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+//
+// SocketNotification.h
+//
+// Library: Net
+// Package: Reactor
+// Module:  SocketNotification
+//
+// Definition of the SocketNotification class.
+//
+// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Net_SocketNotification_INCLUDED
+#define Net_SocketNotification_INCLUDED
+
+
+#include "Poco/Net/Net.h"
+#include "Poco/Net/Socket.h"
+#include "Poco/Notification.h"
+
+
+namespace Poco {
+namespace Net {
+
+
+class SocketReactor;
+
+
+class Net_API SocketNotification: public Poco::Notification
+	/// The base class for all notifications generated by
+	/// the SocketReactor.
+{
+public:
+	explicit SocketNotification(SocketReactor* pReactor);
+		/// Creates the SocketNotification for the given SocketReactor.
+
+	virtual ~SocketNotification();
+		/// Destroys the SocketNotification.
+		
+	SocketReactor& source() const;
+		/// Returns the SocketReactor that generated the notification.	
+		
+	Socket socket() const;
+		/// Returns the socket that caused the notification.
+
+private:
+	void setSocket(const Socket& socket);
+	
+	SocketReactor* _pReactor;
+	Socket         _socket;
+	
+	friend class SocketNotifier;
+};
+
+
+class Net_API ReadableNotification: public SocketNotification
+	/// This notification is sent if a socket has become readable.
+{
+public:
+	ReadableNotification(SocketReactor* pReactor);
+		/// Creates the ReadableNotification for the given SocketReactor.
+
+	~ReadableNotification();
+		/// Destroys the ReadableNotification.
+};
+
+
+class Net_API WritableNotification: public SocketNotification
+	/// This notification is sent if a socket has become writable.
+{
+public:
+	WritableNotification(SocketReactor* pReactor);
+		/// Creates the WritableNotification for the given SocketReactor.
+
+	~WritableNotification();
+		/// Destroys the WritableNotification.
+};
+
+
+class Net_API ErrorNotification: public SocketNotification
+	/// This notification is sent if a socket has signalled an error.
+{
+public:
+	ErrorNotification(SocketReactor* pReactor);
+		/// Creates the ErrorNotification for the given SocketReactor.
+
+	~ErrorNotification();
+		/// Destroys the ErrorNotification.
+};
+
+
+class Net_API TimeoutNotification: public SocketNotification
+	/// This notification is sent if no other event has occurred
+	/// for a specified time.
+{
+public:
+	TimeoutNotification(SocketReactor* pReactor);
+		/// Creates the TimeoutNotification for the given SocketReactor.
+
+	~TimeoutNotification();
+		/// Destroys the TimeoutNotification.
+};
+
+
+class Net_API IdleNotification: public SocketNotification
+	/// This notification is sent when the SocketReactor does
+	/// not have any sockets to react to.
+{
+public:
+	IdleNotification(SocketReactor* pReactor);
+		/// Creates the IdleNotification for the given SocketReactor.
+
+	~IdleNotification();
+		/// Destroys the IdleNotification.
+};
+
+
+class Net_API ShutdownNotification: public SocketNotification
+	/// This notification is sent when the SocketReactor is
+	/// about to shut down.
+{
+public:
+	ShutdownNotification(SocketReactor* pReactor);
+		/// Creates the ShutdownNotification for the given SocketReactor.
+
+	~ShutdownNotification();
+		/// Destroys the ShutdownNotification.
+};
+
+
+//
+// inlines
+//
+inline SocketReactor& SocketNotification::source() const
+{
+	return *_pReactor;
+}
+
+	
+inline Socket SocketNotification::socket() const
+{
+	return _socket;
+}
+
+
+} } // namespace Poco::Net
+
+
+#endif // Net_SocketNotification_INCLUDED