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authorHoward Chu <hyc@symas.com>2017-06-04 22:37:53 +0100
committerHoward Chu <hyc@symas.com>2017-06-15 16:54:03 +0100
commit07c4276cbebe453f552dd107a72d7231579dea57 (patch)
tree3fe8ef7ef34c029083d0fb7bb0f80d850ad5216d
parentDon't timeout a slow operation that's making progress (diff)
downloadmonero-07c4276cbebe453f552dd107a72d7231579dea57.tar.xz
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.
-rw-r--r--contrib/epee/include/net/net_utils_base.h3
-rw-r--r--src/p2p/net_node.inl8
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<typename COMMAND_TIMED_SYNC::response>(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<std::pair<epee::net_utils::connection_context_base, peerid_type> > 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;
});