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1316 lines
32 KiB
1316 lines
32 KiB
//***************************************************************************
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//
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// Copyright (c) 2000 Microsoft Corporation
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//
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// DATETIME.CPP
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//
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// alanbos 20-Jan-00 Created.
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//
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// Defines the implementation of ISWbemDateTime
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//
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//***************************************************************************
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#include <sys/timeb.h>
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#include <math.h>
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#include <time.h>
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#include <float.h>
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#include "precomp.h"
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#ifdef UTILLIB
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#include <assertbreak.h>
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#else
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#define ASSERT_BREAK(a)
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#endif //UTILLIB
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#define ISWILD(c) (L'*' == c)
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#define ISINTERVAL(c) (L':' == c)
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#define ISMINUS(c) (L'-' == c)
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#define ISPLUS(c) (L'+' == c)
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#define ISDOT(c) (L'.' == c)
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#define WILD2 L"**"
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#define WILD3 L"***"
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#define WILD4 L"****"
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#define WILD6 L"******"
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static void ui64ToFileTime(const ULONGLONG *p64,FILETIME *pft);
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//***************************************************************************
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//
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// CSWbemDateTime::CSWbemDateTime
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//
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// DESCRIPTION:
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//
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// Constructor.
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//
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//***************************************************************************
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CSWbemDateTime::CSWbemDateTime() :
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m_dwSafetyOptions (INTERFACESAFE_FOR_UNTRUSTED_DATA|
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INTERFACESAFE_FOR_UNTRUSTED_CALLER),
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m_bYearSpecified (VARIANT_TRUE),
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m_bMonthSpecified (VARIANT_TRUE),
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m_bDaySpecified (VARIANT_TRUE),
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m_bHoursSpecified (VARIANT_TRUE),
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m_bMinutesSpecified (VARIANT_TRUE),
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m_bSecondsSpecified (VARIANT_TRUE),
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m_bMicrosecondsSpecified (VARIANT_TRUE),
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m_bUTCSpecified (VARIANT_TRUE),
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m_bIsInterval (VARIANT_FALSE),
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m_iYear (0),
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m_iMonth (1),
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m_iDay (1),
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m_iHours (0),
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m_iMinutes (0),
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m_iSeconds (0),
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m_iMicroseconds (0),
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m_iUTC (0),
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m_dw100nsOverflow (0)
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{
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InterlockedIncrement(&g_cObj);
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m_Dispatch.SetObj (this, IID_ISWbemDateTime,
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CLSID_SWbemDateTime, L"SWbemDateTime");
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m_cRef=0;
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}
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//***************************************************************************
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//
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// CSWbemDateTime::~CSWbemDateTime
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//
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// DESCRIPTION:
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//
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// Destructor.
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//
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//***************************************************************************
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CSWbemDateTime::~CSWbemDateTime(void)
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{
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InterlockedDecrement(&g_cObj);
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}
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//***************************************************************************
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// HRESULT CSWbemDateTime::QueryInterface
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// long CSWbemDateTime::AddRef
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// long CSWbemDateTime::Release
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//
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// DESCRIPTION:
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//
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// Standard Com IUNKNOWN functions.
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//
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//***************************************************************************
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STDMETHODIMP CSWbemDateTime::QueryInterface (
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IN REFIID riid,
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OUT LPVOID *ppv
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)
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{
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*ppv=NULL;
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if (IID_IUnknown==riid)
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*ppv = reinterpret_cast<IUnknown*>(this);
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else if (IID_ISWbemDateTime==riid)
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*ppv = (ISWbemDateTime *)this;
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else if (IID_IDispatch==riid)
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*ppv= (IDispatch *)this;
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else if (IID_IObjectSafety==riid)
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*ppv = (IObjectSafety *)this;
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else if (IID_ISupportErrorInfo==riid)
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*ppv = (ISupportErrorInfo *)this;
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else if (IID_IProvideClassInfo==riid)
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*ppv = (IProvideClassInfo *)this;
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if (NULL!=*ppv)
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{
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((LPUNKNOWN)*ppv)->AddRef();
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return NOERROR;
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}
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return ResultFromScode(E_NOINTERFACE);
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}
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STDMETHODIMP_(ULONG) CSWbemDateTime::AddRef(void)
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{
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InterlockedIncrement(&m_cRef);
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return m_cRef;
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}
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STDMETHODIMP_(ULONG) CSWbemDateTime::Release(void)
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{
