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2989 lines
70 KiB
2989 lines
70 KiB
/*++
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Copyright (C) 1996-2001 Microsoft Corporation
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Module Name:
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VAR.H
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Abstract:
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CVar & CVarVector implemntation
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History:
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16-Apr-96 a-raymcc Created.
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12//17/98 sanjes - Partially Reviewed for Out of Memory.
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18-Mar-99 a-dcrews Added out-of-memory exception handling
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--*/
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#include "precomp.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <var.h>
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#include <wbemutil.h>
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#include <genutils.h>
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#include <wbemidl.h>
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#include <corex.h>
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#include <arrtempl.h>
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#include <olewrap.h>
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static wchar_t g_szNullVarString[1] = {0};
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static wchar_t* g_pszNullVarString = &g_szNullVarString[0];
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//***************************************************************************
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//
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// CVar::Empty
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//
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// Constructor helper.
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//
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// This merely clears everything. VT_EMPTY is the default.
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//
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//***************************************************************************
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void CVar::Init()
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{
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m_nStatus = no_error;
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m_vt = VT_EMPTY;
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m_bCanDelete = TRUE;
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memset(&m_value, 0, sizeof(METAVALUE));
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}
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//***************************************************************************
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//
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// CVar::~CVar
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//
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// Destructor.
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//
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//***************************************************************************
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CVar::~CVar()
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{
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Empty();
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}
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//***************************************************************************
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//
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// CVar::CVar
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//
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// Copy constructor. This is implemented via the assignment operator.
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//
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//***************************************************************************
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CVar::CVar(const CVar &Src)
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{
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m_vt = VT_EMPTY;
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m_nStatus = no_error;
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memset(&m_value, 0, sizeof(METAVALUE));
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*this = Src;
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}
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//***************************************************************************
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//
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// CVar::operator =
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//
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// NOTES:
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// Observe that VT_EX_CVARVECTOR is dedicated to embedded CVarVector objects.
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// Also, only pointer types require a new allocation + copy, whereas
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// most of the simple types are directly assignable, in the <default>
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// label of the switch statement.
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//
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//***************************************************************************
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CVar& CVar::operator =(const CVar &Src)
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{
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Empty();
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m_vt = Src.m_vt;
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m_nStatus = m_nStatus;
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m_bCanDelete = TRUE;
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switch (m_vt) {
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case VT_LPSTR:
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// Check for an allocation failure
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if ( NULL != Src.m_value.pStr )
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{
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size_t stringLength = strlen(Src.m_value.pStr) + 1;
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m_value.pStr = new char[stringLength];
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if ( NULL == m_value.pStr )
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{
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throw CX_MemoryException();
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}
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StringCchCopyA( m_value.pStr, stringLength, Src.m_value.pStr );
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}
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else
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{
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m_value.pStr = NULL;
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}
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break;
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case VT_LPWSTR:
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// Check for an allocation failure
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if ( NULL != Src.m_value.pWStr )
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{
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size_t stringLength = wcslen(Src.m_value.pWStr) + 1;
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m_value.pWStr = new wchar_t[stringLength];
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if ( NULL == m_value.pWStr )
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{
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throw CX_MemoryException();
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}
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StringCchCopyW( m_value.pWStr, stringLength, Src.m_value.pWStr );
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}
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else
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{
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m_value.pWStr = NULL;
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}
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break;
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case VT_BSTR:
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// Check for an allocation failure
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if ( NULL != Src.m_value.Str )
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{
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m_value.Str = SysAllocString(Src.m_value.Str);
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if ( NULL == m_value.Str )
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{
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throw CX_MemoryException();
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}
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}
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else
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{
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m_value.Str = NULL;
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}
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break;
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case VT_BLOB:
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// This will natively throw an exception, but make sure the
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// original value is cleared in case an exception is thrown
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// so we don't AV destructing this object
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ZeroMemory( &m_value.Blob, sizeof( m_value.Blob ) );
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m_value.Blob = BlobCopy(&Src.m_value.Blob);
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break;
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case VT_CLSID:
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m_value.pClsId = new CLSID(*Src.m_value.pClsId);
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// Check for a failed allocation
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if ( NULL == m_value.pClsId )
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{
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throw CX_MemoryException();
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}
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break;
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case VT_DISPATCH:
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m_value.pDisp = Src.m_value.pDisp;
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if(m_value.pDisp) m_value.pDisp->AddRef();
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break;
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case VT_UNKNOWN:
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m_value.pUnk = Src.m_value.pUnk;
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if(m_value.pUnk) m_value.pUnk->AddRef();
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break;
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// CVarVector
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// ==========
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case VT_EX_CVARVECTOR:
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m_value.pVarVector = new CVarVector(*Src.m_value.pVarVector);
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// Check for a failed allocation
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if ( NULL == m_value.pVarVector )
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{
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throw CX_MemoryException();
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}
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break;
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// All remaining simple types.
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// ===========================
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default:
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m_value = Src.m_value;
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}
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return *this;
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}
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//***************************************************************************
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//
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// CVar::operator ==
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//
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// Equality test operator.
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//
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//***************************************************************************
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int CVar::operator ==(CVar &Src)
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{
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return CompareTo(Src, TRUE);
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}
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BOOL CVar::CompareTo(CVar& Src, BOOL bIgnoreCase)
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{
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// If types are not the same, forget the test.
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// ===========================================
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if (m_vt != Src.m_vt)
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return 0;
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// If here, the types are the same, so test
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// the fields.
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// ========================================
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switch (m_vt) {
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case VT_LPSTR:
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if(bIgnoreCase)
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{
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if (wbem_stricmp(m_value.pStr, Src.m_value.pStr) == 0)
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return 1;
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}
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else
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{
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if (strcmp(m_value.pStr, Src.m_value.pStr) == 0)
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return 1;
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}
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break;
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case VT_LPWSTR:
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case VT_BSTR:
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if(bIgnoreCase)
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{
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if (wbem_wcsicmp(m_value.pWStr, Src.m_value.pWStr) == 0)
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return 1;
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}
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else
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{
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if (wcscmp( m_value.pWStr, Src.m_value.pWStr) == 0)
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return 1;
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}
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break;
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case VT_BLOB:
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if (BlobLength(&m_value.Blob) != BlobLength(&Src.m_value.Blob))
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return 0;
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if (memcmp(BlobDataPtr(&m_value.Blob), BlobDataPtr(&Src.m_value.Blob),
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BlobLength(&m_value.Blob)) == 0)
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return 1;
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break;
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case VT_CLSID:
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if (memcmp(m_value.pClsId, Src.m_value.pClsId, sizeof(CLSID)) == 0)
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return 1;
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break;
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// CVarVector
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// ==========
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case VT_EX_CVARVECTOR:
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if (m_value.pVarVector == Src.m_value.pVarVector)
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return 1;
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if (m_value.pVarVector == 0 || Src.m_value.pVarVector == 0)
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return 0;
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return *m_value.pVarVector == *Src.m_value.pVarVector;
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// All remaining simple types.
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// ===========================
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case VT_I1:
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return m_value.cVal == Src.m_value.cVal;
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case VT_UI1:
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return m_value.bVal == Src.m_value.bVal;
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case VT_I2:
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return m_value.iVal == Src.m_value.iVal;
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case VT_UI2:
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return m_value.wVal == Src.m_value.wVal;
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case VT_I4:
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return m_value.lVal == Src.m_value.lVal;
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case VT_UI4:
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return m_value.dwVal == Src.m_value.dwVal;
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case VT_BOOL:
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return m_value.boolVal == Src.m_value.boolVal;
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case VT_R8:
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return m_value.dblVal == Src.m_value.dblVal;
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case VT_R4:
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return m_value.fltVal == Src.m_value.fltVal;
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case VT_DISPATCH:
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// Note: no proper comparison of embedded objects.
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return m_value.pDisp == Src.m_value.pDisp;
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case VT_UNKNOWN:
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// Note: no proper comparison of embedded objects.
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return m_value.pUnk == Src.m_value.pUnk;
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case VT_FILETIME:
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if (memcmp(&m_value.Time, &Src.m_value.Time, sizeof(FILETIME)) == 0)
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return 1;
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case VT_NULL:
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return 1;
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}
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return 0;
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}
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//***************************************************************************
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//
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// CVar::Empty
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//
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// Clears the CVar to 'empty', deallocates any objects based on pointers,
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// unless bCanDelete is set to FALSE, indicating that the stored pointer
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// is owned by somebody else.
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//
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//***************************************************************************
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void CVar::Empty()
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{
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if(m_bCanDelete)
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{
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// Only pointer types require a deallocation phase.
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// =================================================
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switch (m_vt) {
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case VT_LPSTR: delete m_value.pStr; break;
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case VT_LPWSTR: delete m_value.pWStr; break;
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case VT_BSTR: SysFreeString(m_value.Str); break;
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case VT_BLOB: BlobClear(&m_value.Blob); break;
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case VT_CLSID: delete m_value.pClsId; break;
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case VT_EX_CVARVECTOR: delete m_value.pVarVector; break;
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case VT_DISPATCH: if(m_value.pDisp) m_value.pDisp->Release(); break;
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case VT_UNKNOWN: if(m_value.pUnk) m_value.pUnk->Release(); break;
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}
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}
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memset(&m_value, 0, sizeof(METAVALUE));
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m_vt = VT_EMPTY;
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m_nStatus = no_error;
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m_bCanDelete = TRUE;
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}
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//***************************************************************************
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//
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// CVar::IsDataNull
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//
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// Determines if this CVar contains a NULL pointer.
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//
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//***************************************************************************
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BOOL CVar::IsDataNull()
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{
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if(m_vt == VT_LPWSTR && m_value.pWStr == NULL)
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return TRUE;
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if(m_vt == VT_LPSTR && m_value.pStr == NULL)
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return TRUE;
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if(m_vt == VT_BSTR && m_value.Str == NULL)
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return TRUE;
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if(m_vt == VT_DISPATCH && m_value.pDisp == NULL)
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return TRUE;
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if(m_vt == VT_UNKNOWN && m_value.pUnk == NULL)
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return TRUE;
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return FALSE;
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}
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//***************************************************************************
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//
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// CVar::SetRaw
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//
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// Creates a CVar from raw data. Sets the type and copies the right
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// number of bytes from the source to METAVALUE.
