cleaned up policy. Moved logic from policy to torrent

include/libtorrent/aux_/session_impl.hpp

@@ -252,6 +252,7 @@ namespace libtorrent
 			{ return m_connections.size(); }
 
 			void unchoke_peer(peer_connection& c);
+			void choke_peer(peer_connection& c);
 
 			session_status status() const;
 			void set_peer_id(peer_id const& id);

include/libtorrent/peer_connection.hpp

@@ -415,7 +415,7 @@ namespace libtorrent
 
 		// the following functions appends messages
 		// to the send buffer
-		void send_choke();
+		bool send_choke();
 		bool send_unchoke();
 		void send_interested();
 		void send_not_interested();

include/libtorrent/policy.hpp

@@ -93,15 +93,6 @@ namespace libtorrent
 		// the peer has got at least one interesting piece
 		void peer_is_interesting(peer_connection& c);
 
-		// the peer unchoked us
-		void unchoked(peer_connection& c);
-
-		// the peer is interested in our pieces
-		void interested(peer_connection& c);
-
-		// the peer is not interested in our pieces
-		void not_interested(peer_connection& c);
-
 		void ip_filter_updated();
 
 		void set_seed(policy::peer* p, bool s);
@@ -355,10 +346,6 @@ namespace libtorrent
 
 		torrent* m_torrent;
 
-		// free download we have got that hasn't
-		// been distributed yet.
-		size_type m_available_free_upload;
-
 		// The number of peers in our peer list
 		// that are connect candidates. i.e. they're
 		// not already connected and they have not

include/libtorrent/torrent.hpp

@@ -321,7 +321,7 @@ namespace libtorrent
 		bool free_upload_slots() const
 		{ return m_num_uploads < m_max_uploads; }
 
-		void choke_peer(peer_connection& c);
+		bool choke_peer(peer_connection& c);
 		bool unchoke_peer(peer_connection& c);
 
 		// used by peer_connection to attach itself to a torrent
@@ -621,6 +621,8 @@ namespace libtorrent
 // --------------------------------------------
 		// RESOURCE MANAGEMENT
 
+		void add_free_upload(int diff) { m_available_free_upload += diff; }
+
 		void set_peer_upload_limit(tcp::endpoint ip, int limit);
 		void set_peer_download_limit(tcp::endpoint ip, int limit);
 
@@ -909,6 +911,10 @@ namespace libtorrent
 		// m_num_verified = m_verified.count()
 		int m_num_verified;
 
+		// free download we have got that hasn't
+		// been distributed yet.
+		size_type m_available_free_upload;
+
 		// determines the storage state for this torrent.
 		storage_mode_t m_storage_mode;