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InterlockedDecrement(&m_cRef);
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if (0L!=m_cRef)
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return m_cRef;
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delete this;
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return 0;
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}
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//***************************************************************************
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//
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// SCODE CSWbemDateTime::get_Value
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//
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// DESCRIPTION:
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//
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// Retrieve the DMTF datetime value
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//
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// PARAMETERS:
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//
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// pbsValue pointer to BSTR to hold value on return
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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STDMETHODIMP CSWbemDateTime::get_Value(
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OUT BSTR *pbsValue)
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{
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HRESULT hr = WBEM_E_FAILED;
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ResetLastErrors ();
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if (NULL == pbsValue)
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hr = WBEM_E_INVALID_PARAMETER;
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else
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{
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wchar_t dmtfValue [WBEMDT_DMTF_LEN + 1];
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dmtfValue [WBEMDT_DMTF_LEN] = NULL;
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if (m_bIsInterval)
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{
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// Intervals are easy
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swprintf (dmtfValue, L"%08d%02d%02d%02d.%06d:000", m_iDay,
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m_iHours, m_iMinutes, m_iSeconds, m_iMicroseconds);
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}
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else
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{
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if (m_bYearSpecified)
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swprintf (dmtfValue, L"%04d", m_iYear);
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else
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wcscpy (dmtfValue, WILD4);
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if (m_bMonthSpecified)
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swprintf (dmtfValue + 4, L"%02d", m_iMonth);
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else
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wcscat (dmtfValue + 4, WILD2);
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if (m_bDaySpecified)
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swprintf (dmtfValue + 6, L"%02d", m_iDay);
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else
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wcscat (dmtfValue + 6, WILD2);
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if (m_bHoursSpecified)
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swprintf (dmtfValue + 8, L"%02d", m_iHours);
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else
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wcscat (dmtfValue + 8, WILD2);
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if (m_bMinutesSpecified)
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swprintf (dmtfValue + 10, L"%02d", m_iMinutes);
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else
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wcscat (dmtfValue + 10, WILD2);
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if (m_bSecondsSpecified)
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swprintf (dmtfValue + 12, L"%02d.", m_iSeconds);
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else
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{
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wcscat (dmtfValue + 12, WILD2);
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wcscat (dmtfValue + 14, L".");
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}
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if (m_bMicrosecondsSpecified)
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swprintf (dmtfValue + 15, L"%06d", m_iMicroseconds);
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else
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wcscat (dmtfValue + 15, WILD6);
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if (m_bUTCSpecified)
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swprintf (dmtfValue + 21, L"%C%03d", (0 <= m_iUTC) ? L'+' : L'-',
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(0 <= m_iUTC) ? m_iUTC : -m_iUTC);
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else
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{
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wcscat (dmtfValue + 21, L"+");
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wcscat (dmtfValue + 22, WILD3);
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}
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}
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*pbsValue = SysAllocString (dmtfValue);
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hr = WBEM_S_NO_ERROR;
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemDateTime::put_Value
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//
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// DESCRIPTION:
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//
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// Retrieve the DMTF datetime value
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//
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// PARAMETERS:
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//
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// bsValue new value
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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STDMETHODIMP CSWbemDateTime::put_Value(
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IN BSTR bsValue)
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{
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HRESULT hr = wbemErrInvalidSyntax;
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ResetLastErrors ();
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// First check that the value is the right length
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if (bsValue && (WBEMDT_DMTF_LEN == wcslen (bsValue)))
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{
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bool err = false;
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long iYear = 0, iMonth = 1, iDay = 1, iHours = 0, iMinutes = 0,
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iSeconds = 0, iMicroseconds = 0, iUTC = 0;
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VARIANT_BOOL bYearSpecified = VARIANT_TRUE,
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bMonthSpecified = VARIANT_TRUE,
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bDaySpecified = VARIANT_TRUE,
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bHoursSpecified = VARIANT_TRUE,
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bMinutesSpecified = VARIANT_TRUE,
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bSecondsSpecified = VARIANT_TRUE,
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bMicrosecondsSpecified = VARIANT_TRUE,
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bUTCSpecified = VARIANT_TRUE,
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bIsInterval = VARIANT_TRUE;
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LPWSTR pValue = (LPWSTR) bsValue;
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// Check whether its an interval
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if (ISINTERVAL(pValue [WBEMDT_DMTF_UPOS]))
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{
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// Check that everything is a digit apart from
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// the interval separator
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for (int i = 0; i < WBEMDT_DMTF_LEN; i++)
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{
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if ((WBEMDT_DMTF_UPOS != i) &&
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(WBEMDT_DMTF_SPOS != i) && !iswdigit (pValue [i]))
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{
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err = true;
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break;
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}
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}
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if (!err)
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{
