1 files changed, 123 insertions, 0 deletions

diff --git a/CryptoPP/channels.h b/CryptoPP/channels.h
new file mode 100644
index 000000000..837415615
--- /dev/null
+++ b/CryptoPP/channels.h
@@ -0,0 +1,123 @@
+#ifndef CRYPTOPP_CHANNELS_H
+#define CRYPTOPP_CHANNELS_H
+
+#include "simple.h"
+#include "smartptr.h"
+#include <map>
+#include <list>
+
+NAMESPACE_BEGIN(CryptoPP)
+
+#if 0
+//! Route input on default channel to different and/or multiple channels based on message sequence number
+class MessageSwitch : public Sink
+{
+public:
+	void AddDefaultRoute(BufferedTransformation &destination, const std::string &channel);
+	void AddRoute(unsigned int begin, unsigned int end, BufferedTransformation &destination, const std::string &channel);
+
+	void Put(byte inByte);
+	void Put(const byte *inString, unsigned int length);
+
+	void Flush(bool completeFlush, int propagation=-1);
+	void MessageEnd(int propagation=-1);
+	void PutMessageEnd(const byte *inString, unsigned int length, int propagation=-1);
+	void MessageSeriesEnd(int propagation=-1);
+
+private:
+	typedef std::pair<BufferedTransformation *, std::string> Route;
+	struct RangeRoute
+	{
+		RangeRoute(unsigned int begin, unsigned int end, const Route &route)
+			: begin(begin), end(end), route(route) {}
+		bool operator<(const RangeRoute &rhs) const {return begin < rhs.begin;}
+		unsigned int begin, end;
+		Route route;
+	};
+
+	typedef std::list<RangeRoute> RouteList;
+	typedef std::list<Route> DefaultRouteList;
+
+	RouteList m_routes;
+	DefaultRouteList m_defaultRoutes;
+	unsigned int m_nCurrentMessage;
+};
+#endif
+
+class ChannelSwitchTypedefs
+{
+public:
+	typedef std::pair<BufferedTransformation *, std::string> Route;
+	typedef std::multimap<std::string, Route> RouteMap;
+
+	typedef std::pair<BufferedTransformation *, value_ptr<std::string> > DefaultRoute;
+	typedef std::list<DefaultRoute> DefaultRouteList;
+
+	// SunCC workaround: can't use const_iterator here
+	typedef RouteMap::iterator MapIterator;
+	typedef DefaultRouteList::iterator ListIterator;
+};
+
+class ChannelSwitch;
+
+class ChannelRouteIterator : public ChannelSwitchTypedefs
+{
+public:
+	ChannelSwitch& m_cs;
+	std::string m_channel;
+	bool m_useDefault;
+	MapIterator m_itMapCurrent, m_itMapEnd;
+	ListIterator m_itListCurrent, m_itListEnd;
+
+	ChannelRouteIterator(ChannelSwitch &cs) : m_cs(cs) {}
+	void Reset(const std::string &channel);
+	bool End() const;
+	void Next();
+	BufferedTransformation & Destination();
+	const std::string & Channel();
+};
+
+//! Route input to different and/or multiple channels based on channel ID
+class CRYPTOPP_DLL ChannelSwitch : public Multichannel<Sink>, public ChannelSwitchTypedefs
+{
+public:
+	ChannelSwitch() : m_it(*this), m_blocked(false) {}
+	ChannelSwitch(BufferedTransformation &destination) : m_it(*this), m_blocked(false)
+	{
+		AddDefaultRoute(destination);
+	}
+	ChannelSwitch(BufferedTransformation &destination, const std::string &outChannel) : m_it(*this), m_blocked(false)
+	{
+		AddDefaultRoute(destination, outChannel);
+	}
+
+	void IsolatedInitialize(const NameValuePairs &parameters=g_nullNameValuePairs);
+
+	size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking);
+	size_t ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking);
+
+	bool ChannelFlush(const std::string &channel, bool completeFlush, int propagation=-1, bool blocking=true);
+	bool ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1, bool blocking=true);
+
+	byte * ChannelCreatePutSpace(const std::string &channel, size_t &size);
+	
+	void AddDefaultRoute(BufferedTransformation &destination);
+	void RemoveDefaultRoute(BufferedTransformation &destination);
+	void AddDefaultRoute(BufferedTransformation &destination, const std::string &outChannel);
+	void RemoveDefaultRoute(BufferedTransformation &destination, const std::string &outChannel);
+	void AddRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel);
+	void RemoveRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel);
+
+private:
+	RouteMap m_routeMap;
+	DefaultRouteList m_defaultRoutes;
+
+	ChannelRouteIterator m_it;
+	bool m_blocked;
+
+	friend class ChannelRouteIterator;
+};
+
+NAMESPACE_END
+
+#endif