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#pragma once
class CMethodTask;
// This class is used to store the context for a specific method invocation
class ServiceMethodContext : public IUnknown
{
public:
ServiceMethodContext();
~ServiceMethodContext();
HRESULT Initialize(
_In_ WpdServiceMethods* pServiceMethods,
_In_ IPortableDeviceValues* pStartParams,
_In_ LPCWSTR pwszContext);
VOID InvokeMethod();
public: // IUnknown
ULONG __stdcall AddRef()
{
InterlockedIncrement((long*) &m_cRef);
return m_cRef;
}
_At_(this, __drv_freesMem(Mem))
ULONG __stdcall Release()
{
ULONG ulRefCount = m_cRef - 1;
if (InterlockedDecrement((long*) &m_cRef) == 0)
{
delete this;
return 0;
}
return ulRefCount;
}
HRESULT __stdcall QueryInterface(
REFIID riid,
void** ppv)
{
HRESULT hr = S_OK;
if(riid == IID_IUnknown)
{
*ppv = static_cast<IUnknown*>(this);
AddRef();
}
else
{
*ppv = NULL;
hr = E_NOINTERFACE;
}
return hr;
}
public:
HRESULT m_hrStatus;
CComPtr<IPortableDeviceValues> m_pResults;
private:
DWORD m_cRef;
CAtlStringW m_strContext;
CMethodTask* m_pTask;
CComPtr<IPortableDeviceValues> m_pStartParameters;
WpdServiceMethods* m_pServiceMethods;
};
class CMethodTask
{
public:
CMethodTask(_In_ ServiceMethodContext* pContext);
~CMethodTask();
HRESULT Run();
static DWORD ThreadProc(LPVOID pData)
{
// Initialize COM
if (SUCCEEDED(CoInitializeEx(NULL, COINIT_MULTITHREADED)))
{
ServiceMethodContext* pContext = (ServiceMethodContext*) pData;
if (pContext != NULL)
{
pContext->AddRef();
pContext->InvokeMethod();
pContext->Release();
}
// Uninitialize COM
CoUninitialize();
}
return 0;
}
private:
HANDLE m_hThread;
ServiceMethodContext* m_pContext;
};
class WpdServiceMethods
{
public:
WpdServiceMethods();
virtual ~WpdServiceMethods();
HRESULT Initialize(
_In_ FakeContactsService* pContactsService);
// Handler for WPD_COMMAND_SERVICE_METHODS_START_INVOKE
HRESULT OnStartInvoke(
_In_ IPortableDeviceValues* pParams,
_In_ IPortableDeviceValues* pResults);
// Handler for WPD_COMMAND_SERVICE_METHODS_END_INVOKE
HRESULT OnEndInvoke(
_In_ IPortableDeviceValues* pParams,
_In_ IPortableDeviceValues* pResults);
// Handler for WPD_COMMAND_SERVICE_METHODS_CANCEL_INVOKE
HRESULT OnCancelInvoke(
_In_ IPortableDeviceValues* pParams,
_In_ IPortableDeviceValues* pResults);
HRESULT DispatchMethod(
_In_ LPCWSTR pwszContext,
_In_ IPortableDeviceValues* pStartParams,
_COM_Outptr_ IPortableDeviceValues** ppResults);
private:
HRESULT StartMethod(
_In_ IPortableDeviceValues* pCommandParams,
_Outptr_result_nullonfailure_ LPWSTR* ppwszMethodContext);
HRESULT EndMethod(
_In_ ContextMap* pContextMap,
_In_ LPCWSTR pwszMethodContext,
_COM_Outptr_result_maybenull_ IPortableDeviceValues** ppResults,
_Out_ HRESULT* phrStatus);
HRESULT CancelMethod(
_In_ ContextMap* pContextMap,
_In_ LPCWSTR pwszMethodContext);
private:
FakeContactsService* m_pContactsService;
};
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