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832 lines
21 KiB
832 lines
21 KiB
//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2001 Microsoft Corporation
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//
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// Module Name:
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// EvictNotify.cpp
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//
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// Description:
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// This file contains the implementation of the CEvictNotify
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// class.
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//
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// Maintained By:
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// Galen Barbee (GalenB) 20-SEP-2001
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//
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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// Include Files
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//////////////////////////////////////////////////////////////////////////////
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// The precompiled header for this library
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#include "Pch.h"
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// The header file for this class
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#include "EvictNotify.h"
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#include "clusrtl.h"
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// For IClusCfgNodeInfo and related interfaces
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#include <ClusCfgServer.h>
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// For IClusCfgServer and related interfaces
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#include <ClusCfgPrivate.h>
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// For CClCfgSrvLogger
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#include <Logger.h>
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//////////////////////////////////////////////////////////////////////////////
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// Macro Definitions
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//////////////////////////////////////////////////////////////////////////////
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DEFINE_THISCLASS( "CEvictNotify" );
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::CEvictNotify
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//
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// Description:
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// Constructor of the CEvictNotify class. This initializes
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// the m_cRef variable to 1 instead of 0 to account of possible
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// QueryInterface failure in DllGetClassObject.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// None.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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CEvictNotify::CEvictNotify( void )
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: m_cRef( 1 )
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{
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TraceFunc( "" );
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m_bstrNodeName = NULL;
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m_plLogger = NULL;
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// Increment the count of components in memory so the DLL hosting this
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// object cannot be unloaded.
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InterlockedIncrement( &g_cObjects );
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TraceFlow1( "Component count = %d.", g_cObjects );
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TraceFuncExit();
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} //*** CEvictNotify::CEvictNotify
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::~CEvictNotify
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//
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// Description:
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// Destructor of the CEvictNotify class.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// None.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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CEvictNotify::~CEvictNotify( void )
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{
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TraceFunc( "" );
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if ( m_plLogger != NULL )
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{
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m_plLogger->Release();
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} // if:
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TraceSysFreeString( m_bstrNodeName );
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// There's going to be one less component in memory. Decrement component count.
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InterlockedDecrement( &g_cObjects );
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TraceFlow1( "Component count = %d.", g_cObjects );
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TraceFuncExit();
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} //*** CEvictNotify::~CEvictNotify
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// HRESULT
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// CEvictNotify::S_HrCreateInstance(
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// IUnknown ** ppunkOut
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// )
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//
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// Description:
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// Creates a CEvictNotify instance.
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//
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// Arguments:
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// ppunkOut
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// The IUnknown interface of the new object.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// E_OUTOFMEMORY
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// Not enough memory to create the object.
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//
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// other HRESULTs
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// Object initialization failed.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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HRESULT
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CEvictNotify::S_HrCreateInstance( IUnknown ** ppunkOut )
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{
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TraceFunc( "" );
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Assert( ppunkOut != NULL );
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HRESULT hr = S_OK;
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CEvictNotify * pEvictNotify = NULL;
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if ( ppunkOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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// Allocate memory for the new object.
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pEvictNotify = new CEvictNotify();
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if ( pEvictNotify == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if: out of memory
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// Initialize the new object.
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hr = THR( pEvictNotify->HrInit() );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if: the object could not be initialized.
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hr = THR( pEvictNotify->QueryInterface( IID_IUnknown, reinterpret_cast< void ** >( ppunkOut ) ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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Cleanup:
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if ( pEvictNotify != NULL )
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{
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pEvictNotify->Release();
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} // if: the pointer to the notification object is not NULL
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HRETURN( hr );
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} //*** CEvictNotify::S_HrCreateInstance
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::AddRef
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//
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// Description:
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// Increment the reference count of this object by one.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// The new reference count.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_( ULONG )
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CEvictNotify::AddRef( void )
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{
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TraceFunc( "[IUnknown]" );
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InterlockedIncrement( &m_cRef );
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CRETURN( m_cRef );
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} //*** CEvictNotify::AddRef
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::Release
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//
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// Description:
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// Decrement the reference count of this object by one.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// The new reference count.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_( ULONG )
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CEvictNotify::Release( void )
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{
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TraceFunc( "[IUnknown]" );
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LONG cRef;
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cRef = InterlockedDecrement( &m_cRef );
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if ( cRef == 0 )
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{
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TraceDo( delete this );
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} // if: reference count decremented to zero
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CRETURN( cRef );
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} //*** CEvictNotify::Release
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::QueryInterface
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//
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// Description:
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// Query this object for the passed in interface.
