Source code of Windows XP (NT5)
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#include "stdafx.h"
#if !defined(BITS_V12_ON_NT4)
#include "cunknown.tmh"
#endif
template<class T>
CSimpleExternalIUnknown<T>::CSimpleExternalIUnknown() :
m_ServiceInstance( g_ServiceInstance ),
m_refs(1) // always start with one ref count!
{
GlobalLockServer( TRUE );
}
template<class T>
CSimpleExternalIUnknown<T>::~CSimpleExternalIUnknown()
{
GlobalLockServer( FALSE );
}
template<class T>
STDMETHODIMP
CSimpleExternalIUnknown<T>::QueryInterface(
REFIID iid,
void** ppvObject
)
{
BEGIN_EXTERNAL_FUNC
HRESULT Hr = S_OK;
*ppvObject = NULL;
if ((iid == IID_IUnknown) || (iid == _uuidof(T)))
{
*ppvObject = static_cast<T *> (this);
(static_cast<IUnknown *>(*ppvObject))->AddRef();
}
else
{
Hr = E_NOINTERFACE;
}
LogRef( "IUnknown %p QueryInterface: iid %!guid!, Hr %x", this, &iid, Hr );
return Hr;
END_EXTERNAL_FUNC
}
template<class T>
ULONG
CSimpleExternalIUnknown<T>::AddRef()
{
BEGIN_EXTERNAL_FUNC
ASSERT( m_refs != 0 );
ULONG newrefs = InterlockedIncrement(&m_refs);
LogRef( "IUnknown %p addref: new refs = %d", this, newrefs );
return newrefs;
END_EXTERNAL_FUNC
}
template<class T>
ULONG
CSimpleExternalIUnknown<T>::Release()
{
BEGIN_EXTERNAL_FUNC;
ULONG newrefs = InterlockedDecrement(&m_refs);
LogRef( "IUnknown %p release: new refs = %d", this, newrefs );
if (newrefs == 0)
{
LogInfo( "Deleting object due to ref count hitting 0" );
delete this;
return 0;
}
return m_refs;
END_EXTERNAL_FUNC
}
// Work around problem in logging where functions in headers can't have logging
template CSimpleExternalIUnknown<IBackgroundCopyError>;
template CSimpleExternalIUnknown<IEnumBackgroundCopyFiles>;
template CSimpleExternalIUnknown<IEnumBackgroundCopyGroups>;
template CSimpleExternalIUnknown<IEnumBackgroundCopyJobs>;
template CSimpleExternalIUnknown<IEnumBackgroundCopyJobs1>;
template CSimpleExternalIUnknown<ISensLogon>;