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platform.go
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platform.go
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/*
* Copyright 2020 ICON Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package icon
import (
"encoding/json"
"io/ioutil"
"math/big"
"os"
"path"
"github.com/icon-project/goloop/block"
"github.com/icon-project/goloop/chain/base"
"github.com/icon-project/goloop/common"
"github.com/icon-project/goloop/common/codec"
"github.com/icon-project/goloop/common/db"
"github.com/icon-project/goloop/common/log"
"github.com/icon-project/goloop/common/merkle"
"github.com/icon-project/goloop/consensus"
"github.com/icon-project/goloop/icon/blockv0"
"github.com/icon-project/goloop/icon/blockv1"
"github.com/icon-project/goloop/icon/icconsensus"
"github.com/icon-project/goloop/icon/icmodule"
"github.com/icon-project/goloop/icon/iiss"
"github.com/icon-project/goloop/icon/iiss/iccache"
"github.com/icon-project/goloop/icon/iiss/icutils"
"github.com/icon-project/goloop/icon/merkle/hexary"
"github.com/icon-project/goloop/module"
"github.com/icon-project/goloop/service/contract"
"github.com/icon-project/goloop/service/platform/basic"
"github.com/icon-project/goloop/service/state"
"github.com/icon-project/goloop/service/transaction"
"github.com/icon-project/goloop/service/txresult"
)
type platform struct {
calculator iiss.CalculatorHolder
base string
}
func (p *platform) NewContractManager(dbase db.Database, dir string, logger log.Logger) (contract.ContractManager, error) {
return newContractManager(p, dbase, dir, logger)
}
func (p *platform) NewExtensionSnapshot(dbase db.Database, raw []byte) state.ExtensionSnapshot {
// TODO return valid ExtensionSnapshot(not nil) which can return valid ExtensionState.
// with that state, we may change state of extension.
// For initial state, the snapshot returns nil for Bytes() method.
if len(raw) == 0 {
return nil
}
dbase = iccache.AttachStateNodeCache(dbase)
return iiss.NewExtensionSnapshot(dbase, raw)
}
func (p *platform) NewExtensionWithBuilder(builder merkle.Builder, raw []byte) state.ExtensionSnapshot {
return iiss.NewExtensionSnapshotWithBuilder(builder, raw)
}
func (p *platform) ToRevision(value int) module.Revision {
return icmodule.ValueToRevision(value)
}
func (p *platform) NewBaseTransaction(wc state.WorldContext) (module.Transaction, error) {
// calculate issued i-score and amount balance. No changes on world context.
es := p.getExtensionState(wc, nil)
if es == nil || !es.IsDecentralized() {
return nil, nil
}
t := common.HexInt64{Value: wc.BlockTimeStamp()}
v := common.HexUint16{Value: module.TransactionVersion3}
prep, issue := iiss.GetIssueData(es)
data := make(map[string]interface{})
if prep != nil {
data["prep"] = prep
}
if issue != nil {
data["result"] = issue
}
mtx := map[string]interface{}{
"timestamp": t,
"version": v,
"dataType": "base",
"data": data,
}
bs, err := json.Marshal(mtx)
if err != nil {
return nil, err
}
tx, err := transaction.NewTransactionFromJSON(bs)
if err != nil {
return nil, err
}
return tx, nil
}
func (p *platform) OnExtensionSnapshotFinalization(ess state.ExtensionSnapshot, logger log.Logger) {
// Start background calculator if it's not started.
