Socket write queue fixes and improvements (#4202)
Fixes a socket data error where partial simultaneous writes can be interleaved corrupting the connection. Adds ability to prioritise non-bootstrap traffic
This commit is contained in:
Piotr Wójcik
GitHub
parent
168367ac78
commit
62bdaba67c
16 changed files with 317 additions and 122 deletions
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@ -65,9 +65,9 @@ TEST (socket, max_connections)
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return node->stats.count (nano::stat::type::tcp, nano::stat::detail::tcp_accept_success, nano::stat::dir::in);
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};
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ASSERT_TIMELY (5s, get_tcp_accept_failures () == 1);
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ASSERT_TIMELY (5s, get_tcp_accept_successes () == 2);
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ASSERT_TIMELY (5s, connection_attempts == 3);
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ASSERT_TIMELY_EQ (5s, get_tcp_accept_failures (), 1);
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ASSERT_TIMELY_EQ (5s, get_tcp_accept_successes (), 2);
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ASSERT_TIMELY_EQ (5s, connection_attempts, 3);
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// create space for one socket and fill the connections table again
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@ -79,9 +79,9 @@ TEST (socket, max_connections)
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auto client5 = std::make_shared<nano::transport::client_socket> (*node);
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client5->async_connect (dst_endpoint, connect_handler);
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ASSERT_TIMELY (5s, get_tcp_accept_failures () == 2);
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ASSERT_TIMELY (5s, get_tcp_accept_successes () == 3);
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ASSERT_TIMELY (5s, connection_attempts == 5);
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ASSERT_TIMELY_EQ (5s, get_tcp_accept_failures (), 2);
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ASSERT_TIMELY_EQ (5s, get_tcp_accept_successes (), 3);
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ASSERT_TIMELY_EQ (5s, connection_attempts, 5);
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// close all existing sockets and fill the connections table again
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// start counting form 1 because 0 is the already closed socket
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@ -99,10 +99,10 @@ TEST (socket, max_connections)
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auto client8 = std::make_shared<nano::transport::client_socket> (*node);
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client8->async_connect (dst_endpoint, connect_handler);
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ASSERT_TIMELY (5s, get_tcp_accept_failures () == 3);
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ASSERT_TIMELY (5s, get_tcp_accept_successes () == 5);
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ASSERT_TIMELY (5s, connection_attempts == 8); // connections initiated by the client
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ASSERT_TIMELY (5s, server_sockets.size () == 5); // connections accepted by the server
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ASSERT_TIMELY_EQ (5s, get_tcp_accept_failures (), 3);
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ASSERT_TIMELY_EQ (5s, get_tcp_accept_successes (), 5);
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ASSERT_TIMELY_EQ (5s, connection_attempts, 8); // connections initiated by the client
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ASSERT_TIMELY_EQ (5s, server_sockets.size (), 5); // connections accepted by the server
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node->stop ();
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}
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@ -459,11 +459,11 @@ TEST (socket, drop_policy)
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// We're going to write twice the queue size + 1, and the server isn't reading
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// The total number of drops should thus be 1 (the socket allows doubling the queue size for no_socket_drop)
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func (nano::transport::socket::queue_size_max * 2 + 1, nano::transport::buffer_drop_policy::no_socket_drop);
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func (nano::transport::socket::default_max_queue_size * 2 + 1, nano::transport::buffer_drop_policy::no_socket_drop);
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ASSERT_EQ (1, node->stats.count (nano::stat::type::tcp, nano::stat::detail::tcp_write_no_socket_drop, nano::stat::dir::out));
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ASSERT_EQ (0, node->stats.count (nano::stat::type::tcp, nano::stat::detail::tcp_write_drop, nano::stat::dir::out));
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func (nano::transport::socket::queue_size_max + 1, nano::transport::buffer_drop_policy::limiter);
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func (nano::transport::socket::default_max_queue_size + 1, nano::transport::buffer_drop_policy::limiter);
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// The stats are accumulated from before
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ASSERT_EQ (1, node->stats.count (nano::stat::type::tcp, nano::stat::detail::tcp_write_no_socket_drop, nano::stat::dir::out));
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ASSERT_EQ (1, node->stats.count (nano::stat::type::tcp, nano::stat::detail::tcp_write_drop, nano::stat::dir::out));
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@ -716,7 +716,7 @@ TEST (socket_timeout, write)
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// create a client socket and send lots of data to fill the socket queue on the local and remote side
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// eventually, the all tcp queues should fill up and async_write will not be able to progress
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// and the timeout should kick in and close the socket, which will cause the async_write to return an error
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auto socket = std::make_shared<nano::transport::client_socket> (*node);
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auto socket = std::make_shared<nano::transport::client_socket> (*node, 1024 * 64); // socket with a max queue size much larger than OS buffers
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std::atomic<bool> done = false;
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boost::system::error_code ec;
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socket->async_connect (endpoint, [&socket, &ec, &done] (boost::system::error_code const & ec_a) {
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@ -826,7 +826,7 @@ TEST (socket_timeout, write_overlapped)
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// create a client socket and send lots of data to fill the socket queue on the local and remote side
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// eventually, the all tcp queues should fill up and async_write will not be able to progress
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// and the timeout should kick in and close the socket, which will cause the async_write to return an error
