| /* |
| * Compound Storage (32 bit version) |
| * |
| * Implemented using the documentation of the LAOLA project at |
| * <URL:http://wwwwbs.cs.tu-berlin.de/~schwartz/pmh/index.html> |
| * (Thanks to Martin Schwartz <schwartz@cs.tu-berlin.de>) |
| * |
| * This include file contains definitions of types and function |
| * prototypes that are used in the many files implementing the |
| * storage functionality |
| * |
| * Copyright 1998,1999 Francis Beaudet |
| * Copyright 1998,1999 Thuy Nguyen |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #ifndef __STORAGE32_H__ |
| #define __STORAGE32_H__ |
| |
| #include <stdarg.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winnt.h" |
| #include "objbase.h" |
| |
| /* |
| * Definitions for the file format offsets. |
| */ |
| static const ULONG OFFSET_BIGBLOCKSIZEBITS = 0x0000001e; |
| static const ULONG OFFSET_SMALLBLOCKSIZEBITS = 0x00000020; |
| static const ULONG OFFSET_BBDEPOTCOUNT = 0x0000002C; |
| static const ULONG OFFSET_ROOTSTARTBLOCK = 0x00000030; |
| static const ULONG OFFSET_SBDEPOTSTART = 0x0000003C; |
| static const ULONG OFFSET_SBDEPOTCOUNT = 0x00000040; |
| static const ULONG OFFSET_EXTBBDEPOTSTART = 0x00000044; |
| static const ULONG OFFSET_EXTBBDEPOTCOUNT = 0x00000048; |
| static const ULONG OFFSET_BBDEPOTSTART = 0x0000004C; |
| static const ULONG OFFSET_PS_NAME = 0x00000000; |
| static const ULONG OFFSET_PS_NAMELENGTH = 0x00000040; |
| static const ULONG OFFSET_PS_PROPERTYTYPE = 0x00000042; |
| static const ULONG OFFSET_PS_PREVIOUSPROP = 0x00000044; |
| static const ULONG OFFSET_PS_NEXTPROP = 0x00000048; |
| static const ULONG OFFSET_PS_DIRPROP = 0x0000004C; |
| static const ULONG OFFSET_PS_GUID = 0x00000050; |
| static const ULONG OFFSET_PS_TSS1 = 0x00000064; |
| static const ULONG OFFSET_PS_TSD1 = 0x00000068; |
| static const ULONG OFFSET_PS_TSS2 = 0x0000006C; |
| static const ULONG OFFSET_PS_TSD2 = 0x00000070; |
| static const ULONG OFFSET_PS_STARTBLOCK = 0x00000074; |
| static const ULONG OFFSET_PS_SIZE = 0x00000078; |
| static const WORD DEF_BIG_BLOCK_SIZE_BITS = 0x0009; |
| static const WORD DEF_SMALL_BLOCK_SIZE_BITS = 0x0006; |
| static const WORD DEF_BIG_BLOCK_SIZE = 0x0200; |
| static const WORD DEF_SMALL_BLOCK_SIZE = 0x0040; |
| static const ULONG BLOCK_EXTBBDEPOT = 0xFFFFFFFC; |
| static const ULONG BLOCK_SPECIAL = 0xFFFFFFFD; |
| static const ULONG BLOCK_END_OF_CHAIN = 0xFFFFFFFE; |
| static const ULONG BLOCK_UNUSED = 0xFFFFFFFF; |
| static const ULONG PROPERTY_NULL = 0xFFFFFFFF; |
| |
| #define PROPERTY_NAME_MAX_LEN 0x20 |
| #define PROPERTY_NAME_BUFFER_LEN 0x40 |
| |
| #define PROPSET_BLOCK_SIZE 0x00000080 |
| |
| /* |
| * Property type of relation |
| */ |
| #define PROPERTY_RELATION_PREVIOUS 0 |
| #define PROPERTY_RELATION_NEXT 1 |
| #define PROPERTY_RELATION_DIR 2 |
| |
| /* |
| * Property type constants |
| */ |
| #define PROPTYPE_STORAGE 0x01 |
| #define PROPTYPE_STREAM 0x02 |
| #define PROPTYPE_ROOT 0x05 |
| |
| /* |
| * These defines assume a hardcoded blocksize. The code will assert |
| * if the blocksize is different. Some changes will have to be done if it |
| * becomes the case. |
| */ |
| #define BIG_BLOCK_SIZE 0x200 |
| #define COUNT_BBDEPOTINHEADER 109 |