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//
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//***************************************************************************
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void CVar::SetRaw(int vt, void* pvData, int nDataLen)
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{
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m_vt = vt;
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memcpy(&m_value, pvData, nDataLen);
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m_nStatus = no_error;
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m_bCanDelete = TRUE;
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}
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//***************************************************************************
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//
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// CVar::SetSafeArray
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//
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// PARAMETERS:
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// nType
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// This is the VT_ type indicator of the SAFEARRAY.
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// pArray
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// This is the pointer to the SAFEARRAY which will be used as
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// a source. The SAFEARRAY is not acquired; it is copied.
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//
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//***************************************************************************
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void CVar::SetSafeArray(int nType, SAFEARRAY *pArray)
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{
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CVarVector *pVec = NULL;
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m_nStatus = no_error;
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try
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{
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pVec = new CVarVector(nType, pArray);
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// Check for a failed allocation
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if ( NULL == pVec )
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{
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throw CX_MemoryException();
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}
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SetVarVector(pVec, TRUE);
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}
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catch (CX_MemoryException)
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{
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// SetVarVector can throw an exception
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// m_value aquires the pVec pointer, so auto delete will not work
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if (NULL != pVec)
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{
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delete pVec;
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pVec = NULL;
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}
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throw;
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}
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}
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//***************************************************************************
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//
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// CVar::GetNewSafeArray
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//
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// RETURN VALUE:
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// A pointer to newly allocated SAFEARRAY which must be released by
|
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// SafeArrayDestroy.
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//
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//***************************************************************************
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SAFEARRAY *CVar::GetNewSafeArray()
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{
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CVarVector *p = (CVarVector *) GetVarVector();
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return p->GetNewSafeArray();
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}
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//***************************************************************************
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//
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// CVar::SetValue
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//
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// Sets the value based on an incoming VARIANT. A VARIANT containing
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// a SAFEARRAY is supported as long as it is not an array of VARIANTs.
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// Some of the other VARIANT types, such as IUnknown, Currency, etc.,
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// are not supported. The complete list is:
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// VT_UI1, VT_I2, VT_I4, VT_BSTR, VT_BOOL
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// VT_R4, VT_R8, or SAFEARRAY of any of these.
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//
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// PARAMETERS:
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// pSrc
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// A pointer to the source VARIANT. This is treated as read-only.
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//
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// RETURN VALUES:
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// no_error
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// Returned on succcess.
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// unsupported
|
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// Returned if the VARIANT contains unsupported types.
|
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//
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//***************************************************************************
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int CVar::SetVariant(VARIANT *pSrc, BOOL fOptimize /*=FALSE*/)
|
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{
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if(pSrc == NULL)
|
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{
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SetAsNull();
|
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return no_error;
|
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}
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|
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// If a SAFEARRAY, check it.
|
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// =========================
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|
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if (pSrc->vt & VT_ARRAY)
|
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{
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CVarVector *pVec = NULL;
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|
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try
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{
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int nType = pSrc->vt & 0xFF; // Find the type of the array
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|
|
// BEGIN MODIFIED by a-levn
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|
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// First, check if the incoming SAFEARRAY is NULL
|
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// ==============================================
|
|
|
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SAFEARRAY *pSafeArr;
|
|
/*
|
|
if(pSrc->parray == NULL)
|
|
{
|
|
pSafeArr = NULL;
|
|
}
|
|
else
|
|
{
|
|
// Make a copy of the SAFEARRAY using CSafeArray which will NOT
|
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// autodestruct
|
|
// ============================================================
|
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|
|
CSafeArray array(pSrc->parray, nType, CSafeArray::no_delete, 0);
|
|
pSafeArr = array.GetArray();
|
|
}
|
|
|
|
*/
|
|
pSafeArr = pSrc->parray;
|
|
|
|
pVec = new CVarVector( nType, pSafeArr, fOptimize );
|
|
|
|
// Check for an allocation failure.
|
|
if ( NULL == pVec )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
// END MODIFIED
|
|
|
|
if (pVec->Status() != no_error)
|
|
{
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|
|
// If here, the SAFEARRAY was not compatible.
|
|
// ==========================================
|
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|
|
delete pVec;
|
|
pVec = NULL;
|
|
m_nStatus = unsupported;
|
|
m_vt = VT_EMPTY;
|
|
return unsupported;
|
|
}
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|
|
SetVarVector(pVec, TRUE);
|
|
return no_error;
|
|
}
|
|
catch(CX_MemoryException)
|
|
{
|
|
// new and SetVarVector can throw exceptions
|
|
// m_value aquires the pVec pointer, so an auto delete will not work
|
|
|
|
if (NULL != pVec)
|
|
{
|
|
delete pVec;
|
|
pVec = NULL;
|
|
}
|
|
|
|
throw;
|
|
}
|
|
}
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|
|
// Simple copies.
|
|
// ==============
|
|
|
|
switch (pSrc->vt) {
|
|
case VT_NULL:
|
|
SetAsNull();
|
|
return no_error;
|
|
|
|
case VT_UI1:
|
|
SetByte(pSrc->bVal);
|
|
return no_error;
|
|
|
|
case VT_I2:
|
|
SetShort(pSrc->iVal);
|
|
return no_error;
|
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|
|
case VT_I4:
|
|
SetLong(pSrc->lVal);
|
|
return no_error;
|
|
|
|
case VT_R4:
|
|
SetFloat(pSrc->fltVal);
|
|
return no_error;
|
|
|
|
case VT_R8:
|
|
SetDouble(pSrc->dblVal);
|
|
return no_error;
|
|
|
|
case VT_BSTR:
|
|
SetBSTR(pSrc->bstrVal);
|
|
return no_error;
|
|
|
|
case VT_BOOL:
|
|
SetBool(pSrc->boolVal);
|
|
return no_error;
|
|
|
|
case VT_DISPATCH:
|
|
SetDispatch(V_DISPATCH(pSrc));
|
|
return no_error;
|
|
|
|
case VT_UNKNOWN:
|
|
SetUnknown(V_UNKNOWN(pSrc));
|
|
return no_error;
|
|
}
|
|
|
|
m_nStatus = unsupported;
|
|
return unsupported;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::GetNewVariant
|
|
//
|
|
// RETURN VALUE:
|
|
// A pointer to a new VARIANT which contains the value of object.
|
|
// If the original value was a SAFEARRAY, then the VARIANT will contain
|
|
// the embedded SAFEARRAY.
|
|
//
|
|
//***************************************************************************
|
|
|
|
void CVar::FillVariant(VARIANT* pNew, BOOL fOptimized/* = FALSE*/)
|
|
{
|
|
switch (m_vt) {
|
|
case VT_NULL:
|
|
V_VT(pNew) = VT_NULL;
|
|
break;
|
|
|
|
case VT_BOOL:
|
|
V_VT(pNew) = VT_BOOL;
|
|
V_BOOL(pNew) = (m_value.boolVal ? VARIANT_TRUE : VARIANT_FALSE);
|
|
break;
|
|
|
|
case VT_BSTR:
|
|
|
|
// Set type afterwards here so if the SysAlloc throws an exception, the
|
|
// type will not have been reset to a VT_BSTR which could cause a subtle
|
|
// memory corruption (or worse) if VariantClear is called - SJS
|
|
|
|
V_BSTR(pNew) = COleAuto::_SysAllocString(m_value.Str);
|
|
V_VT(pNew) = VT_BSTR;
|
|
break;
|
|
|
|
case VT_DISPATCH:
|
|
V_VT(pNew) = VT_DISPATCH;
|
|
V_DISPATCH(pNew) = m_value.pDisp;
|
|
if(m_value.pDisp) m_value.pDisp->AddRef();
|
|
break;
|
|
|
|
case VT_UNKNOWN:
|
|
V_VT(pNew) = VT_UNKNOWN;
|
|
V_UNKNOWN(pNew) = m_value.pUnk;
|
|
if(m_value.pUnk) m_value.pUnk->AddRef();
|
|
break;
|
|
|
|
case VT_UI1:
|
|
V_VT(pNew) = VT_UI1;
|
|
V_UI1(pNew) = m_value.bVal;
|
|
break;
|
|
|
|
case VT_I4:
|
|
V_VT(pNew) = VT_I4;
|
|
V_I4(pNew) = m_value.lVal;
|
|
break;
|
|
|
|
case VT_I2:
|
|
V_VT(pNew) = VT_I2;
|
|
V_I2(pNew) = m_value.iVal;
|
|
break;
|
|
|
|
case VT_R4:
|
|
V_VT(pNew) = VT_R4;
|
|
V_R4(pNew) = m_value.fltVal;
|
|
break;
|
|
|
|
case VT_R8:
|
|
V_VT(pNew) = VT_R8;
|
|
V_R8(pNew) = m_value.dblVal;
|
|
break;
|
|
|
|
// An embedded CVarVector which must be converted
|
|
// to a SAFEARRAY.
|
|
// ==============================================
|
|
|
|
case VT_EX_CVARVECTOR:
|
|
{
|
|
// Set type afterwards here so if GetNewSafeArray throws an exception, the
|
|
// type will not have been reset to an Array which could cause a subtle
|
|
// memory corruption (or worse) if VariantClear is called - SJS
|
|
|
|
if ( fOptimized && m_value.pVarVector->IsOptimized() )
|
|
{
|
|
// This will get the actual SAFEARRAY pointer without
|
|
// copying what's underneath. Underlying code should
|
|
// not clear the array, since it is being acquired
|
|
V_ARRAY(pNew) = m_value.pVarVector->GetSafeArray( TRUE );
|
|
V_VT(pNew) = m_value.pVarVector->GetType() | VT_ARRAY;
|
|
}
|
|
else
|
|
{
|
|
V_ARRAY(pNew) = m_value.pVarVector->GetNewSafeArray();
|
|
V_VT(pNew) = m_value.pVarVector->GetType() | VT_ARRAY;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
COleAuto::_VariantClear(pNew);
|
|
}
|
|
}
|
|
|
|
VARIANT *CVar::GetNewVariant()
|
|
{
|
|
VARIANT *pNew = new VARIANT;
|
|
|
|
// Check for an allocation failure.