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// Now check all is within bounds
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err = !(CheckField (pValue, 8, bDaySpecified, iDay, WBEMDT_MAX_DAYINT, WBEMDT_MIN_DAYINT) &&
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(VARIANT_TRUE == bDaySpecified) &&
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CheckField (pValue+8, 2, bHoursSpecified, iHours, WBEMDT_MAX_HOURS, WBEMDT_MIN_HOURS) &&
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(VARIANT_TRUE == bHoursSpecified) &&
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CheckField (pValue+10, 2, bMinutesSpecified, iMinutes, WBEMDT_MAX_MINUTES, WBEMDT_MIN_MINUTES) &&
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(VARIANT_TRUE == bMinutesSpecified) &&
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CheckField (pValue+12, 2, bSecondsSpecified, iSeconds, WBEMDT_MAX_SECONDS, WBEMDT_MIN_SECONDS) &&
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(VARIANT_TRUE == bSecondsSpecified) &&
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(ISDOT(pValue [WBEMDT_DMTF_SPOS])) &&
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CheckField (pValue+15, 6, bMicrosecondsSpecified, iMicroseconds, WBEMDT_MAX_MICROSEC, WBEMDT_MIN_MICROSEC) &&
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(VARIANT_TRUE == bMicrosecondsSpecified) &&
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CheckUTC (pValue+21, bUTCSpecified, iUTC, false));
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}
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}
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else
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{
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// assume it's a datetime
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bIsInterval = VARIANT_FALSE;
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err = !(CheckField (pValue, 4, bYearSpecified, iYear, WBEMDT_MAX_YEAR, WBEMDT_MIN_YEAR) &&
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CheckField (pValue+4, 2, bMonthSpecified, iMonth, WBEMDT_MAX_MONTH, WBEMDT_MIN_MONTH) &&
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CheckField (pValue+6, 2, bDaySpecified, iDay, WBEMDT_MAX_DAY, WBEMDT_MIN_DAY) &&
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CheckField (pValue+8, 2, bHoursSpecified, iHours, WBEMDT_MAX_HOURS, WBEMDT_MIN_HOURS) &&
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CheckField (pValue+10, 2, bMinutesSpecified, iMinutes, WBEMDT_MAX_MINUTES, WBEMDT_MIN_MINUTES) &&
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CheckField (pValue+12, 2, bSecondsSpecified, iSeconds, WBEMDT_MAX_SECONDS, WBEMDT_MIN_SECONDS) &&
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(ISDOT(pValue [WBEMDT_DMTF_SPOS])) &&
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CheckField (pValue+15, 6, bMicrosecondsSpecified, iMicroseconds, WBEMDT_MAX_MICROSEC, WBEMDT_MIN_MICROSEC) &&
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CheckUTC (pValue+21, bUTCSpecified, iUTC));
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}
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if (!err)
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{
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m_iYear = iYear;
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m_iMonth = iMonth;
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m_iDay = iDay;
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m_iHours = iHours;
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m_iMinutes = iMinutes;
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m_iSeconds = iSeconds;
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m_iMicroseconds = iMicroseconds;
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m_iUTC = iUTC;
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m_bYearSpecified = bYearSpecified;
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m_bMonthSpecified = bMonthSpecified;
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m_bDaySpecified = bDaySpecified;
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m_bHoursSpecified = bHoursSpecified;
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m_bMinutesSpecified = bMinutesSpecified;
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m_bSecondsSpecified = bSecondsSpecified;
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m_bMicrosecondsSpecified = bMicrosecondsSpecified;
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m_bUTCSpecified = bUTCSpecified;
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m_bIsInterval = bIsInterval;
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m_dw100nsOverflow = 0;
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hr = S_OK;
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}
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemDateTime::CheckField
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//
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// DESCRIPTION:
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//
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// Check a string-based datetime field for correctness
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//
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// PARAMETERS:
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//
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// pValue pointer to the value to check
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// len number of characters in the value
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// bIsSpecified on return defines whether value is wildcard
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// iValue on return specifies integer value (if not wildcard)
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// maxValue maximum numeric value allowed for this field
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// minValue minimum numeric value allowed for this field
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//
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// RETURN VALUES:
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//
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// true if value parsed ok, false otherwise
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//
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//***************************************************************************
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bool CSWbemDateTime::CheckField (
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LPWSTR pValue,
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ULONG len,
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VARIANT_BOOL &bIsSpecified,
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long &iValue,
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long maxValue,
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long minValue
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)
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{
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bool status = true;
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bIsSpecified = VARIANT_FALSE;
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for (int i = 0; i < len; i++)
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{
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if (ISWILD(pValue [i]))
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{
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if (VARIANT_TRUE == bIsSpecified)
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{
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status = false;
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break;
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}
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}
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else if (!iswdigit (pValue [i]))
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{
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status = false;
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break;
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}
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else
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bIsSpecified = VARIANT_TRUE;
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}
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if (status)
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{
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if (VARIANT_TRUE == bIsSpecified)
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{
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wchar_t *dummy = NULL;
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wchar_t temp [9];
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wcsncpy (temp, pValue, len);
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temp [len] = NULL;
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iValue = wcstol (temp, &dummy, 10);
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}
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}
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return status;
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}
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//***************************************************************************
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//
|
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// SCODE CSWbemDateTime::CheckUTC
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//
