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client.go
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client.go
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// Copyright 2020 Douyu
//
// 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 grpc
import (
"context"
"time"
"github.com/douyu/jupiter/pkg/ecode"
"github.com/douyu/jupiter/pkg/xlog"
"google.golang.org/grpc"
)
func newGRPCClient(config *Config) *grpc.ClientConn {
var ctx = context.Background()
var dialOptions = config.dialOptions
logger := config.logger.With(
xlog.FieldMod("client.grpc"),
xlog.FieldAddr(config.Address),
)
// 默认配置使用block
if config.Block {
if config.DialTimeout > time.Duration(0) {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ctx, config.DialTimeout)
defer cancel()
}
dialOptions = append(dialOptions, grpc.WithBlock())
}
if config.KeepAlive != nil {
dialOptions = append(dialOptions, grpc.WithKeepaliveParams(*config.KeepAlive))
}
dialOptions = append(dialOptions, grpc.WithBalancerName(config.BalancerName))
cc, err := grpc.DialContext(ctx, config.Address, dialOptions...)
if err != nil {
if config.OnDialError == "panic" {
logger.Panic("dial grpc server", xlog.FieldErrKind(ecode.ErrKindRequestErr), xlog.FieldErr(err))
} else {
logger.Error("dial grpc server", xlog.FieldErrKind(ecode.ErrKindRequestErr), xlog.FieldErr(err))
}
}
logger.Info("start grpc client")
return cc
}