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auto socket = std::make_shared<nano::transport::client_socket> (*node);
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auto socket = std::make_shared<nano::transport::client_socket> (*node, 1024 * 64); // socket with a max queue size much larger than OS buffers
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std::atomic<bool> done = false;
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boost::system::error_code ec;
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socket->async_connect (endpoint, [&socket, &ec, &done] (boost::system::error_code const & ec_a) {
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@ -57,3 +57,18 @@ void nano::outbound_bandwidth_limiter::reset (std::size_t limit, double burst_ra
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auto & limiter = select_limiter (type);
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limiter.reset (limit, burst_ratio);
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}
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nano::bandwidth_limit_type nano::to_bandwidth_limit_type (const nano::transport::traffic_type & traffic_type)
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{
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switch (traffic_type)
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{
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case nano::transport::traffic_type::generic:
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return nano::bandwidth_limit_type::standard;
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break;
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case nano::transport::traffic_type::bootstrap:
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return nano::bandwidth_limit_type::bootstrap;
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break;
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}
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debug_assert (false);
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return {};
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}
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@ -1,6 +1,7 @@
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#pragma once
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#include <nano/lib/rate_limiting.hpp>
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#include <nano/node/transport/traffic_type.hpp>
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namespace nano
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{
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@ -15,6 +16,8 @@ enum class bandwidth_limit_type
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bootstrap
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};
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nano::bandwidth_limit_type to_bandwidth_limit_type (nano::transport::traffic_type const &);
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/**
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* Class that tracks and manages bandwidth limits for IO operations
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*/
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@ -456,7 +456,7 @@ void nano::bootstrap_ascending::send (std::shared_ptr<nano::transport::channel>
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// TODO: There is no feedback mechanism if bandwidth limiter starts dropping our requests
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channel->send (
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request, nullptr,
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nano::transport::buffer_drop_policy::limiter, nano::bandwidth_limit_type::bootstrap);
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nano::transport::buffer_drop_policy::limiter, nano::transport::traffic_type::bootstrap);
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}
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size_t nano::bootstrap_ascending::priority_size () const
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@ -562,7 +562,7 @@ std::shared_ptr<nano::transport::channel> nano::bootstrap_ascending::available_c
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auto channels = network.random_set (32, node.network_params.network.bootstrap_protocol_version_min, /* include temporary channels */ true);
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for (auto & channel : channels)
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{
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if (!channel->max ())
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if (!channel->max (nano::transport::traffic_type::bootstrap))
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{
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return channel;
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}
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@ -81,7 +81,7 @@ bool nano::bootstrap_server::request (nano::asc_pull_req const & message, std::s
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// If channel is full our response will be dropped anyway, so filter that early
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// TODO: Add per channel limits (this ideally should be done on the channel message processing side)
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if (channel->max ())
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if (channel->max (nano::transport::traffic_type::bootstrap))
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{
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stats.inc (nano::stat::type::bootstrap_server, nano::stat::detail::channel_full, nano::stat::dir::in);
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return false;
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@ -125,7 +125,7 @@ void nano::bootstrap_server::respond (nano::asc_pull_ack & response, std::shared
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stats.inc (nano::stat::type::bootstrap_server, nano::stat::detail::write_error, nano::stat::dir::out);
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}
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},
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nano::transport::buffer_drop_policy::limiter, nano::bandwidth_limit_type::bootstrap);
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nano::transport::buffer_drop_policy::limiter, nano::transport::traffic_type::bootstrap);
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}
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/*
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@ -138,7 +138,7 @@ void nano::bootstrap_server::process_batch (std::deque<request_t> & batch)
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for (auto & [request, channel] : batch)
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{
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if (!channel->max ())
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if (!channel->max (nano::transport::traffic_type::bootstrap))
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{
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auto response = process (transaction, request);
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respond (response, channel);
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@ -14,15 +14,15 @@ nano::transport::channel::channel (nano::node & node_a) :
