Memory allocation counting.

[u/mdw/catacomb] / mparena.h

diff --git a/mparena.h b/mparena.h
index 61c735e..b541b25 100644 (file)
--- a/mparena.h
+++ b/mparena.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: mparena.h,v 1.1 1999/11/17 18:02:16 mdw Exp $
+ * $Id: mparena.h,v 1.2 1999/12/10 23:28:59 mdw Exp $
  *
  * Allocation and freeing of MP buffers
  *
@@ -30,13 +30,16 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: mparena.h,v $
+ * Revision 1.2  1999/12/10 23:28:59  mdw
+ * Memory allocation counting.
+ *
  * Revision 1.1  1999/11/17 18:02:16  mdw
  * New multiprecision integer arithmetic suite.
  *
  */
 
-#ifndef MPARENA_H
-#define MPARENA_H
+#ifndef CATACOMB_MPARENA_H
+#define CATACOMB_MPARENA_H
 
 #ifdef __cplusplus
   extern "C" {
@@ -44,7 +47,7 @@
 
 /*----- Header files ------------------------------------------------------*/
 
-#ifndef MPW_H
+#ifndef CATACOMB_MPW_H
 #  include "mpw.h"
 #endif
 
@@ -68,6 +71,7 @@ typedef struct mparena_node {
 
 typedef struct mparena {
   mparena_node *root;
+  unsigned n;
   struct mparena_ops *ops;
 } mparena;
 
@@ -105,7 +109,7 @@ extern mparena_ops mparena_defaultops;
 
 extern void mparena_create(mparena */*a*/);
 
-#define MPARENA_INIT { 0, &mparena_defaultops }
+#define MPARENA_INIT { 0, 0, &mparena_defaultops }
 
 /* --- @mparena_setops@ --- *
  *
@@ -132,6 +136,18 @@ extern mparena_ops *mparena_setops(mparena */*a*/, mparena_ops */*ops*/);
 
 extern void mparena_destroy(mparena */*a*/);
 
+/* --- @mparena_count@ --- *
+ *
+ * Arguments:  @mparena *a@ = pointer to arena block
+ *
+ * Returns:    Number of allocated blocks from this arena.
+ *
+ * Use:                Reports the number of blocks allocated from the arena and not
+ *             yet freed.
+ */
+
+extern unsigned mparena_count(mparena */*a*/);
+
 /* --- @mpalloc@ --- *
  *
  * Arguments:  @mparena *a@ = pointer to arena block
@@ -152,8 +168,7 @@ extern mpw *mpalloc(mparena */*a*/, size_t /*sz*/);
  *
  * Returns:    ---
  *
- * Use:                Returns an MP vector to an arena.  It doesn't have to be
- *             returned to the arena from which it was allocated.
+ * Use:                Returns an MP vector to an arena.
  */
 
 extern void mpfree(mparena */*a*/, mpw */*v*/);