| /* |
| * |
| * Copyright 2016, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| package main |
| |
| import ( |
| "flag" |
| "fmt" |
| "io" |
| "net" |
| "net/http" |
| _ "net/http/pprof" |
| "runtime" |
| "strconv" |
| "time" |
| |
| "golang.org/x/net/context" |
| "google.golang.org/grpc" |
| testpb "google.golang.org/grpc/benchmark/grpc_testing" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/grpclog" |
| ) |
| |
| var ( |
| driverPort = flag.Int("driver_port", 10000, "port for communication with driver") |
| serverPort = flag.Int("server_port", 0, "port for benchmark server if not specified by server config message") |
| pprofPort = flag.Int("pprof_port", -1, "Port for pprof debug server to listen on. Pprof server doesn't start if unset") |
| blockProfRate = flag.Int("block_prof_rate", 0, "fraction of goroutine blocking events to report in blocking profile") |
| ) |
| |
| type byteBufCodec struct { |
| } |
| |
| func (byteBufCodec) Marshal(v interface{}) ([]byte, error) { |
| b, ok := v.(*[]byte) |
| if !ok { |
| return nil, fmt.Errorf("failed to marshal: %v is not type of *[]byte", v) |
| } |
| return *b, nil |
| } |
| |
| func (byteBufCodec) Unmarshal(data []byte, v interface{}) error { |
| b, ok := v.(*[]byte) |
| if !ok { |
| return fmt.Errorf("failed to marshal: %v is not type of *[]byte", v) |
| } |
| *b = data |
| return nil |
| } |
| |
| func (byteBufCodec) String() string { |
| return "bytebuffer" |
| } |
| |
| // workerServer implements WorkerService rpc handlers. |
| // It can create benchmarkServer or benchmarkClient on demand. |
| type workerServer struct { |
| stop chan<- bool |
| serverPort int |
| } |
| |
| func (s *workerServer) RunServer(stream testpb.WorkerService_RunServerServer) error { |
| var bs *benchmarkServer |
| defer func() { |
| // Close benchmark server when stream ends. |
| grpclog.Printf("closing benchmark server") |
| if bs != nil { |
| bs.closeFunc() |
| } |
| }() |
| for { |
| in, err := stream.Recv() |
| if err == io.EOF { |
| return nil |
| } |
| if err != nil { |
| return err |
| } |
| |
| var out *testpb.ServerStatus |
| switch argtype := in.Argtype.(type) { |
| case *testpb.ServerArgs_Setup: |
| grpclog.Printf("server setup received:") |
| if bs != nil { |
| grpclog.Printf("server setup received when server already exists, closing the existing server") |
| bs.closeFunc() |
| } |
| bs, err = startBenchmarkServer(argtype.Setup, s.serverPort) |
| if err != nil { |
| return err |
| } |
| out = &testpb.ServerStatus{ |
| Stats: bs.getStats(false), |
| Port: int32(bs.port), |
| Cores: int32(bs.cores), |
| } |
| |
| case *testpb.ServerArgs_Mark: |
| grpclog.Printf("server mark received:") |
| grpclog.Printf(" - %v", argtype) |
| if bs == nil { |
| return grpc.Errorf(codes.InvalidArgument, "server does not exist when mark received") |
| } |
| out = &testpb.ServerStatus{ |
| Stats: bs.getStats(argtype.Mark.Reset_), |
| Port: int32(bs.port), |
| Cores: int32(bs.cores), |
| } |
| } |
| |
| if err := stream.Send(out); err != nil { |
| return err |
| } |
| } |
| } |
| |
| func (s *workerServer) RunClient(stream testpb.WorkerService_RunClientServer) error { |
| var bc *benchmarkClient |
| defer func() { |
| // Shut down benchmark client when stream ends. |
| grpclog.Printf("shuting down benchmark client") |
| if bc != nil { |
| bc.shutdown() |
| } |
| }() |
| for { |
| in, err := stream.Recv() |
| if err == io.EOF { |
| return nil |
| } |
| if err != nil { |
| return err |
| } |
| |
| var out *testpb.ClientStatus |
| switch t := in.Argtype.(type) { |
| case *testpb.ClientArgs_Setup: |
| grpclog.Printf("client setup received:") |
| if bc != nil { |
| grpclog.Printf("client setup received when client already exists, shuting down the existing client") |
| bc.shutdown() |
| } |
| bc, err = startBenchmarkClient(t.Setup) |
| if err != nil { |
| return err |
| } |
| out = &testpb.ClientStatus{ |
| Stats: bc.getStats(false), |
| } |
| |
| case *testpb.ClientArgs_Mark: |
| grpclog.Printf("client mark received:") |
| grpclog.Printf(" - %v", t) |
| if bc == nil { |
| return grpc.Errorf(codes.InvalidArgument, "client does not exist when mark received") |
| } |
| out = &testpb.ClientStatus{ |
| Stats: bc.getStats(t.Mark.Reset_), |
| } |
| } |
| |
| if err := stream.Send(out); err != nil { |
| return err |
| } |
| } |
| } |
| |
| func (s *workerServer) CoreCount(ctx context.Context, in *testpb.CoreRequest) (*testpb.CoreResponse, error) { |
| grpclog.Printf("core count: %v", runtime.NumCPU()) |
| return &testpb.CoreResponse{Cores: int32(runtime.NumCPU())}, nil |
| } |
| |
| func (s *workerServer) QuitWorker(ctx context.Context, in *testpb.Void) (*testpb.Void, error) { |
| grpclog.Printf("quiting worker") |
| s.stop <- true |
| return &testpb.Void{}, nil |
| } |
| |
| func main() { |
| grpc.EnableTracing = false |
| |
| flag.Parse() |
| lis, err := net.Listen("tcp", ":"+strconv.Itoa(*driverPort)) |
| if err != nil { |
| grpclog.Fatalf("failed to listen: %v", err) |
| } |
| grpclog.Printf("worker listening at port %v", *driverPort) |
| |
| s := grpc.NewServer() |
| stop := make(chan bool) |
| testpb.RegisterWorkerServiceServer(s, &workerServer{ |
| stop: stop, |
| serverPort: *serverPort, |
| }) |
| |
| go func() { |
| <-stop |
| // Wait for 1 second before stopping the server to make sure the return value of QuitWorker is sent to client. |
| // TODO revise this once server graceful stop is supported in gRPC. |
| time.Sleep(time.Second) |
| s.Stop() |
| }() |
| |
| runtime.SetBlockProfileRate(*blockProfRate) |
| |
| if *pprofPort >= 0 { |
| go func() { |
| grpclog.Println("Starting pprof server on port " + strconv.Itoa(*pprofPort)) |
| grpclog.Println(http.ListenAndServe("localhost:"+strconv.Itoa(*pprofPort), nil)) |
| }() |
| } |
| |
| s.Serve(lis) |
| } |