libtorch-runtime/grpc/grpc_server_main.cc

// Copyright (c) 2021 Ximalaya Speech Team (Xiang Lyu)
//
// 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.

#include <grpcpp/ext/proto_server_reflection_plugin.h>
#include <grpcpp/grpcpp.h>
#include <grpcpp/health_check_service_interface.h>
#include "gflags/gflags.h"
#include "decoder/params.h"
#include "grpc/grpc_server.h"

DEFINE_int32(port, 10086, "grpc listening port");
DEFINE_int32(workers, 4, "grpc num workers");

using grpc::Server;
using grpc::ServerBuilder;

int main(int argc, char* argv[]) {
    gflags::ParseCommandLineFlags(&argc, &argv, false);
    google::InitGoogleLogging(argv[0]);

    auto decode_config = wenet::InitDecodeOptionsFromFlags();
    auto feature_config = wenet::InitFeaturePipelineConfigFromFlags();
    auto decode_resource = wenet::InitDecodeResourceFromFlags();

    wenet::GrpcServer service(feature_config, decode_config, decode_resource);
    grpc::EnableDefaultHealthCheckService(true);
    grpc::reflection::InitProtoReflectionServerBuilderPlugin();
    ServerBuilder builder;
    std::string address("0.0.0.0:" + std::to_string(FLAGS_port));
    builder.AddListeningPort(address, grpc::InsecureServerCredentials());
    builder.RegisterService(&service);
    builder.SetSyncServerOption(ServerBuilder::SyncServerOption::NUM_CQS,
                              FLAGS_workers);
    std::unique_ptr<Server> server(builder.BuildAndStart());
    LOG(INFO) << "Listening at port " << FLAGS_port;
    server->Wait();
    google::ShutdownGoogleLogging();
    return 0;
}