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+/*
+     File: CACFData.h
+ Abstract: Part of CoreAudio Utility Classes
+  Version: 1.1
+ 
+ Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
+ Inc. ("Apple") in consideration of your agreement to the following
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+ this Apple software constitutes acceptance of these terms.  If you do
+ not agree with these terms, please do not use, install, modify or
+ redistribute this Apple software.
+ 
+ In consideration of your agreement to abide by the following terms, and
+ subject to these terms, Apple grants you a personal, non-exclusive
+ license, under Apple's copyrights in this original Apple software (the
+ "Apple Software"), to use, reproduce, modify and redistribute the Apple
+ Software, with or without modifications, in source and/or binary forms;
+ provided that if you redistribute the Apple Software in its entirety and
+ without modifications, you must retain this notice and the following
+ text and disclaimers in all such redistributions of the Apple Software.
+ Neither the name, trademarks, service marks or logos of Apple Inc. may
+ be used to endorse or promote products derived from the Apple Software
+ without specific prior written permission from Apple.  Except as
+ expressly stated in this notice, no other rights or licenses, express or
+ implied, are granted by Apple herein, including but not limited to any
+ patent rights that may be infringed by your derivative works or by other
+ works in which the Apple Software may be incorporated.
+ 
+ The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
+ MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+ THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+ OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+ 
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
+ MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
+ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+ STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+ 
+ Copyright (C) 2014 Apple Inc. All Rights Reserved.
+ 
+*/
+#if !defined(__CACFData_h__)
+#define __CACFData_h__
+
+//=============================================================================
+//	Includes
+//=============================================================================
+
+#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
+	#include <CoreAudio/CoreAudioTypes.h>
+	#include <CoreFoundation/CFData.h>
+#else
+	#include <CoreAudioTypes.h>
+	#include <CFData.h>
+#endif
+
+#include "CADebugMacros.h"
+
+//=============================================================================
+//	CACFData
+//=============================================================================
+
+class CACFData
+{
+
+//	Construction/Destruction
+public:
+	explicit	CACFData(CFDataRef inCFData) : mCFData(inCFData), mWillRelease(true) {}
+				CACFData(CFDataRef inCFData, bool inWillRelease) : mCFData(inCFData), mWillRelease(inWillRelease) {}
+				CACFData(const void* inData, UInt32 inDataSize) : mCFData(NULL), mWillRelease(true) { mCFData = CFDataCreate(NULL, static_cast<const UInt8*>(inData), static_cast<CFIndex>(inDataSize)); }
+				~CACFData() { Release(); }
+				CACFData(const CACFData& inNumber) : mCFData(inNumber.mCFData), mWillRelease(inNumber.mWillRelease) { Retain(); }
+	CACFData&	operator=(const CACFData& inNumber) { Release(); mCFData = inNumber.mCFData; mWillRelease = inNumber.mWillRelease; Retain(); return *this; }
+	CACFData&	operator=(CFDataRef inCFData) { Release(); mCFData = inCFData; mWillRelease = true; return *this; }
+
+private:
+	void		Retain() { if(mWillRelease && (mCFData != NULL)) { CFRetain(mCFData); } }
+	void		Release() { if(mWillRelease && (mCFData != NULL)) { CFRelease(mCFData); } }
+	
+	CFDataRef	mCFData;
+	bool		mWillRelease;
+
+//	Operations
+public:
+	void		AllowRelease() { mWillRelease = true; }
+	void		DontAllowRelease() { mWillRelease = false; }
+	bool		IsValid() { return mCFData != NULL; }
+
+//	Value Access
+public:
+	CFDataRef	GetCFData() const { return mCFData; }
+	CFDataRef	CopyCFData() const { if(mCFData != NULL) { CFRetain(mCFData); } return mCFData; }
+	
+	UInt32		GetSize() const { return ToUInt32(CFDataGetLength(mCFData)); }
+	const void*	GetDataPtr() const { return CFDataGetBytePtr(mCFData); }
+	void		CopyData(UInt32 inStartOffset, void* outData, UInt32 inDataSize) const { CFRange theRange = { static_cast<CFIndex>(inStartOffset), static_cast<CFIndex>(inDataSize) }; CFDataGetBytes(mCFData, theRange, static_cast<UInt8*>(outData)); }
+	
+	SInt32		GetSInt32() const { SInt32 theAnswer = 0; CopyData(0, &theAnswer, SizeOf32(SInt32)); return theAnswer; }
+	Float32		GetFloat32() const { Float32 theAnswer = 0; CopyData(0, &theAnswer, SizeOf32(Float32)); return theAnswer; }
+
+};
+
+#endif