| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // 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 grpcutil |
| |
| import ( |
| "android.googlesource.com/platform/tools/gpu/framework/log" |
| "github.com/gogo/protobuf/codec" |
| "google.golang.org/grpc" |
| ) |
| |
| // ClientTask is invoked with an open grpc connection by Client. |
| type ClientTask func(log.Context, *grpc.ClientConn) error |
| |
| // Dial connects to a grpc server, and returns the connection. |
| // It also installs the standard options we normally use. |
| func Dial(ctx log.Context, target string, options ...grpc.DialOption) (*grpc.ClientConn, error) { |
| options = append([]grpc.DialOption{ |
| grpc.WithCodec(codec.New(1024)), |
| grpc.WithCompressor(grpc.NewGZIPCompressor()), |
| grpc.WithDecompressor(grpc.NewGZIPDecompressor()), |
| }, options...) |
| return grpc.Dial(target, options...) |
| } |
| |
| // Client dials a grpc server, and runs the task with the connection, and closes the connection |
| // again before returning. |
| // It also installs the standard options we normally use. |
| func Client(ctx log.Context, target string, task ClientTask, options ...grpc.DialOption) error { |
| conn, err := Dial(ctx, target, options...) |
| if err != nil { |
| return err |
| } |
| defer conn.Close() |
| return task(ctx, conn) |
| } |