/
grpc_rpc_server.go
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/
grpc_rpc_server.go
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// Copyright (c) TFG Co. All Rights Reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package cluster
import (
"fmt"
"net"
"google.golang.org/grpc"
"github.com/BaalDev/pitaya/v2/config"
"github.com/BaalDev/pitaya/v2/metrics"
"github.com/BaalDev/pitaya/v2/protos"
)
// GRPCServer rpc server struct
type GRPCServer struct {
server *Server
port int
metricsReporters []metrics.Reporter
grpcSv *grpc.Server
pitayaServer protos.PitayaServer
}
// NewGRPCServer constructor
func NewGRPCServer(config config.GRPCServerConfig, server *Server, metricsReporters []metrics.Reporter) (*GRPCServer, error) {
gs := &GRPCServer{
port: config.Port,
server: server,
metricsReporters: metricsReporters,
}
return gs, nil
}
// Init inits grpc rpc server
func (gs *GRPCServer) Init() error {
port := gs.port
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
if err != nil {
return err
}
gs.grpcSv = grpc.NewServer()
protos.RegisterPitayaServer(gs.grpcSv, gs.pitayaServer)
go gs.grpcSv.Serve(lis)
return nil
}
// SetPitayaServer sets the pitaya server
func (gs *GRPCServer) SetPitayaServer(ps protos.PitayaServer) {
gs.pitayaServer = ps
}
// AfterInit runs after initialization
func (gs *GRPCServer) AfterInit() {}
// BeforeShutdown runs before shutdown
func (gs *GRPCServer) BeforeShutdown() {}
// Shutdown stops grpc rpc server
func (gs *GRPCServer) Shutdown() error {
// graceful: stops the server from accepting new connections and RPCs and
// blocks until all the pending RPCs are finished.
// source: https://godoc.org/google.golang.org/grpc#Server.GracefulStop
gs.grpcSv.GracefulStop()
return nil
}