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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.
//*****************************************************************************
// MDUtil.h
//
//
// Contains utility code for MD directory
//
//*****************************************************************************
#ifndef __MDUtil__h__
#define __MDUtil__h__
#include "metadata.h"
HRESULT _GetFixedSigOfVarArg( // S_OK or error.
PCCOR_SIGNATURE pvSigBlob, // [IN] point to a blob of COM+ method signature
ULONG cbSigBlob, // [IN] size of signature
CQuickBytes *pqbSig, // [OUT] output buffer for fixed part of VarArg Signature
ULONG *pcbSigBlob); // [OUT] number of bytes written to the above output buffer
ULONG _GetSizeOfConstantBlob(
DWORD dwCPlusTypeFlag, // ELEMENT_TYPE_*
void *pValue, // BLOB value
ULONG cchString); // Size of string in wide chars, or -1 for auto.
//*********************************************************************
// APIs to help look up TypeRef using CORPATH environment variable
//*********************************************************************
class CORPATHService
{
public:
static HRESULT GetClassFromCORPath(
__in __in_z LPWSTR wzClassname, // fully qualified class name
mdTypeRef tr, // TypeRef to be resolved
IMetaModelCommon *pCommon, // Scope in which the TypeRef is defined.
REFIID riid,
IUnknown **ppIScope,
mdTypeDef *ptd); // [OUT] typedef corresponding the typeref
static HRESULT GetClassFromDir(
__in __in_z LPWSTR wzClassname, // Fully qualified class name.
__in __in_z LPWSTR dir, // Directory to try.
int iLen, // Length of the directory.
mdTypeRef tr, // TypeRef to resolve.
IMetaModelCommon *pCommon, // Scope in which the TypeRef is defined.
REFIID riid,
IUnknown **ppIScope,
mdTypeDef *ptd); // [OUT] typedef
static HRESULT FindTypeDef(
__in __in_z LPWSTR wzModule, // name of the module that we are going to open
mdTypeRef tr, // TypeRef to resolve.
IMetaModelCommon *pCommon, // Scope in which the TypeRef is defined.
REFIID riid,
IUnknown **ppIScope,
mdTypeDef *ptd ); // [OUT] the type that we resolve to
}; // class CORPATHService
#if defined(FEATURE_METADATA_IN_VM) || defined(FEATURE_METADATA_STANDALONE_WINRT)
class RegMeta;
//*********************************************************************
//
// Structure to record the all loaded modules and helpers.
// RegMeta instance is added to the global variable that is tracking
// the opened scoped. This happens in RegMeta's constructor.
// In RegMeta's destructor, the RegMeta pointer will be removed from
// this list.
//
//*********************************************************************
class UTSemReadWrite;
#define LOADEDMODULES_HASH_SIZE 47
class LOADEDMODULES : public CDynArray<RegMeta *>
{
private:
static HRESULT InitializeStatics();
// Global per-process list of loaded modules
static LOADEDMODULES * s_pLoadedModules;
public:
static void DeleteStatics();
// Named for locking macros - see code:LOCKREAD
static UTSemReadWrite * m_pSemReadWrite;
static RegMeta *(m_HashedModules[LOADEDMODULES_HASH_SIZE]);
static ULONG HashFileName(LPCWSTR szName);
static HRESULT AddModuleToLoadedList(RegMeta *pRegMeta);
static BOOL RemoveModuleFromLoadedList(RegMeta *pRegMeta); // true if found and removed.
static HRESULT FindCachedReadOnlyEntry(LPCWSTR szName, DWORD dwOpenFlags, RegMeta **ppMeta);
#ifdef FEATURE_METADATA_IN_VM
static HRESULT ResolveTypeRefWithLoadedModules(
mdTypeRef tkTypeRef, // [IN] TypeRef to be resolved.
RegMeta * pTypeRefRegMeta, // [IN] Scope in which the TypeRef is defined.
IMetaModelCommon * pTypeRefScope, // [IN] Scope in which the TypeRef is defined.
REFIID riid, // [IN] iid for the return interface.
IUnknown ** ppIScope, // [OUT] Return interface.
mdTypeDef * ptd); // [OUT] TypeDef corresponding the TypeRef.
#endif //FEATURE_METADATA_IN_VM
#ifdef _DEBUG
static BOOL IsEntryInList(RegMeta *pRegMeta);
#endif
}; // class LOADEDMODULES
#endif //FEATURE_METADATA_IN_VM || FEATURE_METADATA_STANDALONE_WINRT
#endif // __MDUtil__h__
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