deprecate and remove remote_dl_rate feature (#1051)

deprecate and remove remote_dl_rate feature

ChangeLog

@@ -1,3 +1,4 @@
+	* remove remote_dl_rate feature
 	* source code migration from boost::shared_ptr to std::shared_ptr
 	* storage_interface API changed to use span and references
 	* changes in public API to work with std::shared_ptr<torrent_info>

bindings/python/src/peer_info.cpp

@@ -67,6 +67,7 @@ void bind_peer_info()
         .def_readonly("upload_limit", &peer_info::upload_limit)
         .def_readonly("download_limit", &peer_info::download_limit)
         .def_readonly("load_balancing", &peer_info::load_balancing)
+        .def_readonly("remote_dl_rate", &peer_info::remote_dl_rate)
 #endif
         .add_property("last_request", get_last_request)
         .add_property("last_active", get_last_active)
@@ -87,7 +88,6 @@ void bind_peer_info()
         .def_readonly("downloading_total", &peer_info::downloading_total)
         .def_readonly("client", &peer_info::client)
         .def_readonly("connection_type", &peer_info::connection_type)
-        .def_readonly("remote_dl_rate", &peer_info::remote_dl_rate)
         .def_readonly("pending_disk_bytes", &peer_info::pending_disk_bytes)
         .def_readonly("send_quota", &peer_info::send_quota)
         .def_readonly("receive_quota", &peer_info::receive_quota)

examples/client_test.cpp

@@ -395,7 +395,7 @@ int print_peer_info(std::string& out
 	if (print_timers) out += "inactive wait timeout q-time ";
 	out += "  v disk ^    rtt  ";
 	if (print_block) out += "block-progress ";
-	if (print_peer_rate) out += "peer-rate est.rec.rate ";
+	if (print_peer_rate) out += "est.rec.rate ";
 	out += "client \x1b[K\n";
 	++pos;
 
@@ -521,8 +521,7 @@ int print_peer_info(std::string& out
 		{
 			bool unchoked = (i->flags & peer_info::choked) == 0;
 
-			std::snprintf(str, sizeof(str), " %s %s"
+			std::snprintf(str, sizeof(str), " %s"
-				, add_suffix(i->remote_dl_rate, "/s").c_str()
 				, unchoked ? add_suffix(i->estimated_reciprocation_rate, "/s").c_str() : "      ");
 			out += str;
 		}

include/libtorrent/peer_connection.hpp

@@ -923,10 +923,6 @@ namespace libtorrent
 		// http://blog.libtorrent.org/2011/11/block-request-time-outs/
 		time_point m_requested = aux::time_now();
 
-		// a timestamp when the remote download rate
-		// was last updated
-		time_point m_remote_dl_update = aux::time_now();
-
 		// the time when async_connect was called
 		// or when the incoming connection was established
 		time_point m_connect = aux::time_now();
@@ -1066,14 +1062,6 @@ namespace libtorrent
 		// another peer sends us a have message for this piece
 		int m_superseed_piece[2] = {-1, -1};
 
-		// pieces downloaded since last second
-		// timer timeout; used for determining
-		// approx download rate
-		int m_remote_pieces_dled = 0;
-
-		// approximate peer download rate
-		int m_remote_dl_rate = 0;
-
 		// the number of bytes send to the disk-io
 		// thread that hasn't yet been completely written.
 		int m_outstanding_writing_bytes = 0;

include/libtorrent/peer_info.hpp

@@ -312,9 +312,13 @@ namespace libtorrent
 		// the kind of connection this peer uses. See connection_type_t.
 		int connection_type;
 
+#ifndef TORRENT_NO_DEPRECATE
 		// an estimate of the rate this peer is downloading at, in
 		// bytes per second.
 		int remote_dl_rate;
+#else
+		int deprecated_remote_dl_rate;
+#endif
 
 		// the number of bytes this peer has pending in the disk-io thread.
 		// Downloaded and waiting to be written to disk. This is what is capped

src/peer_connection.cpp

@@ -1808,17 +1808,6 @@ namespace libtorrent
 
 		t->peer_has(index, this);
 
-		// this will disregard all have messages we get within
-		// the first two seconds. Since some clients implements
-		// lazy bitfields, these will not be reliable to use
-		// for an estimated peer download rate.
-		if (!peer_info_struct()
-			|| m_ses.session_time() - peer_info_struct()->last_connected > 2)
-		{
-			// update bytes downloaded since last timer
-			++m_remote_pieces_dled;
-		}
-
 		// it's important to not disconnect before we have
 		// updated the piece picker, otherwise we will incorrectly
 		// decrement the piece count without first incrementing it
@@ -4381,7 +4370,9 @@ namespace libtorrent
 			p.num_hashfails = 0;
 		}
 
-		p.remote_dl_rate = m_remote_dl_rate;
+#ifndef TORRENT_NO_DEPRECATE
+		p.remote_dl_rate = 0;
+#endif
 		p.send_buffer_size = m_send_buffer.capacity();
 		p.used_send_buffer = m_send_buffer.size();
 		p.receive_buffer_size = m_recv_buffer.capacity();
@@ -4813,22 +4804,6 @@ namespace libtorrent
 			snub_peer();
 		}
 
-		// update once every minute
-		if (now - m_remote_dl_update >= seconds(60))
-		{
-			std::int64_t piece_size = t->torrent_file().piece_length();
-
-			if (m_remote_dl_rate > 0)
-				m_remote_dl_rate = int((m_remote_dl_rate * 2 / 3)
-					+ ((std::int64_t(m_remote_pieces_dled) * piece_size / 3) / 60));
-			else
-				m_remote_dl_rate = int(std::int64_t(m_remote_pieces_dled)
-					* piece_size / 60);
-
-			m_remote_pieces_dled = 0;
-			m_remote_dl_update = now;
-		}
-
 		fill_send_buffer();
 	}