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//
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// Arguments:
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// riidIn
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// Id of interface requested.
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//
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// ppvOut
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// Pointer to the requested interface.
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//
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// Return Value:
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// S_OK
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// If the interface is available on this object.
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//
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// E_NOINTERFACE
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// If the interface is not available.
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//
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// E_POINTER
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// ppvOut was NULL.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEvictNotify::QueryInterface(
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REFIID riidIn
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, void ** ppvOut
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)
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{
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TraceQIFunc( riidIn, ppvOut );
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HRESULT hr = S_OK;
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//
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// Validate arguments.
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//
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Assert( ppvOut != NULL );
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if ( ppvOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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//
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// Handle known interfaces.
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//
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if ( IsEqualIID( riidIn, IID_IUnknown ) )
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{
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*ppvOut = static_cast< IClusCfgEvictNotify * >( this );
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} // if: IUnknown
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else if ( IsEqualIID( riidIn, IID_IClusCfgEvictNotify ) )
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{
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*ppvOut = TraceInterface( __THISCLASS__, IClusCfgEvictNotify, this, 0 );
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} // else if: IClusCfgEvictNotify
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else if ( IsEqualIID( riidIn, IID_IClusCfgCallback ) )
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{
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*ppvOut = TraceInterface( __THISCLASS__, IClusCfgCallback, this, 0 );
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} // else if: IClusCfgCallback
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else
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{
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*ppvOut = NULL;
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hr = E_NOINTERFACE;
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} // else
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//
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// Add a reference to the interface if successful.
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//
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if ( SUCCEEDED( hr ) )
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{
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((IUnknown *) *ppvOut)->AddRef();
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} // if: success
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Cleanup:
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QIRETURN_IGNORESTDMARSHALLING( hr, riidIn );
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} //*** CEvictNotify::QueryInterface
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::HrInit
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//
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// Description:
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// Second phase of a two phase constructor.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// S_OK
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// If the call succeeded
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//
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// Other HRESULTs
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// If the call failed.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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HRESULT
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CEvictNotify::HrInit( void )
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{
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TraceFunc( "" );
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HRESULT hr = S_OK;
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IServiceProvider * psp = NULL;
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ILogManager * plm = NULL;
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// IUnknown
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Assert( m_cRef == 1 );
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//
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// Get a ClCfgSrv ILogger instance.
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//
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hr = THR( CoCreateInstance(
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CLSID_ServiceManager
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, NULL
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, CLSCTX_INPROC_SERVER
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, IID_IServiceProvider
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, reinterpret_cast< void ** >( &psp )
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) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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hr = THR( psp->TypeSafeQS( CLSID_LogManager, ILogManager, &plm ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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hr = THR( plm->GetLogger( &m_plLogger ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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//
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// Save off the local computer name.
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// If we can't get the fully-qualified name, just get the NetBIOS name.
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//
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hr = THR( HrGetComputerName(
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ComputerNameDnsFullyQualified
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, &m_bstrNodeName
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, TRUE // fBestEffortIn
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) );
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if ( FAILED( hr ) )
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{
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THR( hr );
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LogMsg( L"[EN] An error occurred trying to get the fully-qualified Dns name for the local machine during initialization. Status code is= %1!#08x!.", hr );
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goto Cleanup;
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} // if: error occurred getting computer name
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Cleanup:
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if ( psp != NULL )
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{
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psp->Release();
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}
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if ( plm != NULL )
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{
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plm->Release();
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}
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HRETURN( hr );
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} //*** CEvictNotify::HrInit
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEvictNotify::SendNotifications
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//
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// Description:
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// This method is called by the Cluster Service to inform the implementor
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// of this interface to send out notification that a node has been evicted
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// from the cluster to interested listeners.