| #define LIMIT_TO_USE_SMALL_BLOCK 0x1000 |
| #define NUM_BLOCKS_PER_DEPOT_BLOCK 128 |
| |
| /* |
| * These are signatures to detect the type of Document file. |
| */ |
| static const BYTE STORAGE_magic[8] ={0xd0,0xcf,0x11,0xe0,0xa1,0xb1,0x1a,0xe1}; |
| static const BYTE STORAGE_oldmagic[8] ={0xd0,0xcf,0x11,0xe0,0x0e,0x11,0xfc,0x0d}; |
| |
| /* |
| * Forward declarations of all the structures used by the storage |
| * module. |
| */ |
| typedef struct StorageBaseImpl StorageBaseImpl; |
| typedef struct StorageImpl StorageImpl; |
| typedef struct StorageInternalImpl StorageInternalImpl; |
| typedef struct BlockChainStream BlockChainStream; |
| typedef struct SmallBlockChainStream SmallBlockChainStream; |
| typedef struct IEnumSTATSTGImpl IEnumSTATSTGImpl; |
| typedef struct StgProperty StgProperty; |
| typedef struct StgStreamImpl StgStreamImpl; |
| |
| /* |
| * This utility structure is used to read/write the information in a storage |
| * property. |
| */ |
| struct StgProperty |
| { |
| WCHAR name[PROPERTY_NAME_MAX_LEN]; |
| WORD sizeOfNameString; |
| BYTE propertyType; |
| ULONG previousProperty; |
| ULONG nextProperty; |
| ULONG dirProperty; |
| GUID propertyUniqueID; |
| ULONG timeStampS1; |
| ULONG timeStampD1; |
| ULONG timeStampS2; |
| ULONG timeStampD2; |
| ULONG startingBlock; |
| ULARGE_INTEGER size; |
| }; |
| |
| /************************************************************************* |
| * Big Block File support |
| * |
| * The big block file is an abstraction of a flat file separated in |
| * same sized blocks. The implementation for the methods described in |
| * this section appear in stg_bigblockfile.c |
| */ |
| |
| /* |
| * Declaration of the data structures |
| */ |
| typedef struct BigBlockFile BigBlockFile,*LPBIGBLOCKFILE; |
| typedef struct MappedPage MappedPage,*LPMAPPEDPAGE; |
| |
| struct BigBlockFile |
| { |
| BOOL fileBased; |
| ULARGE_INTEGER filesize; |
| ULONG blocksize; |
| HANDLE hfile; |
| HANDLE hfilemap; |
| DWORD flProtect; |
| MappedPage *maplist; |
| MappedPage *victimhead, *victimtail; |
| ULONG num_victim_pages; |
| ILockBytes *pLkbyt; |
| HGLOBAL hbytearray; |
| LPVOID pbytearray; |
| }; |
| |
| /* |
| * Declaration of the functions used to manipulate the BigBlockFile |
| * data structure. |
| */ |
| BigBlockFile* BIGBLOCKFILE_Construct(HANDLE hFile, |
| ILockBytes* pLkByt, |
| DWORD openFlags, |
| ULONG blocksize, |
| BOOL fileBased); |
| void BIGBLOCKFILE_Destructor(LPBIGBLOCKFILE This); |
| void* BIGBLOCKFILE_GetBigBlock(LPBIGBLOCKFILE This, ULONG index); |
| void* BIGBLOCKFILE_GetROBigBlock(LPBIGBLOCKFILE This, ULONG index); |
| void BIGBLOCKFILE_ReleaseBigBlock(LPBIGBLOCKFILE This, void *pBlock); |
| void BIGBLOCKFILE_SetSize(LPBIGBLOCKFILE This, ULARGE_INTEGER newSize); |
| ULARGE_INTEGER BIGBLOCKFILE_GetSize(LPBIGBLOCKFILE This); |
| |
| /************************************************************************* |
| * Ole Convert support |
| */ |
| |
| void OLECONVERT_CreateOleStream(LPSTORAGE pStorage); |
| HRESULT OLECONVERT_CreateCompObjStream(LPSTORAGE pStorage, LPCSTR strOleTypeName); |
| |
| /**************************************************************************** |
| * Storage32BaseImpl definitions. |