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set_network_version (node_a.network_params.network.protocol_version);
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}
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void nano::transport::channel::send (nano::message & message_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy drop_policy_a, nano::bandwidth_limit_type limiter_type)
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void nano::transport::channel::send (nano::message & message_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy drop_policy_a, nano::transport::traffic_type traffic_type)
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{
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auto buffer (message_a.to_shared_const_buffer ());
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auto detail = nano::to_stat_detail (message_a.header.type);
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auto is_droppable_by_limiter = (drop_policy_a == nano::transport::buffer_drop_policy::limiter);
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auto should_pass (node.outbound_limiter.should_pass (buffer.size (), limiter_type));
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auto should_pass (node.outbound_limiter.should_pass (buffer.size (), to_bandwidth_limit_type (traffic_type)));
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if (!is_droppable_by_limiter || should_pass)
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{
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send_buffer (buffer, callback_a, drop_policy_a);
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send_buffer (buffer, callback_a, drop_policy_a, traffic_type);
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node.stats.inc (nano::stat::type::message, detail, nano::stat::dir::out);
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}
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else
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@ -27,15 +27,25 @@ public:
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virtual std::size_t hash_code () const = 0;
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virtual bool operator== (nano::transport::channel const &) const = 0;
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void send (nano::message & message_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a = nullptr, nano::transport::buffer_drop_policy policy_a = nano::transport::buffer_drop_policy::limiter, nano::bandwidth_limit_type = nano::bandwidth_limit_type::standard);
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void send (nano::message & message_a,
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std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a = nullptr,
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nano::transport::buffer_drop_policy policy_a = nano::transport::buffer_drop_policy::limiter,
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nano::transport::traffic_type = nano::transport::traffic_type::generic);
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// TODO: investigate clang-tidy warning about default parameters on virtual/override functions
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//
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virtual void send_buffer (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr, nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter) = 0;
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virtual void send_buffer (nano::shared_const_buffer const &,
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std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr,
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nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter,
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nano::transport::traffic_type = nano::transport::traffic_type::generic)
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= 0;
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virtual std::string to_string () const = 0;
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virtual nano::endpoint get_endpoint () const = 0;
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virtual nano::tcp_endpoint get_tcp_endpoint () const = 0;
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virtual nano::transport::transport_type get_type () const = 0;
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virtual bool max ()
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virtual bool max (nano::transport::traffic_type = nano::transport::traffic_type::generic)
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{
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return false;
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}
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@ -14,7 +14,7 @@ nano::transport::fake::channel::channel (nano::node & node) :
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/**
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* The send function behaves like a null device, it throws the data away and returns success.
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*/
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void nano::transport::fake::channel::send_buffer (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy drop_policy_a)
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void nano::transport::fake::channel::send_buffer (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy drop_policy_a, nano::transport::traffic_type traffic_type)
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{
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// auto bytes = buffer_a.to_bytes ();
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auto size = buffer_a.size ();
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@ -20,13 +20,11 @@ namespace transport
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std::string to_string () const override;
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std::size_t hash_code () const override;
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// clang-format off
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void send_buffer (
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nano::shared_const_buffer const &,
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std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr,
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nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter
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) override;
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// clang-format on
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nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter,
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nano::transport::traffic_type = nano::transport::traffic_type::generic) override;
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bool operator== (nano::transport::channel const &) const override;
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bool operator== (nano::transport::fake::channel const & other_a) const;
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@ -53,7 +53,7 @@ public:
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* Send the buffer to the peer and call the callback function when done. The call never fails.
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* Note that the inbound message visitor will be called before the callback because it is called directly whereas the callback is spawned in the background.
