Initial community commit

Src/Plugins/Portable/pmp_p4s/deviceprovider.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <wtypes.h>
+#include "../devices/ifc_deviceprovider.h"
+#include "..\..\Library\ml_pmp/pmp.h"
+
+class DeviceProvider : public ifc_deviceprovider
+{
+protected:
+	DeviceProvider();
+	~DeviceProvider();
+
+public:
+	static HRESULT CreateInstance(DeviceProvider **instance);
+
+public:
+	/* Dispatchable */
+	size_t AddRef();
+	size_t Release();
+	int QueryInterface(GUID interface_guid, void **object);
+
+	/* ifc_deviceprovider */
+	HRESULT BeginDiscovery(api_devicemanager *manager);
+	HRESULT CancelDiscovery();
+	HRESULT GetActive();
+
+public:
+	HRESULT Register(api_devicemanager *manager);
+	HRESULT Unregister();
+	size_t IncrementActivity();
+	size_t DecrementActivity();
+
+private:
+	void Lock();
+	void Unlock();
+	DWORD DiscoveryThread();
+	friend static int DeviceProvider_DiscoveryThreadStarter(HANDLE handle, void *user_data, intptr_t id);
+
+protected:
+	size_t ref;
+	size_t activity;
+	CRITICAL_SECTION lock;
+	api_devicemanager *manager;
+	HANDLE readyEvent;
+	BOOL cancelDiscovery;
+
+protected:
+	RECVS_DISPATCH;
+};