github.com/codingfuture/orig-energi3@v0.8.4/swarm/storage/feed/binaryserializer.go (about)

     1  // Copyright 2018 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package feed
    18  
    19  import "github.com/ethereum/go-ethereum/common/hexutil"
    20  
    21  type binarySerializer interface {
    22  	binaryPut(serializedData []byte) error
    23  	binaryLength() int
    24  	binaryGet(serializedData []byte) error
    25  }
    26  
    27  // Values interface represents a string key-value store
    28  // useful for building query strings
    29  type Values interface {
    30  	Get(key string) string
    31  	Set(key, value string)
    32  }
    33  
    34  type valueSerializer interface {
    35  	FromValues(values Values) error
    36  	AppendValues(values Values)
    37  }
    38  
    39  // Hex serializes the structure and converts it to a hex string
    40  func Hex(bin binarySerializer) string {
    41  	b := make([]byte, bin.binaryLength())
    42  	bin.binaryPut(b)
    43  	return hexutil.Encode(b)
    44  }