125 lines
3.6 KiB
Go
125 lines
3.6 KiB
Go
/*******************************************************************************
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* Copyright 2017 Dell Inc.
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* Copyright (c) 2019 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*******************************************************************************/
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package rpcclient
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import (
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"github.com/winc-link/hummingbird/internal/pkg/logger"
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"google.golang.org/grpc"
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"google.golang.org/grpc/backoff"
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"google.golang.org/grpc/credentials"
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"google.golang.org/grpc/keepalive"
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"google.golang.org/protobuf/types/known/emptypb"
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"os"
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"path/filepath"
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"runtime"
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"time"
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)
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var Empty = &emptypb.Empty{}
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// grpc内部对client的ping server的周期限制为最小10s
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var kacp = keepalive.ClientParameters{
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Time: 10 * time.Second, // send pings every 10 seconds if there is no activity
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Timeout: 3 * time.Second, // wait 3 second for ping ack before considering the connection dead
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PermitWithoutStream: true, // send pings even without active streams
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}
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var ConnParams = grpc.ConnectParams{
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Backoff: backoff.Config{
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BaseDelay: time.Second * 1.0,
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Multiplier: 1.0,
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Jitter: 0,
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MaxDelay: 1.0 * time.Second,
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},
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MinConnectTimeout: time.Second * 1,
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}
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var basepath string
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func init() {
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_, currentFile, _, _ := runtime.Caller(0)
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basepath = filepath.Dir(currentFile)
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}
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// Path returns the absolute path the given relative file or directory path,
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// relative to the google.golang.org/grpc/examples/data directory in the
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// user's GOPATH. If rel is already absolute, it is returned unmodified.
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func path(rel string) string {
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if filepath.IsAbs(rel) {
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return rel
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}
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return filepath.Join(basepath, rel)
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}
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const (
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CLIENT_RPC_LOG_ENABLE = "CLIENT_RPC_LOG_ENABLE"
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)
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func dialWithLog(address string, withTLS bool, certFile, serverName string, lc logger.LoggingClient) (*grpc.ClientConn, error) {
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var (
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err error
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creds credentials.TransportCredentials
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conn *grpc.ClientConn
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)
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var clientRpcLog = os.Getenv(CLIENT_RPC_LOG_ENABLE)
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if withTLS {
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if creds, err = credentials.NewClientTLSFromFile(path(certFile), serverName); err != nil {
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return nil, err
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}
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if clientRpcLog != "" {
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conn, err = grpc.Dial(address,
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grpc.WithTransportCredentials(creds),
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grpc.WithBlock(),
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grpc.WithKeepaliveParams(kacp),
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withClientLoggerInterceptor(lc),
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grpc.WithConnectParams(ConnParams),
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withEdgeErrorInterceptor(),
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)
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} else {
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conn, err = grpc.Dial(address,
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grpc.WithTransportCredentials(creds),
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grpc.WithBlock(),
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grpc.WithKeepaliveParams(kacp),
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grpc.WithConnectParams(ConnParams),
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withEdgeErrorInterceptor(),
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)
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}
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if err != nil {
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return nil, err
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}
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} else {
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if clientRpcLog != "" {
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conn, err = grpc.Dial(address,
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grpc.WithInsecure(), /*grpc.WithBlock(),*/
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grpc.WithKeepaliveParams(kacp),
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withClientLoggerInterceptor(lc),
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grpc.WithConnectParams(ConnParams),
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withEdgeErrorInterceptor(),
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)
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} else {
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conn, err = grpc.Dial(address,
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grpc.WithInsecure(), /*grpc.WithBlock(),*/
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grpc.WithKeepaliveParams(kacp),
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grpc.WithConnectParams(ConnParams),
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)
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}
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if err != nil {
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return nil, err
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}
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}
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return conn, nil
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}
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