|
|
if ( NULL == pNew )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
COleAuto::_VariantInit(pNew);
|
|
|
|
FillVariant(pNew);
|
|
return pNew;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
//***************************************************************************
|
|
|
|
int CVar::DumpText(FILE *fStream)
|
|
{
|
|
return unsupported;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetLPWSTR
|
|
//
|
|
// Sets the value of the CVar to the indicated LPWSTR.
|
|
//
|
|
// PARAMETERS:
|
|
// pStr
|
|
// A pointer to the source string.
|
|
// bAcquire
|
|
// If TRUE, then the ownership of pStr is trasferred and becomes
|
|
// the internal pointer to the string. If FALSE, then the string
|
|
// is copied.
|
|
//
|
|
//***************************************************************************
|
|
|
|
BOOL CVar::SetLPWSTR(LPWSTR pStr, BOOL bAcquire)
|
|
{
|
|
m_vt = VT_LPWSTR;
|
|
if (bAcquire)
|
|
{
|
|
m_value.pWStr = pStr;
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
// Check for an allocation failure
|
|
if ( NULL != pStr )
|
|
{
|
|
size_t stringLength = wcslen(pStr) + 1;
|
|
m_value.pWStr = new wchar_t[stringLength];
|
|
|
|
if ( NULL == m_value.pWStr )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
StringCchCopyW( m_value.pWStr, stringLength, pStr );
|
|
}
|
|
else
|
|
{
|
|
m_value.pWStr = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetLPSTR
|
|
//
|
|
// Sets the value of the CVar to the indicated LPSTR.
|
|
//
|
|
// PARAMETERS:
|
|
// pStr
|
|
// A pointer to the source string.
|
|
// bAcquire
|
|
// If TRUE, then the ownership of pStr is trasferred and becomes
|
|
// the internal pointer to the string. If FALSE, then the string
|
|
// is copied (it must have been allocated with operator new).
|
|
//
|
|
//***************************************************************************
|
|
|
|
BOOL CVar::SetLPSTR(LPSTR pStr, BOOL bAcquire)
|
|
{
|
|
m_vt = VT_LPSTR;
|
|
if (bAcquire)
|
|
{
|
|
m_value.pStr = pStr;
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ( NULL != pStr)
|
|
{
|
|
size_t stringLength = strlen(pStr) + 1;
|
|
m_value.pStr = new char[stringLength];
|
|
|
|
// On failure, throw an exception
|
|
if ( NULL == m_value.pStr )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
StringCchCopyA( m_value.pStr, stringLength, pStr );
|
|
}
|
|
else
|
|
{
|
|
m_value.pStr = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetBSTR
|
|
//
|
|
// Sets the value of the CVar to the indicated BSTR.
|
|
//
|
|
// NOTE: This BSTR value is actually stored as an LPWSTR to avoid
|
|
// apartment-threading restrictions on real BSTR objects allocated
|
|
// with COleAuto::_SysAllocString.
|
|
//
|
|
// PARAMETERS:
|
|
// str
|
|
// A pointer to the string, which is copied into an internal LPWSTR.
|
|
// bAcquire
|
|
// If FALSE, then the BSTR is treated as read-only and copied.
|
|
// If TRUE, then this function becomes owner of the BSTR and
|
|
// frees it after the copy is made.
|
|
//
|
|
//***************************************************************************
|
|
|
|
BOOL CVar::SetBSTR(BSTR str)
|
|
{
|
|
m_vt = VT_BSTR;
|
|
if (0 == str)
|
|
{
|
|
m_value.Str = 0;
|
|
return TRUE;
|
|
}
|
|
|
|
m_value.Str = SysAllocString(str);
|
|
|
|
if ( NULL == m_value.Str )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
// return whether or not we obtained a value
|
|
return (TRUE );
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetBSTR
|
|
//
|
|
// Sets the value of the CVar to the indicated BSTR.
|
|
//
|
|
// NOTE: This BSTR value is actually stored as an LPWSTR to avoid
|
|
// apartment-threading restrictions on real BSTR objects allocated
|
|
// with COleAuto::_SysAllocString.
|
|
//
|
|
// PARAMETERS:
|
|
// str
|
|
// A pointer to the string, which is copied into an internal LPWSTR.
|
|
// bAcquire
|
|
// If FALSE, then the BSTR is treated as read-only and copied.
|
|
// If TRUE, then this function becomes owner of the BSTR and
|
|
// frees it after the copy is made.
|
|
//
|
|
//***************************************************************************
|
|
|
|
BOOL CVar::SetBSTR(auto_bstr str)
|
|
{
|
|
m_vt = VT_BSTR;
|
|
|
|
m_value.Str = str.release();
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::GetBSTR
|
|
//
|
|
// Returns the BSTR value of the current object.
|
|
//
|
|
// RETURN VALUE:
|
|
// A newly allocated BSTR which must be freed with COleAuto::_SysFreeString().
|
|
//
|
|
//***************************************************************************
|
|
|
|
BSTR CVar::GetBSTR()
|
|
{
|
|
if (m_vt != VT_BSTR)
|
|
return NULL;
|
|
return COleAuto::_SysAllocString(m_value.pWStr);
|
|
}
|
|
|
|
void CVar::SetDispatch(IDispatch* pDisp)
|
|
{
|
|
m_vt = VT_DISPATCH;
|
|
m_value.pDisp = pDisp;
|
|
|
|
if(pDisp)
|
|
{
|
|
pDisp->AddRef();
|
|
}
|
|
}
|
|
|
|
void CVar::SetUnknown(IUnknown* pUnk)
|
|
{
|
|
m_vt = VT_UNKNOWN;
|
|
m_value.pUnk = pUnk;
|
|
|
|
if(pUnk)
|
|
{
|
|
pUnk->AddRef();
|
|
}
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetBlob
|
|
//
|
|
// Sets the object to the value of the BLOB object.
|
|
//
|
|
// PARAMETERS:
|
|
// pBlob
|
|
// A pointer to a valid VT_BLOB object.
|
|
// bAcquire
|
|
// If TRUE, then the pointer to the data will be acquired. It must
|
|
// have been allocated with operator new in the current process,
|
|
// since operator delete will be used to free it.
|
|
//
|
|
//***************************************************************************
|
|
|
|
void CVar::SetBlob(BLOB *pBlob, BOOL bAcquire)
|
|
{
|
|
m_vt = VT_BLOB;
|
|
if (pBlob == 0)
|
|
BlobClear(&m_value.Blob);
|
|
else if (!bAcquire)
|
|
m_value.Blob = BlobCopy(pBlob);
|
|
else
|
|
m_value.Blob = *pBlob;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetClsId
|
|
//
|
|
// Sets the value of the object to a CLSID.
|
|
//
|
|
// PARAMETERS:
|
|
// pClsId
|
|
// Points the source CLSID.
|
|
// bAcquire
|
|
// If TRUE, the ownership of the pointer is transferred to the
|
|
// object. The CLSID must have been allocated with operator new.
|
|
// If FALSE, the caller retains ownership and a copy is made.
|
|
//
|
|
//***************************************************************************
|
|
|
|
void CVar::SetClsId(CLSID *pClsId, BOOL bAcquire)
|
|
{
|
|
m_vt = VT_CLSID;
|
|
if (pClsId == 0)
|
|
m_value.pClsId = 0;
|
|
else
|
|
{
|
|
m_value.pClsId = new CLSID(*pClsId);
|
|
|
|
// Check for an allocation failure.
|
|
if ( NULL == m_value.pClsId )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::SetVarVector
|
|
//
|
|
// Sets the value of the object to the specified CVarVector. This
|
|
// allows the CVar to contain a complete array.
|
|
//
|
|
// PARAMETERS:
|
|
// pVec
|
|
// A pointer to the CVarVector object which is the source.
|
|
// bAcquire
|
|
// If TRUE, then ownership of the CVarVector is transferred to
|
|
// the object. If FALSE, a new copy of the CVarVector is made and
|
|
// the caller retains ownership.
|
|
//
|
|
//***************************************************************************
|
|
|
|
void CVar::SetVarVector(CVarVector *pVec, BOOL bAcquire)
|
|
{
|
|
m_vt = VT_EX_CVARVECTOR;
|
|
|
|
if (bAcquire) {
|
|
// If here, we acquire the caller's pointer.
|
|
// =========================================
|
|
m_value.pVarVector = pVec;
|
|
return;
|
|
}
|
|
|
|
// If here, make a copy.
|
|
// =====================
|
|
|
|
m_value.pVarVector = new CVarVector(*pVec);
|
|
|
|
// Check for an allocation failure.
