ceph-csi/vendor/google.golang.org/grpc/internal/grpcutil/metadata.go
Madhu Rajanna 342d282780 rebase: add kube-storage/replication to go.mod
add dependent kube-storage/replication package
to the vendor.

update grpc to latest release v1.35.0.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2021-03-16 13:06:44 +00:00

41 lines
1.2 KiB
Go

/*
*
* 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 grpcutil
import (
"context"
"google.golang.org/grpc/metadata"
)
type mdExtraKey struct{}
// WithExtraMetadata creates a new context with incoming md attached.
func WithExtraMetadata(ctx context.Context, md metadata.MD) context.Context {
return context.WithValue(ctx, mdExtraKey{}, md)
}
// ExtraMetadata returns the incoming metadata in ctx if it exists. The
// returned MD should not be modified. Writing to it may cause races.
// Modification should be made to copies of the returned MD.
func ExtraMetadata(ctx context.Context) (md metadata.MD, ok bool) {
md, ok = ctx.Value(mdExtraKey{}).(metadata.MD)
return
}