From 07c4276cbebe453f552dd107a72d7231579dea57 Mon Sep 17 00:00:00 2001 From: Howard Chu Date: Sun, 4 Jun 2017 22:37:53 +0100 Subject: [PATCH] Don't issue a new timedsync while one is already in progress A timedsync is issued every minute on a connection, but the input tineout is 2 minutes. This means a new sync request could be issued while a slow sync request was already in progress. The additional request will further clog the network on a slow connection, and cause a premature timeout. --- contrib/epee/include/net/net_utils_base.h | 3 +++ src/p2p/net_node.inl | 8 ++++++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/contrib/epee/include/net/net_utils_base.h b/contrib/epee/include/net/net_utils_base.h index 4334029f7..fd7e28849 100644 --- a/contrib/epee/include/net/net_utils_base.h +++ b/contrib/epee/include/net/net_utils_base.h @@ -56,6 +56,7 @@ namespace net_utils const uint32_t m_remote_port; const bool m_is_income; const time_t m_started; + bool m_in_timedsync; time_t m_last_recv; time_t m_last_send; uint64_t m_recv_cnt; @@ -72,6 +73,7 @@ namespace net_utils m_remote_port(remote_port), m_is_income(is_income), m_started(time(NULL)), + m_in_timedsync(false), m_last_recv(last_recv), m_last_send(last_send), m_recv_cnt(recv_cnt), @@ -85,6 +87,7 @@ namespace net_utils m_remote_port(0), m_is_income(false), m_started(time(NULL)), + m_in_timedsync(false), m_last_recv(0), m_last_send(0), m_recv_cnt(0), diff --git a/src/p2p/net_node.inl b/src/p2p/net_node.inl index 5c903b1f5..0d0d86e14 100644 --- a/src/p2p/net_node.inl +++ b/src/p2p/net_node.inl @@ -814,6 +814,7 @@ namespace nodetool bool r = epee::net_utils::async_invoke_remote_command2(context_.m_connection_id, COMMAND_TIMED_SYNC::ID, arg, m_net_server.get_config_object(), [this](int code, const typename COMMAND_TIMED_SYNC::response& rsp, p2p_connection_context& context) { + context.m_in_timedsync = false; if(code < 0) { LOG_ERROR_CC(context, "COMMAND_TIMED_SYNC invoke failed. (" << code << ", " << epee::levin::get_err_descr(code) << ")"); @@ -1300,10 +1301,13 @@ namespace nodetool MDEBUG("STARTED PEERLIST IDLE HANDSHAKE"); typedef std::list > local_connects_type; local_connects_type cncts; - m_net_server.get_config_object().foreach_connection([&](const p2p_connection_context& cntxt) + m_net_server.get_config_object().foreach_connection([&](p2p_connection_context& cntxt) { - if(cntxt.peer_id) + if(cntxt.peer_id && !cntxt.m_in_timedsync) + { + cntxt.m_in_timedsync = true; cncts.push_back(local_connects_type::value_type(cntxt, cntxt.peer_id));//do idle sync only with handshaked connections + } return true; });