|
|
if ( NULL == m_value.pVarVector )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
|
|
}
|
|
|
|
int CVar::GetOleType()
|
|
{
|
|
if(m_vt == VT_EX_CVARVECTOR)
|
|
{
|
|
if(m_value.pVarVector == NULL) return VT_ARRAY;
|
|
else return VT_ARRAY | m_value.pVarVector->GetType();
|
|
}
|
|
else
|
|
{
|
|
return m_vt;
|
|
}
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVar::GetText
|
|
//
|
|
// Produces textual representation of the Var's type and data
|
|
//
|
|
// PARAMETERS:
|
|
// long lFlags reseved, must be 0
|
|
// long lType CIM_TYPE
|
|
// LPCWSTR szFormat optional formatting string
|
|
//
|
|
//
|
|
//***************************************************************************
|
|
|
|
BSTR CVar::GetText(long lFlags, long lType, LPCWSTR szFormat)
|
|
{
|
|
if(m_vt == VT_EX_CVARVECTOR)
|
|
{
|
|
// When we get the text for the array, make sure the CIM_FLAG_ARRAY is masked out
|
|
BSTR strTemp = GetVarVector()->GetText(lFlags, lType & ~CIM_FLAG_ARRAY);
|
|
CSysFreeMe auto1(strTemp);
|
|
|
|
size_t bufferSize = COleAuto::_SysStringLen(strTemp) + 3;
|
|
WCHAR* wszValue = new WCHAR[bufferSize];
|
|
|
|
// Check for allocation failures
|
|
if ( NULL == wszValue )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
CVectorDeleteMe<WCHAR> auto2(wszValue);
|
|
|
|
StringCchCopyW(wszValue, bufferSize, L"{");
|
|
StringCchCatW(wszValue, bufferSize, strTemp);
|
|
StringCchCatW(wszValue, bufferSize, L"}");
|
|
|
|
BSTR strRet = COleAuto::_SysAllocString(wszValue);
|
|
|
|
return strRet;
|
|
}
|
|
|
|
WCHAR* wszValue = new WCHAR[100];
|
|
|
|
// Check for allocation failures
|
|
if ( NULL == wszValue )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
|
|
WCHAR* pwc;
|
|
int i;
|
|
|
|
if(m_vt == VT_NULL)
|
|
{
|
|
delete [] wszValue;
|
|
return NULL;
|
|
}
|
|
|
|
if(lType == 0)
|
|
lType = m_vt;
|
|
|
|
try
|
|
{
|
|
switch(lType)
|
|
{
|
|
case CIM_SINT8:
|
|
StringCchPrintfW(wszValue, 100, szFormat ? szFormat : L"%d", (long)(signed char)GetByte());
|
|
break;
|
|
|
|
case CIM_UINT8:
|
|
StringCchPrintfW(wszValue, 100, szFormat ? szFormat : L"%d", GetByte());
|
|
break;
|
|
|
|
case CIM_SINT16:
|
|
StringCchPrintfW(wszValue, 100, szFormat ? szFormat : L"%d", (long)GetShort());
|
|
break;
|
|
|
|
case CIM_UINT16:
|
|
StringCchPrintfW(wszValue, 100, szFormat ? szFormat : L"%d", (long)(USHORT)GetShort());
|
|
break;
|
|
|
|
case CIM_SINT32:
|
|
StringCchPrintfW(wszValue, 100, szFormat ? szFormat : L"%d", GetLong());
|
|
break;
|
|
|
|
case CIM_UINT32:
|
|
StringCchPrintfW(wszValue, 100, szFormat ? szFormat : L"%lu", (ULONG)GetLong());
|
|
break;
|
|
|
|
case CIM_BOOLEAN:
|
|
StringCchPrintfW(wszValue, 100, L"%s", (GetBool()?L"TRUE":L"FALSE"));
|
|
break;
|
|
|
|
case CIM_REAL32:
|
|
{
|
|
// Since the decimal point can be localized, and MOF text should
|
|
// always be english, we will return values localized to 0x409,
|
|
|
|
CVar var( GetFloat() );
|
|
|
|
// If this fails, we can't guarantee a good value,
|
|
// so throw an exception.
|
|
|
|
if ( !var.ChangeTypeToEx( VT_BSTR ) )
|
|
{
|
|
throw CX_Exception();
|
|
}
|
|
|
|
StringCchCopyW( wszValue, 100, var.GetLPWSTR() );
|
|
}
|
|
break;
|
|
|
|
case CIM_REAL64:
|
|
{
|
|
// Since the decimal point can be localized, and MOF text should
|
|
// always be english, we will return values localized to 0x409,
|
|
|
|
CVar var( GetDouble() );
|
|
|
|
// If this fails, we can't guarantee a good value,
|
|
// so throw an exception.
|
|
|
|
if ( !var.ChangeTypeToEx( VT_BSTR ) )
|
|
{
|
|
throw CX_Exception();
|
|
}
|
|
|
|
StringCchCopyW( wszValue, 100, var.GetLPWSTR() );
|
|
}
|
|
break;
|
|
|
|
case CIM_CHAR16:
|
|
if(GetShort() == 0)
|
|
StringCchCopyW(wszValue, 100, L"0x0");
|
|
else
|
|
StringCchPrintfW(wszValue, 100, L"'\\x%X'", (WCHAR)GetShort());
|
|
break;
|
|
|
|
case CIM_OBJECT:
|
|
StringCchPrintfW(wszValue, 100, L"\"not supported\"");
|
|
break;
|
|
|
|
case CIM_REFERENCE:
|
|
case CIM_DATETIME:
|
|
case CIM_STRING:
|
|
case CIM_SINT64:
|
|
case CIM_UINT64:
|
|
{
|
|
// Escape all the quotes
|
|
// =====================
|
|
|
|
int nStrLen = wcslen(GetLPWSTR());
|
|
delete [] wszValue;
|
|
wszValue = NULL;
|
|
|
|
wszValue = new WCHAR[nStrLen*2+10];
|
|
|
|
// Check for allocation failures
|
|
if ( NULL == wszValue )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
wszValue[0] = L'"';
|
|
pwc = wszValue+1;
|
|
for(i = 0; i < (int)nStrLen; i++)
|
|
{
|
|
WCHAR wch = GetLPWSTR()[i];
|
|
if(wch == L'\n')
|
|
{
|
|
*(pwc++) = L'\\';
|
|
*(pwc++) = L'n';
|
|
}
|
|
else if(wch == L'\t')
|
|
{
|
|
*(pwc++) = L'\\';
|
|
*(pwc++) = L't';
|
|
}
|
|
else if(wch == L'"' || wch == L'\\')
|
|
{
|
|
*(pwc++) = L'\\';
|
|
*(pwc++) = wch;
|
|
}
|
|
else
|
|
{
|
|
*(pwc++) = wch;
|
|
}
|
|
}
|
|
*(pwc++) = L'"';
|
|
*pwc = 0;
|
|
}
|
|
break;
|
|
default:
|
|
StringCchPrintfW(wszValue, 100, L"\"not supported\"");
|
|
break;
|
|
}
|
|
|
|
BSTR strRes = COleAuto::_SysAllocString(wszValue);
|
|
|
|
// Still need to clean up this value
|
|
delete [] wszValue;
|
|
|
|
return strRes;
|
|
}
|
|
catch (...)
|
|
{
|
|
// Cleanup always if this has a value
|
|
if ( NULL != wszValue )
|
|
{
|
|
delete [] wszValue;
|
|
}
|
|
|
|
// Rethrow the exception
|
|
throw;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
BSTR CVar::TypeToText(int nType)
|
|
{
|
|
const WCHAR* pwcType;
|
|
|
|
switch(nType)
|
|
{
|
|
case VT_I1:
|
|
pwcType = L"sint8";
|
|
break;
|
|
|
|
case VT_UI1:
|
|
pwcType = L"uint8";
|
|
break;
|
|
|
|
case VT_I2:
|
|
pwcType = L"sint16";
|
|
break;
|
|
|
|
case VT_UI2:
|
|
pwcType = L"uint16";
|
|
break;
|
|
|
|
case VT_I4:
|
|
pwcType = L"sint32";
|
|
break;
|
|
|
|
case VT_UI4:
|
|
pwcType = L"uint32";
|
|
break;
|
|
|
|
case VT_I8:
|
|
pwcType = L"sint64";
|
|
break;
|
|
|
|
case VT_UI8:
|
|
pwcType = L"uint64";
|
|
break;
|
|
|
|
case VT_BOOL:
|
|
pwcType = L"boolean";
|
|
break;
|
|
|
|
case VT_R4:
|
|
pwcType = L"real32";
|
|
break;
|
|
|
|
case VT_R8:
|
|
pwcType = L"real64";
|
|
break;
|
|
|
|
case VT_BSTR:
|
|
pwcType = L"string";
|
|
break;
|
|
|
|
case VT_DISPATCH:
|
|
pwcType = L"object";
|
|
break;
|
|
|
|
case VT_UNKNOWN:
|
|
pwcType = L"object";
|
|
break;
|
|
|
|
default:
|
|
return NULL;
|
|
}
|
|
|
|
return COleAuto::_SysAllocString(pwcType);
|
|
}
|
|
|
|
BSTR CVar::GetTypeText()
|
|
{
|
|
if ( m_vt == VT_EX_CVARVECTOR )
|
|
{
|
|
return TypeToText(GetVarVector()->GetType());
|
|
}
|
|
else
|
|
{
|
|
return TypeToText(m_vt);
|
|
}
|
|
}
|
|
|
|
BOOL CVar::ChangeTypeTo(VARTYPE vtNew)
|
|
{
|
|
// TBD: there are more efficient ways!
|
|
// ===================================
|
|
|
|
// Create a VARIANT
|
|
// ================
|
|
|
|
VARIANT v;
|
|
CClearMe auto1(&v);
|
|
|
|
COleAuto::_VariantInit(&v);
|
|
FillVariant(&v);
|
|
|
|
// Coerce it
|
|
// =========
|
|
|
|
HRESULT hres = COleAuto::_WbemVariantChangeType(&v, &v, vtNew);
|
|
if(FAILED(hres))
|
|
return FALSE;
|
|
|
|
// Load it back in
|
|
// ===============
|
|
|
|
Empty();
|
|
SetVariant(&v, TRUE);
|
|
|
|
// If this is an array, we will now be sitting on an optimized array
|
|
// meaning that we will have acquired the actual safe array - so we should
|
|
// make sure that the CVarVector cleans up the array when it is no longer
|
|
// necessary. We will clear out the variant so it doesn't get deleted
|
|
// when VariantClear is called.
|
|
|
|
if ( m_vt == VT_EX_CVARVECTOR )
|
|
{
|
|
m_value.pVarVector->SetRawArrayBinding( CSafeArray::auto_delete );
|
|
ZeroMemory( &v, sizeof(v) );
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
// Performs localized changes (defaults to 0x409 for this)
|
|
BOOL CVar::ChangeTypeToEx(VARTYPE vtNew, LCID lcid /*=0x409*/)
|
|
{
|
|
// TBD: there are more efficient ways!