| * |
| * This structure defines the base information contained in all implementations |
| * of IStorage32 contained in this file storage implementation. |
| * |
| * In OOP terms, this is the base class for all the IStorage32 implementations |
| * contained in this file. |
| */ |
| struct StorageBaseImpl |
| { |
| IStorageVtbl *lpVtbl; /* Needs to be the first item in the struct |
| * since we want to cast this in a Storage32 pointer */ |
| |
| /* |
| * Reference count of this object |
| */ |
| ULONG ref; |
| |
| /* |
| * Ancestor storage (top level) |
| */ |
| StorageImpl* ancestorStorage; |
| |
| /* |
| * Index of the property for the root of |
| * this storage |
| */ |
| ULONG rootPropertySetIndex; |
| |
| /* |
| * virtual Destructor method. |
| */ |
| void (*v_destructor)(StorageBaseImpl*); |
| }; |
| |
| |
| /* |
| * Prototypes for the methods of the Storage32BaseImpl class. |
| */ |
| HRESULT WINAPI StorageBaseImpl_QueryInterface( |
| IStorage* iface, |
| REFIID riid, |
| void** ppvObject); |
| |
| ULONG WINAPI StorageBaseImpl_AddRef( |
| IStorage* iface); |
| |
| ULONG WINAPI StorageBaseImpl_Release( |
| IStorage* iface); |
| |
| HRESULT WINAPI StorageBaseImpl_OpenStream( |
| IStorage* iface, |
| const OLECHAR* pwcsName, /* [string][in] */ |
| void* reserved1, /* [unique][in] */ |
| DWORD grfMode, /* [in] */ |
| DWORD reserved2, /* [in] */ |
| IStream** ppstm); /* [out] */ |
| |
| HRESULT WINAPI StorageBaseImpl_OpenStorage( |
| IStorage* iface, |
| const OLECHAR* pwcsName, /* [string][unique][in] */ |
| IStorage* pstgPriority, /* [unique][in] */ |
| DWORD grfMode, /* [in] */ |
| SNB snbExclude, /* [unique][in] */ |
| DWORD reserved, /* [in] */ |
| IStorage** ppstg); /* [out] */ |
| |
| HRESULT WINAPI StorageBaseImpl_EnumElements( |
| IStorage* iface, |
| DWORD reserved1, /* [in] */ |
| void* reserved2, /* [size_is][unique][in] */ |
| DWORD reserved3, /* [in] */ |
| IEnumSTATSTG** ppenum); /* [out] */ |
| |
| HRESULT WINAPI StorageBaseImpl_Stat( |
| IStorage* iface, |
| STATSTG* pstatstg, /* [out] */ |
| DWORD grfStatFlag); /* [in] */ |
| |
| HRESULT WINAPI StorageBaseImpl_RenameElement( |
| IStorage* iface, |
| const OLECHAR* pwcsOldName, /* [string][in] */ |
| const OLECHAR* pwcsNewName); /* [string][in] */ |
| |
| HRESULT WINAPI StorageBaseImpl_CreateStream( |
| IStorage* iface, |
| const OLECHAR* pwcsName, /* [string][in] */ |
| DWORD grfMode, /* [in] */ |
| DWORD reserved1, /* [in] */ |
| DWORD reserved2, /* [in] */ |
| IStream** ppstm); /* [out] */ |
| |
| HRESULT WINAPI StorageBaseImpl_SetClass( |
| IStorage* iface, |
| REFCLSID clsid); /* [in] */ |
| |
| /**************************************************************************** |
| * Storage32Impl definitions. |
| * |
| * This implementation of the IStorage32 interface represents a root |
| * storage. Basically, a document file. |
| */ |
| struct StorageImpl |
| { |
| IStorageVtbl *lpVtbl; /* Needs to be the first item in the struct |
| * since we want to cast this in a Storage32 pointer */ |
| |
| /* |
| * Declare the member of the Storage32BaseImpl class to allow |
| * casting as a Storage32BaseImpl |
| */ |
| ULONG ref; |
| struct StorageImpl* ancestorStorage; |
| ULONG rootPropertySetIndex; |
