mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-25 06:20:24 +00:00
113 lines
2.5 KiB
Go
113 lines
2.5 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
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.
|
|
*/
|
|
|
|
package csicommon
|
|
|
|
import (
|
|
"net"
|
|
"os"
|
|
"sync"
|
|
|
|
"github.com/golang/glog"
|
|
"google.golang.org/grpc"
|
|
|
|
"github.com/container-storage-interface/spec/lib/go/csi/v0"
|
|
)
|
|
|
|
// Defines Non blocking GRPC server interfaces
|
|
type NonBlockingGRPCServer interface {
|
|
// Start services at the endpoint
|
|
Start(endpoint string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer)
|
|
// Waits for the service to stop
|
|
Wait()
|
|
// Stops the service gracefully
|
|
Stop()
|
|
// Stops the service forcefully
|
|
ForceStop()
|
|
}
|
|
|
|
func NewNonBlockingGRPCServer() NonBlockingGRPCServer {
|
|
return &nonBlockingGRPCServer{}
|
|
}
|
|
|
|
// NonBlocking server
|
|
type nonBlockingGRPCServer struct {
|
|
wg sync.WaitGroup
|
|
server *grpc.Server
|
|
}
|
|
|
|
func (s *nonBlockingGRPCServer) Start(endpoint string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer) {
|
|
|
|
s.wg.Add(1)
|
|
|
|
go s.serve(endpoint, ids, cs, ns)
|
|
|
|
return
|
|
}
|
|
|
|
func (s *nonBlockingGRPCServer) Wait() {
|
|
s.wg.Wait()
|
|
}
|
|
|
|
func (s *nonBlockingGRPCServer) Stop() {
|
|
s.server.GracefulStop()
|
|
}
|
|
|
|
func (s *nonBlockingGRPCServer) ForceStop() {
|
|
s.server.Stop()
|
|
}
|
|
|
|
func (s *nonBlockingGRPCServer) serve(endpoint string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer) {
|
|
|
|
proto, addr, err := ParseEndpoint(endpoint)
|
|
if err != nil {
|
|
glog.Fatal(err.Error())
|
|
}
|
|
|
|
if proto == "unix" {
|
|
addr = "/" + addr
|
|
if err := os.Remove(addr); err != nil && !os.IsNotExist(err) {
|
|
glog.Fatalf("Failed to remove %s, error: %s", addr, err.Error())
|
|
}
|
|
}
|
|
|
|
listener, err := net.Listen(proto, addr)
|
|
if err != nil {
|
|
glog.Fatalf("Failed to listen: %v", err)
|
|
}
|
|
|
|
opts := []grpc.ServerOption{
|
|
grpc.UnaryInterceptor(logGRPC),
|
|
}
|
|
server := grpc.NewServer(opts...)
|
|
s.server = server
|
|
|
|
if ids != nil {
|
|
csi.RegisterIdentityServer(server, ids)
|
|
}
|
|
if cs != nil {
|
|
csi.RegisterControllerServer(server, cs)
|
|
}
|
|
if ns != nil {
|
|
csi.RegisterNodeServer(server, ns)
|
|
}
|
|
|
|
glog.Infof("Listening for connections on address: %#v", listener.Addr())
|
|
|
|
server.Serve(listener)
|
|
|
|
}
|