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| /** | ||
| * Copyright Soramitsu Co., Ltd. 2017 All Rights Reserved. | ||
| * http://soramitsu.co.jp | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| #include "server.hpp" | ||
| #include <grpc++/grpc++.h> | ||
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| namespace network { | ||
| Server::Server(std::shared_ptr<uvw::Loop> loop) | ||
| : loop_{loop} { | ||
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| } | ||
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| void Server::run_grpc(uvw::Addr addr, bool blocking) { | ||
| // bind grpc service | ||
| auto listen_on = addr.ip + ":" + std::to_string(addr.port); | ||
| builder.AddListeningPort(listen_on, | ||
| grpc::InsecureServerCredentials()); | ||
| builder.RegisterService(&this->consensus_); | ||
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| auto server = builder.BuildAndStart(); | ||
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| if(blocking) { | ||
| server->Wait(); | ||
| } | ||
| } | ||
| } |
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| /** | ||
| * Copyright Soramitsu Co., Ltd. 2017 All Rights Reserved. | ||
| * http://soramitsu.co.jp | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| #ifndef IROHA_NETWORK_HPP | ||
| #define IROHA_NETWORK_HPP | ||
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| #include <grpc++/server_builder.h> | ||
| #include <consensus/consensus_service.hpp> | ||
| #include <consensus/messages.hpp> | ||
| #include <uvw.hpp> | ||
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| namespace network { | ||
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| /** | ||
| * This is an entity, which is listens host:port and emits received messages | ||
| * It emits all types of messages defined in consensus/messages.hpp | ||
| * GRPC server builder is also here. | ||
| */ | ||
| class Server : public uvw::Emitter<Server> { | ||
| public: | ||
| Server(std::shared_ptr<uvw::Loop> loop = uvw::Loop::getDefault()); | ||
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| void run_grpc(uvw::Addr addr, bool blocking = true); | ||
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| private: | ||
| std::shared_ptr<uvw::Loop> loop_; | ||
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| grpc::ServerBuilder builder; | ||
| consensus::ConsensusService consensus_; | ||
| }; | ||
| } | ||
| #endif // IROHA_NETWORK_HPP |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /** | ||
| * Copyright Soramitsu Co., Ltd. 2017 All Rights Reserved. | ||
| * http://soramitsu.co.jp | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| #include "connection_to.hpp" | ||
| #include "service.hpp" | ||
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| #ifndef SHORT_TIMER_LOW | ||
| // milliseconds | ||
| #define SHORT_TIMER_LOW 1000 | ||
| #endif | ||
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| #ifndef SHORT_TIMER_HIGH | ||
| // milliseconds | ||
| #define SHORT_TIMER_HIGH 2000 | ||
| #endif | ||
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| #ifndef LONG_TIMER_LOW | ||
| // milliseconds | ||
| #define LONG_TIMER_LOW (1000 * 60 * 1) | ||
| #endif | ||
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| #ifndef LONG_TIMER_HIGH | ||
| // milliseconds | ||
| #define LONG_TIMER_HIGH (1000 * 60 * 60) | ||
| #endif | ||
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| namespace peerservice { | ||
| std::random_device ConnectionTo::random_device; | ||
| // generator with random distribution | ||
| std::default_random_engine ConnectionTo::generator( | ||
| ConnectionTo::random_device()); | ||
| // uniform distribution for timer : from 1 sec to 2 secs | ||
| std::uniform_int_distribution<uint32_t> ConnectionTo::next_short_timer( | ||
| SHORT_TIMER_LOW, SHORT_TIMER_HIGH); | ||
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| // uniform distribution for timer: from 1 min to 1 hour | ||
| std::uniform_int_distribution<uint32_t> ConnectionTo::next_long_timer( | ||
| LONG_TIMER_LOW, LONG_TIMER_HIGH); // ms | ||
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| ConnectionTo::ConnectionTo(const Node &n, std::shared_ptr<uvw::Loop> loop) | ||
| : node(n) { | ||
| if (loop == nullptr) throw std::invalid_argument("loop is null"); | ||
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| this->online = false; | ||
| this->timer = loop->resource<uvw::TimerHandle>(); | ||
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| auto to = n.ip + ":" + std::to_string(n.port); | ||
| auto channel = grpc::CreateChannel(to, grpc::InsecureChannelCredentials()); | ||
| stub_ = PeerService::NewStub(channel); | ||
| } | ||
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| ConnectionTo::~ConnectionTo() { this->timer->close(); } | ||
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| void ConnectionTo::start_timer( | ||
| std::uniform_int_distribution<uint32_t> &distr) { | ||
| if (timer->active()) timer->stop(); | ||
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| auto timeout_ms = std::chrono::milliseconds(distr(ConnectionTo::generator)); | ||
| timer->start(timeout_ms, uvw::TimerHandle::Time{0}); | ||
| } | ||
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| void ConnectionTo::ping(Heartbeat *request) { | ||
| if (request == nullptr) throw std::invalid_argument("request is nullptr"); | ||
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| grpc::ClientContext context; | ||
| grpc::Status status; | ||
| Heartbeat answer; | ||
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| status = stub_->RequestHeartbeat(&context, *request, &answer); | ||
| printf("[my ledger is %d] ping %s... ", request->height(), | ||
| context.peer().c_str()); | ||
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| // TODO: validate heartbeat messages | ||
| if (status.ok()) { | ||
| // peer is alive | ||
| this->make_online(); | ||
| publish(answer); // publish event to uvw | ||
|
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| } else { | ||
| if (status.error_code() == grpc::StatusCode::CANCELLED) { | ||
| // our heartbeat is invalid (this->myHeartbeat) | ||
| // TODO handle this | ||
| throw std::invalid_argument("our heartbeat is invalid"); | ||
| } | ||
|
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| // peer is dead | ||
| this->make_offline(); | ||
| } | ||
| } | ||
|
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| void ConnectionTo::make_online() noexcept { | ||
| // TODO: change to logger | ||
| printf("alive\n"); | ||
| this->online = true; | ||
| this->start_timer(next_short_timer); | ||
| } | ||
|
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| void ConnectionTo::make_offline() noexcept { | ||
| // TODO: change to logger | ||
| printf("dead\n"); | ||
| this->online = false; | ||
| this->start_timer(next_long_timer); | ||
| } | ||
| } |
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