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*/
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void nano::transport::inproc::channel::send_buffer (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy drop_policy_a)
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void nano::transport::inproc::channel::send_buffer (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy drop_policy_a, nano::transport::traffic_type traffic_type)
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{
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std::size_t offset{ 0 };
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auto const buffer_read_fn = [&offset, buffer_v = buffer_a.to_bytes ()] (std::shared_ptr<std::vector<uint8_t>> const & data_a, std::size_t size_a, std::function<void (boost::system::error_code const &, std::size_t)> callback_a) {
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@ -18,9 +18,10 @@ namespace transport
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explicit channel (nano::node & node, nano::node & destination);
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std::size_t hash_code () const override;
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bool operator== (nano::transport::channel const &) const override;
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// TODO: investigate clang-tidy warning about default parameters on virtual/override functions
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//
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void send_buffer (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr, nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter) override;
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void send_buffer (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr, nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter, nano::transport::traffic_type = nano::transport::traffic_type::generic) override;
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std::string to_string () const override;
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bool operator== (nano::transport::inproc::channel const & other_a) const
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{
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@ -33,7 +33,12 @@ bool is_temporary_error (boost::system::error_code const & ec_a)
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}
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}
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nano::transport::socket::socket (nano::node & node_a, endpoint_type_t endpoint_type_a) :
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/*
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* socket
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*/
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nano::transport::socket::socket (nano::node & node_a, endpoint_type_t endpoint_type_a, std::size_t max_queue_size_a) :
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send_queue{ max_queue_size_a },
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strand{ node_a.io_ctx.get_executor () },
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tcp_socket{ node_a.io_ctx },
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node{ node_a },
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@ -42,7 +47,8 @@ nano::transport::socket::socket (nano::node & node_a, endpoint_type_t endpoint_t
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last_completion_time_or_init{ nano::seconds_since_epoch () },
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last_receive_time_or_init{ nano::seconds_since_epoch () },
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default_timeout{ node_a.config.tcp_io_timeout },
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silent_connection_tolerance_time{ node_a.network_params.network.silent_connection_tolerance_time }
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silent_connection_tolerance_time{ node_a.network_params.network.silent_connection_tolerance_time },
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max_queue_size{ max_queue_size_a }
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{
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}
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@ -51,12 +57,17 @@ nano::transport::socket::~socket ()
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close_internal ();
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}
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void nano::transport::socket::start ()
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{
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ongoing_checkup ();
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}
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void nano::transport::socket::async_connect (nano::tcp_endpoint const & endpoint_a, std::function<void (boost::system::error_code const &)> callback_a)