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//
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// Arguments:
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// pcszNodeNameIn
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// The name of the cluster node that was evicted.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// Other HRESULTs
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// The call failed.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEvictNotify::SendNotifications(
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LPCWSTR pcszNodeNameIn
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)
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{
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TraceFunc( "[IClusCfgEvictNotify]" );
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HRESULT hr = S_OK;
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//
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// Send out the notifications
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//
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hr = THR( HrNotifyListeners( pcszNodeNameIn ) );
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if ( FAILED( hr ) )
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{
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LogMsg( "[EN] Error %#08x occurred trying to notify cluster evict listeners.", hr );
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goto Cleanup;
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} // if: something went wrong while sending out notifications
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LogMsg( "[EN] Sending of cluster evict notifications complete for node %ws. (hr = %#08x)", pcszNodeNameIn, hr );
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Cleanup:
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HRETURN( hr );
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} //*** CEvictNotify::SendNotifications
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// HRESULT
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// CEvictNotify::HrNotifyListeners
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//
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// Description:
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// Enumerate all components on the local computer registered for cluster
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// evict notification.
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//
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// Arguments:
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// None.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// other HRESULTs
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// Something went wrong during the enumeration.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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HRESULT
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CEvictNotify::HrNotifyListeners(
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LPCWSTR pcszNodeNameIn
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)
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{
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TraceFunc( "" );
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const UINT uiCHUNK_SIZE = 16;
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HRESULT hr = S_OK;
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ICatInformation * pciCatInfo = NULL;
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IEnumCLSID * psleEvictListenerClsidEnum = NULL;
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ULONG cReturned = 0;
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CATID rgCatIdsImplemented[ 1 ];
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rgCatIdsImplemented[ 0 ] = CATID_ClusCfgEvictListeners;
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//
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// Enumerate all the enumerators registered in the
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// CATID_ClusCfgEvictListeners category
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//
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hr = THR(
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CoCreateInstance(
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CLSID_StdComponentCategoriesMgr
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, NULL
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, CLSCTX_SERVER
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, IID_ICatInformation
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, reinterpret_cast< void ** >( &pciCatInfo )
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)
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);
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|
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if ( FAILED( hr ) )
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{
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LogMsg( "[EN] Error %#08x occurred trying to get a pointer to the enumerator of the CATID_ClusCfgEvictListeners category.", hr );
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goto Cleanup;
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} // if: we could not get a pointer to the ICatInformation interface
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|
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//
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// Get a pointer to the enumerator of the CLSIDs that belong to the
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// CATID_ClusCfgEvictListeners category.
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//
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hr = THR(
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pciCatInfo->EnumClassesOfCategories(
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1
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, rgCatIdsImplemented
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, 0
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, NULL
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, &psleEvictListenerClsidEnum
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)
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);
|
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if ( FAILED( hr ) )
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{
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LogMsg( "[EN] Error %#08x occurred trying to get a pointer to the enumerator of the CATID_ClusCfgEvictListeners category.", hr );
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goto Cleanup;
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} // if: we could not get a pointer to the IEnumCLSID interface
|
|
|
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//
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// Enumerate the CLSIDs of the registered evict listeners
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//
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do
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|
{
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CLSID rgEvictListenerClsids[ uiCHUNK_SIZE ];
|
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ULONG idxCLSID;
|
|
|
|
cReturned = 0;
|
|
hr = STHR( psleEvictListenerClsidEnum->Next( uiCHUNK_SIZE , rgEvictListenerClsids , &cReturned ) );
|
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if ( FAILED( hr ) )
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{
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LogMsg( "[EN] Error %#08x occurred trying enumerate evict listener components.", hr );
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goto Cleanup;
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} // if: we could not get the next set of CLSIDs
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|
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//
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// hr may be S_FALSE here, so reset it.
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//
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hr = S_OK;
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for ( idxCLSID = 0; idxCLSID < cReturned; ++idxCLSID )
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{
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hr = THR( HrProcessListener( rgEvictListenerClsids[ idxCLSID ], pcszNodeNameIn ) );
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if ( FAILED( hr ) )
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{
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//
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// The processing of one of the listeners failed.
