--- xnu/xnu-1228/libkern/c++/OSCollectionIterator.cpp
+++ xnu/xnu-7195.81.3/libkern/c++/OSCollectionIterator.cpp
@@ -2,7 +2,7 @@
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- * 
+ *
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
- * 
+ *
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
- * 
+ *
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -22,116 +22,113 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
- * 
+ *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* IOArray.h created by rsulack on Thu 11-Sep-1997 */
 
+#define IOKIT_ENABLE_SHARED_PTR
+
+#include <libkern/c++/OSArray.h>
+#include <libkern/c++/OSCollection.h>
 #include <libkern/c++/OSCollectionIterator.h>
-#include <libkern/c++/OSCollection.h>
-#include <libkern/c++/OSArray.h>
 #include <libkern/c++/OSLib.h>
+#include <libkern/c++/OSSharedPtr.h>
 
 #define super OSIterator
 
 OSDefineMetaClassAndStructors(OSCollectionIterator, OSIterator)
 
-#if OSALLOCDEBUG
-extern "C" {
-    extern int debug_container_malloc_size;
-};
-#define ACCUMSIZE(s) do { debug_container_malloc_size += (s); } while(0)
-#else
-#define ACCUMSIZE(s)
-#endif
+bool
+OSCollectionIterator::initWithCollection(const OSCollection *inColl)
+{
+	if (!super::init() || !inColl) {
+		return false;
+	}
 
-bool OSCollectionIterator::initWithCollection(const OSCollection *inColl)
-{
-    if ( !super::init() || !inColl)
-        return false;
+	collection.reset(inColl, OSRetain);
+	collIterator = NULL;
+	initialUpdateStamp = 0;
+	valid = false;
 
-    inColl->retain();
-    collection = inColl;
-    collIterator = 0;
-    initialUpdateStamp = 0;
-    valid = false;
-
-    return this;
+	return true;
 }
 
-OSCollectionIterator *
+OSSharedPtr<OSCollectionIterator>
 OSCollectionIterator::withCollection(const OSCollection *inColl)
 {
+	OSSharedPtr<OSCollectionIterator> me = OSMakeShared<OSCollectionIterator>();
 
-    OSCollectionIterator *me = new OSCollectionIterator;
+	if (me && !me->initWithCollection(inColl)) {
+		return nullptr;
+	}
 
-    if (me && !me->initWithCollection(inColl)) {
-        me->release();
-        return 0;
-    }
-
-    return me;
+	return me;
 }
 
-void OSCollectionIterator::free()
+void
+OSCollectionIterator::free()
 {
-    if (collIterator) {
-        kfree(collIterator, collection->iteratorSize());
-	ACCUMSIZE(-(collection->iteratorSize()));
-        collIterator = 0;
-    }
+	if (collIterator) {
+		kfree(collIterator, collection->iteratorSize());
+		OSCONTAINER_ACCUMSIZE(-((size_t) collection->iteratorSize()));
+		collIterator = NULL;
+	}
 
-    if (collection) {
-        collection->release();
-        collection = 0;
-    }
+	collection.reset();
 
-    super::free();
+	super::free();
 }
 
-void OSCollectionIterator::reset()
+void
+OSCollectionIterator::reset()
 {
-    valid = false;
+	valid = false;
 
-    if (!collIterator) {
-        collIterator = (void *)kalloc(collection->iteratorSize());
-	ACCUMSIZE(collection->iteratorSize());
-        if (!collIterator)
-            return;
-    }
+	if (!collIterator) {
+		collIterator = (void *)kalloc_container(collection->iteratorSize());
+		OSCONTAINER_ACCUMSIZE(collection->iteratorSize());
+		if (!collIterator) {
+			return;
+		}
+	}
 
-    if (!collection->initIterator(collIterator))
-        return;
+	if (!collection->initIterator(collIterator)) {
+		return;
+	}
 
-    initialUpdateStamp = collection->updateStamp;
-    valid = true;
+	initialUpdateStamp = collection->updateStamp;
+	valid = true;
 }
 
-bool OSCollectionIterator::isValid()
+bool
+OSCollectionIterator::isValid()
 {
-    if (!collIterator) {
-        collIterator = (void *)kalloc(collection->iteratorSize());
-	ACCUMSIZE(collection->iteratorSize());
-        if (!collection->initIterator(collIterator))
-            return false;
-        initialUpdateStamp = collection->updateStamp;
-        valid = true;
-    }
-    else if (!valid || collection->updateStamp != initialUpdateStamp)
-        return false;
-    
-    return true;
+	if (!collIterator) {
+		collIterator = (void *)kalloc_container(collection->iteratorSize());
+		OSCONTAINER_ACCUMSIZE(collection->iteratorSize());
+		if (!collection->initIterator(collIterator)) {
+			return false;
+		}
+		initialUpdateStamp = collection->updateStamp;
+		valid = true;
+	} else if (!valid || collection->updateStamp != initialUpdateStamp) {
+		return false;
+	}
+
+	return true;
 }
 
-OSObject *OSCollectionIterator::getNextObject()
+OSObject *
+OSCollectionIterator::getNextObject()
 {
-    OSObject *retObj;
-    bool retVal;
+	OSObject *retObj;
+	bool retVal;
 
-    if (!isValid())
-        return 0;
+	if (!isValid()) {
+		return NULL;
+	}
 
-    retVal = collection->getNextObjectForIterator(collIterator, &retObj);
-    return (retVal)? retObj : 0;
+	retVal = collection->getNextObjectForIterator(collIterator, &retObj);
+	return (retVal)? retObj : NULL;
 }
-