112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
/*
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* Copyright 2017 The Cartographer Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "cartographer_grpc/framework/rpc.h"
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#include "cartographer/common/make_unique.h"
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#include "glog/logging.h"
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namespace cartographer_grpc {
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namespace framework {
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Rpc::Rpc(int method_index,
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::grpc::ServerCompletionQueue* server_completion_queue,
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const RpcHandlerInfo& rpc_handler_info, Service* service)
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: method_index_(method_index),
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server_completion_queue_(server_completion_queue),
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rpc_handler_info_(rpc_handler_info),
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new_connection_state_{State::NEW_CONNECTION, service, this},
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read_state_{State::READ, service, this},
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write_state_{State::WRITE, service, this},
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done_state_{State::DONE, service, this} {
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InitializeResponders(rpc_handler_info_.rpc_type);
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}
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::grpc::ServerCompletionQueue* Rpc::server_completion_queue() {
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return server_completion_queue_;
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}
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::grpc::internal::RpcMethod::RpcType Rpc::rpc_type() const {
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return rpc_handler_info_.rpc_type;
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}
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::grpc::internal::ServerAsyncStreamingInterface* Rpc::streaming_interface() {
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switch (rpc_handler_info_.rpc_type) {
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case ::grpc::internal::RpcMethod::CLIENT_STREAMING:
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return server_async_reader_.get();
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default:
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LOG(FATAL) << "RPC type not implemented.";
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}
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LOG(FATAL) << "Never reached.";
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}
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Rpc::RpcState* Rpc::GetRpcState(State state) {
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switch (state) {
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case State::NEW_CONNECTION:
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return &new_connection_state_;
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case State::READ:
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return &read_state_;
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case State::WRITE:
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return &write_state_;
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case State::DONE:
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return &done_state_;
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}
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LOG(FATAL) << "Never reached.";
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}
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ActiveRpcs::ActiveRpcs() : lock_() {}
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void Rpc::InitializeResponders(::grpc::internal::RpcMethod::RpcType rpc_type) {
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switch (rpc_type) {
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case ::grpc::internal::RpcMethod::CLIENT_STREAMING:
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server_async_reader_ =
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cartographer::common::make_unique<::grpc::ServerAsyncReader<
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google::protobuf::Message, google::protobuf::Message>>(
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&server_context_);
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break;
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default:
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LOG(FATAL) << "RPC type not implemented.";
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}
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}
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ActiveRpcs::~ActiveRpcs() {
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cartographer::common::MutexLocker locker(&lock_);
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if (!rpcs_.empty()) {
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LOG(FATAL) << "RPCs still in flight!";
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}
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}
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Rpc* ActiveRpcs::Add(std::unique_ptr<Rpc> rpc) {
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cartographer::common::MutexLocker locker(&lock_);
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const auto result = rpcs_.emplace(rpc.release());
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CHECK(result.second) << "RPC already active.";
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return *result.first;
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}
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bool ActiveRpcs::Remove(Rpc* rpc) {
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cartographer::common::MutexLocker locker(&lock_);
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auto it = rpcs_.find(rpc);
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if (it != rpcs_.end()) {
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delete rpc;
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rpcs_.erase(it);
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return true;
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}
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return false;
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}
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} // namespace framework
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} // namespace cartographer_grpc
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