gecko-dev/netwerk/cache/nsCacheMetaData.h

45 строки
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _nsCacheMetaData_h_
#define _nsCacheMetaData_h_
#include "nspr.h"
#include "nscore.h"
class nsICacheMetaDataVisitor;
class nsCacheMetaData {
public:
nsCacheMetaData() : mBuffer(nsnull), mBufferSize(0), mMetaSize(0) { }
~nsCacheMetaData() {
mBufferSize = mMetaSize = 0;
PR_FREEIF(mBuffer);
}
const char * GetElement(const char * key);
nsresult SetElement(const char * key, const char * value);
PRUint32 Size(void) { return mMetaSize; }
nsresult FlattenMetaData(char * buffer, PRUint32 bufSize);
nsresult UnflattenMetaData(const char * buffer, PRUint32 bufSize);
nsresult VisitElements(nsICacheMetaDataVisitor * visitor);
private:
nsresult EnsureBuffer(PRUint32 size);
char * mBuffer;
PRUint32 mBufferSize;
PRUint32 mMetaSize;
};
#endif // _nsCacheMetaData_h