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{
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debug_assert (callback_a);
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debug_assert (endpoint_type () == endpoint_type_t::client);
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checkup ();
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start ();
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auto this_l (shared_from_this ());
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set_default_timeout ();
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@ -116,7 +127,7 @@ void nano::transport::socket::async_read (std::shared_ptr<std::vector<uint8_t>>
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}
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}
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void nano::transport::socket::async_write (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> callback_a)
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void nano::transport::socket::async_write (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> callback_a, nano::transport::traffic_type traffic_type)
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{
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if (closed)
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{
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@ -126,47 +137,81 @@ void nano::transport::socket::async_write (nano::shared_const_buffer const & buf
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callback (boost::system::errc::make_error_code (boost::system::errc::not_supported), 0);
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});
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}
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return;
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}
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++queue_size;
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boost::asio::post (strand, boost::asio::bind_executor (strand, [buffer_a, callback = std::move (callback_a), this_l = shared_from_this ()] () mutable {
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if (this_l->closed)
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bool queued = send_queue.insert (buffer_a, callback_a, traffic_type);
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if (!queued)
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{
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if (callback)
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if (callback_a)
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{
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node.background ([callback = std::move (callback_a)] () {
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callback (boost::system::errc::make_error_code (boost::system::errc::not_supported), 0);
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});
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}
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return;
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}
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|
||||
this_l->set_default_timeout ();
|
||||
boost::asio::post (strand, boost::asio::bind_executor (strand, [this_s = shared_from_this (), buffer_a, callback_a, traffic_type] () {
|
||||
if (!this_s->write_in_progress)
|
||||
{
|
||||
this_s->write_queued_messages ();
|
||||
}
|
||||
}));
|
||||
}
|
||||
|
||||
nano::async_write (this_l->tcp_socket, buffer_a,
|
||||
boost::asio::bind_executor (this_l->strand,
|
||||
[buffer_a, cbk = std::move (callback), this_l] (boost::system::error_code ec, std::size_t size_a) {
|
||||
--this_l->queue_size;
|
||||
// Must be called from strand
|
||||
void nano::transport::socket::write_queued_messages ()
|
||||
{
|
||||
if (closed)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
auto next = send_queue.pop ();
|
||||
if (!next)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
set_default_timeout ();
|
||||
|
||||
write_in_progress = true;
|
||||
nano::async_write (tcp_socket, next->buffer,
|
||||
boost::asio::bind_executor (strand, [this_s = shared_from_this (), next /* `next` object keeps buffer in scope */] (boost::system::error_code ec, std::size_t size) {
|
||||
this_s->write_in_progress = false;
|
||||
|
||||
if (ec)
|
||||
{
|
||||
this_l->node.stats.inc (nano::stat::type::tcp, nano::stat::detail::tcp_write_error, nano::stat::dir::in);
|
||||
this_l->close ();
|
||||
this_s->node.stats.inc (nano::stat::type::tcp, nano::stat::detail::tcp_write_error, nano::stat::dir::in);
|
||||
this_s->close ();
|
||||
}
|
||||
else
|
||||
{
|
||||
this_l->node.stats.add (nano::stat::type::traffic_tcp, nano::stat::dir::out, size_a);
|
||||
this_l->set_last_completion ();
|
||||
this_s->node.stats.add (nano::stat::type::traffic_tcp, nano::stat::dir::out, size);
|
||||
this_s->set_last_completion ();
|
||||
}
|
||||
|
||||
if (cbk)
|
||||