p.calculator.Start(ess, logger)
}
func (p *platform) OnExecutionBegin(wc state.WorldContext, logger log.Logger) error {
revision := wc.Revision().Value()
if revision < icmodule.RevisionIISS {
return nil
}
if revision >= icmodule.Revision12 && revision < icmodule.RevisionFixRLPBug {
// Set batch data root storing block batch data and tx batch data
wc.(contract.Context).SetProperty(BatchKey, new(batchRoot).Init(nil))
}
es := p.getExtensionState(wc, logger)
if es == nil {
return nil
}
return es.OnExecutionBegin(iiss.NewWorldContext(wc))
}
func (p *platform) OnExecutionEnd(wc state.WorldContext, er base.ExecutionResult, logger log.Logger) error {
revision := wc.Revision().Value()
if revision < icmodule.RevisionIISS {
return nil
}
es := p.getExtensionState(wc, logger)
if es == nil {
return nil
}
var totalFee *big.Int
if revision < icmodule.RevisionEnableIISS3 {
// Use virtual fee instead of total fee for IISS 2.x
totalFee = er.VirtualFee()
} else {
totalFee = er.TotalFee()
}
return es.OnExecutionEnd(iiss.NewWorldContext(wc), totalFee, p.calculator.Get())
}
func (p *platform) OnTransactionEnd(wc state.WorldContext, logger log.Logger, rct txresult.Receipt) error {
success := rct.Status() == module.StatusSuccess
// Apply stored tx batch data
if value := wc.(contract.Context).GetProperty(BatchKey); value != nil {
root := value.(*batchRoot)
root.handleTxBatch(success)
}
es := p.getExtensionState(wc, logger)
if es == nil {
return nil
}
return es.OnTransactionEnd(wc.BlockHeight(), success)
}
func (p *platform) Term() {
// Terminate
}
func (p *platform) DefaultBlockVersionFor(cid int) int {
if cid == CIDForMainNet || cid == CIDForTestNet {
return module.BlockVersion1
}
return basic.Platform.DefaultBlockVersionFor(cid)
}
func (p *platform) NewBlockHandlers(c base.Chain) []base.BlockHandler {
if p.DefaultBlockVersionFor(c.CID()) != module.BlockVersion1 {
return basic.Platform.NewBlockHandlers(c)
}
return []base.BlockHandler{
blockv1.NewHandler(c),
block.NewBlockV2Handler(c),
}
}
func (p *platform) NewConsensus(c base.Chain, walDir string) (module.Consensus, error) {
if p.DefaultBlockVersionFor(c.CID()) != module.BlockVersion1 {
return basic.Platform.NewConsensus(c, walDir)
}
header, lastVotes, err := p.GetBlockV1Proof()
if err != nil {
return nil, err
}
cs, err := icconsensus.New(c, walDir, nil, nil, header, lastVotes)
if err != nil {
return nil, err
}
return cs, nil
}
func (t *platform) CommitVoteSetDecoder() module.CommitVoteSetDecoder {
return func(bytes []byte) module.CommitVoteSet {
vs := consensus.NewCommitVoteSetFromBytes(bytes)
if vs != nil {
return vs
}
vl, _ := blockv0.NewBlockVotesFromBytes(bytes)
return vl
}
}
const (
BlockV1ProofFile = "block_v1_proof.bin"
)
type BlockV1Proof struct {
MerkleHeader *hexary.MerkleHeader
LastVotes *blockv0.BlockVoteList
}
func (p *platform) GetBlockV1Proof() (*hexary.MerkleHeader, *blockv0.BlockVoteList, error) {
file := path.Join(p.base, BlockV1ProofFile)
reader, err := os.Open(file)
if err != nil {
return nil, nil, err
}
defer reader.Close()
bp := new(BlockV1Proof)
if err := codec.BC.Unmarshal(reader, bp); err != nil {
return nil, nil, err
}
return bp.MerkleHeader, bp.LastVotes, nil
}
func (p *platform) SetBlockV1Proof(root []byte, size int64, votes *blockv0.BlockVoteList) error {
hdr := &BlockV1Proof{
MerkleHeader: &hexary.MerkleHeader{
RootHash: root,
Leaves: size,
},
LastVotes: votes,
}
bs, err := codec.BC.MarshalToBytes(hdr)
if err != nil {
return err
}
file := path.Join(p.base, BlockV1ProofFile)
return ioutil.WriteFile(file, bs, os.FileMode(0500))
}
func NewPlatform(base string, cid int) (base.Platform, error) {
return &platform{
base: base,
}, nil
}
func init() {
iiss.RegisterBaseTx()
}
func (p *platform) getExtensionState(wc state.WorldContext, logger log.Logger) *iiss.ExtensionStateImpl {
es := wc.GetExtensionState()
if es == nil {
return nil
}
esi, ok := es.(*iiss.ExtensionStateImpl)
if !ok {
return nil
}
if logger != nil {
esi.SetLogger(icutils.NewIconLogger(logger))
}
return esi
}