| void (*v_destructor)(struct StorageImpl*); |
| |
| /* |
| * The following data members are specific to the Storage32Impl |
| * class |
| */ |
| HANDLE hFile; /* Physical support for the Docfile */ |
| LPOLESTR pwcsName; /* Full path of the document file */ |
| |
| /* FIXME: should this be in Storage32BaseImpl ? */ |
| WCHAR filename[PROPERTY_NAME_BUFFER_LEN]; |
| |
| /* |
| * File header |
| */ |
| WORD bigBlockSizeBits; |
| WORD smallBlockSizeBits; |
| ULONG bigBlockSize; |
| ULONG smallBlockSize; |
| ULONG bigBlockDepotCount; |
| ULONG rootStartBlock; |
| ULONG smallBlockDepotStart; |
| ULONG extBigBlockDepotStart; |
| ULONG extBigBlockDepotCount; |
| ULONG bigBlockDepotStart[COUNT_BBDEPOTINHEADER]; |
| |
| ULONG blockDepotCached[NUM_BLOCKS_PER_DEPOT_BLOCK]; |
| ULONG indexBlockDepotCached; |
| ULONG prevFreeBlock; |
| |
| /* |
| * Abstraction of the big block chains for the chains of the header. |
| */ |
| BlockChainStream* rootBlockChain; |
| BlockChainStream* smallBlockDepotChain; |
| BlockChainStream* smallBlockRootChain; |
| |
| /* |
| * Pointer to the big block file abstraction |
| */ |
| BigBlockFile* bigBlockFile; |
| }; |
| |
| /* |
| * Method declaration for the Storage32Impl class |
| */ |
| |
| HRESULT WINAPI StorageImpl_CreateStorage( |
| IStorage* iface, |
| const OLECHAR* pwcsName, /* [string][in] */ |
| DWORD grfMode, /* [in] */ |
| DWORD dwStgFmt, /* [in] */ |
| DWORD reserved2, /* [in] */ |
| IStorage** ppstg); /* [out] */ |
| |
| HRESULT WINAPI StorageImpl_CopyTo( |
| IStorage* iface, |
| DWORD ciidExclude, /* [in] */ |
| const IID* rgiidExclude, /* [size_is][unique][in] */ |
| SNB snbExclude, /* [unique][in] */ |
| IStorage* pstgDest); /* [unique][in] */ |
| |
| HRESULT WINAPI StorageImpl_MoveElementTo( |
| IStorage* iface, |
| const OLECHAR* pwcsName, /* [string][in] */ |
| IStorage* pstgDest, /* [unique][in] */ |
| const OLECHAR* pwcsNewName, /* [string][in] */ |
| DWORD grfFlags); /* [in] */ |
| |
| HRESULT WINAPI StorageImpl_Commit( |
| IStorage* iface, |
| DWORD grfCommitFlags); /* [in] */ |
| |
| HRESULT WINAPI StorageImpl_Revert( |
| IStorage* iface); |
| |
| HRESULT WINAPI StorageImpl_DestroyElement( |
| IStorage* iface, |
| const OLECHAR* pwcsName); /* [string][in] */ |
| |
| HRESULT WINAPI StorageImpl_SetElementTimes( |
| IStorage* iface, |
| const OLECHAR* pwcsName, /* [string][in] */ |
| const FILETIME* pctime, /* [in] */ |
| const FILETIME* patime, /* [in] */ |
| const FILETIME* pmtime); /* [in] */ |
| |
| HRESULT WINAPI StorageImpl_SetStateBits( |
| IStorage* iface, |
| DWORD grfStateBits, /* [in] */ |
| DWORD grfMask); /* [in] */ |
| |
| HRESULT WINAPI StorageImpl_Stat(IStorage* iface, |
| STATSTG* pstatstg, /* [out] */ |
| DWORD grfStatFlag); /* [in] */ |
| |
| void StorageImpl_Destroy( |
| StorageImpl* This); |
| |
| HRESULT StorageImpl_Construct( |
| StorageImpl* This, |
| HANDLE hFile, |
| LPCOLESTR pwcsName, |
| ILockBytes* pLkbyt, |
| DWORD openFlags, |
| BOOL fileBased, |
| BOOL fileCreate); |
| |
| BOOL StorageImpl_ReadBigBlock( |
| StorageImpl* This, |
| ULONG blockIndex, |
| void* buffer); |
| |
| BOOL StorageImpl_WriteBigBlock( |
| StorageImpl* This, |
| ULONG blockIndex, |
| void* buffer); |
| |