|
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// DESCRIPTION:
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//
|
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// Check a string-based UTC field for correctness
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//
|
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// PARAMETERS:
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//
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// pValue pointer to the value to check
|
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// bIsSpecified on return defines whether value is wildcard
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// iValue on return specifies integer value (if not wildcard)
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// bParseSign whether first character should be a sign (+/-) or
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// a : (for intervals)
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//
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// RETURN VALUES:
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//
|
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// true if value parsed ok, false otherwise
|
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//
|
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//***************************************************************************
|
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bool CSWbemDateTime::CheckUTC (
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LPWSTR pValue,
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VARIANT_BOOL &bIsSpecified,
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long &iValue,
|
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bool bParseSign
|
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)
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|
{
|
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bool status = true;
|
|
bool lessThanZero = false;
|
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bIsSpecified = VARIANT_FALSE;
|
|
|
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// Check if we have a signed offset
|
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if (bParseSign)
|
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{
|
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if (ISMINUS(pValue [0]))
|
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lessThanZero = true;
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else if (!ISPLUS(pValue [0]))
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status = false;
|
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}
|
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else
|
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{
|
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if (!ISINTERVAL(pValue[0]))
|
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status = false;
|
|
}
|
|
|
|
if (status)
|
|
{
|
|
// Check remaining are digits or wildcars
|
|
for (int i = 1; i < 4; i++)
|
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{
|
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if (ISWILD(pValue [i]))
|
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{
|
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if (VARIANT_TRUE == bIsSpecified)
|
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{
|
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status = false;
|
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break;
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}
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}
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else if (!iswdigit (pValue [i]))
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{
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status = false;
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break;
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}
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else
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bIsSpecified = VARIANT_TRUE;
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}
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}
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|
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if (status)
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{
|
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if (VARIANT_TRUE == bIsSpecified)
|
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{
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wchar_t *dummy = NULL;
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wchar_t temp [4];
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|
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wcsncpy (temp, pValue+1, 3);
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temp [3] = NULL;
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iValue = wcstol (temp, &dummy, 10);
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|
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if (lessThanZero)
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iValue = -iValue;
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}
|
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}
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|
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return status;
|
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}
|
|
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CSWbemDateTime::GetVarDate
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Retrieve the value in Variant form
|
|
//
|
|
// PARAMETERS:
|
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//
|
|
// bIsLocal whether to return a local or UTC value
|
|
// pVarDate holds result on successful return
|
|
//
|
|
// RETURN VALUES:
|
|
//
|
|
// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_SYNTAX input value is bad
|
|
// WBEM_E_FAILED otherwise
|
|
//
|
|
//***************************************************************************
|
|
STDMETHODIMP CSWbemDateTime::GetVarDate(
|
|
IN VARIANT_BOOL bIsLocal,
|
|
OUT DATE *pVarDate)
|
|
{
|
|
HRESULT hr = wbemErrInvalidSyntax;
|
|
|
|
ResetLastErrors ();
|
|
|
|
if (NULL == pVarDate)
|
|
hr = wbemErrInvalidParameter;
|
|
else
|
|
{
|
|
// We cannot perform this operation for interval
|
|
// or wildcarded values
|
|
if ((VARIANT_TRUE == m_bIsInterval) ||
|
|
(VARIANT_FALSE == m_bYearSpecified) ||
|
|
(VARIANT_FALSE == m_bMonthSpecified) ||
|
|
(VARIANT_FALSE == m_bDaySpecified) ||
|
|
(VARIANT_FALSE == m_bHoursSpecified) ||
|
|
(VARIANT_FALSE == m_bMinutesSpecified) ||
|
|
(VARIANT_FALSE == m_bSecondsSpecified) ||
|
|
(VARIANT_FALSE == m_bMicrosecondsSpecified) ||
|
|
(VARIANT_FALSE == m_bUTCSpecified))
|
|
{
|
|
hr = wbemErrFailed;
|
|
}
|
|
else
|
|
{
|
|
SYSTEMTIME sysTime;
|
|
sysTime.wYear = m_iYear;
|
|
sysTime.wMonth = m_iMonth;
|
|
sysTime.wDay = m_iDay;
|
|
sysTime.wHour = m_iHours;
|
|
sysTime.wMinute = m_iMinutes;
|
|
sysTime.wSecond = m_iSeconds;
|
|
sysTime.wMilliseconds = m_iMicroseconds/1000;
|
|
|
|
if (VARIANT_TRUE == bIsLocal)
|
|
{
|
|
// Need to convert this to a local DATE value
|
|
// This requires that we switch the currently stored
|
|
// time to one for the appropriate timezone, lop off
|
|
// the UTC and set the rest in a variant.
|
|
|
|
// Coerce the time to GMT first
|
|
WBEMTime wbemTime (sysTime);
|
|
|
|
if (!wbemTime.GetDMTF (sysTime))
|
|
return wbemErrInvalidSyntax;
|
|
}
|
|
|
|
double dVarDate;
|
|
|
|
if (SystemTimeToVariantTime (&sysTime, &dVarDate))
|
|
{
|
|
*pVarDate = dVarDate;
|
|
hr = S_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
m_Dispatch.RaiseException (hr);
|
|
|
|
return hr;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CSWbemDateTime::GetFileTime
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Retrieve the value in FILETIME form
|
|
//
|
|
// PARAMETERS:
|
|
//
|
|
// bIsLocal whether to return a local or UTC value
|
|
// pbsFileTime holds result on successful return
|
|
//
|
|
// RETURN VALUES:
|
|
//
|
|
// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_SYNTAX input value is bad
|
|
// WBEM_E_FAILED otherwise
|
|
//
|
|
//***************************************************************************
|
|
STDMETHODIMP CSWbemDateTime::GetFileTime(
|
|
IN VARIANT_BOOL bIsLocal,
|
|
OUT BSTR *pbsFileTime)
|
|
{
|
|
HRESULT hr = wbemErrInvalidSyntax;
|
|
|
|
ResetLastErrors ();
|
|
|
|
if (NULL == pbsFileTime)
|
|
hr = wbemErrInvalidParameter;
|
|
else
|
|
{
|
|
// We cannot perform this operation for interval
|
|
// or wildcarded values
|
|
if ((VARIANT_TRUE == m_bIsInterval) ||
|
|
(VARIANT_FALSE == m_bYearSpecified) ||
|
|
(VARIANT_FALSE == m_bMonthSpecified) ||
|
|
(VARIANT_FALSE == m_bDaySpecified) ||
|
|
(VARIANT_FALSE == m_bHoursSpecified) ||
|
|
(VARIANT_FALSE == m_bMinutesSpecified) ||
|
|
(VARIANT_FALSE == m_bSecondsSpecified) ||
|
|
(VARIANT_FALSE == m_bMicrosecondsSpecified) ||
|
|
(VARIANT_FALSE == m_bUTCSpecified))
|
|
{
|
|
hr = wbemErrFailed;
|
|
}
|
|
else
|
|
{
|
|
SYSTEMTIME sysTime;
|
|
sysTime.wYear = m_iYear;
|
|
sysTime.wMonth = m_iMonth;
|
|
sysTime.wDay = m_iDay;
|
|
sysTime.wHour = m_iHours;
|
|
sysTime.wMinute = m_iMinutes;
|
|
sysTime.wSecond = m_iSeconds;
|
|
sysTime.wMilliseconds = m_iMicroseconds/1000;
|
|
|
|
if (VARIANT_TRUE == bIsLocal)
|
|
{
|
|
// Need to convert this to a local DATE value
|
|
// This requires that we switch the currently stored
|
|
// time to one for the appropriate timezone, lop off
|
|
// the UTC and set the rest in a variant.
