151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
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/*++
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<EFBFBD> 1998 Seagate Software, Inc. All rights reserved
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Module Name:
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RmsDrive.h
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Abstract:
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Declaration of the CRmsDrive class
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Author:
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Brian Dodd [brian] 15-Nov-1996
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Revision History:
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--*/
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#ifndef _RMSDRIVE_
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#define _RMSDRIVE_
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#include "resource.h" // resource symbols
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#include "RmsDvice.h" // CRmsDevice
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/*++
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Class Name:
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CRmsDrive
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Class Description:
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A CRmsDrive represents a specific data transfer device: a disk, tape,
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or optical drive.
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Each drive is member of at least one DriveClass. The DriveClass contains
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additional properties that are associated with a Drive (See CRmsDriveClass).
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--*/
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class CRmsDrive :
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public CComDualImpl<IRmsDrive, &IID_IRmsDrive, &LIBID_RMSLib>,
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public CRmsDevice, // inherits CRmsChangerElement
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public CWsbObject, // inherits CComObjectRoot
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public CComCoClass<CRmsDrive,&CLSID_CRmsDrive>
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{
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public:
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CRmsDrive() {}
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BEGIN_COM_MAP(CRmsDrive)
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COM_INTERFACE_ENTRY2(IDispatch, IRmsDrive)
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COM_INTERFACE_ENTRY(IRmsDrive)
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COM_INTERFACE_ENTRY(IRmsComObject)
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COM_INTERFACE_ENTRY(IRmsChangerElement)
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COM_INTERFACE_ENTRY(IRmsDevice)
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COM_INTERFACE_ENTRY(ISupportErrorInfo)
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COM_INTERFACE_ENTRY2(IPersist, IPersistStream)
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COM_INTERFACE_ENTRY(IPersistStream)
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COM_INTERFACE_ENTRY(IWsbCollectable)
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COM_INTERFACE_ENTRY(IWsbPersistStream)
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COM_INTERFACE_ENTRY(IWsbTestable)
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END_COM_MAP()
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DECLARE_REGISTRY_RESOURCEID(IDR_RmsDrive)
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// CComObjectRoot
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public:
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STDMETHOD(FinalConstruct)(void);
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STDMETHOD(FinalRelease)(void);
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// IPersist
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public:
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STDMETHOD(GetClassID)(CLSID *pClsid);
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// IPersistStream
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public:
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STDMETHOD(GetSizeMax)(ULARGE_INTEGER* pSize);
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STDMETHOD(Load)(IStream* pStream);
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STDMETHOD(Save)(IStream* pStream, BOOL clearDirty);
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// IWsbCollectable
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public:
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STDMETHOD(CompareTo)(IUnknown* pCollectable, SHORT* pResult);
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WSB_FROM_CWSBOBJECT;
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// IWsbTestable
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public:
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STDMETHOD(Test)(USHORT *pPassed, USHORT *pFailed);
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// IRmsDrive
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public:
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STDMETHOD(GetMountReference)( OUT LONG *pRefs );
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STDMETHOD(ResetMountReference)();
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STDMETHOD(SelectForMount)();
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STDMETHOD(AddMountReference)();
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STDMETHOD(ReleaseMountReference)(IN DWORD dwOptions = RMS_NONE);
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STDMETHOD(CreateDataMover)( OUT IDataMover **ptr );
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STDMETHOD(ReleaseDataMover)( IN IDataMover *ptr );
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STDMETHOD(Eject)(void);
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STDMETHOD(GetLargestFreeSpace)( OUT LONGLONG *freeSpace, OUT LONGLONG *capacity );
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STDMETHOD(UnloadNow)(void);
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// CRmsDrive member functions
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public:
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HRESULT FlushBuffers(void);
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HRESULT Unload(void);
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private:
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enum { // Class specific constants:
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//
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Version = 1, // Class version, this should be
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// incremented each time the
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// the class definition changes.
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}; //
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LONG m_MountReference; // A reference count for the number
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// concurrent mounts for the mounted
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// Cartridge. When zero the Cartridge
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// can be safely returned to it's
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// storage location.
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FILETIME m_UnloadNowTime; // Indicates the time when the media
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// should be dismounted.
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HANDLE m_UnloadNowEvent; // When signal the drive will unload immediately.
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HANDLE m_UnloadedEvent; // When signal the drive has been unloaded.
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HANDLE m_UnloadThreadHandle; // The thread handle to the thread that unloads the drive.
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CRITICAL_SECTION m_CriticalSection; // Object sychronization support
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static int s_InstanceCount; // Counter of the number of object instances.
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HRESULT Lock(void);
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HRESULT Unlock(void);
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// Thread routines
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public:
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static DWORD WINAPI StartUnloadThread(IN LPVOID pv);
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};
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#endif // _RMSDRIVE_
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