/*++

Copyright (c) 2000  Microsoft Corporation

Module Name:

    ijetwriter.h

Abstract:

    Definition of CVssIJetWriter class

    Brian Berkowitz  [brianb]  3/17/2000

TBD:
    
    Add comments.

Revision History:

    Name        Date        Comments
    brianb      03/17/2000  Created
    mikejohn    04/03/2000  Added extra methods for OnIdentify()
    mikejohn    08/21/2000  165913: Deallocate memory on class destruction
                161899: Add methods for matching paths in exclude list
    mikejohn    09/18/2000  176860: Added calling convention methods where missing

--*/

////////////////////////////////////////////////////////////////////////
//  Standard foo for file name aliasing.  This code block must be after
//  all includes of VSS header files.
//
#ifdef VSS_FILE_ALIAS
#undef VSS_FILE_ALIAS
#endif
#define VSS_FILE_ALIAS "INCIJWRH"
//
////////////////////////////////////////////////////////////////////////

class CVssIJetWriter;

typedef CVssIJetWriter *PVSSIJETWRITER;


// actual writer class
class CVssIJetWriter : public CVssWriter
    {

// Constructors and destructors
public:
    virtual STDMETHODCALLTYPE ~CVssIJetWriter();

    STDMETHODCALLTYPE CVssIJetWriter() :
        m_wszWriterName(NULL),
        m_wszFilesToInclude(NULL),
        m_wszFilesToExclude(NULL),
        m_idWriter(GUID_NULL),
        m_pwrapper(NULL),
        m_bSystemService(false),
        m_bBootableSystemState(false),
        m_pIMetadata(NULL)
        
        
        {
        InitializeListHead (&m_leFilesToIncludeEntries);
        InitializeListHead (&m_leFilesToExcludeEntries);
        }
    
    static HRESULT STDMETHODCALLTYPE Initialize
        (
        IN VSS_ID idWriter,
        IN LPCWSTR wszWriterName,
        IN bool bSystemService,
        IN bool bBootableSystemState,
        LPCWSTR wszFilesToInclude,
        LPCWSTR wszFilesToExclude,
        IN CVssJetWriter *pWriter,
        OUT void **ppInstanceCreated
        );

    static void STDMETHODCALLTYPE Uninitialize(IN PVSSIJETWRITER pInstance);

    // callback for identify event
    virtual bool STDMETHODCALLTYPE OnIdentify(IN IVssCreateWriterMetadata *pMetadata);

    // callback for prepare backup event
    virtual bool STDMETHODCALLTYPE OnPrepareBackup(IN IVssWriterComponents *pComponent);

    // called at Prepare to freeze
    virtual bool STDMETHODCALLTYPE OnPrepareSnapshot();

    // called at freeze
    virtual bool STDMETHODCALLTYPE OnFreeze();

    // called at thaw
    virtual bool STDMETHODCALLTYPE OnThaw();

    // called at post snapshot
    virtual bool STDMETHODCALLTYPE OnPostSnapshot(IN IVssWriterComponents *pComponent);

    // called when timeout occurs
    virtual bool STDMETHODCALLTYPE OnAbort();

    // callback on backup complete event
    virtual bool STDMETHODCALLTYPE OnBackupComplete(IN IVssWriterComponents *pComponent);

    // callback on prerestore event
    virtual bool STDMETHODCALLTYPE OnPreRestore(IN IVssWriterComponents *pComponent);


    // callback on postrestore event
    virtual bool STDMETHODCALLTYPE OnPostRestore(IN IVssWriterComponents *pComponent);

private:

    JET_ERR CVssIJetWriter::TranslateJetError(JET_ERR err, CVssFunctionTracer &ft, CVssDebugInfo &dbgInfo);

    HRESULT InternalInitialize
        (
        IN VSS_ID idWriter,
        IN LPCWSTR wszWriterName,
        IN bool bSystemService,
        IN bool bBootableSystemState,
        IN LPCWSTR wszFilesToInclude,
        IN LPCWSTR wszFilesToExclude
        );

    bool PreProcessIncludeExcludeLists  (bool bProcessingIncludeList);
    bool ProcessIncludeExcludeLists     (bool bProcessingIncludeList);
    void PostProcessIncludeExcludeLists (bool bProcessingIncludeList);

    bool ProcessJetInstance (JET_INSTANCE_INFO *pInstanceInfo);

    BOOL CheckExcludedFileListForMatch (LPCWSTR pwszDatabaseFilePath,
                        LPCWSTR pwszDatabaseFileSpec);

    bool FCheckInstanceVolumeDependencies
        (
        IN const JET_INSTANCE_INFO * pInstanceInfo
        ) const;

    bool FCheckVolumeDependencies
        (
        IN unsigned long cInstanceInfo,
        IN JET_INSTANCE_INFO *aInstanceInfo
        ) const;

    bool FCheckPathVolumeDependencies(IN const char * szPath) const;

    LPCWSTR GetApplicationName() const { return m_wszWriterName; }

    VSS_ID               m_idWriter;
    LPWSTR               m_wszWriterName;
    JET_OSSNAPID             m_idJet;
    CVssJetWriter           *m_pwrapper;
    LPWSTR               m_wszFilesToInclude;
    LPWSTR               m_wszFilesToExclude;
    bool                 m_bSystemService;
    bool                 m_bBootableSystemState;
    IVssCreateWriterMetadata    *m_pIMetadata;
    LIST_ENTRY           m_leFilesToIncludeEntries;
    LIST_ENTRY           m_leFilesToExcludeEntries;
    };