if (next->callback)
|
||||
{
|
||||
cbk (ec, size_a);
|
||||
next->callback (ec, size);
|
||||
}
|
||||
|
||||
if (!ec)
|
||||
{
|
||||
this_s->write_queued_messages ();
|
||||
}
|
||||
}));
|
||||
}));
|
||||
}
|
||||
|
||||
bool nano::transport::socket::max (nano::transport::traffic_type traffic_type) const
|
||||
{
|
||||
return send_queue.size (traffic_type) >= max_queue_size;
|
||||
}
|
||||
|
||||
bool nano::transport::socket::full (nano::transport::traffic_type traffic_type) const
|
||||
{
|
||||
return send_queue.size (traffic_type) >= 2 * max_queue_size;
|
||||
}
|
||||
|
||||
/** Call set_timeout with default_timeout as parameter */
|
||||
|
|
@ -196,7 +241,7 @@ void nano::transport::socket::set_last_receive_time ()
|
|||
last_receive_time_or_init = nano::seconds_since_epoch ();
|
||||
}
|
||||
|
||||
void nano::transport::socket::checkup ()
|
||||
void nano::transport::socket::ongoing_checkup ()
|
||||
{
|
||||
std::weak_ptr<nano::transport::socket> this_w (shared_from_this ());
|
||||
node.workers.add_timed_task (std::chrono::steady_clock::now () + std::chrono::seconds (node.network_params.network.is_dev_network () ? 1 : 5), [this_w] () {
|
||||
|
|
@ -238,7 +283,7 @@ void nano::transport::socket::checkup ()
|
|||
}
|
||||
else if (!this_l->closed)
|
||||
{
|
||||
this_l->checkup ();
|
||||
this_l->ongoing_checkup ();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
|
@ -289,21 +334,26 @@ void nano::transport::socket::close ()
|
|||
// This must be called from a strand or the destructor
|
||||
void nano::transport::socket::close_internal ()
|
||||
{
|
||||
if (!closed.exchange (true))
|
||||
if (closed.exchange (true))
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
send_queue.clear ();
|
||||
|
||||
default_timeout = std::chrono::seconds (0);
|
||||
boost::system::error_code ec;
|
||||
|
||||
// Ignore error code for shutdown as it is best-effort
|
||||
tcp_socket.shutdown (boost::asio::ip::tcp::socket::shutdown_both, ec);
|
||||
tcp_socket.close (ec);
|
||||
|
||||
if (ec)
|
||||
{
|
||||
node.logger.try_log ("Failed to close socket gracefully: ", ec.message ());
|
||||
node.stats.inc (nano::stat::type::bootstrap, nano::stat::detail::error_socket_close);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
nano::tcp_endpoint nano::transport::socket::remote_endpoint () const
|
||||
{
|
||||
|
|
@ -315,6 +365,82 @@ nano::tcp_endpoint nano::transport::socket::local_endpoint () const
|
|||
return tcp_socket.local_endpoint ();
|
||||
}
|
||||
|
||||
/*
|
||||
* write_queue
|
||||
*/
|
||||
|
||||
nano::transport::socket::write_queue::write_queue (std::size_t max_size_a) :
|
||||
max_size{ max_size_a }
|
||||
{
|
||||
}
|
||||
|
||||
bool nano::transport::socket::write_queue::insert (const buffer_t & buffer, callback_t callback, nano::transport::traffic_type traffic_type)
|
||||
{
|
||||
nano::lock_guard<nano::mutex> guard{ mutex };
|
||||
if (queues[traffic_type].size () < 2 * max_size)
|
||||
{
|
||||
queues[traffic_type].push (entry{ buffer, callback });
|
||||
return true; // Queued
|
||||
}
|
||||
return false; // Not queued
|
||||
}
|
||||
|
||||
std::optional<nano::transport::socket::write_queue::entry> nano::transport::socket::write_queue::pop ()
|
||||
{
|
||||
nano::lock_guard<nano::mutex> guard{ mutex };
|
||||
|
||||
auto try_pop = [this] (nano::transport::traffic_type type) -> std::optional<entry> {
|
||||
auto & que = queues[type];
|
||||
if (!que.empty ())
|
||||
{
|
||||
auto item = que.front ();
|
||||
que.pop ();
|
||||
return item;
|
||||
}
|
||||
return std::nullopt;
|
||||
};
|
||||
|
||||
// TODO: This is a very basic prioritization, implement something more advanced and configurable
|
||||
if (auto item = try_pop (nano::transport::traffic_type::generic))
|
||||
{
|
||||
return item;
|
||||
}
|
||||
if (auto item = try_pop (nano::transport::traffic_type::bootstrap))
|
||||
{
|
||||
return item;
|
||||
}
|
||||
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
void nano::transport::socket::write_queue::clear ()
|
||||
{
|
||||
nano::lock_guard<nano::mutex> guard{ mutex };
|
||||
queues.clear ();
|
||||
}
|
||||
|
||||
std::size_t nano::transport::socket::write_queue::size (nano::transport::traffic_type traffic_type) const
|
||||
{
|
||||
nano::lock_guard<nano::mutex> guard{ mutex };
|
||||
if (auto it = queues.find (traffic_type); it != queues.end ())
|
||||
{
|
||||
return it->second.size ();
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool nano::transport::socket::write_queue::empty () const
|
||||
{
|
||||
nano::lock_guard<nano::mutex> guard{ mutex };
|
||||
return std::all_of (queues.begin (), queues.end (), [] (auto const & que) {
|
||||
return que.second.empty ();
|
||||
});
|
||||
}
|
||||
|
||||
/*
|
||||
* server_socket
|
||||
*/
|
||||
|
||||
nano::transport::server_socket::server_socket (nano::node & node_a, boost::asio::ip::tcp::endpoint local_a, std::size_t max_connections_a) :
|
||||
socket{ node_a, endpoint_type_t::server },
|
