Source: util.go in package google.golang.org/grpc/internal/credentials

Source File
	util.go

Belonging Package
	google.golang.org/grpc/internal/credentials

* * Copyright 2020 gRPC authors. * * 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 credentials

import "crypto/tls"

const alpnProtoStrH2 = "h2"

AppendH2ToNextProtos appends h2 to next protos.

func AppendH2ToNextProtos(ps []string) []string {
	for _, p := range ps {
		if p == alpnProtoStrH2 {
			return ps
		}
	}
	ret := make([]string, 0, len(ps)+1)
	ret = append(ret, ps...)
	return append(ret, alpnProtoStrH2)
}

CloneTLSConfig returns a shallow clone of the exported fields of cfg, ignoring the unexported sync.Once, which contains a mutex and must not be copied. If cfg is nil, a new zero tls.Config is returned. TODO: inline this function if possible.

func CloneTLSConfig(cfg *tls.Config) *tls.Config {
	if cfg == nil {
		return &tls.Config{}
	}

	return cfg.Clone()


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