|
|
|
|
// Coerce the time to GMT first
|
|
WBEMTime wbemTime (sysTime);
|
|
|
|
if (!wbemTime.GetDMTF (sysTime))
|
|
return wbemErrInvalidSyntax;
|
|
}
|
|
|
|
FILETIME fileTime;
|
|
|
|
if (SystemTimeToFileTime (&sysTime, &fileTime))
|
|
{
|
|
wchar_t wcBuf [30];
|
|
unsigned __int64 ui64 = fileTime.dwHighDateTime;
|
|
ui64 = ui64 << 32;
|
|
ui64 += fileTime.dwLowDateTime;
|
|
|
|
/*
|
|
* In converting to SYSTEMTIME we lost sub-millisecond
|
|
* precision from our DMTF value, so let's add it back,
|
|
* remembering that FILETIME is in 10ns units.
|
|
*/
|
|
ui64 += ((m_iMicroseconds % 1000) * 10);
|
|
|
|
// Finally add the LSB
|
|
ui64 += m_dw100nsOverflow;
|
|
|
|
_ui64tow (ui64, wcBuf, 10);
|
|
|
|
*pbsFileTime = SysAllocString (wcBuf);
|
|
hr = S_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
m_Dispatch.RaiseException (hr);
|
|
|
|
return hr;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CSWbemDateTime::SetVarDate
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Set the value in Variant form
|
|
//
|
|
// PARAMETERS:
|
|
//
|
|
// dVarDate the new value
|
|
// bIsLocal whether to treat as local or UTC value
|
|
//
|
|
// RETURN VALUES:
|
|
//
|
|
// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_SYNTAX input value is bad
|
|
//
|
|
//***************************************************************************
|
|
STDMETHODIMP CSWbemDateTime::SetVarDate(
|
|
/*[in]*/ DATE dVarDate,
|
|
/*[in, optional]*/ VARIANT_BOOL bIsLocal)
|
|
{
|
|
HRESULT hr = wbemErrInvalidSyntax;
|
|
|
|
ResetLastErrors ();
|
|
|
|
SYSTEMTIME sysTime;
|
|
|
|
if (TRUE == VariantTimeToSystemTime (dVarDate, &sysTime))
|
|
{
|
|
long offset = 0;
|
|
|
|
if (VARIANT_TRUE == bIsLocal)
|
|
{
|
|
WBEMTime wbemTime (sysTime);
|
|
if (!wbemTime.GetDMTF (sysTime, offset))
|
|
return wbemErrInvalidSyntax;
|
|
}
|
|
|
|
m_iYear = sysTime.wYear;
|
|
m_iMonth = sysTime.wMonth;
|
|
m_iDay = sysTime.wDay;
|
|
m_iHours = sysTime.wHour;
|
|
m_iMinutes = sysTime.wMinute;
|
|
m_iSeconds = sysTime.wSecond;
|
|
m_iMicroseconds = sysTime.wMilliseconds * 1000;
|
|
m_iUTC = offset;
|
|
m_dw100nsOverflow = 0;
|
|
|
|
m_bYearSpecified = VARIANT_TRUE,
|
|
m_bMonthSpecified = VARIANT_TRUE,
|
|
m_bDaySpecified = VARIANT_TRUE,
|
|
m_bHoursSpecified = VARIANT_TRUE,
|
|
m_bMinutesSpecified = VARIANT_TRUE,
|
|
m_bSecondsSpecified = VARIANT_TRUE,
|
|
m_bMicrosecondsSpecified = VARIANT_TRUE,
|
|
m_bUTCSpecified = VARIANT_TRUE,
|
|
m_bIsInterval = VARIANT_FALSE;
|
|
|
|
hr = S_OK;
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
m_Dispatch.RaiseException (hr);
|
|
|
|
return hr;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CSWbemDateTime::SetFileTime
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Set the value from a string representation of a FILETIME
|
|
//
|
|
// PARAMETERS:
|
|
//
|
|
// bsFileTime the new value
|
|
// bIsLocal whether to treat as local or UTC value
|
|
//
|
|
// RETURN VALUES:
|
|
//
|
|
// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_SYNTAX input value is bad
|
|
//
|
|
//***************************************************************************
|
|
STDMETHODIMP CSWbemDateTime::SetFileTime(
|
|
/*[in]*/ BSTR bsFileTime,
|
|
/*[in, optional]*/ VARIANT_BOOL bIsLocal)
|
|
{
|
|
HRESULT hr = wbemErrInvalidSyntax;
|
|
|
|
ResetLastErrors ();
|
|
|
|
// Convert string to 64-bit
|
|
unsigned __int64 ri64;
|
|
|
|
if (ReadUI64(bsFileTime, ri64))
|
|
{
|
|
// Now convert 64-bit to FILETIME
|
|
FILETIME fileTime;
|
|
fileTime.dwHighDateTime = (DWORD)(ri64 >> 32);
|
|
fileTime.dwLowDateTime = (DWORD)(ri64 & 0xFFFFFFFF);
|
|
|
|
// Now turn it into a SYSTEMTIME
|
|
SYSTEMTIME sysTime;
|
|
|
|
if (TRUE == FileTimeToSystemTime (&fileTime, &sysTime))
|
|
{
|
|
long offset = 0;
|
|
|
|
if (VARIANT_TRUE == bIsLocal)
|
|
{
|
|
WBEMTime wbemTime (sysTime);
|
|
if (!wbemTime.GetDMTF (sysTime, offset))
|
|
return wbemErrInvalidSyntax;
|
|
}
|
|
|
|
m_iYear = sysTime.wYear;
|
|
m_iMonth = sysTime.wMonth;
|
|
m_iDay = sysTime.wDay;
|
|
m_iHours = sysTime.wHour;
|
|
m_iMinutes = sysTime.wMinute;
|
|
m_iSeconds = sysTime.wSecond;
|
|
|
|
/*
|
|
* SYSTEMTIME has only 1 millisecond precision. Since
|
|
* a FILETIME has 100 nanosecond precision and a DMTF
|
|
* datetime has 1 microsecond, you can see the point
|
|
* of the following.
