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abstract_tcp_server2: improve tracking/cancelling of early connections

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We don't actually need to keep them past the call to start, as this
adds them to the config object list, and so they'll then be cancelled
already when the stop signal arrives. This allows removing the periodic
call to cleanup connections.
This commit is contained in:
moneromooo-monero 2017-08-16 15:41:34 +01:00
parent 9e6bcbc014
commit 80d361c795
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GPG key ID: 686F07454D6CEFC3
2 changed files with 15 additions and 22 deletions
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4
contrib/epee/include/net/abstract_tcp_server2.h
View file

@ -281,8 +281,6 @@ namespace net_utils
bool is_thread_worker();
bool cleanup_connections();
/// The io_service used to perform asynchronous operations.
std::unique_ptr<boost::asio::io_service> m_io_service_local_instance;
boost::asio::io_service& io_service_;
@ -309,7 +307,7 @@ namespace net_utils
connection_ptr new_connection_;
boost::mutex connections_mutex;
std::deque<std::pair<boost::system_time, connection_ptr>> connections_;
std::set<connection_ptr> connections_;
}; // class <>boosted_tcp_server

33
contrib/epee/include/net/abstract_tcp_server2.inl
View file

@ -54,8 +54,6 @@
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "net"
#define CONNECTION_CLEANUP_TIME 30 // seconds
PRAGMA_WARNING_PUSH
namespace epee
{
@ -808,7 +806,6 @@ POP_WARNINGS
m_threads_count = threads_count;
m_main_thread_id = boost::this_thread::get_id();
MLOG_SET_THREAD_NAME("[SRV_MAIN]");
add_idle_handler(boost::bind(&boosted_tcp_server::cleanup_connections, this), 5000);
while(!m_stop_signal_sent)
{
@ -898,7 +895,7 @@ POP_WARNINGS
connections_mutex.lock();
for (auto &c: connections_)
{
c.second->cancel();
c->cancel();
}
connections_.clear();
connections_mutex.unlock();
@ -907,19 +904,6 @@ POP_WARNINGS
}
//---------------------------------------------------------------------------------
template<class t_protocol_handler>
bool boosted_tcp_server<t_protocol_handler>::cleanup_connections()
{
connections_mutex.lock();
boost::system_time cutoff = boost::get_system_time() - boost::posix_time::seconds(CONNECTION_CLEANUP_TIME);
while (!connections_.empty() && connections_.front().first < cutoff)
{
connections_.pop_front();
}
connections_mutex.unlock();
return true;
}
//---------------------------------------------------------------------------------
template<class t_protocol_handler>
bool boosted_tcp_server<t_protocol_handler>::is_stop_signal_sent()
{
return m_stop_signal_sent;
@ -958,9 +942,10 @@ POP_WARNINGS
connection_ptr new_connection_l(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type) );
connections_mutex.lock();
connections_.push_back(std::make_pair(boost::get_system_time(), new_connection_l));
connections_.insert(new_connection_l);
MDEBUG("connections_ size now " << connections_.size());
connections_mutex.unlock();
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ CRITICAL_REGION_LOCAL(connections_mutex); connections_.erase(new_connection_l); });
boost::asio::ip::tcp::socket& sock_ = new_connection_l->socket();
//////////////////////////////////////////////////////////////////////////
@ -1038,6 +1023,10 @@ POP_WARNINGS
_dbg3("Connected success to " << adr << ':' << port);
// start adds the connection to the config object's list, so we don't need to have it locally anymore
connections_mutex.lock();
connections_.erase(new_connection_l);
connections_mutex.unlock();
bool r = new_connection_l->start(false, 1 < m_threads_count);
if (r)
{
@ -1062,9 +1051,10 @@ POP_WARNINGS
TRY_ENTRY();
connection_ptr new_connection_l(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type) );
connections_mutex.lock();
connections_.push_back(std::make_pair(boost::get_system_time(), new_connection_l));
connections_.insert(new_connection_l);
MDEBUG("connections_ size now " << connections_.size());
connections_mutex.unlock();
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ CRITICAL_REGION_LOCAL(connections_mutex); connections_.erase(new_connection_l); });
boost::asio::ip::tcp::socket& sock_ = new_connection_l->socket();
//////////////////////////////////////////////////////////////////////////
@ -1113,6 +1103,11 @@ POP_WARNINGS
{
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Connected success to " << adr << ':' << port <<
" from " << lep.address().to_string() << ':' << lep.port());
// start adds the connection to the config object's list, so we don't need to have it locally anymore
connections_mutex.lock();
connections_.erase(new_connection_l);
connections_mutex.unlock();
bool r = new_connection_l->start(false, 1 < m_threads_count);
if (r)
{