exception fixes

src/session_impl.cpp

@@ -949,7 +949,18 @@ namespace libtorrent { namespace detail
 				continue;
 			}
 
-			c.keep_alive();
+			try
+			{
+				c.keep_alive();
+			}
+			catch (std::exception& exc)
+			{
+#ifdef TORRENT_VERBOSE_LOGGING
+				(*c.m_logger) << "**ERROR**: " << exc.what() << "\n";
+#endif
+				c.set_failed();
+				c.disconnect();
+			}
 		}
 
 		// check each torrent for tracker updates
@@ -981,7 +992,6 @@ namespace libtorrent { namespace detail
 		}
 
 		m_stat.second_tick(tick_interval);
-
 		// distribute the maximum upload rate among the torrents
 
 		assert(m_max_uploads >= -1);

src/torrent.cpp

@@ -2454,13 +2454,25 @@ namespace libtorrent
 		}
 		
 		for (peer_iterator i = m_connections.begin();
-			i != m_connections.end(); ++i)
+			i != m_connections.end();)
 		{
 			peer_connection* p = i->second;
+			++i;
 			m_stat += p->statistics();
 			// updates the peer connection's ul/dl bandwidth
 			// resource requests
-			p->second_tick(tick_interval);
+			try
+			{
+				p->second_tick(tick_interval);
+			}
+			catch (std::exception& e)
+			{
+#ifdef TORRENT_VERBOSE_LOGGING
+				(*p->m_logger) << "**ERROR**: " << e.what() << "\n";
+#endif
+				p->set_failed();
+				p->disconnect();
+			}
 		}
 		accumulator += m_stat;
 		m_stat.second_tick(tick_interval);