|
|
*/
|
|
m_iMicroseconds = sysTime.wMilliseconds * 1000 +
|
|
((ri64 % (10000)) / 10);
|
|
|
|
// Record our LSB in case we need it later
|
|
m_dw100nsOverflow = ri64 % 10;
|
|
|
|
// The FILETIME hs 1ns precision
|
|
m_iUTC = offset;
|
|
|
|
m_bYearSpecified = VARIANT_TRUE,
|
|
m_bMonthSpecified = VARIANT_TRUE,
|
|
m_bDaySpecified = VARIANT_TRUE,
|
|
m_bHoursSpecified = VARIANT_TRUE,
|
|
m_bMinutesSpecified = VARIANT_TRUE,
|
|
m_bSecondsSpecified = VARIANT_TRUE,
|
|
m_bMicrosecondsSpecified = VARIANT_TRUE,
|
|
m_bUTCSpecified = VARIANT_TRUE,
|
|
m_bIsInterval = VARIANT_FALSE;
|
|
|
|
hr = S_OK;
|
|
}
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
m_Dispatch.RaiseException (hr);
|
|
|
|
return hr;
|
|
}
|
|
|
|
// These are here rather than wbemtime.h so we don't have to doc/support
|
|
#define INVALID_TIME_FORMAT 0
|
|
#define INVALID_TIME_ARITHMETIC 0
|
|
#define BAD_TIMEZONE 0
|
|
|
|
//***************************************************************************
|
|
//
|
|
// FileTimeToui64
|
|
// ui64ToFileTime
|
|
//
|
|
// Description: Conversion routines for going between FILETIME structures
|
|
// and __int64.
|
|
//
|
|
//***************************************************************************
|
|
|
|
static void FileTimeToui64(const FILETIME *pft, ULONGLONG *p64)
|
|
{
|
|
*p64 = pft->dwHighDateTime;
|
|
*p64 = *p64 << 32;
|
|
*p64 |= pft->dwLowDateTime;
|
|
}
|
|
|
|
static void ui64ToFileTime(const ULONGLONG *p64,FILETIME *pft)
|
|
{
|
|
unsigned __int64 uTemp = *p64;
|
|
pft->dwLowDateTime = (DWORD)uTemp;
|
|
uTemp = uTemp >> 32;
|
|
pft->dwHighDateTime = (DWORD)uTemp;
|
|
}
|
|
|
|
static int CompareSYSTEMTIME(const SYSTEMTIME *pst1, const SYSTEMTIME *pst2)
|
|
{
|
|
FILETIME ft1, ft2;
|
|
|
|
SystemTimeToFileTime(pst1, &ft1);
|
|
SystemTimeToFileTime(pst2, &ft2);
|
|
|
|
return CompareFileTime(&ft1, &ft2);
|
|
}
|
|
|
|
// This function is used to convert the relative values that come
|
|
// back from GetTimeZoneInformation into an actual date for the year
|
|
// in question. The system time structure that is passed in is updated
|
|
// to contain the absolute values.
|
|
static void DayInMonthToAbsolute(SYSTEMTIME *pst, const WORD wYear)
|
|
{
|
|
const static int _lpdays[] = {
|
|
-1, 30, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365
|
|
};
|
|
|
|
const static int _days[] = {
|
|
-1, 30, 58, 89, 119, 150, 180, 211, 242, 272, 303, 333, 364
|
|
};
|
|
|
|
SHORT shYearDay;
|
|
|
|
// If this is not 0, this is not a relative date
|
|
if (pst->wYear == 0)
|
|
{
|
|
// Was that year a leap year?
|
|
BOOL bLeap = ( (( wYear % 400) == 0) || ((( wYear % 4) == 0) && (( wYear % 100) != 0)));
|
|
|
|
// Figure out the day of the year for the first day of the month in question
|
|
if (bLeap)
|
|
shYearDay = 1 + _lpdays[pst->wMonth - 1];
|
|
else
|
|
shYearDay = 1 + _days[pst->wMonth - 1];
|
|
|
|
// Now, figure out how many leap days there have been since 1/1/1601
|
|
WORD yc = wYear - 1601;
|
|
WORD y4 = (yc) / 4;
|
|
WORD y100 = (yc) / 100;
|
|
WORD y400 = (yc) / 400;
|
|
|
|
// This will tell us the day of the week for the first day of the month in question.
