1 files changed, 57 insertions, 0 deletions
diff --git a/src/md/hotdata/hottable.h b/src/md/hotdata/hottable.h
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+++ b/src/md/hotdata/hottable.h
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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+// 
+// File: HotTable.h
+// 
+
+// 
+// Class code:MetaData::HotTable stores hot table records cache, a cache of often-accessed 
+// table records stored only in NGEN images.
+// The cache is created using IBC logging.
+// 
+// ======================================================================================
+
+#pragma once
+
+#include "external.h"
+
+#include "hotdataformat.h"
+
+namespace MetaData
+{
+
+// --------------------------------------------------------------------------------------
+// 
+// This class stores hot table records cache, a cache of often-accessed table records stored only in NGEN 
+// images.
+// The cache is created using IBC logging.
+// 
+class HotTable
+{
+public:
+    __checkReturn
+    static HRESULT GetData(
+                        UINT32 nRowIndex, 
+        __deref_out_opt BYTE **ppRecord, 
+                        UINT32 cbRecordSize, 
+                        struct HotTableHeader *pHotTableHeader);
+    
+    inline static struct HotTableHeader *GetTableHeader(
+        struct HotTablesDirectory *pHotTablesDirectory, 
+        UINT32                     nTableIndex)
+    {
+        _ASSERTE(pHotTablesDirectory != NULL);
+        
+        INT32 nTableOffset = pHotTablesDirectory->m_rgTableHeader_SignedOffset[nTableIndex];
+        _ASSERTE(nTableOffset != 0);
+        
+        BYTE *pHotTableHeaderData = ((BYTE *)pHotTablesDirectory) + nTableOffset;
+        return (struct HotTableHeader *)pHotTableHeaderData;
+    }
+    
+    static void CheckTables(struct HotTablesDirectory *pHotTablesDirectory);
+    
+};  // class HotTable
+
+};  // namespace MetaData