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// Log the error, but continue processing other listeners.
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//
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TraceMsgGUID( mtfALWAYS, "The CLSID of the failed listener is ", rgEvictListenerClsids[ idxCLSID ] );
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LogMsg( "[EN] Error %#08x occurred trying to process a cluster evict listener. Other listeners will be processed.", hr );
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hr = S_OK;
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} // if: this enumerator failed
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} // for: iterate through the returned CLSIDs
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}
|
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while( cReturned > 0 ); // while: there are still CLSIDs to be enumerated
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|
|
Cleanup:
|
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|
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if ( pciCatInfo != NULL )
|
|
{
|
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pciCatInfo->Release();
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} // if: we had obtained a pointer to the ICatInformation interface
|
|
|
|
if ( psleEvictListenerClsidEnum != NULL )
|
|
{
|
|
psleEvictListenerClsidEnum->Release();
|
|
} // if: we had obtained a pointer to the enumerator of evict listener CLSIDs
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEvictNotify::HrNotifyListeners
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// HRESULT
|
|
// CEvictNotify::HrProcessListener
|
|
//
|
|
// Description:
|
|
// This function instantiates a cluster evict listener component
|
|
// and calls the appropriate methods.
|
|
//
|
|
// Arguments:
|
|
// rclsidListenerCLSIDIn
|
|
// CLSID of the evict listener component
|
|
//
|
|
// pcszNodeNameIn
|
|
// The name of the node that was evicted.
|
|
//
|
|
// Return Values:
|
|
// S_OK
|
|
// Success.
|
|
//
|
|
// other HRESULTs
|
|
// Something went wrong during the processing of the listener.
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CEvictNotify::HrProcessListener(
|
|
const CLSID & rclsidListenerCLSIDIn
|
|
, LPCWSTR pcszNodeNameIn
|
|
)
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
HRESULT hr = S_OK;
|
|
IClusCfgInitialize * pciInitialize = NULL;
|
|
IClusCfgEvictListener * pcslEvictListener = NULL;
|
|
|
|
TraceMsgGUID( mtfALWAYS, "The CLSID of this evict listener is ", rclsidListenerCLSIDIn );
|
|
|
|
//
|
|
// Create the component represented by the CLSID passed in
|
|
//
|
|
hr = THR(
|
|
CoCreateInstance(
|
|
rclsidListenerCLSIDIn
|
|
, NULL
|
|
, CLSCTX_INPROC_SERVER
|
|
, __uuidof( pcslEvictListener )
|
|
, reinterpret_cast< void ** >( &pcslEvictListener )
|
|
)
|
|
);
|
|
if ( FAILED( hr ) )
|
|
{
|
|
LogMsg( "[EN] Error %#08x occurred trying to create a cluster evict listener component.", hr );
|
|
goto Cleanup;
|
|
} // if: we could not create the cluster evict listener component
|
|
|
|
// Initialize the listener if supported.
|
|
hr = pcslEvictListener->TypeSafeQI( IClusCfgInitialize, &pciInitialize );
|
|
if ( FAILED( hr ) && ( hr != E_NOINTERFACE ) )
|
|
{
|
|
LogMsg( "[EN] Error %#08x occurred trying to query for IClusCfgInitialize on the listener component.", THR( hr ) );
|
|
goto Cleanup;
|
|
} // if: we could not create the cluster startup listener component
|
|
|
|
// Initialize the listener if supported.
|
|
if ( pciInitialize != NULL )
|
|
{
|
|
hr = THR( pciInitialize->Initialize( static_cast< IClusCfgCallback * >( this ), GetUserDefaultLCID() ) );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
LogMsg( "[EN] Error %#08x occurred trying to initialize the listener component.", hr );
|
|
goto Cleanup;
|
|
} // if:
|
|
|
|
pciInitialize->Release();
|
|
pciInitialize = NULL;
|
|
} // if: pciInitialize != NULL
|
|
|
|
// Notify this listener.
