180 lines
2 KiB
C++
180 lines
2 KiB
C++
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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buffer.hxx
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Abstract:
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This contains all buffer class definition.
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No reallocing of buffers is done. A buffer must be big enough
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to hold both buffer for a cat.
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Environment:
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ULIB, User Mode
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Notes:
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Revision History:
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--*/
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//
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// This class is no longer supported.
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//
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#define _BUFFER_
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#if !defined (_BUFFER_)
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#define _BUFFER_
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#include "error.hxx"
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DECLARE_CLASS( BUFFER );
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class BUFFER : public OBJECT {
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friend WSTRING;
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public:
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VIRTUAL
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~BUFFER (
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);
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NONVIRTUAL
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BOOLEAN
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BuffCat (
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IN PCBUFFER BufferToCat
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);
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NONVIRTUAL
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PCVOID
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GetBufferPtr (
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) CONST;
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NONVIRTUAL
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BOOLEAN
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PutBuffer (
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IN PCBUFFER BufferToCopy
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);
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NONVIRTUAL
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ULONG
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QueryBytesInBuffer (
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) CONST;
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NONVIRTUAL
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BOOLEAN
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SetBuffer (
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IN PVOID InitialBuffer,
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IN ULONG SizeOfBuffer
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);
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protected:
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DECLARE_CONSTRUCTOR( BUFFER );
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NONVIRTUAL
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BOOLEAN
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BufferCopyAt (
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IN PCVOID BufferToCopy,
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IN ULONG BytesToCopy,
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IN ULONG StartingByte DEFAULT 0
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);
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NONVIRTUAL
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BOOLEAN
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DeleteAt (
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IN ULONG cbToDelete,
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IN ULONG oStartDelete
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);
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NONVIRTUAL
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BOOLEAN
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InsertAt (
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IN PCVOID BufferToCopy,
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IN ULONG cbToCopy,
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IN ULONG oStartCopy
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);
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NONVIRTUAL
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PVOID
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ReAllocate (
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IN ULONG NewCount
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);
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private:
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NONVIRTUAL
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VOID
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Construct (
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);
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PVOID pBuffer; // pointer to the data byffer
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ULONG cb; // count of bytes used
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ULONG _BufSize; // count of bytes in buffer
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STATIC
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ULONG _ThresHold;
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};
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INLINE
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PCVOID
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BUFFER::GetBufferPtr (
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) CONST
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/*++
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Routine Description:
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Fetch pointer to internal buffer
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Arguments:
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None
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Return Value:
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PCVOID - pointer to internal buffer
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--*/
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{
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return ( pBuffer );
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}
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INLINE
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ULONG
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BUFFER::QueryBytesInBuffer (
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) CONST
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/*++
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Routine Description:
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Fetch size in bytes of internal buffer
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Arguments:
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None
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Return Value:
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ULONG - size of internal buffer in bytes
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--*/
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{
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return ( cb );
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}
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#endif // _BUFFER_
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