|
|
// ===================================
|
|
|
|
// Create a VARIANT
|
|
// ================
|
|
|
|
VARIANT v;
|
|
CClearMe auto1(&v);
|
|
|
|
COleAuto::_VariantInit(&v);
|
|
FillVariant(&v);
|
|
|
|
// Coerce it
|
|
// =========
|
|
|
|
try
|
|
{
|
|
HRESULT hres = COleAuto::_VariantChangeTypeEx(&v, &v, lcid, 0L, vtNew);
|
|
if(FAILED(hres))
|
|
return FALSE;
|
|
}
|
|
catch(...)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// Load it back in
|
|
// ===============
|
|
|
|
Empty();
|
|
SetVariant(&v, TRUE);
|
|
|
|
// If this is an array, we will now be sitting on an optimized array
|
|
// meaning that we will have acquired the actual safe array - so we should
|
|
// make sure that the CVarVector cleans up the array when it is no longer
|
|
// necessary. We will clear out the variant so it doesn't get deleted
|
|
// when VariantClear is called.
|
|
|
|
if ( m_vt == VT_EX_CVARVECTOR )
|
|
{
|
|
m_value.pVarVector->SetRawArrayBinding( CSafeArray::auto_delete );
|
|
ZeroMemory( &v, sizeof(v) );
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL CVar::ToSingleChar()
|
|
{
|
|
// Defer to CVarVector for arrays
|
|
// ==============================
|
|
|
|
if(m_vt == VT_EX_CVARVECTOR)
|
|
{
|
|
return GetVarVector()->ToSingleChar();
|
|
}
|
|
|
|
// Anything that's not a string follows normal OLE rules
|
|
// =====================================================
|
|
|
|
if(m_vt != VT_BSTR)
|
|
{
|
|
return ChangeTypeTo(VT_I2);
|
|
}
|
|
|
|
// It's a string. Make sure the length is 1
|
|
// ========================================
|
|
|
|
LPCWSTR wsz = GetLPWSTR();
|
|
if(wcslen(wsz) != 1)
|
|
return FALSE;
|
|
|
|
// Take the first character
|
|
// ========================
|
|
|
|
WCHAR wc = wsz[0];
|
|
Empty();
|
|
|
|
SetShort(wc);
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL CVar::ToUI4()
|
|
{
|
|
// Defer to CVarVector for arrays
|
|
// ==============================
|
|
|
|
if(m_vt == VT_EX_CVARVECTOR)
|
|
{
|
|
return GetVarVector()->ToUI4();
|
|
}
|
|
|
|
// Create a VARIANT
|
|
// ================
|
|
|
|
VARIANT v;
|
|
CClearMe auto1(&v);
|
|
|
|
COleAuto::_VariantInit(&v);
|
|
FillVariant(&v);
|
|
|
|
// Coerce it
|
|
// =========
|
|
|
|
HRESULT hres = COleAuto::_WbemVariantChangeType(&v, &v, VT_UI4);
|
|
if(FAILED(hres))
|
|
return FALSE;
|
|
|
|
// Load it back in
|
|
// ===============
|
|
|
|
Empty();
|
|
|
|
// Here we cheat and reset to VT_I4 so we can natively reset
|
|
V_VT(&v) = VT_I4;
|
|
SetVariant(&v);
|
|
return TRUE;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::CVarVector
|
|
//
|
|
// Default constructor. The caller should not attempt to add any
|
|
// elements when the internal type is VT_EMPTY. Objects constructed
|
|
// with this constructor should only be used as l-values in an
|
|
// assignment of CVarVector objects.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CVarVector::CVarVector()
|
|
: m_pSafeArray( NULL ),
|
|
m_pRawData( NULL )
|
|
{
|
|
m_Array.Empty();
|
|
m_nType = VT_EMPTY;
|
|
m_nStatus = no_error;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::CVarVector
|
|
//
|
|
// This is the standard constructor.
|
|
//
|
|
// PARAMETERS:
|
|
// nVarType
|
|
// An OLE VT_ type indicator. Heterogeneous arrays are possible
|
|
// if the type VT_EX_CVAR is used. Embedded CVarVectors can
|
|
// occur, since a CVar can in turn hold a CVarVector.
|
|
//
|
|
// nInitSize
|
|
// The starting size of the internal CFlexArray. See FLEXARRY.CPP.
|
|
// nGrowBy
|
|
// The "grow by" factor of the internal CFlexArray. See FLEXARRAY.CPP.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CVarVector::CVarVector(
|
|
int nVarType,
|
|
int nInitSize,
|
|
int nGrowBy
|
|
) :
|
|
m_Array(nInitSize, nGrowBy),
|
|
m_pSafeArray( NULL ),
|
|
m_pRawData( NULL )
|
|
|
|
{
|
|
m_nType = nVarType;
|
|
m_nStatus = no_error;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::CVarVector
|
|
//
|
|
// Alternate constructor to build a new CVarVector based on a
|
|
// SAFEARRAY object. The only supported types for the SAFEARRAY
|
|
// are VT_BSTR, VT_UI1, VT_I2, VT_I4, VT_R4, and VT_R8.
|
|
//
|
|
// PARAMETERS:
|
|
// nVarType
|
|
// The VT_ type indicator of the incoming SAFEARRAY.
|
|
// pSrc
|
|
// A pointer to a SAFEARRAY, which is treated as read-only.
|
|
//
|
|
// NOTES:
|
|
// This will set the internal m_nStatus variable to <unsupported> if
|
|
// an unsupported VT_ type is in the SAFEARRAY. The caller can immediately
|
|
// call CVarVector::Status() after construction to see if the operation
|
|
// was successful.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CVarVector::CVarVector(int nVarType, SAFEARRAY *pSrc, BOOL fOptimized /*= FALSE*/)
|
|
: m_pSafeArray( NULL ),
|
|
m_pRawData( NULL )
|
|
{
|
|
SAFEARRAY* pNew = NULL;
|
|
|
|
try
|
|
{
|
|
m_nType = nVarType;
|
|
|
|
// If not a valid vector type, this is unsupported
|
|
if ( !IsValidVectorArray( nVarType, pSrc ) )
|
|
{
|
|
m_nStatus = unsupported;
|
|
return;
|
|
}
|
|
|
|
if(pSrc == NULL)
|
|
{
|
|
// NULL safearray --- empty
|
|
// ========================
|
|
|
|
m_nStatus = no_error;
|
|
return;
|
|
}
|
|
|
|
// Bind to the incoming SAFEARRAY, but don't delete it during destruct.
|
|
// ====================================================================
|
|
|
|
if(COleAuto::_SafeArrayGetDim(pSrc) != 1)
|
|
{
|
|
m_nStatus = unsupported;
|
|
return;
|
|
}
|
|
|
|
long lLBound, lUBound;
|
|
COleAuto::_SafeArrayGetLBound(pSrc, 1, &lLBound);
|
|
COleAuto::_SafeArrayGetUBound(pSrc, 1, &lUBound);
|
|
|
|
if(lLBound != 0)
|
|
{
|
|
// Non-0-based safearray --- since CSafeArray doesn't support that, and
|
|
// we can't change pSrc, create a copy
|
|
// ====================================================================
|
|
|
|
if(FAILED(COleAuto::_SafeArrayCopy(pSrc, &pNew)))
|
|
{
|
|
m_nStatus = failed;
|
|
return;
|
|
}
|
|
|
|
SAFEARRAYBOUND sfb;
|
|
sfb.cElements = (lUBound - lLBound) + 1;
|
|
sfb.lLbound = 0;
|
|
COleAuto::_SafeArrayRedim(pNew, &sfb);
|
|
}
|
|
else
|
|
{
|
|
pNew = pSrc;
|
|
}
|
|
|
|
if ( fOptimized )
|
|
{
|
|
// If we rebased the array, then we need to clean it up on delete, otherwise,
|
|
// we don't
|
|
if ( pNew != pSrc )
|
|
{
|
|
m_pSafeArray = new CSafeArray( pNew, nVarType, CSafeArray::auto_delete | CSafeArray::bind);
|
|
}
|
|
else
|
|
{
|
|
m_pSafeArray = new CSafeArray( pNew, nVarType, CSafeArray::no_delete | CSafeArray::bind);
|
|
}
|
|
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_pSafeArray->Status() != CSafeArray::no_error )
|
|
{
|
|
delete m_pSafeArray;
|
|
m_pSafeArray = NULL;
|
|
m_nStatus = failed;
|
|
}
|
|
|
|
m_nStatus = no_error;
|
|
|
|
}
|
|
else
|
|
{
|
|
CSafeArray sa(pNew, nVarType, CSafeArray::no_delete | CSafeArray::bind);
|
|
|
|
for (int i = 0; i < sa.Size(); i++) {
|
|
|
|
CVar* pVar = NULL;
|
|
|
|
switch (m_nType) {
|
|
case VT_BOOL:
|
|
{
|
|
VARIANT_BOOL boolVal = sa.GetBoolAt(i);
|
|
|
|
pVar = new CVar(boolVal, VT_BOOL);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case VT_UI1:
|
|
{
|
|
BYTE b = sa.GetByteAt(i);
|
|
|
|
pVar = new CVar(b);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VT_I2:
|
|
{
|
|
SHORT s = sa.GetShortAt(i);
|
|
|
|
pVar = new CVar(s);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VT_I4:
|
|
{
|
|
LONG l = sa.GetLongAt(i);
|
|
|
|
pVar = new CVar(l);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VT_R4:
|
|
{
|
|
float f = sa.GetFloatAt(i);
|
|
|
|
pVar = new CVar(f);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VT_R8:
|
|
{
|
|
double d = sa.GetDoubleAt(i);
|
|
|
|
pVar = new CVar(d);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VT_BSTR:
|
|
{
|
|
BSTR bstr = sa.GetBSTRAtThrow(i);
|
|
CSysFreeMe auto1(bstr);
|
|
|
|
pVar = new CVar(VT_BSTR, bstr);
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
break;
|
|
}
|
|
case VT_DISPATCH:
|
|
{
|
|
IDispatch* pDisp = sa.GetDispatchAt(i);
|
|
CReleaseMe auto2(pDisp);
|
|
|
|
pVar = new CVar;
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
pVar->SetDispatch(pDisp);
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
case VT_UNKNOWN:
|
|
{
|
|
IUnknown* pUnk = sa.GetUnknownAt(i);
|
|
CReleaseMe auto3(pUnk);
|
|
pVar = new CVar;
|
|
|
|
// Check for allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
pVar->SetUnknown(pUnk);
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
m_nStatus = unsupported;
|
|
if(pNew != pSrc)
|
|
COleAuto::_SafeArrayDestroy(pNew);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if(pNew != pSrc)
|
|
COleAuto::_SafeArrayDestroy(pNew);
|
|
|
|
m_nStatus = no_error;
|
|
|
|
} // Else not bound
|
|
}
|
|
catch (CX_MemoryException)
|
|
{
|
|
// SafeArrayCopy, GetBSTRAtThrow, new can all throw exceptions
|
|
|
|
m_nStatus = failed;
|
|
|
|
if(pNew != pSrc)
|
|
COleAuto::_SafeArrayDestroy(pNew);
|
|
|
|
throw;
|
|
}
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::GetNewSafeArray
|
|
//
|
|
// Allocates a new SAFEARRAY equivalent to the current CVarVector.