|
|
// The '1 +' reflects the fact that 1/1/1601 was a monday (figures). You might ask,
|
|
// 'why do we care what day of the week this is?' Well, I'll tell you. The way
|
|
// daylight savings time is defined is with things like 'the last sunday of the month
|
|
// of october.' Kinda helps to know what day that is.
|
|
SHORT monthdow = (1 + (yc * 365 + y4 + y400 - y100) + shYearDay) % 7;
|
|
|
|
if ( monthdow < pst->wDayOfWeek )
|
|
shYearDay += (pst->wDayOfWeek - monthdow) + (pst->wDay - 1) * 7;
|
|
else
|
|
shYearDay += (pst->wDayOfWeek - monthdow) + pst->wDay * 7;
|
|
|
|
/*
|
|
* May have to adjust the calculation above if week == 5 (meaning
|
|
* the last instance of the day in the month). Check if yearday falls
|
|
* beyond month and adjust accordingly.
|
|
*/
|
|
if ( (pst->wDay == 5) &&
|
|
(shYearDay > (bLeap ? _lpdays[pst->wMonth] :
|
|
_days[pst->wMonth])) )
|
|
{
|
|
shYearDay -= 7;
|
|
}
|
|
|
|
// Now update the structure.
|
|
pst->wYear = wYear;
|
|
pst->wDay = shYearDay - (bLeap ? _lpdays[pst->wMonth - 1] :
|
|
_days[pst->wMonth - 1]);
|
|
}
|
|
|
|
}
|
|
|
|
// **************************************************************************
|
|
// These are static to WBEMTIME, which means they CAN be called from outside
|
|
// wbemtime
|
|
|
|
LONG CSWbemDateTime::WBEMTime::GetLocalOffsetForDate(const SYSTEMTIME *pst)
|
|
{
|
|
TIME_ZONE_INFORMATION tzTime;
|
|
DWORD dwRes = GetTimeZoneInformation(&tzTime);
|
|
LONG lRes = 0xffffffff;
|
|
|
|
switch (dwRes)
|
|
{
|
|
case TIME_ZONE_ID_UNKNOWN:
|
|
{
|
|
// Read tz, but no dst defined in this zone
|
|
lRes = tzTime.Bias * -1;
|
|
break;
|
|
}
|
|
case TIME_ZONE_ID_STANDARD:
|
|
case TIME_ZONE_ID_DAYLIGHT:
|
|
{
|
|
|
|
// Convert the relative dates to absolute dates
|
|
DayInMonthToAbsolute(&tzTime.DaylightDate, pst->wYear);
|
|
DayInMonthToAbsolute(&tzTime.StandardDate, pst->wYear);
|
|
|
|
if ( CompareSYSTEMTIME(&tzTime.DaylightDate, &tzTime.StandardDate) < 0 )
|
|
{
|
|
/*
|
|
* Northern hemisphere ordering
|
|
*/
|
|
if ( CompareSYSTEMTIME(pst, &tzTime.DaylightDate) < 0 || CompareSYSTEMTIME(pst, &tzTime.StandardDate) > 0)
|
|
{
|
|
lRes = tzTime.Bias * -1;
|
|
}
|
|
else
|
|
{
|
|
lRes = (tzTime.Bias + tzTime.DaylightBias) * -1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Southern hemisphere ordering
|
|
*/
|
|
if ( CompareSYSTEMTIME(pst, &tzTime.StandardDate) < 0 || CompareSYSTEMTIME(pst, &tzTime.DaylightDate) > 0)
|
|
{
|
|
lRes = (tzTime.Bias + tzTime.DaylightBias) * -1;
|
|
}
|
|
else
|
|
{
|
|
lRes = tzTime.Bias * -1;
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
case TIME_ZONE_ID_INVALID:
|
|
default:
|
|
{
|
|
// Can't read the timezone info
|
|
ASSERT_BREAK(BAD_TIMEZONE);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return lRes;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// WBEMTime - This class holds time values.
|
|
|
|
//***************************************************************************
|
|
//
|
|
// WBEMTime::operator+(const WBEMTimeSpan &uAdd)
|
|
//
|
|
// Description: dummy function for adding two WBEMTime. It doesnt really
|
|
// make sense to add two date, but this is here for Tomas's template.
|
|
//
|
|
// Return: WBEMTime object.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CSWbemDateTime::WBEMTime CSWbemDateTime::WBEMTime::operator+(const WBEMTimeSpan &uAdd) const
|
|
{
|
|
WBEMTime ret;
|
|
|
|
if (IsOk())
|
|
{
|
|
ret.m_uTime = m_uTime + uAdd.m_Time;
|
|
}
|
|
else
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// WBEMTime::operator=(const SYSTEMTIME)
|
|
//
|
|
// Description: Assignment operator which is also used by the constructor.
|
|
// This takes a standard WIN32 SYSTEMTIME stucture.
|
|
//
|
|
// Return: WBEMTime object.
|
|
//
|
|
//***************************************************************************
|
|
|
|
const CSWbemDateTime::WBEMTime & CSWbemDateTime::WBEMTime::operator=(const SYSTEMTIME & st)
|
|
{
|
|
Clear(); // set when properly assigned
|
|
FILETIME t_ft;
|
|
|
|
if ( SystemTimeToFileTime(&st, &t_ft) )
|
|
{
|
|
// now assign using a FILETIME.