||||
acceptor{ node_a.io_ctx },
|
||||
|
|
@ -474,7 +600,7 @@ void nano::transport::server_socket::on_connection (std::function<bool (std::sha
|
|||
{
|
||||
// Make sure the new connection doesn't idle. Note that in most cases, the callback is going to start
|
||||
// an IO operation immediately, which will start a timer.
|
||||
new_connection->checkup ();
|
||||
new_connection->start ();
|
||||
new_connection->set_timeout (this_l->node.network_params.network.idle_timeout);
|
||||
this_l->node.stats.inc (nano::stat::type::tcp, nano::stat::detail::tcp_accept_success, nano::stat::dir::in);
|
||||
this_l->connections_per_address.emplace (new_connection->remote.address (), new_connection);
|
||||
|
|
|
|||
|
|
@ -3,11 +3,16 @@
|
|||
#include <nano/boost/asio/ip/tcp.hpp>
|
||||
#include <nano/boost/asio/strand.hpp>
|
||||
#include <nano/lib/asio.hpp>
|
||||
#include <nano/lib/locks.hpp>
|
||||
#include <nano/lib/timer.hpp>
|
||||
#include <nano/node/transport/traffic_type.hpp>
|
||||
|
||||
#include <chrono>
|
||||
#include <map>
|
||||
#include <memory>
|
||||
#include <optional>
|
||||
#include <queue>
|
||||
#include <unordered_map>
|
||||
#include <vector>
|
||||
|
||||
namespace boost::asio::ip
|
||||
|
|
@ -43,6 +48,8 @@ class socket : public std::enable_shared_from_this<nano::transport::socket>
|
|||
friend class tcp_channels;
|
||||
|
||||
public:
|
||||
static std::size_t constexpr default_max_queue_size = 128;
|
||||
|
||||
enum class type_t
|
||||
{
|
||||
undefined,
|
||||
|
|
@ -62,12 +69,14 @@ public:
|
|||
* @param node Owning node
|
||||
* @param endpoint_type_a The endpoint's type: either server or client
|
||||
*/
|
||||
explicit socket (nano::node & node, endpoint_type_t endpoint_type_a);
|
||||
explicit socket (nano::node & node, endpoint_type_t endpoint_type_a, std::size_t max_queue_size = default_max_queue_size);
|
||||
virtual ~socket ();
|
||||
|
||||
void start ();
|
||||
|
||||
void async_connect (boost::asio::ip::tcp::endpoint const &, std::function<void (boost::system::error_code const &)>);
|
||||
void async_read (std::shared_ptr<std::vector<uint8_t>> const &, std::size_t, std::function<void (boost::system::error_code const &, std::size_t)>);
|
||||
void async_write (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> = {});
|
||||
void async_write (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> callback = {}, nano::transport::traffic_type = nano::transport::traffic_type::generic);
|
||||
|
||||
virtual void close ();
|
||||
boost::asio::ip::tcp::endpoint remote_endpoint () const;
|
||||
|
|
@ -79,14 +88,10 @@ public:
|
|||
std::chrono::seconds get_default_timeout_value () const;
|
||||
void set_timeout (std::chrono::seconds);
|
||||
void set_silent_connection_tolerance_time (std::chrono::seconds tolerance_time_a);
|
||||
bool max () const
|
||||
{
|
||||
return queue_size >= queue_size_max;
|
||||
}
|
||||
bool full () const
|
||||
{
|
||||
return queue_size >= queue_size_max * 2;
|
||||
}
|
||||
|
||||
bool max (nano::transport::traffic_type = nano::transport::traffic_type::generic) const;
|
||||
bool full (nano::transport::traffic_type = nano::transport::traffic_type::generic) const;
|
||||
|
||||
type_t type () const
|
||||
{
|
||||
return type_m;
|
||||
|
|
@ -116,15 +121,38 @@ public:
|
|||
return !closed && tcp_socket.is_open ();
|
||||
}
|
||||
|
||||
protected:
|
||||
/** Holds the buffer and callback for queued writes */
|
||||
class queue_item
|
||||
private:
|
||||
class write_queue
|
||||
{
|
||||
public:
|
||||
nano::shared_const_buffer buffer;
|
||||
std::function<void (boost::system::error_code const &, std::size_t)> callback;
|
||||
using buffer_t = nano::shared_const_buffer;
|
||||
using callback_t = std::function<void (boost::system::error_code const &, std::size_t)>;
|
||||
|
||||
struct entry
|
||||
{
|
||||
buffer_t buffer;
|
||||
callback_t callback;
|
||||
};
|
||||
|
||||
public:
|
||||
explicit write_queue (std::size_t max_size);
|
||||
|
||||
bool insert (buffer_t const &, callback_t, nano::transport::traffic_type);
|
||||
std::optional<entry> pop ();
|
||||
void clear ();
|
||||
std::size_t size (nano::transport::traffic_type) const;
|
||||
bool empty () const;
|
||||
|
||||
std::size_t const max_size;
|
||||
|
||||
private:
|
||||
mutable nano::mutex mutex;
|
||||
std::unordered_map<nano::transport::traffic_type, std::queue<entry>> queues;
|
||||
};
|
||||
|
||||
write_queue send_queue;
|
||||
|
||||
protected:
|
||||
boost::asio::strand<boost::asio::io_context::executor_type> strand;
|
||||
boost::asio::ip::tcp::socket tcp_socket;
|
||||
nano::node & node;
|
||||
|
|
@ -158,22 +186,19 @@ protected:
|
|||
/** used in real time server sockets, number of seconds of no receive traffic that will cause the socket to timeout */
|
||||
std::chrono::seconds silent_connection_tolerance_time;
|
||||
|
||||
/** Tracks number of blocks queued for delivery to the local socket send buffers.
|
||||
* Under normal circumstances, this should be zero.
