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--- xnu/xnu-1504.3.12/libkern/c++/OSSerialize.cpp
+++ xnu/xnu-201/libkern/c++/OSSerialize.cpp
@@ -1,37 +1,25 @@
/*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * @APPLE_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
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * 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.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
*
- * 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
+ * This 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * 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.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * @APPLE_LICENSE_HEADER_END@
*/
/* OSSerialize.cpp created by rsulack on Wen 25-Nov-1998 */
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-#include <vm/vm_kern.h>
-__END_DECLS
#include <libkern/c++/OSContainers.h>
#include <libkern/c++/OSLib.h>
@@ -79,7 +67,6 @@
// look it up
tagString = (OSString *)tags->getObject((const OSSymbol *) o);
-// xx-review: no error checking here for addString calls!
// does it exist?
if (tagString) {
addString("<reference IDREF=\"");
@@ -89,7 +76,7 @@
}
// build a tag
- snprintf(temp, sizeof(temp), "%u", tag++);
+ sprintf(temp, "%u", tag++);
tagString = OSString::withCString(temp);
// add to tag dictionary
@@ -155,14 +142,13 @@
tag = 0;
length = 1;
- capacity = (inCapacity) ? round_page_32(inCapacity) : round_page_32(1);
- capacityIncrement = capacity;
-
- // allocate from the kernel map so that we can safely map this data
- // into user space (the primary use of the OSSerialize object)
-
- kern_return_t rc = kmem_alloc(kernel_map, (vm_offset_t *)&data, capacity);
- if (rc) {
+ capacity = inCapacity;
+ capacityIncrement = (capacity)? capacity : 256;
+
+ capacity = (((capacity - 1) / capacityIncrement) + 1)
+ * capacityIncrement;
+ data = (char *) kalloc(capacity);
+ if (!data) {
tags->release();
tags = 0;
return false;
@@ -180,7 +166,7 @@
OSSerialize *me = new OSSerialize;
if (me && !me->initWithCapacity(inCapacity)) {
- me->release();
+ me->free();
return 0;
}
@@ -199,31 +185,25 @@
unsigned int OSSerialize::ensureCapacity(unsigned int newCapacity)
{
char *newData;
+ unsigned int oldCapacity;
if (newCapacity <= capacity)
return capacity;
// round up
- newCapacity = round_page_32(newCapacity);
-
- kern_return_t rc = kmem_realloc(kernel_map,
- (vm_offset_t)data,
- capacity,
- (vm_offset_t *)&newData,
- newCapacity);
- if (!rc) {
- ACCUMSIZE(newCapacity);
-
- // kmem realloc does not free the old address range
- kmem_free(kernel_map, (vm_offset_t)data, capacity);
- ACCUMSIZE(-capacity);
-
- // kmem realloc does not zero out the new memory
- // and this could end up going to user land
- bzero(&newData[capacity], newCapacity - capacity);
-
- data = newData;
- capacity = newCapacity;
+ newCapacity = (((newCapacity - 1) / capacityIncrement) + 1)
+ * capacityIncrement;
+ newData = (char *) kalloc(newCapacity);
+ if (newData) {
+ oldCapacity = capacity;
+
+ ACCUMSIZE(newCapacity - oldCapacity);
+
+ bcopy(data, newData, oldCapacity);
+ bzero(&newData[capacity], newCapacity - oldCapacity);
+ kfree((vm_offset_t)data, oldCapacity);
+ data = newData;
+ capacity = newCapacity;
}
return capacity;
@@ -235,7 +215,7 @@
tags->release();
if (data) {
- kmem_free(kernel_map, (vm_offset_t)data, capacity);
+ kfree((vm_offset_t)data, capacity);
ACCUMSIZE( -capacity );
}
super::free();
@@ -245,7 +225,7 @@
OSDefineMetaClassAndStructors(OSSerializer, OSObject)
OSSerializer * OSSerializer::forTarget( void * target,
- OSSerializerCallback callback, void * ref )
+ OSSerializerCallback callback, void * ref = 0 )
{
OSSerializer * thing;