77 lines
2 KiB
C++
77 lines
2 KiB
C++
|
// Persist.cpp : Implementation of persistence
|
||
|
|
|
||
|
|
#include "stdafx.h"
|
||
|
|
#include "compdata.h"
|
||
|
|
#include "safetemp.h"
|
||
|
|
|
||
|
|
#include "macros.h"
|
||
|
|
USE_HANDLE_MACROS("SCHMMGMT(persist.cpp)")
|
||
|
|
|
||
|
|
STDMETHODIMP ComponentData::Load(IStream __RPC_FAR *pIStream)
|
||
|
|
{
|
||
|
|
MFC_TRY;
|
||
|
|
|
||
|
|
#ifndef DONT_PERSIST
|
||
|
|
ASSERT( NULL != pIStream );
|
||
|
|
XSafeInterfacePtr<IStream> pIStreamSafePtr( pIStream );
|
||
|
|
|
||
|
|
// read server name from stream
|
||
|
|
DWORD dwLen = 0;
|
||
|
|
HRESULT hr = pIStream->Read( &dwLen, 4, NULL );
|
||
|
|
if ( FAILED(hr) )
|
||
|
|
{
|
||
|
|
ASSERT( FALSE );
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
ASSERT( dwLen <= MAX_PATH*sizeof(WCHAR) );
|
||
|
|
LPCWSTR lpwcszMachineName = (LPCWSTR)alloca( dwLen );
|
||
|
|
// allocated from stack, we don't need to free
|
||
|
|
if (NULL == lpwcszMachineName)
|
||
|
|
{
|
||
|
|
AfxThrowMemoryException();
|
||
|
|
return E_OUTOFMEMORY;
|
||
|
|
}
|
||
|
|
hr = pIStream->Read( (PVOID)lpwcszMachineName, dwLen, NULL );
|
||
|
|
if ( FAILED(hr) )
|
||
|
|
{
|
||
|
|
ASSERT( FALSE );
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
QueryRootCookie().SetMachineName( lpwcszMachineName );
|
||
|
|
|
||
|
|
#endif
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
MFC_CATCH;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP ComponentData::Save(IStream __RPC_FAR *pIStream, BOOL)
|
||
|
|
{
|
||
|
|
MFC_TRY;
|
||
|
|
|
||
|
|
#ifndef DONT_PERSIST
|
||
|
|
ASSERT( NULL != pIStream );
|
||
|
|
XSafeInterfacePtr<IStream> pIStreamSafePtr( pIStream );
|
||
|
|
|
||
|
|
LPCWSTR lpwcszMachineName = QueryRootCookie().QueryNonNULLMachineName();
|
||
|
|
|
||
|
|
DWORD dwLen = static_cast<DWORD>((::wcslen(lpwcszMachineName)+1)*sizeof(WCHAR));
|
||
|
|
ASSERT( 4 == sizeof(DWORD) );
|
||
|
|
HRESULT hr = pIStream->Write( &dwLen, 4, NULL );
|
||
|
|
if ( FAILED(hr) )
|
||
|
|
{
|
||
|
|
ASSERT( FALSE );
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
hr = pIStream->Write( lpwcszMachineName, dwLen, NULL );
|
||
|
|
if ( FAILED(hr) )
|
||
|
|
{
|
||
|
|
ASSERT( FALSE );
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
MFC_CATCH;
|
||
|
|
}
|