Initial publish

1 files changed, 105 insertions, 0 deletions

diff --git a/wpd/WpdWudfSampleDriver/WpdObjectEnum.h b/wpd/WpdWudfSampleDriver/WpdObjectEnum.h
new file mode 100644
index 00000000..a7cc4c02
--- /dev/null
+++ b/wpd/WpdWudfSampleDriver/WpdObjectEnum.h
@@ -0,0 +1,105 @@
+#pragma once
+
+// This class is used to store the context for a specific enumeration.
+// Currrently, this is done by storing the object index.
+class EnumContext : public IUnknown
+{
+public:
+    EnumContext() :
+        m_cRef(1),
+        SearchIndex(0)
+    {
+
+    }
+
+    ~EnumContext()
+    {
+
+    }
+
+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:
+    DWORD       SearchIndex;
+    CAtlStringW ParentID;
+private:
+    DWORD       m_cRef;
+};
+
+class WpdObjectEnumerator
+{
+public:
+    WpdObjectEnumerator();
+    ~WpdObjectEnumerator();
+
+    HRESULT Initialize(_In_ FakeDevice *pFakeDevice);
+
+    HRESULT DispatchWpdMessage(_In_ REFPROPERTYKEY          Command,
+                               _In_ IPortableDeviceValues*  pParams,
+                               _In_ IPortableDeviceValues*  pResults);
+
+    HRESULT OnStartFind(_In_ IPortableDeviceValues*  pParams,
+                        _In_ IPortableDeviceValues*  pResults);
+
+    HRESULT OnFindNext(_In_ IPortableDeviceValues*  pParams,
+                       _In_ IPortableDeviceValues*  pResults);
+
+    HRESULT OnEndFind(_In_ IPortableDeviceValues*  pParams,
+                      _In_ IPortableDeviceValues*  pResults);
+
+private:
+    HRESULT CreateEnumContext(
+        _In_         ContextMap*         pContextMap,
+        _In_         LPCWSTR             pszParentID,
+        _Outptr_result_nullonfailure_   LPWSTR* ppszEnumContext);
+
+    HRESULT DestroyEnumContext(
+        _In_         ContextMap*         pContextMap,
+        _In_         LPCWSTR             pszEnumContext);
+
+    HRESULT GetObjectIDs(
+        _In_         ContextMap*         pContextMap,
+        _In_         const DWORD         dwNumObjects,
+        _In_         LPCWSTR             pszEnumContext,
+        _COM_Outptr_ IPortableDevicePropVariantCollection**  ppCollection);
+
+    FakeDevice* m_pFakeDevice;
+};