#ifndef ResourceBuffer_h
#define ResourceBuffer_h
#include "SharedBuffer.h"
#include <wtf/PassOwnPtr.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#if PLATFORM(MAC)
OBJC_CLASS NSData;
#endif
namespace WebCore {
class PurgeableBuffer;
class SharedBuffer;
class ResourceBuffer : public RefCounted<ResourceBuffer> {
public:
static PassRefPtr<ResourceBuffer> create() { return adoptRef(new ResourceBuffer); }
static PassRefPtr<ResourceBuffer> create(const char* data, int size) { return adoptRef(new ResourceBuffer(data, size)); }
static PassRefPtr<ResourceBuffer> adoptSharedBuffer(PassRefPtr<SharedBuffer> shared) { return shared ? adoptRef(new ResourceBuffer(shared)) : 0; }
virtual ~ResourceBuffer();
virtual const char* data() const;
virtual unsigned size() const;
virtual bool isEmpty() const;
void append(const char*, unsigned);
void append(SharedBuffer*);
#if USE(NETWORK_CFDATA_ARRAY_CALLBACK)
void append(CFDataRef);
#endif
void clear();
unsigned getSomeData(const char*& data, unsigned position = 0) const;
SharedBuffer* sharedBuffer() const;
#if PLATFORM(MAC)
void tryReplaceSharedBufferContents(SharedBuffer*);
#endif
PassRefPtr<ResourceBuffer> copy() const;
bool hasPurgeableBuffer() const;
void createPurgeableBuffer() const;
PassOwnPtr<PurgeableBuffer> releasePurgeableBuffer();
#if PLATFORM(MAC)
NSData *createNSData();
#endif
#if USE(CF)
CFDataRef createCFData();
#endif
protected:
ResourceBuffer();
private:
ResourceBuffer(const char*, int);
ResourceBuffer(PassRefPtr<SharedBuffer>);
RefPtr<SharedBuffer> m_sharedBuffer;
};
}
#endif // ResourceBuffer_h