|
|
hr = THR( pcslEvictListener->EvictNotify( pcszNodeNameIn ) );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
LogMsg( "[EN] Error %#08x occurred trying to notify a cluster evict listener.", hr );
|
|
goto Cleanup;
|
|
} // if: this notification
|
|
|
|
Cleanup:
|
|
|
|
if ( pcslEvictListener != NULL )
|
|
{
|
|
pcslEvictListener->Release();
|
|
} // if: we had obtained a pointer to the evict listener interface
|
|
|
|
if ( pciInitialize != NULL )
|
|
{
|
|
pciInitialize->Release();
|
|
} // if: we obtained a pointer to the initialize interface
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEvictNotify::HrProcessListener
|
|
|
|
|
|
//****************************************************************************
|
|
//
|
|
// IClusCfgCallback
|
|
//
|
|
//****************************************************************************
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// CEvictNotify::SendStatusReport(
|
|
// LPCWSTR pcszNodeNameIn
|
|
// , CLSID clsidTaskMajorIn
|
|
// , CLSID clsidTaskMinorIn
|
|
// , ULONG ulMinIn
|
|
// , ULONG ulMaxIn
|
|
// , ULONG ulCurrentIn
|
|
// , HRESULT hrStatusIn
|
|
// , LPCWSTR pcszDescriptionIn
|
|
// , FILETIME * pftTimeIn
|
|
// , LPCWSTR pcszReferenceIn
|
|
// )
|
|
//
|
|
// Description:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Return Value:
|
|
//
|
|
// Remarks:
|
|
// None.
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CEvictNotify::SendStatusReport(
|
|
LPCWSTR pcszNodeNameIn
|
|
, CLSID clsidTaskMajorIn
|
|
, CLSID clsidTaskMinorIn
|
|
, ULONG ulMinIn
|
|
, ULONG ulMaxIn
|
|
, ULONG ulCurrentIn
|
|
, HRESULT hrStatusIn
|
|
, LPCWSTR pcszDescriptionIn
|
|
, FILETIME * pftTimeIn
|
|
, LPCWSTR pcszReferenceIn
|
|
)
|
|
{
|
|
TraceFunc1( "[IClusCfgCallback] pcszDescriptionIn = '%s'", pcszDescriptionIn == NULL ? TEXT("<null>") : pcszDescriptionIn );
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
if ( pcszNodeNameIn == NULL )
|
|
{
|
|
pcszNodeNameIn = m_bstrNodeName;
|
|
} // if:
|
|
|
|
TraceMsg( mtfFUNC, L"pcszNodeNameIn = %s", pcszNodeNameIn );
|
|
TraceMsgGUID( mtfFUNC, "clsidTaskMajorIn ", clsidTaskMajorIn );
|
|
TraceMsgGUID( mtfFUNC, "clsidTaskMinorIn ", clsidTaskMinorIn );
|
|
TraceMsg( mtfFUNC, L"ulMinIn = %u", ulMinIn );
|
|
TraceMsg( mtfFUNC, L"ulMaxIn = %u", ulMaxIn );
|
|
TraceMsg( mtfFUNC, L"ulCurrentIn = %u", ulCurrentIn );
|
|
TraceMsg( mtfFUNC, L"hrStatusIn = %#08x", hrStatusIn );
|
|
TraceMsg( mtfFUNC, L"pcszDescriptionIn = '%ws'", ( pcszDescriptionIn ? pcszDescriptionIn : L"<null>" ) );
|
|
//
|
|
// TODO: 21 NOV 2000 GalenB
|
|
//
|
|
// How do we log pftTimeIn?
|
|
//
|
|
TraceMsg( mtfFUNC, L"pcszReferenceIn = '%ws'", ( pcszReferenceIn ? pcszReferenceIn : L"<null>" ) );
|
|
|
|
hr = THR( CClCfgSrvLogger::S_HrLogStatusReport(
|
|
m_plLogger
|
|
, pcszNodeNameIn
|
|
, clsidTaskMajorIn
|
|
, clsidTaskMinorIn
|
|
, ulMinIn
|
|
, ulMaxIn
|
|
, ulCurrentIn
|
|
, hrStatusIn
|
|
, pcszDescriptionIn
|
|
, pftTimeIn
|
|
, pcszReferenceIn
|
|
) );
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEvictNotify::SendStatusReport
|
|
|