Attachment "lazyfree.patch" to
ticket [886231ffff]
added by
nobody
2004-01-28 21:37:18.
--- ../../tcl/generic/tclObj.c 2004-01-21 18:03:23.000000000 +0100
+++ ../generic/tclObj.c 2004-01-26 14:58:32.000000000 +0100
@@ -736,7 +736,7 @@
*/
void
-TclFreeObj(objPtr)
+TclReallyFreeObj(objPtr)
register Tcl_Obj *objPtr; /* The object to be freed. */
{
register Tcl_ObjType *typePtr = objPtr->typePtr;
@@ -775,6 +775,51 @@
tclObjsFreed++;
#endif /* TCL_COMPILE_STATS */
}
+
+#define TCL_FREESTACK_INIT_LEN 10000
+static Tcl_Obj **LazyFreeStack = NULL;
+static LazyFreeStack_Len = 0;
+static LazyFreeStack_Used = 0;
+static TclFreeObj_Depth = 0;
+
+void LazyPush(Tcl_Obj *objPtr)
+{
+ int left = LazyFreeStack_Len - LazyFreeStack_Used;
+
+ if (!left) {
+ int newlen = LazyFreeStack_Len * 2;
+
+ if (!newlen) newlen = TCL_FREESTACK_INIT_LEN;
+ LazyFreeStack = (Tcl_Obj**) ckrealloc((char*)LazyFreeStack,
+ newlen*sizeof(Tcl_Obj*));
+ LazyFreeStack_Len = newlen;
+ }
+ LazyFreeStack[LazyFreeStack_Used++] = objPtr;
+}
+
+Tcl_Obj *LazyPop(void)
+{
+ if (LazyFreeStack_Used == 0)
+ return NULL;
+ return LazyFreeStack[--LazyFreeStack_Used];
+}
+
+void
+TclFreeObj(objPtr)
+ register Tcl_Obj *objPtr; /* The object to be freed. */
+{
+ TclFreeObj_Depth++;
+ LazyPush(objPtr);
+ if (TclFreeObj_Depth == 1) {
+ Tcl_Obj *o;
+ while((o = LazyPop())) {
+ TclReallyFreeObj(o);
+ }
+ }
+ TclFreeObj_Depth--;
+}
+
+
/*
*----------------------------------------------------------------------