|
|
//
|
|
// RETURN VALUE:
|
|
// A new SAFEARRAY pointer which must be deallocated with
|
|
// SafeArrayDestroy(). Returns NULL on error or unsupported types.
|
|
//
|
|
//***************************************************************************
|
|
|
|
SAFEARRAY *CVarVector::GetNewSafeArray()
|
|
{
|
|
SAFEARRAY *pRetValue = NULL;
|
|
|
|
CSafeArray *pArray = new CSafeArray(m_nType, CSafeArray::no_delete);
|
|
|
|
// Check for an allocation failure
|
|
if ( NULL == pArray )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
CDeleteMe<CSafeArray> auto1(pArray);
|
|
|
|
int nSize = Size();
|
|
|
|
for (int i = 0; i < nSize; i++) {
|
|
CVar v;
|
|
|
|
FillCVarAt( i, v );
|
|
switch (m_nType) {
|
|
case VT_UI1:
|
|
pArray->AddByte(v.GetByte());
|
|
break;
|
|
|
|
case VT_I2:
|
|
pArray->AddShort(v.GetShort());
|
|
break;
|
|
|
|
case VT_I4:
|
|
pArray->AddLong(v.GetLong());
|
|
break;
|
|
|
|
case VT_R4:
|
|
pArray->AddFloat(v.GetFloat());
|
|
break;
|
|
|
|
case VT_R8:
|
|
pArray->AddDouble(v.GetDouble());
|
|
break;
|
|
|
|
case VT_BOOL:
|
|
pArray->AddBool(v.GetBool());
|
|
break;
|
|
|
|
case VT_BSTR:
|
|
{
|
|
BSTR s = v.GetBSTR();
|
|
CSysFreeMe auto2(s);
|
|
pArray->AddBSTR(s);
|
|
break;
|
|
}
|
|
case VT_DISPATCH:
|
|
{
|
|
IDispatch* pDisp = v.GetDispatch();
|
|
CReleaseMe auto3(pDisp);
|
|
pArray->AddDispatch(pDisp);
|
|
break;
|
|
}
|
|
case VT_UNKNOWN:
|
|
{
|
|
IUnknown* pUnk = v.GetUnknown();
|
|
CReleaseMe auto4(pUnk);
|
|
pArray->AddUnknown(pUnk);
|
|
break;
|
|
}
|
|
default:
|
|
// For unsupported types, return a NULL.
|
|
// Since we constructed the SAFEARRAY object to
|
|
// not delete the SAFEARRAY and we have encountered
|
|
// a condition where the internal SAFEARRAY of
|
|
// CSafeArray should not be returned, we have
|
|
// to switch our destruct policy.
|
|
// ================================================
|
|
pArray->SetDestructorPolicy(CSafeArray::auto_delete);
|
|
return 0;
|
|
} // SWITCH
|
|
|
|
}// FOR enum elements
|
|
|
|
// Final cleanup. Get the SAFEARRAY pointer, and delete
|
|
// the wrapper.
|
|
// =====================================================
|
|
|
|
pArray->Trim();
|
|
|
|
pRetValue = pArray->GetArray();
|
|
|
|
return pRetValue;
|
|
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::GetSafeArray
|
|
//
|
|
// Returns a direct pointer to the underlying SafeArray. If fAcquire is
|
|
// set, the array is returned, and cleared from underneath
|
|
//
|
|
// RETURN VALUE:
|
|
// A SAFEARRAY pointer which must be deallocated with
|
|
// SafeArrayDestroy() if fAcquire is set to TRUE
|
|
//
|
|
//***************************************************************************
|
|
|
|
SAFEARRAY *CVarVector::GetSafeArray( BOOL fAcquire /* = FALSE */)
|
|
{
|
|
SAFEARRAY* psa = NULL;
|
|
|
|
_DBG_ASSERT( NULL != m_pSafeArray );
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
if ( fAcquire )
|
|
{
|
|
// Unaccess data if appropriate
|
|
if ( NULL != m_pRawData )
|
|
{
|
|
m_pSafeArray->Unaccess();
|
|
m_pRawData = NULL;
|
|
}
|
|
|
|
psa = m_pSafeArray->GetArray();
|
|
|
|
// Now clear the array
|
|
m_pSafeArray->SetDestructorPolicy( CSafeArray::no_delete );
|
|
delete m_pSafeArray;
|
|
m_pSafeArray = NULL;
|
|
|
|
}
|
|
else
|
|
{
|
|
psa = m_pSafeArray->GetArray();
|
|
}
|
|
}
|
|
|
|
return psa;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::~CVarVector
|
|
//
|
|
// Destructor.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CVarVector::~CVarVector()
|
|
{
|
|
Empty();
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::Empty
|
|
//
|
|
//***************************************************************************
|
|
|
|
void CVarVector::Empty()
|
|
{
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
delete m_pSafeArray;
|
|
}
|
|
|
|
for (int i = 0; i < m_Array.Size(); i++) {
|
|
delete (CVar *) m_Array[i];
|
|
}
|
|
m_Array.Empty();
|
|
m_nType = VT_EMPTY;
|
|
m_nStatus = no_error;
|
|
m_pSafeArray = NULL;
|
|
m_pRawData = NULL;
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::CVarVector
|
|
//
|
|
// Copy constructor. This is implemented via the assignment operator.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CVarVector::CVarVector(CVarVector &Src)
|
|
: m_pSafeArray( NULL ),
|
|
m_pRawData( NULL )
|
|
{
|
|
m_nType = 0;
|
|
m_nStatus = no_error;
|
|
*this = Src;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::operator =
|
|
//
|
|
// Assignment operator.
|
|
//
|
|
//***************************************************************************
|
|
|
|
CVarVector& CVarVector::operator =(CVarVector &Src)
|
|
{
|
|
Empty();
|
|
|
|
if ( NULL != Src.m_pSafeArray )
|
|
{
|
|
m_pSafeArray = new CSafeArray( *Src.m_pSafeArray );
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
if ( m_pSafeArray->Status() != CSafeArray::no_error )
|
|
{
|
|
delete m_pSafeArray;
|
|
throw CX_MemoryException();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < Src.m_Array.Size(); i++)
|
|
{
|
|
CVar* pVar = new CVar(*(CVar *) Src.m_Array[i]);
|
|
|
|
// Check for an allocation failure
|
|
if ( NULL == pVar )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
if ( m_Array.Add( pVar ) != CFlexArray::no_error )
|
|
{
|
|
delete pVar;
|
|
throw CX_MemoryException();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
m_nStatus = Src.m_nStatus;
|
|
m_nType = Src.m_nType;
|
|
|
|
return *this;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::operator ==
|
|
//
|
|
// Equality test operator.
|
|
//
|
|
//***************************************************************************
|
|
|
|
int CVarVector::operator ==(CVarVector &Src)
|
|
{
|
|
return CompareTo(Src, TRUE);
|
|
}
|
|
|
|
BOOL CVarVector::CompareTo(CVarVector& Src, BOOL bIgnoreCase)
|
|
{
|
|
if (m_nType != Src.m_nType)
|
|
return 0;
|
|
|
|
// Need to do things indirectly here, since we are possibly mixing
|
|
// CVarVectors not on SAFEARRAYs and those on SAFEARRAYs
|
|
int Src_Size = Src.Size();
|
|
if ( Size() != Src_Size )
|
|
return 0;
|
|
|
|
// Allocate the variants
|
|
for (int i = 0; i < Src_Size; i++)
|
|
{
|
|
CVar varThis;
|
|
CVar varThat;
|
|
|
|
FillCVarAt( i, varThis );
|
|
Src.FillCVarAt( i, varThat );
|
|
|
|
if ( !varThis.CompareTo( varThat, bIgnoreCase ) )
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::Add
|
|
//
|
|
// Adds a new CVar to the array. A reference is used so that anonymous
|
|
// objects can be constructed in the Add() call:
|
|
//
|
|
// pVec->Add(CVar(33));
|
|
//
|
|
// PARAMETERS:
|
|
// Value
|
|
// A reference to a CVar object of the correct type for the array.
|
|
// No type checking is done.