|
|
*this = t_ft;
|
|
}
|
|
else
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_FORMAT);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// WBEMTime::operator=(const FILETIME)
|
|
//
|
|
// Description: Assignment operator which is also used by the constructor.
|
|
// This takes a standard WIN32 FILETIME stucture.
|
|
//
|
|
// Return: WBEMTime object.
|
|
//
|
|
//***************************************************************************
|
|
|
|
const CSWbemDateTime::WBEMTime & CSWbemDateTime::WBEMTime::operator=(const FILETIME & ft)
|
|
{
|
|
FileTimeToui64(&ft, &m_uTime);
|
|
return *this;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// WBEMTime::operator-(const WBEMTime & sub)
|
|
//
|
|
// Description: returns a WBEMTimeSpan object as the difference between
|
|
// two WBEMTime objects.
|
|
//
|
|
// Return: WBEMTimeSpan object.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CSWbemDateTime::WBEMTime CSWbemDateTime::WBEMTime::operator-(const WBEMTimeSpan & sub) const
|
|
{
|
|
WBEMTime ret;
|
|
|
|
if (IsOk() && (m_uTime >= sub.m_Time))
|
|
{
|
|
ret.m_uTime = m_uTime - sub.m_Time;
|
|
}
|
|
else
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// WBEMTime::GetSYSTEMTIME(SYSTEMTIME * pst)
|
|
//
|
|
// Return: TRUE if OK.
|
|
//
|
|
//***************************************************************************
|
|
|
|
BOOL CSWbemDateTime::WBEMTime::GetSYSTEMTIME(SYSTEMTIME * pst) const
|
|
{
|
|
if ((pst == NULL) || (!IsOk()))
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
return FALSE;
|
|
}
|
|
|
|
FILETIME t_ft;
|
|
|
|
if (GetFILETIME(&t_ft))
|
|
{
|
|
if (!FileTimeToSystemTime(&t_ft, pst))
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// WBEMTime::GetFILETIME(FILETIME * pst)
|
|
//
|
|
// Return: TRUE if OK.
|
|
//
|
|
//***************************************************************************
|
|
|
|
BOOL CSWbemDateTime::WBEMTime::GetFILETIME(FILETIME * pft) const
|
|
{
|
|
if ((pft == NULL) || (!IsOk()))
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
return FALSE;
|
|
}
|
|
|
|
ui64ToFileTime(&m_uTime, pft);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// BSTR WBEMTime::GetDMTF(SYSTEMTIME &st, long &offset)
|
|
//
|
|
// Description: Gets the time in DMTF string local datetime format as a
|
|
// SYSTEMTIME.
|
|
//
|
|
// Return: NULL if not OK.
|
|
//
|
|
//***************************************************************************
|
|
|
|
|
|
BOOL CSWbemDateTime::WBEMTime::GetDMTF(SYSTEMTIME &st, long &offset) const
|
|
{
|
|
if (!IsOk())
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
return FALSE;
|
|
}
|
|
|
|
// If the date to be converted is within 12 hours of
|
|
// 1/1/1601, return the greenwich time
|
|
ULONGLONG t_ConversionZone = 12L * 60L * 60L ;
|
|
t_ConversionZone = t_ConversionZone * 10000000L ;
|
|
|
|
if ( m_uTime < t_ConversionZone )
|
|
{
|
|
if(!GetSYSTEMTIME(&st))
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (GetSYSTEMTIME(&st))
|
|
{
|
|
offset = GetLocalOffsetForDate(&st);
|
|
|
|
WBEMTime wt;
|
|
if (offset >= 0)
|
|
wt = *this - WBEMTimeSpan(offset);
|
|
else
|
|
wt = *this + WBEMTimeSpan(-offset);
|
|
wt.GetSYSTEMTIME(&st);
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE ;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// BSTR WBEMTime::GetDMTF(SYSTEMTIME &st)
|
|
//
|
|
// Description: Gets the time in as local SYSTEMTIME.
|
|
//
|
|
// Return: NULL if not OK.
|
|
//
|
|
//***************************************************************************
|
|
|
|
|
|
BOOL CSWbemDateTime::WBEMTime::GetDMTF(SYSTEMTIME &st) const
|
|
{
|
|
if (!IsOk())
|
|
{
|
|
ASSERT_BREAK(INVALID_TIME_ARITHMETIC);
|
|
return FALSE;
|
|
}
|
|
|
|
// If the date to be converted is within 12 hours of
|
|
// 1/1/1601, return the greenwich time
|
|
ULONGLONG t_ConversionZone = 12L * 60L * 60L ;
|
|
t_ConversionZone = t_ConversionZone * 10000000L ;
|
|
|
|
if ( m_uTime < t_ConversionZone )
|
|
{
|
|
if(!GetSYSTEMTIME(&st))
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (GetSYSTEMTIME(&st))
|
|
{
|
|
long offset = GetLocalOffsetForDate(&st);
|
|
|
|
WBEMTime wt;
|
|
if (offset >= 0)
|
|
wt = *this + WBEMTimeSpan(offset);
|
|
else
|
|
wt = *this - WBEMTimeSpan(-offset);
|
|
wt.GetSYSTEMTIME(&st);
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE ;
|
|
}
|
|
|
|
|