github.com/jlmucb/cloudproxy@v0.0.0-20170830161738-b5aa0b619bc4/go/util/messages.go (about)

     1  // Copyright (c) 2014, Kevin Walsh.  All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package util
    16  
    17  import (
    18  	"github.com/golang/protobuf/proto"
    19  )
    20  
    21  // A MessageReader is a stream from which protobuf messages can be read.
    22  type MessageReader interface {
    23  	ReadMessage(m proto.Message) error
    24  }
    25  
    26  // A MessageWriter is a stream to which protobuf messages can be written.
    27  type MessageWriter interface {
    28  	WriteMessage(m proto.Message) error
    29  }
    30  
    31  // A StringReader is a stream from which strings can be read.
    32  type StringReader interface {
    33  	ReadString() (string, error)
    34  }
    35  
    36  // A StringWriter is a stream to which strings can be written.
    37  type StringWriter interface {
    38  	WriteString(s string) (n int, err error)
    39  }