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abstract_tcp_server2: fix crashy race on socket shutdown

This commit is contained in:
moneromooo-monero 2019-03-13 14:37:42 +00:00
parent 1d1a02e9f9
commit 1659029469
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GPG Key ID: 686F07454D6CEFC3
1 changed files with 6 additions and 5 deletions
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11
contrib/epee/include/net/abstract_tcp_server2.inl
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@ -670,9 +670,9 @@ PRAGMA_WARNING_DISABLE_VS(4355)
CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), false, "Unexpected queue size"); CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), false, "Unexpected queue size");
reset_timer(get_default_timeout(), false); reset_timer(get_default_timeout(), false);
async_write(boost::asio::buffer(m_send_que.front().data(), size_now ) , async_write(boost::asio::buffer(m_send_que.front().data(), size_now ) ,
//strand_.wrap( strand_.wrap(
boost::bind(&connection<t_protocol_handler>::handle_write, self, _1, _2) boost::bind(&connection<t_protocol_handler>::handle_write, self, _1, _2)
//) )
); );
//_dbg3("(chunk): " << size_now); //_dbg3("(chunk): " << size_now);
//logger_handle_net_write(size_now); //logger_handle_net_write(size_now);
@ -761,8 +761,9 @@ PRAGMA_WARNING_DISABLE_VS(4355)
// Initiate graceful connection closure. // Initiate graceful connection closure.
m_timer.cancel(); m_timer.cancel();
boost::system::error_code ignored_ec; boost::system::error_code ignored_ec;
if (m_ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_enabled)
socket_.shutdown(ignored_ec);
socket().shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec); socket().shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec);
socket().close();
if (!m_host.empty()) if (!m_host.empty())
{ {
try { host_count(m_host, -1); } catch (...) { /* ignore */ } try { host_count(m_host, -1); } catch (...) { /* ignore */ }
@ -855,9 +856,9 @@ PRAGMA_WARNING_DISABLE_VS(4355)
do_send_handler_write_from_queue(e, m_send_que.front().size() , m_send_que.size()); // (((H))) do_send_handler_write_from_queue(e, m_send_que.front().size() , m_send_que.size()); // (((H)))
CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), void(), "Unexpected queue size"); CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), void(), "Unexpected queue size");
async_write(boost::asio::buffer(m_send_que.front().data(), size_now) , async_write(boost::asio::buffer(m_send_que.front().data(), size_now) ,
// strand_.wrap( strand_.wrap(
boost::bind(&connection<t_protocol_handler>::handle_write, connection<t_protocol_handler>::shared_from_this(), _1, _2) boost::bind(&connection<t_protocol_handler>::handle_write, connection<t_protocol_handler>::shared_from_this(), _1, _2)
// ) )
); );
//_dbg3("(normal)" << size_now); //_dbg3("(normal)" << size_now);
} }