110 lines
2.0 KiB
C++
110 lines
2.0 KiB
C++
#ifndef _STREAMCONTEXT_HXX_
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#define _STREAMCONTEXT_HXX_
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#include "ulcontext.hxx"
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#define STREAM_CONTEXT_SIGNATURE (DWORD)'XTCS'
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#define STREAM_CONTEXT_SIGNATURE_FREE (DWORD)'xtcs'
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class STREAM_CONTEXT
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{
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public:
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STREAM_CONTEXT( UL_CONTEXT * ulContext );
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virtual ~STREAM_CONTEXT();
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BOOL
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CheckSignature(
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VOID
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) const
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{
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return _dwSignature == STREAM_CONTEXT_SIGNATURE;
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}
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virtual
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HRESULT
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ProcessRawReadData(
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RAW_STREAM_INFO * pRawStreamInfo,
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BOOL * pfReadMore,
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BOOL * pfComplete
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) = 0;
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virtual
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HRESULT
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ProcessRawWriteData(
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RAW_STREAM_INFO * pRawStreamInfo,
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BOOL * pfComplete
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) = 0;
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virtual
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HRESULT
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ProcessNewConnection(
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CONNECTION_INFO * pConnectionInfo
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) = 0;
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virtual
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HRESULT
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SendDataBack(
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RAW_STREAM_INFO * pRawStreamInfo
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)
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{
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return NO_ERROR;
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}
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virtual
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VOID
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ProcessConnectionClose(
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VOID
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)
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{
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}
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static
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HRESULT
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Initialize(
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VOID
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);
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static
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VOID
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Terminate(
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VOID
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);
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static
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VOID
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WaitForContextDrain(
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VOID
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);
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UL_CONTEXT *
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QueryUlContext(
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VOID
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) const
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{
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DBG_ASSERT( _pUlContext != NULL );
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return _pUlContext;
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}
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private:
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DWORD _dwSignature;
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//
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// Maintain list of stream contexts
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//
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LIST_ENTRY _ListEntry;
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//
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// UL Context
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//
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UL_CONTEXT * _pUlContext;
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static LIST_ENTRY sm_ListHead;
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static CRITICAL_SECTION sm_csContextList;
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static DWORD sm_cContexts;
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};
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#endif
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