| void* StorageImpl_GetROBigBlock( |
| StorageImpl* This, |
| ULONG blockIndex); |
| |
| void* StorageImpl_GetBigBlock( |
| StorageImpl* This, |
| ULONG blockIndex); |
| |
| void StorageImpl_ReleaseBigBlock( |
| StorageImpl* This, |
| void* pBigBlock); |
| |
| ULONG StorageImpl_GetNextFreeBigBlock( |
| StorageImpl* This); |
| |
| void StorageImpl_FreeBigBlock( |
| StorageImpl* This, |
| ULONG blockIndex); |
| |
| HRESULT StorageImpl_GetNextBlockInChain( |
| StorageImpl* This, |
| ULONG blockIndex, |
| ULONG* nextBlockIndex); |
| |
| void StorageImpl_SetNextBlockInChain( |
| StorageImpl* This, |
| ULONG blockIndex, |
| ULONG nextBlock); |
| |
| HRESULT StorageImpl_LoadFileHeader( |
| StorageImpl* This); |
| |
| void StorageImpl_SaveFileHeader( |
| StorageImpl* This); |
| |
| BOOL StorageImpl_ReadProperty( |
| StorageImpl* This, |
| ULONG index, |
| StgProperty* buffer); |
| |
| BOOL StorageImpl_WriteProperty( |
| StorageImpl* This, |
| ULONG index, |
| StgProperty* buffer); |
| |
| BlockChainStream* Storage32Impl_SmallBlocksToBigBlocks( |
| StorageImpl* This, |
| SmallBlockChainStream** ppsbChain); |
| |
| ULONG Storage32Impl_GetNextExtendedBlock(StorageImpl* This, |
| ULONG blockIndex); |
| |
| void Storage32Impl_AddBlockDepot(StorageImpl* This, |
| ULONG blockIndex); |
| |
| ULONG Storage32Impl_AddExtBlockDepot(StorageImpl* This); |
| |
| ULONG Storage32Impl_GetExtDepotBlock(StorageImpl* This, |
| ULONG depotIndex); |
| |
| void Storage32Impl_SetExtDepotBlock(StorageImpl* This, |
| ULONG depotIndex, |
| ULONG blockIndex); |
| /**************************************************************************** |
| * Storage32InternalImpl definitions. |
| * |
| * Definition of the implementation structure for the IStorage32 interface. |
| * This one implements the IStorage32 interface for storage that are |
| * inside another storage. |
| */ |
| struct StorageInternalImpl |
| { |
| IStorageVtbl *lpVtbl; /* Needs to be the first item in the struct |
| * since we want to cast this in a Storage32 pointer */ |
| |
| /* |
| * Declare the member of the Storage32BaseImpl class to allow |
| * casting as a Storage32BaseImpl |
| */ |
| ULONG ref; |
| struct StorageImpl* ancestorStorage; |
| ULONG rootPropertySetIndex; |
| void (*v_destructor)(struct StorageInternalImpl*); |
| |
| /* |
| * There is no specific data for this class. |
| */ |
| }; |
| |
| /* |
| * Method definitions for the Storage32InternalImpl class. |
| */ |
| StorageInternalImpl* StorageInternalImpl_Construct( |
| StorageImpl* ancestorStorage, |
| ULONG rootTropertyIndex); |
| |
| void StorageInternalImpl_Destroy( |
| StorageInternalImpl* This); |
| |
| HRESULT WINAPI StorageInternalImpl_Commit( |
| IStorage* iface, |
| DWORD grfCommitFlags); /* [in] */ |
| |
| HRESULT WINAPI StorageInternalImpl_Revert( |
| IStorage* iface); |
| |
| |
| /**************************************************************************** |
| * IEnumSTATSTGImpl definitions. |
| * |
| * Definition of the implementation structure for the IEnumSTATSTGImpl interface. |
| * This class allows iterating through the content of a storage and to find |
| * specific items inside it. |
| */ |
| struct IEnumSTATSTGImpl |
| { |
