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Diffstat (limited to 'swarm/storage/mru/updateheader.go')
-rw-r--r--swarm/storage/mru/updateheader.go88
1 files changed, 0 insertions, 88 deletions
diff --git a/swarm/storage/mru/updateheader.go b/swarm/storage/mru/updateheader.go
deleted file mode 100644
index f0039eaf6..000000000
--- a/swarm/storage/mru/updateheader.go
+++ /dev/null
@@ -1,88 +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 mru
-
-import (
- "github.com/ethereum/go-ethereum/swarm/storage"
-)
-
-// updateHeader models the non-payload components of a Resource Update
-type updateHeader struct {
- UpdateLookup // UpdateLookup contains the information required to locate this resource (components of the search key used to find it)
- multihash bool // Whether the data in this Resource Update should be interpreted as multihash
- metaHash []byte // SHA3 hash of the metadata chunk (less ownerAddr). Used to prove ownerhsip of the resource.
-}
-
-const metaHashLength = storage.AddressLength
-
-// updateLookupLength bytes
-// 1 byte flags (multihash bool for now)
-// 32 bytes metaHash
-const updateHeaderLength = updateLookupLength + 1 + metaHashLength
-
-// binaryPut serializes the resource header information into the given slice
-func (h *updateHeader) binaryPut(serializedData []byte) error {
- if len(serializedData) != updateHeaderLength {
- return NewErrorf(ErrInvalidValue, "Incorrect slice size to serialize updateHeaderLength. Expected %d, got %d", updateHeaderLength, len(serializedData))
- }
- if len(h.metaHash) != metaHashLength {
- return NewError(ErrInvalidValue, "updateHeader.binaryPut called without metaHash set")
- }
- if err := h.UpdateLookup.binaryPut(serializedData[:updateLookupLength]); err != nil {
- return err
- }
- cursor := updateLookupLength
- copy(serializedData[cursor:], h.metaHash[:metaHashLength])
- cursor += metaHashLength
-
- var flags byte
- if h.multihash {
- flags |= 0x01
- }
-
- serializedData[cursor] = flags
- cursor++
-
- return nil
-}
-
-// binaryLength returns the expected size of this structure when serialized
-func (h *updateHeader) binaryLength() int {
- return updateHeaderLength
-}
-
-// binaryGet restores the current updateHeader instance from the information contained in the passed slice
-func (h *updateHeader) binaryGet(serializedData []byte) error {
- if len(serializedData) != updateHeaderLength {
- return NewErrorf(ErrInvalidValue, "Incorrect slice size to read updateHeaderLength. Expected %d, got %d", updateHeaderLength, len(serializedData))
- }
-
- if err := h.UpdateLookup.binaryGet(serializedData[:updateLookupLength]); err != nil {
- return err
- }
- cursor := updateLookupLength
- h.metaHash = make([]byte, metaHashLength)
- copy(h.metaHash[:storage.AddressLength], serializedData[cursor:cursor+storage.AddressLength])
- cursor += metaHashLength
-
- flags := serializedData[cursor]
- cursor++
-
- h.multihash = flags&0x01 != 0
-
- return nil
-}