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/*
*
* Copyright 2014 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 peer defines various peer information associated with RPCs and
// corresponding utils.
package peer
import (
"net"
"golang.org/x/net/context"
"google.golang.org/grpc/credentials"
)
// Peer contains the information of the peer for an RPC, such as the address
// and authentication information.
type Peer struct {
// Addr is the peer address.
Addr net.Addr
// AuthInfo is the authentication information of the transport.
// It is nil if there is no transport security being used.
AuthInfo credentials.AuthInfo
}
type peerKey struct{}
// NewContext creates a new context with peer information attached.
func NewContext(ctx context.Context, p *Peer) context.Context {
return context.WithValue(ctx, peerKey{}, p)
}
// FromContext returns the peer information in ctx if it exists.
func FromContext(ctx context.Context) (p *Peer, ok bool) {
p, ok = ctx.Value(peerKey{}).(*Peer)
return
}
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