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server.go
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server.go
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// Copyright 2022 Lingfei Kong <colin404@foxmail.com>. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file. The original repo for
// this file is https://github.com/superproj/onex.
//
package cacheserver
import (
"net"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
pb "github.com/superproj/onex/pkg/api/cacheserver/v1"
"github.com/superproj/onex/pkg/log"
genericoptions "github.com/superproj/onex/pkg/options"
)
type Server interface {
RunOrDie()
GracefulStop()
}
type GRPCServer struct {
srv *grpc.Server
opts *genericoptions.GRPCOptions
}
func NewGRPCServer(
grpcOptions *genericoptions.GRPCOptions,
tlsOptions *genericoptions.TLSOptions,
srv pb.CacheServerServer,
) (*GRPCServer, error) {
dialOptions := []grpc.ServerOption{}
if tlsOptions != nil && tlsOptions.UseTLS {
tlsConfig, err := tlsOptions.TLSConfig()
if err != nil {
return nil, err
}
dialOptions = append(dialOptions, grpc.Creds(credentials.NewTLS(tlsConfig)))
}
grpcsrv := grpc.NewServer(dialOptions...)
pb.RegisterCacheServerServer(grpcsrv, srv)
return &GRPCServer{srv: grpcsrv, opts: grpcOptions}, nil
}
func (s *GRPCServer) RunOrDie() {
lis, err := net.Listen("tcp", s.opts.Addr)
if err != nil {
log.Fatalw("Failed to listen", "err", err)
}
log.Infow("Start to listening the incoming requests on grpc address", "addr", s.opts.Addr)
if err := s.srv.Serve(lis); err != nil {
log.Fatalw(err.Error())
}
}
func (s *GRPCServer) GracefulStop() {
log.Infof("Gracefully stop grpc server")
s.srv.GracefulStop()
}