79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Contains a batch of utility type declarations used by the tests. As the node
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// operates on unique types, a lot of them are needed to check various features.
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package ipfs
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import (
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"bytes"
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"encoding/gob"
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"github.com/i-norden/go-ethereum/statediff"
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ipld "gx/ipfs/QmWi2BYBL5gJ3CiAiQchg6rn1A8iBsrWy51EYxvHVjFvLb/go-ipld-format"
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)
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const (
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EthStateDiffCode = 0x99 // Register custom codec for state diff?
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)
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type DagPutter interface {
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DagPut(sd *statediff.StateDiff) (string, error)
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}
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type dagPutter struct {
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Adder
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}
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func NewDagPutter(adder Adder) *dagPutter {
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return &dagPutter{Adder: adder}
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}
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func (bhdp *dagPutter) DagPut(sd *statediff.StateDiff) (string, error) {
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nd, err := bhdp.getNode(sd)
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if err != nil {
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return "", err
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}
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err = bhdp.Add(nd)
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if err != nil {
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return "", err
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}
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return nd.Cid().String(), nil
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}
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func (bhdp *dagPutter) getNode(sd *statediff.StateDiff) (ipld.Node, error) {
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var buff bytes.Buffer
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enc := gob.NewEncoder(&buff)
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err := enc.Encode(sd)
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if err != nil {
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return nil, err
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}
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raw := buff.Bytes()
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cid, err := RawToCid(EthStateDiffCode, raw)
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if err != nil {
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return nil, err
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}
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return &StateDiffNode{
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StateDiff: sd,
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cid: cid,
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rawdata: raw,
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}, nil
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} |