* generic/tclInt.h:

	* generic/tclObj.c:
	* unix/Makefile.in: added a -DPURIFY mode that makes Tcl_Obj's
	allocated and free singularly (instead of in alloc in blocks and
	never free) to allow checkers like Purify to operate better.

1 files changed, 32 insertions, 1 deletions

diff --git a/generic/tclInt.h b/generic/tclInt.h
index 7af3c65..2ee93d0 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -11,7 +11,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclInt.h,v 1.56 2001/06/17 03:48:19 dgp Exp $
+ * RCS: @(#) $Id: tclInt.h,v 1.57 2001/06/28 01:22:21 hobbs Exp $
  */
 
 #ifndef _TCLINT
@@ -2183,6 +2183,37 @@ EXTERN int	TclCompileWhileCmd _ANSI_ARGS_((Tcl_Interp *interp,
 	TclIncrObjsFreed(); \
     }
 
+#elif defined(PURIFY)
+
+/*
+ * The PURIFY mode is like the regular mode, but instead of doing block
+ * Tcl_Obj allocation and keeping a freed list for efficiency, it always
+ * allocates and frees a single Tcl_Obj so that tools like Purify can
+ * better track memory leaks
+ */
+
+#  define TclNewObj(objPtr) \
+    (objPtr) = (Tcl_Obj *) Tcl_Ckalloc(sizeof(Tcl_Obj)); \
+    (objPtr)->refCount = 0; \
+    (objPtr)->bytes    = tclEmptyStringRep; \
+    (objPtr)->length   = 0; \
+    (objPtr)->typePtr  = NULL; \
+    TclIncrObjsAllocated();
+
+#  define TclDecrRefCount(objPtr) \
+    if (--(objPtr)->refCount <= 0) { \
+	if (((objPtr)->bytes != NULL) \
+		&& ((objPtr)->bytes != tclEmptyStringRep)) { \
+	    ckfree((char *) (objPtr)->bytes); \
+	} \
+	if (((objPtr)->typePtr != NULL) \
+		&& ((objPtr)->typePtr->freeIntRepProc != NULL)) { \
+	    (objPtr)->typePtr->freeIntRepProc(objPtr); \
+	} \
+	ckfree((char *) (objPtr)); \
+	TclIncrObjsFreed(); \
+    }
+
 #else /* not TCL_MEM_DEBUG */
 
 #ifdef TCL_THREADS