| IEnumSTATSTGVtbl *lpVtbl; /* Needs to be the first item in the struct |
| * since we want to cast this in a IEnumSTATSTG pointer */ |
| |
| ULONG ref; /* Reference count */ |
| StorageImpl* parentStorage; /* Reference to the parent storage */ |
| ULONG firstPropertyNode; /* Index of the root of the storage to enumerate */ |
| |
| /* |
| * The current implementation of the IEnumSTATSTGImpl class uses a stack |
| * to walk the property sets to get the content of a storage. This stack |
| * is implemented by the following 3 data members |
| */ |
| ULONG stackSize; |
| ULONG stackMaxSize; |
| ULONG* stackToVisit; |
| |
| #define ENUMSTATSGT_SIZE_INCREMENT 10 |
| }; |
| |
| /* |
| * Method definitions for the IEnumSTATSTGImpl class. |
| */ |
| HRESULT WINAPI IEnumSTATSTGImpl_QueryInterface( |
| IEnumSTATSTG* iface, |
| REFIID riid, |
| void** ppvObject); |
| |
| ULONG WINAPI IEnumSTATSTGImpl_AddRef( |
| IEnumSTATSTG* iface); |
| |
| ULONG WINAPI IEnumSTATSTGImpl_Release( |
| IEnumSTATSTG* iface); |
| |
| HRESULT WINAPI IEnumSTATSTGImpl_Next( |
| IEnumSTATSTG* iface, |
| ULONG celt, |
| STATSTG* rgelt, |
| ULONG* pceltFetched); |
| |
| HRESULT WINAPI IEnumSTATSTGImpl_Skip( |
| IEnumSTATSTG* iface, |
| ULONG celt); |
| |
| HRESULT WINAPI IEnumSTATSTGImpl_Reset( |
| IEnumSTATSTG* iface); |
| |
| HRESULT WINAPI IEnumSTATSTGImpl_Clone( |
| IEnumSTATSTG* iface, |
| IEnumSTATSTG** ppenum); |
| |
| IEnumSTATSTGImpl* IEnumSTATSTGImpl_Construct( |
| StorageImpl* This, |
| ULONG firstPropertyNode); |
| |
| void IEnumSTATSTGImpl_Destroy( |
| IEnumSTATSTGImpl* This); |
| |
| void IEnumSTATSTGImpl_PushSearchNode( |
| IEnumSTATSTGImpl* This, |
| ULONG nodeToPush); |
| |
| ULONG IEnumSTATSTGImpl_PopSearchNode( |
| IEnumSTATSTGImpl* This, |
| BOOL remove); |
| |
| ULONG IEnumSTATSTGImpl_FindProperty( |
| IEnumSTATSTGImpl* This, |
| const OLECHAR* lpszPropName, |
| StgProperty* buffer); |
| |
| INT IEnumSTATSTGImpl_FindParentProperty( |
| IEnumSTATSTGImpl *This, |
| ULONG childProperty, |
| StgProperty *currentProperty, |
| ULONG *propertyId); |
| |
| |
| /**************************************************************************** |
| * StgStreamImpl definitions. |
| * |
| * This class imlements the IStream32 inteface and represents a stream |
| * located inside a storage object. |
| */ |
| struct StgStreamImpl |
| { |
| IStreamVtbl *lpVtbl; /* Needs to be the first item in the struct |
| * since we want to cast this in a IStream pointer */ |
| |
| /* |
| * Reference count |
| */ |
| ULONG ref; |
| |
| /* |
| * Storage that is the parent(owner) of the stream |
| */ |
| StorageBaseImpl* parentStorage; |
| |
| /* |
| * Access mode of this stream. |
| */ |
| DWORD grfMode; |
| |
| /* |
| * Index of the property that owns (points to) this stream. |
| */ |
| ULONG ownerProperty; |
| |
| /* |
| * Helper variable that contains the size of the stream |
| */ |
| ULARGE_INTEGER streamSize; |
| |
| /* |
| * This is the current position of the cursor in the stream |
| */ |
| ULARGE_INTEGER currentPosition; |
| |
| /* |
| * The information in the stream is represented by a chain of small blocks |
| * or a chain of large blocks. Depending on the case, one of the two |
| * following variabled points to that information. |
