github.com/hxx258456/ccgo@v0.0.5-0.20230213014102-48b35f46f66f/grpc/internal/credentials/credentials.go (about)

     1  /*
     2   * Copyright 2021 gRPC authors.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package credentials
    18  
    19  import (
    20  	"context"
    21  )
    22  
    23  // requestInfoKey is a struct to be used as the key to store RequestInfo in a
    24  // context.
    25  type requestInfoKey struct{}
    26  
    27  // NewRequestInfoContext creates a context with ri.
    28  func NewRequestInfoContext(ctx context.Context, ri interface{}) context.Context {
    29  	return context.WithValue(ctx, requestInfoKey{}, ri)
    30  }
    31  
    32  // RequestInfoFromContext extracts the RequestInfo from ctx.
    33  func RequestInfoFromContext(ctx context.Context) interface{} {
    34  	return ctx.Value(requestInfoKey{})
    35  }
    36  
    37  // clientHandshakeInfoKey is a struct used as the key to store
    38  // ClientHandshakeInfo in a context.
    39  type clientHandshakeInfoKey struct{}
    40  
    41  // ClientHandshakeInfoFromContext extracts the ClientHandshakeInfo from ctx.
    42  func ClientHandshakeInfoFromContext(ctx context.Context) interface{} {
    43  	return ctx.Value(clientHandshakeInfoKey{})
    44  }
    45  
    46  // NewClientHandshakeInfoContext creates a context with chi.
    47  func NewClientHandshakeInfoContext(ctx context.Context, chi interface{}) context.Context {
    48  	return context.WithValue(ctx, clientHandshakeInfoKey{}, chi)
    49  }