| /* |
| * Copyright 2018-present Open Networking Foundation |
| |
| * 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 main |
| |
| import ( |
| "flag" |
| "github.com/opencord/bbsim/api/bbsim" |
| "github.com/opencord/bbsim/internal/bbsim/devices" |
| log "github.com/sirupsen/logrus" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/reflection" |
| "net" |
| "os" |
| "runtime/pprof" |
| "sync" |
| ) |
| |
| func getOpts() *CliOptions { |
| |
| olt_id := flag.Int("olt_id", 0, "Number of OLT devices to be emulated (default is 1)") |
| nni := flag.Int("nni", 1, "Number of NNI ports per OLT device to be emulated (default is 1)") |
| pon := flag.Int("pon", 1, "Number of PON ports per OLT device to be emulated (default is 1)") |
| onu := flag.Int("onu", 1, "Number of ONU devices per PON port to be emulated (default is 1)") |
| profileCpu := flag.String("cpuprofile", "", "write cpu profile to file") |
| |
| flag.Parse() |
| |
| o := new(CliOptions) |
| |
| o.OltID = int(*olt_id) |
| o.NumNniPerOlt = int(*nni) |
| o.NumPonPerOlt = int(*pon) |
| o.NumOnuPerPon = int(*onu) |
| o.profileCpu = profileCpu |
| |
| return o |
| } |
| |
| func startApiServer(channel chan bool, group *sync.WaitGroup) { |
| // TODO make configurable |
| address := "0.0.0.0:50070" |
| log.Debugf("APIServer Listening on: %v", address) |
| lis, err := net.Listen("tcp", address) |
| if err != nil { |
| log.Fatalf("APIServer failed to listen: %v", err) |
| } |
| grpcServer := grpc.NewServer() |
| bbsim.RegisterBBSimServer(grpcServer, BBSimServer{}) |
| |
| reflection.Register(grpcServer) |
| |
| wg := sync.WaitGroup{} |
| wg.Add(1) |
| |
| go grpcServer.Serve(lis) |
| |
| for { |
| _, ok := <- channel |
| if !ok { |
| // if the olt channel is closed, stop the gRPC server |
| log.Warnf("Stopping API gRPC server") |
| grpcServer.Stop() |
| wg.Done() |
| break |
| } |
| } |
| |
| wg.Wait() |
| group.Done() |
| return |
| } |
| |
| func init() { |
| // TODO make configurable both via CLI and via ENV (for the tests) |
| log.SetLevel(log.DebugLevel) |
| //log.SetLevel(log.TraceLevel) |
| //log.SetReportCaller(true) |
| } |
| |
| func main() { |
| options := getOpts() |
| |
| if *options.profileCpu != "" { |
| // start profiling |
| log.Infof("Creating profile file at: %s", *options.profileCpu) |
| f, err := os.Create(*options.profileCpu) |
| if err != nil { |
| log.Fatal(err) |
| } |
| pprof.StartCPUProfile(f) |
| } |
| |
| log.WithFields(log.Fields{ |
| "OltID": options.OltID, |
| "NumNniPerOlt": options.NumNniPerOlt, |
| "NumPonPerOlt": options.NumPonPerOlt, |
| "NumOnuPerPon": options.NumOnuPerPon, |
| }).Info("BroadBand Simulator is on") |
| |
| // control channels, they are only closed when the goroutine needs to be terminated |
| oltDoneChannel := make(chan bool) |
| apiDoneChannel := make(chan bool) |
| |
| wg := sync.WaitGroup{} |
| wg.Add(2) |
| |
| |
| go devices.CreateOLT(options.OltID, options.NumNniPerOlt, options.NumPonPerOlt, options.NumOnuPerPon, &oltDoneChannel, &apiDoneChannel, &wg) |
| log.Debugf("Created OLT with id: %d", options.OltID) |
| go startApiServer(apiDoneChannel, &wg) |
| log.Debugf("Started APIService") |
| |
| wg.Wait() |
| |
| defer func() { |
| log.Info("BroadBand Simulator is off") |
| if *options.profileCpu != "" { |
| log.Info("Stopping profiler") |
| pprof.StopCPUProfile() |
| } |
| }() |
| } |