| */ |
| BlockChainStream* bigBlockChain; |
| SmallBlockChainStream* smallBlockChain; |
| }; |
| |
| /* |
| * Method definition for the StgStreamImpl class. |
| */ |
| StgStreamImpl* StgStreamImpl_Construct( |
| StorageBaseImpl* parentStorage, |
| DWORD grfMode, |
| ULONG ownerProperty); |
| |
| void StgStreamImpl_Destroy( |
| StgStreamImpl* This); |
| |
| void StgStreamImpl_OpenBlockChain( |
| StgStreamImpl* This); |
| |
| HRESULT WINAPI StgStreamImpl_QueryInterface( |
| IStream* iface, |
| REFIID riid, /* [in] */ |
| void** ppvObject); /* [iid_is][out] */ |
| |
| ULONG WINAPI StgStreamImpl_AddRef( |
| IStream* iface); |
| |
| ULONG WINAPI StgStreamImpl_Release( |
| IStream* iface); |
| |
| HRESULT WINAPI StgStreamImpl_Read( |
| IStream* iface, |
| void* pv, /* [length_is][size_is][out] */ |
| ULONG cb, /* [in] */ |
| ULONG* pcbRead); /* [out] */ |
| |
| HRESULT WINAPI StgStreamImpl_Write( |
| IStream* iface, |
| const void* pv, /* [size_is][in] */ |
| ULONG cb, /* [in] */ |
| ULONG* pcbWritten); /* [out] */ |
| |
| HRESULT WINAPI StgStreamImpl_Seek( |
| IStream* iface, |
| LARGE_INTEGER dlibMove, /* [in] */ |
| DWORD dwOrigin, /* [in] */ |
| ULARGE_INTEGER* plibNewPosition); /* [out] */ |
| |
| HRESULT WINAPI StgStreamImpl_SetSize( |
| IStream* iface, |
| ULARGE_INTEGER libNewSize); /* [in] */ |
| |
| HRESULT WINAPI StgStreamImpl_CopyTo( |
| IStream* iface, |
| IStream* pstm, /* [unique][in] */ |
| ULARGE_INTEGER cb, /* [in] */ |
| ULARGE_INTEGER* pcbRead, /* [out] */ |
| ULARGE_INTEGER* pcbWritten); /* [out] */ |
| |
| HRESULT WINAPI StgStreamImpl_Commit( |
| IStream* iface, |
| DWORD grfCommitFlags); /* [in] */ |
| |
| HRESULT WINAPI StgStreamImpl_Revert( |
| IStream* iface); |
| |
| HRESULT WINAPI StgStreamImpl_LockRegion( |
| IStream* iface, |
| ULARGE_INTEGER libOffset, /* [in] */ |
| ULARGE_INTEGER cb, /* [in] */ |
| DWORD dwLockType); /* [in] */ |
| |
| HRESULT WINAPI StgStreamImpl_UnlockRegion( |
| IStream* iface, |
| ULARGE_INTEGER libOffset, /* [in] */ |
| ULARGE_INTEGER cb, /* [in] */ |
| DWORD dwLockType); /* [in] */ |
| |
| HRESULT WINAPI StgStreamImpl_Stat( |
| IStream* iface, |
| STATSTG* pstatstg, /* [out] */ |
| DWORD grfStatFlag); /* [in] */ |
| |
| HRESULT WINAPI StgStreamImpl_Clone( |
| IStream* iface, |
| IStream** ppstm); /* [out] */ |
| |
| |
| /******************************************************************************** |
| * The StorageUtl_ functions are miscelaneous utility functions. Most of which are |
| * abstractions used to read values from file buffers without having to worry |
| * about bit order |
| */ |
| void StorageUtl_ReadWord(void* buffer, ULONG offset, WORD* value); |
| void StorageUtl_WriteWord(void* buffer, ULONG offset, WORD value); |
| void StorageUtl_ReadDWord(void* buffer, ULONG offset, DWORD* value); |
| void StorageUtl_WriteDWord(void* buffer, ULONG offset, DWORD value); |
| void StorageUtl_ReadGUID(void* buffer, ULONG offset, GUID* value); |
| void StorageUtl_WriteGUID(void* buffer, ULONG offset, GUID* value); |
| void StorageUtl_CopyPropertyToSTATSTG(STATSTG* destination, |
| StgProperty* source, |
| int statFlags); |
| |
| /**************************************************************************** |
