89 lines
3.6 KiB
C++
89 lines
3.6 KiB
C++
/*
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* Copyright (c) 2015, Cryptonomex, Inc.
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* All rights reserved.
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*
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* This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
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* the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
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* are permitted until September 8, 2015, provided that the following conditions are met:
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*
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* 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <graphene/delayed_node/delayed_node_plugin.hpp>
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#include <graphene/chain/database.hpp>
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#include <graphene/app/api.hpp>
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#include <fc/network/http/websocket.hpp>
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#include <fc/rpc/websocket_api.hpp>
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#include <fc/api.hpp>
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namespace graphene { namespace delayed_node {
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namespace bpo = boost::program_options;
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namespace detail {
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struct delayed_node_plugin_impl {
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std::string remote_endpoint;
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int delay_blocks;
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std::shared_ptr<fc::rpc::websocket_api_connection> client_connection;
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fc::api<graphene::app::database_api> database_api;
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boost::signals2::scoped_connection client_connection_closed;
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};
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}
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delayed_node_plugin::delayed_node_plugin()
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: my(new detail::delayed_node_plugin_impl)
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{}
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void delayed_node_plugin::plugin_set_program_options(bpo::options_description&, bpo::options_description& cfg)
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{
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cfg.add_options()
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("trusted_node", boost::program_options::value<std::string>()->required(), "RPC endpoint of a trusted validating node")
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("delay_block_count", boost::program_options::value<int>()->required(), "Number of blocks to delay before advancing chain state")
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;
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}
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void delayed_node_plugin::connect()
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{
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fc::http::websocket_client client;
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my->client_connection = std::make_shared<fc::rpc::websocket_api_connection>(*client.connect(my->remote_endpoint));
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my->database_api = my->client_connection->get_remote_api<graphene::app::database_api>(0);
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my->client_connection_closed = my->client_connection->closed.connect([this] {
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connection_failed();
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});
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}
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void delayed_node_plugin::plugin_initialize(const boost::program_options::variables_map& options)
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{
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my->remote_endpoint = options.at("trusted_node").as<std::string>();
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my->delay_blocks = options.at("delay_block_count").as<int>();
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try {
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connect();
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} catch (const fc::exception& e) {
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elog("Error during connection: ${e}", ("e", e.to_detail_string()));
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connection_failed();
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}
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}
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void delayed_node_plugin::connection_failed()
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{
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elog("Connection to trusted node failed; retrying in 5 seconds...");
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fc::usleep(fc::seconds(5));
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try {
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connect();
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} catch (const fc::exception& e) {
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elog("Error during connection: ${e}", ("e", e.to_detail_string()));
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fc::async([this]{connection_failed();});
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}
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}
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} }
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