645 lines
14 KiB
C++
645 lines
14 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2000 Microsoft Corporation
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//
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// Module Name:
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// CClusterUtils.cpp
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//
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// Description:
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// This file contains the definition of the CClusterUtils
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// class.
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//
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// Documentation:
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//
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// Header File:
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// CClusterUtils.h
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//
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// Maintained By:
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// Galen Barbee (GalenB) 14-JUN-2000
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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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#include "pch.h"
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#include "CClusterUtils.h"
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//////////////////////////////////////////////////////////////////////////////
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// Constant Definitions
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//////////////////////////////////////////////////////////////////////////////
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DEFINE_THISCLASS( "CClusterUtils" );
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//*************************************************************************//
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/////////////////////////////////////////////////////////////////////////////
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// CClusterUtils class
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/////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusterUtils::CClusterUtils()
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//
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// Description:
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// Constructor of the CClusterUtils 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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CClusterUtils::CClusterUtils( void )
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{
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TraceFunc( "" );
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TraceFuncExit();
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} //*** CClusterUtils::CClusterUtils
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusterUtils::~CClusterUtils()
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//
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// Description:
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// Desstructor of the CClusterUtils 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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CClusterUtils::~CClusterUtils( void )
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{
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TraceFunc( "" );
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TraceFuncExit();
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} //*** CClusterUtils::~CClusterUtils
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusterUtils::HrIsGroupOwnedByThisNode()
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//
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// Description:
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// Is the passed in group owned by the passes in node name?
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// Arguments:
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//
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//
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// Return Value:
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// S_OK
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// The group is owned by the node.
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//
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// S_FALSE
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// The group is not owned by the node.
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//
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// Win32 Error
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// An error occurred.
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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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HRESULT
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CClusterUtils::HrIsGroupOwnedByThisNode(
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HGROUP hGroupIn,
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BSTR bstrNodeNameIn
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)
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{
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TraceFunc1( "bstrNodeNameIn = '%ls'", bstrNodeNameIn == NULL ? L"<null>" : bstrNodeNameIn );
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Assert( bstrNodeNameIn != NULL );
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HRESULT hr;
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DWORD sc;
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WCHAR * pszNodeName = NULL;
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DWORD cchNodeName = 33;
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CLUSTER_GROUP_STATE cgs;
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int idx;
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pszNodeName = new WCHAR[ cchNodeName ];
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if ( pszNodeName == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if:
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for ( idx = 0; ; idx++ )
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{
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Assert( idx < 2 );
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cgs = GetClusterGroupState( hGroupIn, pszNodeName, &cchNodeName );
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sc = GetLastError();
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if ( sc == ERROR_MORE_DATA )
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{
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delete [] pszNodeName;
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pszNodeName = NULL;
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cchNodeName++;
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pszNodeName = new WCHAR[ cchNodeName ];
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if ( pszNodeName == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if:
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continue;
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} // if:
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if ( cgs == ClusterGroupStateUnknown )
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{
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TW32( sc );
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hr = HRESULT_FROM_WIN32( sc );
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goto Cleanup;
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} // if:
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if ( _wcsicmp( bstrNodeNameIn, pszNodeName ) == 0 )
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{
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hr = S_OK;
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} // if:
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else
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{
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hr = S_FALSE;
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} // else:
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break;
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} // for:
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Cleanup:
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delete [] pszNodeName;
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HRETURN( hr );
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} //*** CClusterUtils::HrIsGroupOwnedByThisNode()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusterUtils:HrIsNodeClustered
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//
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// Description:
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// Is this node a member of a cluster?
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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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// The node is clustered.
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//
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// S_FALSE
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// The node is not clustered.
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//
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// Win32 Error
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// something failed.
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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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HRESULT
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CClusterUtils::HrIsNodeClustered( void )
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{
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TraceFunc( "" );
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HRESULT hr = S_FALSE;
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DWORD sc;
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DWORD dwClusterState;
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sc = TW32( GetNodeClusterState( NULL, &dwClusterState ) );
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if ( sc != ERROR_SUCCESS )
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{
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hr = THR( HRESULT_FROM_WIN32( sc ) );
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goto Cleanup;
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} // if : GetClusterState() failed
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if ( ( dwClusterState == ClusterStateRunning ) || ( dwClusterState == ClusterStateNotRunning ) )
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{
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hr = S_OK;
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} // if:
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Cleanup:
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HRETURN( hr );
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} //*** CClusterUtils::HrIsNodeClustered()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusterUtils:HrEnumNodeResources
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//
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// Description:
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// Enumerate the resources owned by this node.
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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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// Success.
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//
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// Win32 Error
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// something failed.
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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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HRESULT
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CClusterUtils::HrEnumNodeResources( BSTR bstrNodeNameIn )
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{
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TraceFunc1( "bstrNodeNameIn = '%ls'", bstrNodeNameIn == NULL ? L"<null>" : bstrNodeNameIn );
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HRESULT hr = S_FALSE;
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DWORD sc;
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DWORD idx;
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HCLUSTER hCluster = NULL;
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HCLUSENUM hEnum = NULL;
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DWORD dwType;
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WCHAR * pszGroupName = NULL;
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DWORD cchGroupName = 33;
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HGROUP hGroup = NULL;
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hCluster = OpenCluster( NULL );
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if ( hCluster == NULL )
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{
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sc = TW32( GetLastError() );
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hr = HRESULT_FROM_WIN32( hr );
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goto Cleanup;
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} // if:
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hEnum = ClusterOpenEnum( hCluster, CLUSTER_ENUM_GROUP );
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if ( hEnum == NULL )
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{
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sc = TW32( GetLastError() );
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hr = HRESULT_FROM_WIN32( hr );
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goto Cleanup;
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} // if:
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pszGroupName = new WCHAR[ cchGroupName ];
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if ( pszGroupName == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if:
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for ( idx = 0; ; )
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{
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sc = ClusterEnum( hEnum, idx, &dwType, pszGroupName, &cchGroupName );
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if ( sc == ERROR_SUCCESS )
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{
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hGroup = OpenClusterGroup( hCluster, pszGroupName );
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if ( hGroup == NULL )
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{
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sc = TW32( GetLastError() );
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hr = HRESULT_FROM_WIN32( sc );
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goto Cleanup;
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} // if:
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hr = STHR( HrIsGroupOwnedByThisNode( hGroup, bstrNodeNameIn ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if:
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if ( hr == S_OK )
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{
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hr = THR( HrLoadGroupResources( hCluster, hGroup ) );
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} // if:
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CloseClusterGroup( hGroup );
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hGroup = NULL;
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idx++;
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continue;
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} // if:
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if ( sc == ERROR_MORE_DATA )
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{
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delete [] pszGroupName;
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pszGroupName = NULL;
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cchGroupName++;
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pszGroupName = new WCHAR[ cchGroupName ];
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if ( pszGroupName == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if:
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continue;
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} // if:
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if ( sc == ERROR_NO_MORE_ITEMS )
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{
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hr = S_OK;
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break;
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} // if:
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TW32( sc );
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hr = HRESULT_FROM_WIN32( sc );
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break;
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} // for:
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Cleanup:
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if ( hGroup != NULL )
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{
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CloseClusterGroup( hGroup );
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} // if:
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if ( hEnum != NULL )
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{
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ClusterCloseEnum( hEnum );
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} // if:
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if ( hCluster != NULL )
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{
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CloseCluster( hCluster );
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} // if:
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delete [] pszGroupName;
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HRETURN( hr );
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} //*** CClusterUtils::HrEnumNodeResources()
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/////////////////////////////////////////////////////////////////////////////
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//++
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|
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//
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// CClusterUtils::HrLoadGroupResources()
|
||
|
|
//
|
||
|
|
// Description:
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||
|
|
//
|
||
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|
// Arguments:
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||
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|
//
|
||
|
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//
|
||
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|
// Return Value:
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||
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|
//
|
||
|
|
//
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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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||
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|
HRESULT
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CClusterUtils::HrLoadGroupResources(
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HCLUSTER hClusterIn,
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HGROUP hGroupIn
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|
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)
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|
{
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TraceFunc( "" );
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|
|
|
||
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HRESULT hr = S_OK;
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DWORD sc;
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HGROUPENUM hEnum = NULL;
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WCHAR * pszResourceName = NULL;
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DWORD cchResourceName = 33;
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DWORD dwType;
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DWORD idx;
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HRESOURCE hResource = NULL;
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hEnum = ClusterGroupOpenEnum( hGroupIn, CLUSTER_GROUP_ENUM_CONTAINS );
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if ( hEnum == NULL )
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{
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sc = TW32( GetLastError() );
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hr = HRESULT_FROM_WIN32( sc );
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goto Cleanup;
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|
} // if:
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|
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pszResourceName = new WCHAR[ cchResourceName ];
|
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|
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if ( pszResourceName == NULL )
|
||
|
|
{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if:
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||
|
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|
|
for ( idx = 0; ; )
|
||
|
|
{
|
||
|
|
sc = ClusterGroupEnum( hEnum, idx, &dwType, pszResourceName, &cchResourceName );
|
||
|
|
if ( sc == ERROR_SUCCESS )
|
||
|
|
{
|
||
|
|
hResource = OpenClusterResource( hClusterIn, pszResourceName );
|
||
|
|
if ( hResource == NULL )
|
||
|
|
{
|
||
|
|
sc = TW32( GetLastError() );
|
||
|
|
hr = HRESULT_FROM_WIN32( sc );
|
||
|
|
goto Cleanup;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
hr = STHR( HrNodeResourceCallback( hClusterIn, hResource ) );
|
||
|
|
if ( FAILED( hr ) )
|
||
|
|
{
|
||
|
|
goto Cleanup;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
CloseClusterResource( hResource );
|
||
|
|
hResource = NULL;
|
||
|
|
|
||
|
|
idx++;
|
||
|
|
continue;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
if ( sc == ERROR_MORE_DATA )
|
||
|
|
{
|
||
|
|
delete [] pszResourceName;
|
||
|
|
pszResourceName = NULL;
|
||
|
|
cchResourceName++;
|
||
|
|
|
||
|
|
pszResourceName = new WCHAR[ cchResourceName ];
|
||
|
|
if ( pszResourceName == NULL )
|
||
|
|
{
|
||
|
|
hr = THR( E_OUTOFMEMORY );
|
||
|
|
goto Cleanup;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
continue;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
if ( sc == ERROR_NO_MORE_ITEMS )
|
||
|
|
{
|
||
|
|
hr = S_OK;
|
||
|
|
break;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
TW32( sc );
|
||
|
|
hr = HRESULT_FROM_WIN32( sc );
|
||
|
|
break;
|
||
|
|
} // for:
|
||
|
|
|
||
|
|
Cleanup:
|
||
|
|
|
||
|
|
if ( hResource != NULL )
|
||
|
|
{
|
||
|
|
CloseClusterResource( hResource );
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
if ( hEnum != NULL )
|
||
|
|
{
|
||
|
|
ClusterGroupCloseEnum( hEnum );
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
delete [] pszResourceName;
|
||
|
|
|
||
|
|
HRETURN( hr );
|
||
|
|
|
||
|
|
} //*** CClusterUtils::HrLoadGroupResources()
|
||
|
|
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
//++
|
||
|
|
//
|
||
|
|
// CClusterUtils:HrGetQuorumResourceName()
|
||
|
|
//
|
||
|
|
// Description:
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// None.
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
// S_OK
|
||
|
|
// Success.
|
||
|
|
//
|
||
|
|
// Win32 Error
|
||
|
|
// something failed.
|
||
|
|
//
|
||
|
|
// Remarks:
|
||
|
|
// None.
|
||
|
|
//
|
||
|
|
//--
|
||
|
|
//////////////////////////////////////////////////////////////////////////////
|
||
|
|
HRESULT
|
||
|
|
CClusterUtils::HrGetQuorumResourceName(
|
||
|
|
BSTR * pbstrQuorumResourceNameOut
|
||
|
|
)
|
||
|
|
{
|
||
|
|
TraceFunc( "" );
|
||
|
|
Assert( pbstrQuorumResourceNameOut != NULL );
|
||
|
|
|
||
|
|
HRESULT hr = S_OK;
|
||
|
|
HCLUSTER hCluster = NULL;
|
||
|
|
DWORD sc;
|
||
|
|
WCHAR * pszResourceName = NULL;
|
||
|
|
DWORD cchResourceName = 33;
|
||
|
|
WCHAR * pszDeviceName = NULL;
|
||
|
|
DWORD cchDeviceName = 33;
|
||
|
|
DWORD cbQuorumLog;
|
||
|
|
int idx;
|
||
|
|
|
||
|
|
hCluster = OpenCluster( NULL );
|
||
|
|
if ( hCluster == NULL )
|
||
|
|
{
|
||
|
|
sc = TW32( GetLastError() );
|
||
|
|
hr = HRESULT_FROM_WIN32( sc );
|
||
|
|
goto Cleanup;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
pszResourceName = new WCHAR[ cchResourceName ];
|
||
|
|
if ( pszResourceName == NULL )
|
||
|
|
{
|
||
|
|
goto OutOfMemory;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
pszDeviceName = new WCHAR[ cchDeviceName ];
|
||
|
|
if ( pszDeviceName == NULL )
|
||
|
|
{
|
||
|
|
goto OutOfMemory;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
for ( idx = 0; ; idx++ )
|
||
|
|
{
|
||
|
|
Assert( idx < 2 );
|
||
|
|
|
||
|
|
sc = GetClusterQuorumResource( hCluster, pszResourceName, &cchResourceName, pszDeviceName, &cchDeviceName, &cbQuorumLog );
|
||
|
|
if ( sc == ERROR_MORE_DATA )
|
||
|
|
{
|
||
|
|
delete [] pszResourceName;
|
||
|
|
pszResourceName = NULL;
|
||
|
|
cchResourceName++;
|
||
|
|
|
||
|
|
delete [] pszDeviceName;
|
||
|
|
pszDeviceName = NULL;
|
||
|
|
cchDeviceName++;
|
||
|
|
|
||
|
|
pszResourceName = new WCHAR[ cchResourceName ];
|
||
|
|
if ( pszResourceName == NULL )
|
||
|
|
{
|
||
|
|
goto OutOfMemory;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
pszDeviceName = new WCHAR[ cchDeviceName ];
|
||
|
|
if ( pszDeviceName == NULL )
|
||
|
|
{
|
||
|
|
goto OutOfMemory;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
continue;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
if ( sc == ERROR_SUCCESS )
|
||
|
|
{
|
||
|
|
*pbstrQuorumResourceNameOut = TraceSysAllocString( pszResourceName );
|
||
|
|
if ( *pbstrQuorumResourceNameOut == NULL )
|
||
|
|
{
|
||
|
|
goto OutOfMemory;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
break;
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
TW32( sc );
|
||
|
|
hr = HRESULT_FROM_WIN32( sc );
|
||
|
|
goto Cleanup;
|
||
|
|
} // for:
|
||
|
|
|
||
|
|
hr = S_OK;
|
||
|
|
goto Cleanup;
|
||
|
|
|
||
|
|
OutOfMemory:
|
||
|
|
|
||
|
|
hr = THR( E_OUTOFMEMORY );
|
||
|
|
|
||
|
|
Cleanup:
|
||
|
|
|
||
|
|
if ( hCluster != NULL )
|
||
|
|
{
|
||
|
|
CloseCluster( hCluster );
|
||
|
|
} // if:
|
||
|
|
|
||
|
|
delete [] pszResourceName;
|
||
|
|
delete [] pszDeviceName;
|
||
|
|
|
||
|
|
HRETURN( hr );
|
||
|
|
|
||
|
|
} //*** CClusterUtils::HrGetQuorumResourceName()
|