242 lines
5.9 KiB
C++
242 lines
5.9 KiB
C++
//---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1995
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//
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// File: cenumvar.cxx
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//
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// Contents: Windows NT 3.5 Enumerator Code
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//
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// CNWCOMPATNamespaceEnum::Create
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// CNWCOMPATNamespaceEnum::CNWCOMPATNamespaceEnum
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// CNWCOMPATNamespaceEnum::~CNWCOMPATNamespaceEnum
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// CNWCOMPATNamespaceEnum::QueryInterface
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// CNWCOMPATNamespaceEnum::AddRef
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// CNWCOMPATNamespaceEnum::Release
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// CNWCOMPATNamespaceEnum::Next
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// CNWCOMPATNamespaceEnum::Skip
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// CNWCOMPATNamespaceEnum::Clone
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//
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// History:
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//----------------------------------------------------------------------------
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#include "NWCOMPAT.hxx"
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#pragma hdrstop
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//+---------------------------------------------------------------------------
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//
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// Function: CNWCOMPATNamespaceEnum::Create
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//
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// Synopsis:
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//
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// Arguments: [pCollection]
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// [ppEnumVariant]
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//
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// Returns: HRESULT
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//
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// Modifies:
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//
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// History: 01-30-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNWCOMPATNamespaceEnum::Create(
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CNWCOMPATNamespaceEnum FAR* FAR* ppenumvariant
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)
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{
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HRESULT hr = S_OK;
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CNWCOMPATNamespaceEnum FAR* penumvariant = NULL;
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penumvariant = new CNWCOMPATNamespaceEnum();
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if (penumvariant == NULL){
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hr = E_OUTOFMEMORY;
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BAIL_ON_FAILURE(hr);
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}
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hr = NWApiGetAnyBinderyHandle(
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&penumvariant->_hConn
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);
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*ppenumvariant = penumvariant;
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RRETURN(hr);
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error:
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if (penumvariant) {
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delete penumvariant;
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}
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RRETURN_EXP_IF_ERR(hr);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CNWCOMPATNamespaceEnum::CNWCOMPATNamespaceEnum
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//
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// Synopsis:
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//
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//
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// Arguments:
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//
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//
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// Returns:
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//
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// Modifies:
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//
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// History: 01-30-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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CNWCOMPATNamespaceEnum::CNWCOMPATNamespaceEnum()
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{
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_dwResumeObjectID = 0xffffffff;
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_hConn = NULL;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CNWCOMPATNamespaceEnum::~CNWCOMPATNamespaceEnum
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//
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// Synopsis:
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//
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//
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// Arguments:
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//
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// Returns:
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//
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// Modifies:
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//
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// History: 01-30-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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CNWCOMPATNamespaceEnum::~CNWCOMPATNamespaceEnum()
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{
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if (_hConn) {
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NWApiReleaseBinderyHandle(_hConn);
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}
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CNWCOMPATNamespaceEnum::Next
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//
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// Synopsis: Returns cElements number of requested ADs objects in the
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// array supplied in pvar.
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//
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// Arguments: [cElements] -- The number of elements requested by client
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// [pvar] -- ptr to array of VARIANTs to for return objects
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// [pcElementFetched] -- if non-NULL, then number of elements
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// -- actually returned is placed here
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//
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// Returns: HRESULT -- S_OK if number of elements requested are returned
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// -- S_FALSE if number of elements is < requested
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//
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// Modifies:
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//
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// History:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP
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CNWCOMPATNamespaceEnum::Next(
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ULONG cElements,
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VARIANT FAR* pvar,
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ULONG FAR* pcElementFetched
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)
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{
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ULONG cElementFetched = 0;
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HRESULT hr = S_OK;
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hr = EnumComputers(
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cElements,
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pvar,
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&cElementFetched
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);
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if (pcElementFetched) {
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*pcElementFetched = cElementFetched;
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}
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RRETURN_EXP_IF_ERR(hr);
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}
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//----------------------------------------------------------------------------
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//
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// Function: CNWCOMPATNamespaceEnum::EnumComputers
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNWCOMPATNamespaceEnum::EnumComputers(
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ULONG cElements,
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VARIANT FAR* pvar,
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ULONG FAR* pcElementFetched
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)
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{
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HRESULT hr = S_OK;
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IDispatch *pDispatch = NULL;
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DWORD i = 0;
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while (i < cElements) {
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hr = GetComputerObject(&pDispatch);
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if (hr == S_FALSE) {
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break;
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}
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VariantInit(&pvar[i]);
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pvar[i].vt = VT_DISPATCH;
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pvar[i].pdispVal = pDispatch;
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(*pcElementFetched)++;
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i++;
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}
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return(hr);
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}
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//----------------------------------------------------------------------------
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//
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// Function: CNWCOMPATNamespaceEnum::GetComputerObject
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNWCOMPATNamespaceEnum::GetComputerObject(
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IDispatch ** ppDispatch
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)
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{
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LPWSTR pszObjectName = NULL;
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HRESULT hr = S_OK;
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*ppDispatch = NULL;
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hr = NWApiObjectEnum(
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_hConn,
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OT_FILE_SERVER,
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&pszObjectName,
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&_dwResumeObjectID
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);
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BAIL_ON_FAILURE(hr);
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//
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// Now send back the current object
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//
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hr = CNWCOMPATComputer::CreateComputer(
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bstrProviderPrefix,
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pszObjectName,
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ADS_OBJECT_BOUND,
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IID_IDispatch,
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(void **)ppDispatch
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);
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BAIL_ON_FAILURE(hr);
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error:
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if (pszObjectName) {
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FreeADsStr(pszObjectName);
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}
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RRETURN_ENUM_STATUS(hr);
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}
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