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--- xnu/xnu-1504.9.37/libkern/c++/OSData.cpp
+++ xnu/xnu-344.26/libkern/c++/OSData.cpp
@@ -1,29 +1,23 @@
/*
* 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@
*/
/* IOData.m created by rsulack on Thu 25-Sep-1997 */
@@ -38,7 +32,7 @@
#define super OSObject
OSDefineMetaClassAndStructors(OSData, OSObject)
-OSMetaClassDefineReservedUsed(OSData, 0); // setDeallocFunction
+OSMetaClassDefineReservedUnused(OSData, 0);
OSMetaClassDefineReservedUnused(OSData, 1);
OSMetaClassDefineReservedUnused(OSData, 2);
OSMetaClassDefineReservedUnused(OSData, 3);
@@ -50,7 +44,9 @@
#define EXTERNAL ((unsigned int) -1)
#if OSALLOCDEBUG
-extern int debug_container_malloc_size;
+extern "C" {
+ extern int debug_container_malloc_size;
+};
#define ACCUMSIZE(s) do { debug_container_malloc_size += (s); } while(0)
#else
#define ACCUMSIZE(s)
@@ -61,26 +57,19 @@
if (!super::init())
return false;
- if (data && (!inCapacity || capacity < inCapacity) ) {
- // clean out old data's storage if it isn't big enough
- kfree(data, capacity);
- data = 0;
- ACCUMSIZE(-capacity);
- }
-
- if (inCapacity && !data) {
+ if(inCapacity) {
data = (void *) kalloc(inCapacity);
if (!data)
return false;
- capacity = inCapacity;
- ACCUMSIZE(inCapacity);
}
length = 0;
- if (inCapacity < 16)
+ capacity = inCapacity;
+ capacityIncrement = capacity;
+ if(!capacityIncrement)
capacityIncrement = 16;
- else
- capacityIncrement = inCapacity;
+
+ ACCUMSIZE(capacity);
return true;
}
@@ -90,8 +79,7 @@
if ((inLength && !bytes) || !initWithCapacity(inLength))
return false;
- if (bytes != data)
- bcopy(bytes, data, inLength);
+ bcopy(bytes, data, inLength);
length = inLength;
return true;
@@ -130,7 +118,7 @@
OSData *me = new OSData;
if (me && !me->initWithCapacity(inCapacity)) {
- me->release();
+ me->free();
return 0;
}
@@ -142,7 +130,7 @@
OSData *me = new OSData;
if (me && !me->initWithBytes(bytes, inLength)) {
- me->release();
+ me->free();
return 0;
}
return me;
@@ -153,7 +141,7 @@
OSData *me = new OSData;
if (me && !me->initWithBytesNoCopy(bytes, inLength)) {
- me->release();
+ me->free();
return 0;
}
@@ -165,7 +153,7 @@
OSData *me = new OSData;
if (me && !me->initWithData(inData)) {
- me->release();
+ me->free();
return 0;
}
@@ -178,7 +166,7 @@
OSData *me = new OSData;
if (me && !me->initWithData(inData, start, inLength)) {
- me->release();
+ me->free();
return 0;
}
@@ -188,14 +176,9 @@
void OSData::free()
{
if (capacity != EXTERNAL && data && capacity) {
- kfree(data, capacity);
+ kfree((vm_offset_t)data, capacity);
ACCUMSIZE( -capacity );
- } else if (capacity == EXTERNAL) {
- DeallocFunction freemem = (DeallocFunction)reserved;
- if (freemem && data && length) {
- freemem(data, length);
- }
- }
+ }
super::free();
}
@@ -211,8 +194,6 @@
{
return capacityIncrement = increment;
}
-
-// xx-review: does not check for capacity == EXTERNAL
unsigned int OSData::ensureCapacity(unsigned int newCapacity)
{
@@ -230,7 +211,7 @@
bzero(newData + capacity, newCapacity - capacity);
if (data) {
bcopy(data, newData, capacity);
- kfree(data, capacity);
+ kfree((vm_offset_t)data, capacity);
}
ACCUMSIZE( newCapacity - capacity );
data = (void *) newData;
@@ -244,7 +225,7 @@
{
unsigned int newSize;
- if (!inLength)
+ if (inLength == 0)
return true;
if (capacity == EXTERNAL)
@@ -254,11 +235,7 @@
if ( (newSize > capacity) && newSize > ensureCapacity(newSize) )
return false;
- if (bytes)
- bcopy(bytes, &((unsigned char *)data)[length], inLength);
- else
- bzero(&((unsigned char *)data)[length], inLength);
-
+ bcopy(bytes, &((unsigned char *)data)[length], inLength);
length = newSize;
return true;
@@ -268,7 +245,7 @@
{
unsigned int newSize;
- if (!inLength)
+ if (inLength == 0)
return true;
if (capacity == EXTERNAL)
@@ -291,7 +268,7 @@
const void *OSData::getBytesNoCopy() const
{
- if (!length)
+ if (length == 0)
return 0;
else
return data;
@@ -328,11 +305,11 @@
bool OSData::isEqualTo(const OSMetaClassBase *obj) const
{
- OSData * otherData;
+ OSData * data;
OSString * str;
- if ((otherData = OSDynamicCast(OSData, obj)))
- return isEqualTo(otherData);
+ if ((data = OSDynamicCast(OSData, obj)))
+ return isEqualTo(data);
else if ((str = OSDynamicCast (OSString, obj)))
return isEqualTo(str);
else
@@ -346,7 +323,7 @@
unsigned int checkLen = length;
unsigned int stringLen;
- if (!obj)
+ if (NULL == obj)
return false;
stringLen = obj->getLength ();
@@ -430,12 +407,3 @@
return s->addXMLEndTag("data");
}
-
-/* Note I am just using the reserved pointer here instead of allocating a whole buffer
- * to hold one pointer.
- */
-void OSData::setDeallocFunction(DeallocFunction func)
-{
- reserved = (ExpansionData *)func;
- return;
-}