|
||||
* Note that this is not the number of buffers queued to the peer, it is the number of buffers
|
||||
* queued up to enter the local TCP send buffer
|
||||
* socket buffer queue -> TCP send queue -> (network) -> TCP receive queue of peer
|
||||
*/
|
||||
std::atomic<std::size_t> queue_size{ 0 };
|
||||
|
||||
/** Set by close() - completion handlers must check this. This is more reliable than checking
|
||||
error codes as the OS may have already completed the async operation. */
|
||||
std::atomic<bool> closed{ false };
|
||||
|
||||
/** Updated only from strand, but stored as atomic so it can be read from outside */
|
||||
std::atomic<bool> write_in_progress{ false };
|
||||
|
||||
void close_internal ();
|
||||
void write_queued_messages ();
|
||||
void set_default_timeout ();
|
||||
void set_last_completion ();
|
||||
void set_last_receive_time ();
|
||||
void checkup ();
|
||||
void ongoing_checkup ();
|
||||
void read_impl (std::shared_ptr<std::vector<uint8_t>> const & data_a, std::size_t size_a, std::function<void (boost::system::error_code const &, std::size_t)> callback_a);
|
||||
|
||||
private:
|
||||
|
|
@ -181,7 +206,7 @@ private:
|
|||
endpoint_type_t endpoint_type_m;
|
||||
|
||||
public:
|
||||
static std::size_t constexpr queue_size_max = 128;
|
||||
std::size_t const max_queue_size;
|
||||
};
|
||||
|
||||
std::string socket_type_to_string (socket::type_t type);
|
||||
|
|
@ -238,8 +263,8 @@ public:
|
|||
* Constructor
|
||||
* @param node_a Owning node
|
||||
*/
|
||||
explicit client_socket (nano::node & node_a) :
|
||||
socket{ node_a, endpoint_type_t::client }
|
||||
explicit client_socket (nano::node & node_a, std::size_t max_queue_size = default_max_queue_size) :
|
||||
socket{ node_a, endpoint_type_t::client, max_queue_size }
|
||||
{
|
||||
}
|
||||
};
|
||||
|
|
|
|||
|
|
@ -46,11 +46,11 @@ bool nano::transport::channel_tcp::operator== (nano::transport::channel const &
|
|||
return result;
|
||||
}
|
||||
|
||||
void nano::transport::channel_tcp::send_buffer (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy policy_a)
|
||||
void nano::transport::channel_tcp::send_buffer (nano::shared_const_buffer const & buffer_a, std::function<void (boost::system::error_code const &, std::size_t)> const & callback_a, nano::transport::buffer_drop_policy policy_a, nano::transport::traffic_type traffic_type)
|
||||
{
|
||||
if (auto socket_l = socket.lock ())
|
||||
{
|
||||
if (!socket_l->max () || (policy_a == nano::transport::buffer_drop_policy::no_socket_drop && !socket_l->full ()))
|
||||
if (!socket_l->max (traffic_type) || (policy_a == nano::transport::buffer_drop_policy::no_socket_drop && !socket_l->full (traffic_type)))
|
||||
{
|
||||
socket_l->async_write (
|
||||
buffer_a, [endpoint_a = socket_l->remote_endpoint (), node = std::weak_ptr<nano::node> (node.shared ()), callback_a] (boost::system::error_code const & ec, std::size_t size_a) {
|
||||
|
|
@ -69,7 +69,8 @@ void nano::transport::channel_tcp::send_buffer (nano::shared_const_buffer const
|
|||
callback_a (ec, size_a);
|
||||
}
|
||||
}
|
||||
});
|
||||
},
|
||||
traffic_type);
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
|
|||
|
|
@ -37,11 +37,13 @@ namespace transport
|
|||
public:
|
||||
channel_tcp (nano::node &, std::weak_ptr<nano::transport::socket>);
|
||||
~channel_tcp () override;
|
||||
|
||||
std::size_t hash_code () const override;
|
||||
bool operator== (nano::transport::channel const &) const override;
|
||||
// TODO: investigate clang-tidy warning about default parameters on virtual/override functions
|
||||
//
|
||||
void send_buffer (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr, nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter) override;
|
||||
|
||||
// TODO: investigate clang-tidy warning about default parameters on virtual/override functions//
|
||||
void send_buffer (nano::shared_const_buffer const &, std::function<void (boost::system::error_code const &, std::size_t)> const & = nullptr, nano::transport::buffer_drop_policy = nano::transport::buffer_drop_policy::limiter, nano::transport::traffic_type = nano::transport::traffic_type::generic) override;
|
||||
|
||||
std::string to_string () const override;
|
||||
bool operator== (nano::transport::channel_tcp const & other_a) const
|
||||
{
|
||||
|
|
@ -70,12 +72,12 @@ namespace transport
|
|||
return nano::transport::transport_type::tcp;
|
||||
}
|
||||
|
||||
virtual bool max () override
|
||||
virtual bool max (nano::transport::traffic_type traffic_type) override
|
||||
{
|
||||
bool result = true;
|
||||
if (auto socket_l = socket.lock ())
|
||||
{
|
||||
result = socket_l->max ();
|
||||
result = socket_l->max (traffic_type);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
|
|
|||
14
nano/node/transport/traffic_type.hpp
Normal file
14
nano/node/transport/traffic_type.hpp
Normal file
|
|
@ -0,0 +1,14 @@
|
|||
#pragma once
|
||||
|
||||
namespace nano::transport
|
||||
{
|
||||
/**
|
||||
* Used for message prioritization and bandwidth limits
|
||||
*/
|
||||
enum class traffic_type
|
||||
{
|
||||
generic,
|
||||
/** For bootstrap (asc_pull_ack, asc_pull_req) traffic */
|
||||
bootstrap
|
||||
};
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue