1 files changed, 0 insertions, 125 deletions
diff --git a/swarm/storage/feed/feed.go b/swarm/storage/feed/feed.go
deleted file mode 100644
index b6ea665a6..000000000
--- a/swarm/storage/feed/feed.go
+++ /dev/null
@@ -1,125 +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 (
-	"hash"
-	"unsafe"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/ethereum/go-ethereum/swarm/storage"
-)
-
-// Feed represents a particular user's stream of updates on a topic
-type Feed struct {
-	Topic Topic          `json:"topic"`
-	User  common.Address `json:"user"`
-}
-
-// Feed layout:
-// TopicLength bytes
-// userAddr common.AddressLength bytes
-const feedLength = TopicLength + common.AddressLength
-
-// mapKey calculates a unique id for this feed. Used by the cache map in `Handler`
-func (f *Feed) mapKey() uint64 {
-	serializedData := make([]byte, feedLength)
-	f.binaryPut(serializedData)
-	hasher := hashPool.Get().(hash.Hash)
-	defer hashPool.Put(hasher)
-	hasher.Reset()
-	hasher.Write(serializedData)
-	hash := hasher.Sum(nil)
-	return *(*uint64)(unsafe.Pointer(&hash[0]))
-}
-
-// binaryPut serializes this feed instance into the provided slice
-func (f *Feed) binaryPut(serializedData []byte) error {
-	if len(serializedData) != feedLength {
-		return NewErrorf(ErrInvalidValue, "Incorrect slice size to serialize feed. Expected %d, got %d", feedLength, len(serializedData))
-	}
-	var cursor int
-	copy(serializedData[cursor:cursor+TopicLength], f.Topic[:TopicLength])
-	cursor += TopicLength
-
-	copy(serializedData[cursor:cursor+common.AddressLength], f.User[:])
-	cursor += common.AddressLength
-
-	return nil
-}
-
-// binaryLength returns the expected size of this structure when serialized
-func (f *Feed) binaryLength() int {
-	return feedLength
-}
-
-// binaryGet restores the current instance from the information contained in the passed slice
-func (f *Feed) binaryGet(serializedData []byte) error {
-	if len(serializedData) != feedLength {
-		return NewErrorf(ErrInvalidValue, "Incorrect slice size to read feed. Expected %d, got %d", feedLength, len(serializedData))
-	}
-
-	var cursor int
-	copy(f.Topic[:], serializedData[cursor:cursor+TopicLength])
-	cursor += TopicLength
-
-	copy(f.User[:], serializedData[cursor:cursor+common.AddressLength])
-	cursor += common.AddressLength
-
-	return nil
-}
-
-// Hex serializes the feed to a hex string
-func (f *Feed) Hex() string {
-	serializedData := make([]byte, feedLength)
-	f.binaryPut(serializedData)
-	return hexutil.Encode(serializedData)
-}
-
-// FromValues deserializes this instance from a string key-value store
-// useful to parse query strings
-func (f *Feed) FromValues(values Values) (err error) {
-	topic := values.Get("topic")
-	if topic != "" {
-		if err := f.Topic.FromHex(values.Get("topic")); err != nil {
-			return err
-		}
-	} else { // see if the user set name and relatedcontent
-		name := values.Get("name")
-		relatedContent, _ := hexutil.Decode(values.Get("relatedcontent"))
-		if len(relatedContent) > 0 {
-			if len(relatedContent) < storage.AddressLength {
-				return NewErrorf(ErrInvalidValue, "relatedcontent field must be a hex-encoded byte array exactly %d bytes long", storage.AddressLength)
-			}
-			relatedContent = relatedContent[:storage.AddressLength]
-		}
-		f.Topic, err = NewTopic(name, relatedContent)
-		if err != nil {
-			return err
-		}
-	}
-	f.User = common.HexToAddress(values.Get("user"))
-	return nil
-}
-
-// AppendValues serializes this structure into the provided string key-value store
-// useful to build query strings
-func (f *Feed) AppendValues(values Values) {
-	values.Set("topic", f.Topic.Hex())
-	values.Set("user", f.User.Hex())
-}