| * BlockChainStream definitions. |
| * |
| * The BlockChainStream class is a utility class that is used to create an |
| * abstraction of the big block chains in the storage file. |
| */ |
| struct BlockChainStream |
| { |
| StorageImpl* parentStorage; |
| ULONG* headOfStreamPlaceHolder; |
| ULONG ownerPropertyIndex; |
| ULONG lastBlockNoInSequence; |
| ULONG lastBlockNoInSequenceIndex; |
| ULONG tailIndex; |
| ULONG numBlocks; |
| }; |
| |
| /* |
| * Methods for the BlockChainStream class. |
| */ |
| BlockChainStream* BlockChainStream_Construct( |
| StorageImpl* parentStorage, |
| ULONG* headOfStreamPlaceHolder, |
| ULONG propertyIndex); |
| |
| void BlockChainStream_Destroy( |
| BlockChainStream* This); |
| |
| ULONG BlockChainStream_GetHeadOfChain( |
| BlockChainStream* This); |
| |
| BOOL BlockChainStream_ReadAt( |
| BlockChainStream* This, |
| ULARGE_INTEGER offset, |
| ULONG size, |
| void* buffer, |
| ULONG* bytesRead); |
| |
| BOOL BlockChainStream_WriteAt( |
| BlockChainStream* This, |
| ULARGE_INTEGER offset, |
| ULONG size, |
| const void* buffer, |
| ULONG* bytesWritten); |
| |
| BOOL BlockChainStream_SetSize( |
| BlockChainStream* This, |
| ULARGE_INTEGER newSize); |
| |
| ULARGE_INTEGER BlockChainStream_GetSize( |
| BlockChainStream* This); |
| |
| ULONG BlockChainStream_GetCount( |
| BlockChainStream* This); |
| |
| /**************************************************************************** |
| * SmallBlockChainStream definitions. |
| * |
| * The SmallBlockChainStream class is a utility class that is used to create an |
| * abstraction of the small block chains in the storage file. |
| */ |
| struct SmallBlockChainStream |
| { |
| StorageImpl* parentStorage; |
| ULONG ownerPropertyIndex; |
| }; |
| |
| /* |
| * Methods of the SmallBlockChainStream class. |
| */ |
| SmallBlockChainStream* SmallBlockChainStream_Construct( |
| StorageImpl* parentStorage, |
| ULONG propertyIndex); |
| |
| void SmallBlockChainStream_Destroy( |
| SmallBlockChainStream* This); |
| |
| ULONG SmallBlockChainStream_GetHeadOfChain( |
| SmallBlockChainStream* This); |
| |
| HRESULT SmallBlockChainStream_GetNextBlockInChain( |
| SmallBlockChainStream* This, |
| ULONG blockIndex, |
| ULONG* nextBlockIndex); |
| |
| void SmallBlockChainStream_SetNextBlockInChain( |
| SmallBlockChainStream* This, |
| ULONG blockIndex, |
| ULONG nextBlock); |
| |
| void SmallBlockChainStream_FreeBlock( |
| SmallBlockChainStream* This, |
| ULONG blockIndex); |
| |
| ULONG SmallBlockChainStream_GetNextFreeBlock( |
| SmallBlockChainStream* This); |
| |
| BOOL SmallBlockChainStream_ReadAt( |
| SmallBlockChainStream* This, |
| ULARGE_INTEGER offset, |
| ULONG size, |
| void* buffer, |
| ULONG* bytesRead); |
| |
| BOOL SmallBlockChainStream_WriteAt( |
| SmallBlockChainStream* This, |
| ULARGE_INTEGER offset, |
| ULONG size, |
| const void* buffer, |
| ULONG* bytesWritten); |
| |
| BOOL SmallBlockChainStream_SetSize( |
| SmallBlockChainStream* This, |
| ULARGE_INTEGER newSize); |
| |
| ULARGE_INTEGER SmallBlockChainStream_GetSize( |
| SmallBlockChainStream* This); |
| |
| ULONG SmallBlockChainStream_GetCount( |
| SmallBlockChainStream* This); |
| |
| |
| #endif /* __STORAGE32_H__ */ |