|
|
//
|
|
// RETURN VALUE:
|
|
// no_error
|
|
// failed
|
|
//
|
|
//***************************************************************************
|
|
|
|
int CVarVector::Add(CVar &Value)
|
|
{
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
switch ( Value.GetType() )
|
|
{
|
|
case VT_BOOL:
|
|
// We can store differently from what is expected in Variants, hence we
|
|
// need to make sure to convert
|
|
m_pSafeArray->AddBool( Value.GetBool() ? VARIANT_TRUE : VARIANT_FALSE );
|
|
break;
|
|
|
|
case VT_UI1:
|
|
m_pSafeArray->AddByte( Value.GetByte() );
|
|
break;
|
|
|
|
case VT_I2:
|
|
m_pSafeArray->AddShort( Value.GetShort() );
|
|
break;
|
|
|
|
case VT_I4:
|
|
m_pSafeArray->AddLong( Value.GetLong() );
|
|
break;
|
|
|
|
case VT_R4:
|
|
m_pSafeArray->AddFloat( Value.GetFloat() );
|
|
break;
|
|
|
|
case VT_R8:
|
|
m_pSafeArray->AddDouble( Value.GetDouble() );
|
|
break;
|
|
|
|
case VT_BSTR:
|
|
m_pSafeArray->AddBSTR( Value.GetBSTR() );
|
|
break;
|
|
|
|
case VT_UNKNOWN:
|
|
m_pSafeArray->AddUnknown( Value.GetUnknown() );
|
|
break;
|
|
|
|
default:
|
|
return failed;
|
|
}
|
|
|
|
return no_error;
|
|
}
|
|
else
|
|
{
|
|
CVar *p = new CVar(Value);
|
|
|
|
// Check for allocation failures
|
|
if ( NULL == p )
|
|
{
|
|
return failed;
|
|
}
|
|
|
|
if (m_Array.Add(p) != CFlexArray::no_error)
|
|
{
|
|
delete p;
|
|
return failed;
|
|
}
|
|
|
|
return no_error;
|
|
}
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::Add
|
|
//
|
|
// Adds a new CVar to the array. This overload simply takes ownership
|
|
// of the incoming pointer and adds it directly.
|
|
//
|
|
// PARAMETERS:
|
|
// pAcquiredPtr
|
|
// A pointer to a CVar object which is acquired by the vector.
|
|
//
|
|
// RETURN VALUE:
|
|
// no_error
|
|
// failed
|
|
//
|
|
//***************************************************************************
|
|
|
|
int CVarVector::Add(CVar *pAcquiredPtr)
|
|
{
|
|
// Not a valid operation if we are sitting on a SAFEARRAY
|
|
_DBG_ASSERT( NULL == m_pSafeArray );
|
|
|
|
// We don't support this if we are optimized to
|
|
// us a safe array directly
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
return failed;
|
|
}
|
|
|
|
if (m_Array.Add(pAcquiredPtr) != CFlexArray::no_error)
|
|
{
|
|
return failed;
|
|
}
|
|
|
|
return no_error;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::RemoveAt
|
|
//
|
|
// Removes the array element at the specified index.
|
|
//
|
|
// PARAMETERS:
|
|
// nIndex
|
|
// The location at which to remove the element.
|
|
//
|
|
// RETURN VALUE:
|
|
// no_error
|
|
// On success.
|
|
// failed
|
|
// On range errors, etc.
|
|
//
|
|
//***************************************************************************
|
|
|
|
int CVarVector::RemoveAt(int nIndex)
|
|
{
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
if ( m_pSafeArray->RemoveAt( nIndex ) != CSafeArray::no_error )
|
|
{
|
|
return failed;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
CVar *p = (CVar *) m_Array[nIndex];
|
|
delete p;
|
|
if (m_Array.RemoveAt(nIndex) != CFlexArray::no_error)
|
|
return failed;
|
|
}
|
|
|
|
return no_error;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CVarVector::InsertAt
|
|
//
|
|
// Inserts the new element at the specified location.
|
|
//
|
|
// PARAMETERS:
|
|
// nIndex
|
|
// The location at which to add the new element.
|
|
// Value
|
|
// A reference to the new value.
|
|
//
|
|
// RETURN VALUE:
|
|
// no_error
|
|
// On success.
|
|
// failed
|
|
// An invalid nIndex value was specified.
|
|
//
|
|
//***************************************************************************
|
|
|
|
int CVarVector::InsertAt(int nIndex, CVar &Value)
|
|
{
|
|
// We don't support this if we are optimized to
|
|
// us a safe array directly
|
|
|
|
_DBG_ASSERT( NULL == m_pSafeArray );
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
return failed;
|
|
}
|
|
|
|
CVar *pNew = new CVar(Value);
|
|
|
|
// Check for allocation failures
|
|
if ( NULL == pNew )
|
|
{
|
|
return failed;
|
|
}
|
|
|
|
if (m_Array.InsertAt(nIndex, pNew) != CFlexArray::no_error)
|
|
{
|
|
delete pNew;
|
|
return failed;
|
|
}
|
|
return no_error;
|
|
}
|
|
|
|
|
|
BSTR CVarVector::GetText(long lFlags, long lType/* = 0 */)
|
|
{
|
|
// Construct an array of values
|
|
// ============================
|
|
|
|
BSTR* aTexts = NULL;
|
|
int i;
|
|
|
|
try
|
|
{
|
|
aTexts = new BSTR[Size()];
|
|
|
|
// Check for allocation failures
|
|
if ( NULL == aTexts )
|
|
{
|
|
throw CX_MemoryException();
|
|
}
|
|
|
|
memset(aTexts, 0, Size() * sizeof(BSTR));
|
|
|
|
int nTotal = 0;
|
|
|
|
for(i = 0; i < Size(); i++)
|
|
{
|
|
CVar v;
|
|
|
|
FillCVarAt( i, v );
|
|
aTexts[i] = v.GetText(lFlags, lType);
|
|
nTotal += COleAuto::_SysStringLen(aTexts[i]) + 2; // 2: for ", "
|
|
}
|
|
|
|
// Allocate a BSTR to contain them all
|
|
// ===================================
|
|
|
|
BSTR strRes = COleAuto::_SysAllocStringLen(NULL, nTotal);
|
|
CSysFreeMe auto2(strRes);
|
|
*strRes = 0;
|
|
|
|
for(i = 0; i < Size(); i++)
|
|
{
|
|
if(i != 0)
|
|
{
|
|
StringCchCatW(strRes, nTotal+1, L", ");
|
|
}
|
|
|
|
StringCchCatW(strRes, nTotal+1, aTexts[i]);
|
|
COleAuto::_SysFreeString(aTexts[i]);
|
|
}
|
|
|
|
delete [] aTexts;
|
|
aTexts = NULL;
|
|
BSTR strPerfectRes = COleAuto::_SysAllocString(strRes);
|
|
return strPerfectRes;
|
|
}
|
|
catch(CX_MemoryException)
|
|
{
|
|
// new, GetText, COleAuto::_SysAllocStringLen and COleAuto::_SysAllocString can all throw exceptions
|
|
if (NULL != aTexts)
|
|
{
|
|
for(int x = 0; x < Size(); x++)
|
|
{
|
|
if (NULL != aTexts[x])
|
|
COleAuto::_SysFreeString(aTexts[x]);
|
|
}
|
|
delete [] aTexts;
|
|
aTexts = NULL;
|
|
}
|
|
|
|
throw;
|
|
}
|
|
}
|
|
|
|
BOOL CVarVector::ToSingleChar()
|
|
{
|
|
// Handle this differently if we are sitting directly on a safearray
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
int nSize = Size();
|
|
|
|
// One element at a time is converted and copied into the new array
|
|
CSafeArray* pNewArray = new CSafeArray( VT_I2, CSafeArray::auto_delete, nSize );
|
|
|
|
for ( int i = 0; i < nSize; i++ )
|
|
{
|
|
CVar v;
|
|
FillCVarAt( i, v );
|
|
|
|
if ( !v.ToSingleChar() )
|
|
{
|
|
delete pNewArray;
|
|
return FALSE;
|
|
}
|
|
|
|
if ( pNewArray->AddShort( v.GetShort() ) != CSafeArray::no_error )
|
|
{
|
|
delete pNewArray;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// Now replace the old pointer
|
|
delete m_pSafeArray;
|
|
m_pSafeArray = pNewArray;
|
|
}
|
|
else
|
|
{
|
|
// One element at a time, convert in place
|
|
for(int i = 0; i < Size(); i++)
|
|
{
|
|
if(!GetAt(i).ToSingleChar())
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// Since all of the conversions succeeded, we will
|
|
// assume the vector type is now VT_I2.
|
|
|
|
m_nType = VT_I2;
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL CVarVector::ToUI4()
|
|
{
|
|
|
|
// Handle this differently if we are sitting directly on a safearray
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
int nSize = Size();
|
|
|
|
// One element at a time is converted and copied into the new array
|
|
CSafeArray* pNewArray = new CSafeArray( VT_I4, CSafeArray::auto_delete, nSize );
|
|
|
|
for ( int i = 0; i < nSize; i++ )
|
|
{
|
|
CVar v;
|
|
FillCVarAt( i, v );
|
|
|
|
if ( !v.ToUI4() )
|
|
{
|
|
delete pNewArray;
|
|
return FALSE;
|
|
}
|
|
|
|
if ( pNewArray->AddLong( v.GetLong() ) != CSafeArray::no_error )
|
|
{
|
|
delete pNewArray;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// Now replace the old pointer
|
|
delete m_pSafeArray;
|
|
m_pSafeArray = pNewArray;
|
|
}
|
|
else
|
|
{
|
|
// One element at a time, convert in place
|
|
for(int i = 0; i < Size(); i++)
|
|
{
|
|
if(!GetAt(i).ToUI4())
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// Since all of the conversions succeeded, we will
|
|
// assume the vector type is now VT_I4.
