1 files changed, 0 insertions, 134 deletions
diff --git a/swarm/storage/feed/update.go b/swarm/storage/feed/update.go
deleted file mode 100644
index 21c004ca4..000000000
--- a/swarm/storage/feed/update.go
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright 2018 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package feed
-
-import (
-	"fmt"
-	"strconv"
-
-	"github.com/ethereum/go-ethereum/swarm/chunk"
-)
-
-// ProtocolVersion defines the current version of the protocol that will be included in each update message
-const ProtocolVersion uint8 = 0
-
-const headerLength = 8
-
-// Header defines a update message header including a protocol version byte
-type Header struct {
-	Version uint8                   // Protocol version
-	Padding [headerLength - 1]uint8 // reserved for future use
-}
-
-// Update encapsulates the information sent as part of a feed update
-type Update struct {
-	Header Header //
-	ID            // Feed Update identifying information
-	data   []byte // actual data payload
-}
-
-const minimumUpdateDataLength = idLength + headerLength + 1
-
-//MaxUpdateDataLength indicates the maximum payload size for a feed update
-const MaxUpdateDataLength = chunk.DefaultSize - signatureLength - idLength - headerLength
-
-// binaryPut serializes the feed update information into the given slice
-func (r *Update) binaryPut(serializedData []byte) error {
-	datalength := len(r.data)
-	if datalength == 0 {
-		return NewError(ErrInvalidValue, "a feed update must contain data")
-	}
-
-	if datalength > MaxUpdateDataLength {
-		return NewErrorf(ErrInvalidValue, "feed update data is too big (length=%d). Max length=%d", datalength, MaxUpdateDataLength)
-	}
-
-	if len(serializedData) != r.binaryLength() {
-		return NewErrorf(ErrInvalidValue, "slice passed to putBinary must be of exact size. Expected %d bytes", r.binaryLength())
-	}
-
-	var cursor int
-	// serialize Header
-	serializedData[cursor] = r.Header.Version
-	copy(serializedData[cursor+1:headerLength], r.Header.Padding[:headerLength-1])
-	cursor += headerLength
-
-	// serialize ID
-	if err := r.ID.binaryPut(serializedData[cursor : cursor+idLength]); err != nil {
-		return err
-	}
-	cursor += idLength
-
-	// add the data
-	copy(serializedData[cursor:], r.data)
-	cursor += datalength
-
-	return nil
-}
-
-// binaryLength returns the expected number of bytes this structure will take to encode
-func (r *Update) binaryLength() int {
-	return idLength + headerLength + len(r.data)
-}
-
-// binaryGet populates this instance from the information contained in the passed byte slice
-func (r *Update) binaryGet(serializedData []byte) error {
-	if len(serializedData) < minimumUpdateDataLength {
-		return NewErrorf(ErrNothingToReturn, "chunk less than %d bytes cannot be a feed update chunk", minimumUpdateDataLength)
-	}
-	dataLength := len(serializedData) - idLength - headerLength
-	// at this point we can be satisfied that we have the correct data length to read
-
-	var cursor int
-
-	// deserialize Header
-	r.Header.Version = serializedData[cursor]                                      // extract the protocol version
-	copy(r.Header.Padding[:headerLength-1], serializedData[cursor+1:headerLength]) // extract the padding
-	cursor += headerLength
-
-	if err := r.ID.binaryGet(serializedData[cursor : cursor+idLength]); err != nil {
-		return err
-	}
-	cursor += idLength
-
-	data := serializedData[cursor : cursor+dataLength]
-	cursor += dataLength
-
-	// now that all checks have passed, copy data into structure
-	r.data = make([]byte, dataLength)
-	copy(r.data, data)
-
-	return nil
-
-}
-
-// FromValues deserializes this instance from a string key-value store
-// useful to parse query strings
-func (r *Update) FromValues(values Values, data []byte) error {
-	r.data = data
-	version, _ := strconv.ParseUint(values.Get("protocolVersion"), 10, 32)
-	r.Header.Version = uint8(version)
-	return r.ID.FromValues(values)
-}
-
-// AppendValues serializes this structure into the provided string key-value store
-// useful to build query strings
-func (r *Update) AppendValues(values Values) []byte {
-	r.ID.AppendValues(values)
-	values.Set("protocolVersion", fmt.Sprintf("%d", r.Header.Version))
-	return r.data
-}