, 0, 0, "",
        doc: /* Reclaim storage for Lisp objects no longer needed.
 Garbage collection happens automatically if you cons more than