|
|
|
|
m_nType = VT_I4;
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL CVarVector::IsValidVectorType( int nVarType )
|
|
{
|
|
if ( VT_BOOL == nVarType ||
|
|
VT_UI1 == nVarType ||
|
|
VT_I2 == nVarType ||
|
|
VT_I4 == nVarType ||
|
|
VT_R4 == nVarType ||
|
|
VT_R8 == nVarType ||
|
|
VT_BSTR == nVarType ||
|
|
VT_DISPATCH == nVarType ||
|
|
VT_UNKNOWN == nVarType )
|
|
{
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
BOOL CVarVector::IsValidVectorArray( int nVarType, SAFEARRAY* pArray )
|
|
{
|
|
BOOL fReturn = IsValidVectorType( nVarType );
|
|
|
|
if ( !fReturn )
|
|
{
|
|
|
|
// We do supprt VT_VARIANT if the array is zero length
|
|
if ( VT_VARIANT == nVarType )
|
|
{
|
|
if ( NULL != pArray )
|
|
{
|
|
// If lUBound is 1 less than lLBound, it's a zero length array
|
|
long lLBound = 0,
|
|
lUBound = 0;
|
|
COleAuto::_SafeArrayGetLBound(pArray, 1, &lLBound);
|
|
COleAuto::_SafeArrayGetUBound(pArray, 1, &lUBound);
|
|
|
|
fReturn = ( lUBound == ( lLBound - 1 ) );
|
|
}
|
|
|
|
} // IF VT_VARIANT
|
|
|
|
} // IF Invalid Type
|
|
|
|
return fReturn;
|
|
}
|
|
|
|
int CVarVector::Size()
|
|
{
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
return m_Array.Size();
|
|
}
|
|
else
|
|
{
|
|
return m_pSafeArray->Size();
|
|
}
|
|
}
|
|
|
|
HRESULT CVarVector::AccessRawArray( void** ppv )
|
|
{
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
return m_pSafeArray->Access( ppv );
|
|
}
|
|
|
|
HRESULT CVarVector::UnaccessRawArray( void )
|
|
{
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
if ( NULL != m_pRawData )
|
|
{
|
|
m_pRawData = NULL;
|
|
}
|
|
|
|
return m_pSafeArray->Unaccess();
|
|
}
|
|
|
|
HRESULT CVarVector::InternalRawArrayAccess( void )
|
|
{
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
if ( NULL != m_pRawData )
|
|
{
|
|
return WBEM_E_INVALID_OPERATION;
|
|
}
|
|
|
|
return m_pSafeArray->Access( &m_pRawData );
|
|
}
|
|
|
|
|
|
CVar& CVarVector::GetAt(int nIndex)
|
|
{
|
|
// Not a valid operation if we are sitting on a SAFEARRAY
|
|
_DBG_ASSERT( NULL == m_pSafeArray );
|
|
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
return *(CVar *) m_Array[nIndex];
|
|
}
|
|
else
|
|
{
|
|
throw CX_VarVectorException();
|
|
}
|
|
}
|
|
|
|
CVar& CVarVector::operator [](int nIndex)
|
|
{
|
|
// Not a valid operation if we are sitting on a SAFEARRAY
|
|
_DBG_ASSERT( NULL == m_pSafeArray );
|
|
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
return *(CVar *) m_Array[nIndex];
|
|
}
|
|
else
|
|
{
|
|
throw CX_VarVectorException();
|
|
}
|
|
}
|
|
|
|
void CVarVector::FillCVarAt(int nIndex, CVar& vTemp)
|
|
{
|
|
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
vTemp = *(CVar *) m_Array[nIndex];
|
|
}
|
|
else if ( NULL == m_pRawData )
|
|
{
|
|
switch( m_nType )
|
|
{
|
|
case VT_BOOL:
|
|
vTemp.SetBool( m_pSafeArray->GetBoolAt( nIndex ) );
|
|
break;
|
|
|
|
case VT_UI1:
|
|
vTemp.SetByte( m_pSafeArray->GetByteAt( nIndex ) );
|
|
break;
|
|
|
|
case VT_I2:
|
|
vTemp.SetShort( m_pSafeArray->GetShortAt( nIndex ) );
|
|
break;
|
|
|
|
case VT_I4:
|
|
vTemp.SetLong( m_pSafeArray->GetLongAt( nIndex ) );
|
|
break;
|
|
|
|
case VT_R4:
|
|
vTemp.SetFloat( m_pSafeArray->GetFloatAt( nIndex ) );
|
|
break;
|
|
|
|
case VT_R8:
|
|
vTemp.SetDouble( m_pSafeArray->GetDoubleAt( nIndex ) );
|
|
break;
|
|
|
|
case VT_BSTR:
|
|
vTemp.SetBSTR( auto_bstr(m_pSafeArray->GetBSTRAtThrow( nIndex )));
|
|
break;
|
|
|
|
case VT_UNKNOWN:
|
|
IUnknown* pUnk = m_pSafeArray->GetUnknownAt(nIndex);
|
|
CReleaseMe rm( pUnk );
|
|
|
|
vTemp.SetUnknown( pUnk );
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
// When we pull data in this state, we're using the CVar as a
|
|
// passthrough, so it won't do any allocations or addref()
|
|
// hence it shouldn't do any cleanup either.
|
|
|
|
int nDataLen = 0L;
|
|
void* pvElement = m_pRawData;
|
|
|
|
switch( m_nType )
|
|
{
|
|
case VT_UI1:
|
|
nDataLen = sizeof(BYTE);
|
|
pvElement = (void*) &((BYTE*) m_pRawData)[nIndex];
|
|
break;
|
|
|
|
case VT_BOOL:
|
|
case VT_I2:
|
|
nDataLen = sizeof(short);
|
|
pvElement = (void*) &((short*) m_pRawData)[nIndex];
|
|
break;
|
|
|
|
case VT_I4:
|
|
nDataLen = sizeof(long);
|
|
pvElement = (void*) &((long*) m_pRawData)[nIndex];
|
|
break;
|
|
|
|
case VT_R4:
|
|
nDataLen = sizeof(float);
|
|
pvElement = (void*) &((float*) m_pRawData)[nIndex];
|
|
break;
|
|
|
|
case VT_R8:
|
|
nDataLen = sizeof(double);
|
|
pvElement = (void*) &((double*) m_pRawData)[nIndex];
|
|
break;
|
|
|
|
case VT_BSTR:
|
|
nDataLen = sizeof(BSTR);
|
|
pvElement = (void*) &((BSTR*) m_pRawData)[nIndex];
|
|
|
|
// If the BSTR is a NULL, old code converted to "", so
|
|
// we will point to a pointer to "".
|
|
if ( (*(BSTR*) pvElement ) == NULL )
|
|
{
|
|
pvElement = (void*) &g_pszNullVarString;
|
|
}
|
|
|
|
break;
|
|
|
|
case VT_UNKNOWN:
|
|
nDataLen = sizeof(IUnknown*);
|
|
pvElement = (void*) &((IUnknown**) m_pRawData)[nIndex];
|
|
break;
|
|
|
|
}
|
|
|
|
// Splat the raw value in, and Can Delete is FALSE
|
|
// This is strictly to support optimized pass-through logic
|
|
vTemp.SetRaw( m_nType, pvElement, nDataLen);
|
|
vTemp.SetCanDelete( FALSE );
|
|
}
|
|
|
|
}
|
|
|
|
// This only works if there are no elements in the safe array
|
|
BOOL CVarVector::MakeOptimized( int nVarType, int nInitSize, int nGrowBy )
|
|
{
|
|
BOOL fReturn = FALSE;
|
|
|
|
if ( NULL == m_pSafeArray )
|
|
{
|
|
if ( m_Array.Size() == 0 )
|
|
{
|
|
m_pSafeArray = new CSafeArray( nVarType, CSafeArray::auto_delete, nInitSize, nGrowBy );
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
if ( m_pSafeArray->Status() == CSafeArray::no_error )
|
|
{
|
|
m_nType = nVarType;
|
|
m_nStatus = no_error;
|
|
fReturn = TRUE;
|
|
}
|
|
else
|
|
{
|
|
delete m_pSafeArray;
|
|
m_pSafeArray = NULL;
|
|
m_nStatus = failed;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_nStatus = failed;
|
|
}
|
|
} // IF no elements in array
|
|
|
|
}
|
|
|
|
return fReturn;
|
|
}
|
|
|
|
BOOL CVarVector::DoesVectorTypeMatchArrayType( void )
|
|
{
|
|
// If we have an underlying safe array, sometimes the actualy type of the
|
|
// data in the safe array may be different from the type that was reported
|
|
// to us in VARANTARG. This info is critical in determining how we will
|
|
// go about handling certain operations
|
|
|
|
BOOL fReturn = TRUE;
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
VARTYPE vt;
|
|
|
|
// Only return TRUE if the actual types are equal
|
|
if ( m_pSafeArray->GetActualVarType( &vt ) == no_error )
|
|
{
|
|
fReturn = ( vt == m_nType );
|
|
}
|
|
else
|
|
{
|
|
fReturn = FALSE;
|
|
}
|
|
}
|
|
|
|
return fReturn;
|
|
}
|
|
|
|
void CVarVector::SetRawArrayBinding( int nBinding )
|
|
{
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
m_pSafeArray->SetDestructorPolicy( nBinding );
|
|
}
|
|
}
|
|
|
|
HRESULT CVarVector::SetRawArrayData( void* pvData, int nNumElements, int nElementSize )
|
|
{
|
|
_DBG_ASSERT( NULL != m_pSafeArray );
|
|
|
|
HRESULT hr = WBEM_S_NO_ERROR;
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
if ( m_pSafeArray->SetRawData( pvData, nNumElements, nElementSize ) != CSafeArray::no_error )
|
|
hr = WBEM_E_FAILED;
|
|
}
|
|
else
|
|
{
|
|
hr = WBEM_E_FAILED;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CVarVector::GetRawArrayData( void* pvDest, int nBuffSize )
|
|
{
|
|
_DBG_ASSERT( NULL != m_pSafeArray );
|
|
|
|
HRESULT hr = WBEM_S_NO_ERROR;
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
if ( m_pSafeArray->GetRawData( pvDest, nBuffSize ) != CSafeArray::no_error )
|
|
hr = WBEM_E_FAILED;
|
|
}
|
|
else
|
|
{
|
|
hr = WBEM_E_FAILED;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
BOOL CVarVector::SetRawArraySize( int nSize )
|
|
{
|
|
_DBG_ASSERT( NULL != m_pSafeArray );
|
|
|
|
BOOL fReturn = FALSE;
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
m_pSafeArray->SetRawArrayMaxElement( nSize - 1 );
|
|
fReturn = TRUE;
|
|
}
|
|
|
|
return fReturn;
|
|
}
|
|
|
|
int CVarVector::GetElementSize( void )
|
|
{
|
|
_DBG_ASSERT( NULL != m_pSafeArray );
|
|
|
|
int nReturn = 0L;
|
|
|
|
if ( NULL != m_pSafeArray )
|
|
{
|
|
nReturn = m_pSafeArray->ElementSize();
|
|
}
|
|
|
|
return nReturn;
|
|
}
|