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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
//
// File: HotHeap.h
//
//
// Class code:MetaData::HotHeap represents a hot heap in MetaData hot stream.
//
// ======================================================================================
#pragma once
#include "external.h"
namespace MetaData
{
// Forward declarations
struct HotHeapHeader;
// --------------------------------------------------------------------------------------
//
// This class represents a hot heap in MetaData hot stream.
//
class HotHeap
{
friend class VerifyLayoutsMD;
private:
struct HotHeapHeader *m_pHotHeapHeader;
private:
friend class HotHeapsDirectoryIterator;
// Initializes hot heap from its header and data.
__checkReturn
HRESULT Initialize(struct HotHeapHeader *pHotHeapHeader, DataBuffer hotHeapData);
public:
HotHeap()
{ m_pHotHeapHeader = NULL; }
HotHeap(const HotHeap &source)
{ m_pHotHeapHeader = source.m_pHotHeapHeader; }
void Clear()
{ m_pHotHeapHeader = NULL; }
// Gets stored data at index.
// Returns S_FALSE if data index is not stored in hot heap.
__checkReturn
HRESULT GetData(
UINT32 nDataIndex,
__out DataBlob *pData);
inline BOOL IsEmpty() const
{ return m_pHotHeapHeader == NULL; }
#ifdef _DEBUG_METADATA
// Validates hot heap structure (extension of code:Initialize checks).
__checkReturn
HRESULT Debug_Validate();
#endif //_DEBUG_METADATA
}; // class HotHeap
}; // namespace MetaData
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