haiku/headers/private/shared/DataBuffer.h

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//------------------------------------------------------------------------------
// DataBuffer.h
//
//------------------------------------------------------------------------------
#ifndef DATABUFFER_H
#define DATABUFFER_H
// Standard Includes -----------------------------------------------------------
// System Includes -------------------------------------------------------------
#include <SupportDefs.h>
// Project Includes ------------------------------------------------------------
// Local Includes --------------------------------------------------------------
// Local Defines ---------------------------------------------------------------
// Globals ---------------------------------------------------------------------
namespace BPrivate {
class BDataBuffer
{
public:
BDataBuffer(size_t len);
BDataBuffer(const void* data, size_t len, bool copy = false);
BDataBuffer(const BDataBuffer& rhs, bool copy = false);
~BDataBuffer();
BDataBuffer& operator=(const BDataBuffer& rhs);
size_t BufferSize() const;
const void* Buffer() const;
private:
class BDataReference
{
public:
void Acquire(BDataReference*& ref);
void Release(BDataReference*& ref);
char* Data() { return fData; }
size_t Size() const { return fSize; }
int32 Count() { return fCount; }
static void Create(const void* data, size_t len,
BDataReference*& ref, bool copy = false);
static void Create(size_t len, BDataReference*& ref);
private:
BDataReference(const void* data, size_t len, bool copy = false);
BDataReference(size_t len);
~BDataReference();
char* fData;
size_t fSize;
int32 fCount;
};
BDataBuffer(); // No default construction allowed!
BDataReference* fDataRef;
};
} // namespace BPrivate
#endif // DATABUFFER_H
/*
* $Log $
*
* $Id $
*
*/