1 files changed, 60 insertions, 0 deletions
diff --git a/Src/nu/ServiceWatcher.h b/Src/nu/ServiceWatcher.h
new file mode 100644
index 00000000..7eb4d3da
--- /dev/null
+++ b/Src/nu/ServiceWatcher.h
@@ -0,0 +1,60 @@
+#pragma once
+#include <api/service/api_service.h>
+#include <api/syscb/callbacks/svccb.h>
+#include <map>
+#include <api/syscb/api_syscb.h>
+
+class ServiceWatcher : public SysCallback
+{
+public:
+	ServiceWatcher() : serviceManager(0),systemCallbacks(0) {}
+	~ServiceWatcher();
+
+	void WatchWith(api_service *_serviceApi);
+	
+	template <class T>
+	void WatchFor(T **ptr, GUID watchGUID)
+	{
+		WatchForT((void **)ptr, watchGUID);
+	}
+	void StopWatching();
+	void Clear();
+private:
+	void WatchForT(void **ptr, GUID watchGUID);
+	typedef std::map<GUID, void **> WatchList;
+	WatchList watchList;
+  FOURCC GetEventType() { return SysCallback::SERVICE; }
+  int Notify(int msg, intptr_t param1, intptr_t param2);
+	api_service *serviceManager;
+	api_syscb *systemCallbacks;
+protected:
+	RECVS_DISPATCH;
+};
+
+class ServiceWatcherSingle : public SysCallback
+{
+public:
+	ServiceWatcherSingle() : serviceManager(0),systemCallbacks(0),service(0) {}
+	virtual ~ServiceWatcherSingle();
+	void WatchWith(api_service *_serviceApi);
+	
+	template <class T>
+	void WatchFor(T **ptr, GUID watchGUID)
+	{
+		WatchForT((void **)ptr, watchGUID);
+	}
+
+	virtual void OnRegister() {}
+	virtual void OnDeregister()=0;
+	void StopWatching();
+private:
+	void WatchForT(void **ptr, GUID watchGUID);
+	FOURCC GetEventType() { return SysCallback::SERVICE; }
+	int Notify(int msg, intptr_t param1, intptr_t param2);
+	api_service *serviceManager;
+	api_syscb *systemCallbacks;
+	void **service;
+	GUID serviceGUID;
+protected:
+	RECVS_DISPATCH;
+};
+\ No newline at end of file