Return more descriptive data from Fgarbage_collect.

Suggested by Stefan Monnier in
http://lists.gnu.org/archive/html/emacs-devel/2012-07/msg00369.html.
* src/alloc.c (bounded_number): New function.
(total_buffers, total_vectors): New variable.
(total_string_size): Rename to total_string_bytes, adjust users.
(total_vector_size): Rename to total_vector_bytes, adjust users.
(sweep_vectors): Account total_vectors and total_vector_bytes.
(Fgarbage_collect): New return value.  Adjust documentation.
(gc_sweep): Account total_buffers.
(Fmemory_free, Fmemory_use_counts): Use bounded_number.
(VECTOR_SIZE): Remove.
* src/data.c (Qfloat, Qvector, Qsymbol, Qstring, Qcons): Make global.
(Qinterval, Qmisc): New symbols.
(syms_of_data): Initialize them.
* src/lisp.h (Qinterval, Qsymbol, Qstring, Qmisc, Qvector, Qfloat)
(Qcons, Qbuffer): New declarations.
* lisp/emacs-lisp/chart.el (chart-emacs-storage): Change to
reflect new format of data returned by Fgarbage_collect.

1 files changed, 8 insertions, 6 deletions

diff --git a/src/data.c b/src/data.c
index 4b342c0f521..22546349677 100644
--- a/src/data.c
+++ b/src/data.c
@@ -83,12 +83,12 @@ Lisp_Object Qoverflow_error, Qunderflow_error;
 Lisp_Object Qfloatp;
 Lisp_Object Qnumberp, Qnumber_or_marker_p;
 
-Lisp_Object Qinteger;
-static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay;
+Lisp_Object Qinteger, Qinterval, Qfloat, Qvector;
+Lisp_Object Qsymbol, Qstring, Qcons, Qmisc;
 Lisp_Object Qwindow;
-static Lisp_Object Qfloat, Qwindow_configuration;
-static Lisp_Object Qprocess;
-static Lisp_Object Qcompiled_function, Qframe, Qvector;
+static Lisp_Object Qoverlay, Qwindow_configuration;
+static Lisp_Object Qprocess, Qmarker;
+static Lisp_Object Qcompiled_function, Qframe;
 Lisp_Object Qbuffer;
 static Lisp_Object Qchar_table, Qbool_vector, Qhash_table;
 static Lisp_Object Qsubrp, Qmany, Qunevalled;
@@ -3083,7 +3083,6 @@ syms_of_data (void)
   DEFSYM (Qwindow_configuration, "window-configuration");
   DEFSYM (Qprocess, "process");
   DEFSYM (Qwindow, "window");
-  /* DEFSYM (Qsubr, "subr"); */
   DEFSYM (Qcompiled_function, "compiled-function");
   DEFSYM (Qbuffer, "buffer");
   DEFSYM (Qframe, "frame");
@@ -3091,6 +3090,9 @@ syms_of_data (void)
   DEFSYM (Qchar_table, "char-table");
   DEFSYM (Qbool_vector, "bool-vector");
   DEFSYM (Qhash_table, "hash-table");
+  /* Used by Fgarbage_collect.  */
+  DEFSYM (Qinterval, "interval");
+  DEFSYM (Qmisc, "misc");
 
   DEFSYM (Qdefun, "defun");