diff options
Diffstat (limited to 'plugin/evm')
| -rw-r--r-- | plugin/evm/block.go | 75 | ||||
| -rw-r--r-- | plugin/evm/database.go | 66 | ||||
| -rw-r--r-- | plugin/evm/factory.go | 19 | ||||
| -rw-r--r-- | plugin/evm/service.go | 122 | ||||
| -rw-r--r-- | plugin/evm/static_service.go | 22 | ||||
| -rw-r--r-- | plugin/evm/static_service_test.go | 64 | ||||
| -rw-r--r-- | plugin/evm/vm.go | 502 | ||||
| -rw-r--r-- | plugin/evm/vm_genesis_parse_test.go | 32 |
8 files changed, 0 insertions, 902 deletions
diff --git a/plugin/evm/block.go b/plugin/evm/block.go deleted file mode 100644 index ec47490..0000000 --- a/plugin/evm/block.go +++ /dev/null @@ -1,75 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "fmt" - - "github.com/ava-labs/go-ethereum/core/types" - "github.com/ava-labs/go-ethereum/rlp" - - "github.com/ava-labs/gecko/ids" - "github.com/ava-labs/gecko/snow/choices" - "github.com/ava-labs/gecko/snow/consensus/snowman" -) - -// Block implements the snowman.Block interface -type Block struct { - id ids.ID - ethBlock *types.Block - vm *VM -} - -// ID implements the snowman.Block interface -func (b *Block) ID() ids.ID { return b.id } - -// Accept implements the snowman.Block interface -func (b *Block) Accept() { - b.vm.ctx.Log.Verbo("Block %s is accepted", b.ID()) - b.vm.updateStatus(b.ID(), choices.Accepted) -} - -// Reject implements the snowman.Block interface -func (b *Block) Reject() { - b.vm.ctx.Log.Verbo("Block %s is rejected", b.ID()) - b.vm.updateStatus(b.ID(), choices.Rejected) -} - -// Status implements the snowman.Block interface -func (b *Block) Status() choices.Status { - status := b.vm.getCachedStatus(b.ID()) - if status == choices.Unknown && b.ethBlock != nil { - return choices.Processing - } - return status -} - -// Parent implements the snowman.Block interface -func (b *Block) Parent() snowman.Block { - parentID := ids.NewID(b.ethBlock.ParentHash()) - block := &Block{ - id: parentID, - ethBlock: b.vm.getCachedBlock(parentID), - vm: b.vm, - } - b.vm.ctx.Log.Verbo("Parent(%s) has status: %s", block.ID(), block.Status()) - return block -} - -// Verify implements the snowman.Block interface -func (b *Block) Verify() error { - _, err := b.vm.chain.InsertChain([]*types.Block{b.ethBlock}) - return err -} - -// Bytes implements the snowman.Block interface -func (b *Block) Bytes() []byte { - res, err := rlp.EncodeToBytes(b.ethBlock) - if err != nil { - panic(err) - } - return res -} - -func (b *Block) String() string { return fmt.Sprintf("EVM block, ID = %s", b.ID()) } diff --git a/plugin/evm/database.go b/plugin/evm/database.go deleted file mode 100644 index de592e1..0000000 --- a/plugin/evm/database.go +++ /dev/null @@ -1,66 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "errors" - - "github.com/ava-labs/go-ethereum/ethdb" - - "github.com/ava-labs/gecko/database" -) - -var ( - errOpNotSupported = errors.New("this operation is not supported") -) - -// Database implements ethdb.Database -type Database struct{ database.Database } - -// HasAncient returns an error as we don't have a backing chain freezer. -func (db Database) HasAncient(kind string, number uint64) (bool, error) { - return false, errOpNotSupported -} - -// Ancient returns an error as we don't have a backing chain freezer. -func (db Database) Ancient(kind string, number uint64) ([]byte, error) { return nil, errOpNotSupported } - -// Ancients returns an error as we don't have a backing chain freezer. -func (db Database) Ancients() (uint64, error) { return 0, errOpNotSupported } - -// AncientSize returns an error as we don't have a backing chain freezer. -func (db Database) AncientSize(kind string) (uint64, error) { return 0, errOpNotSupported } - -// AppendAncient returns an error as we don't have a backing chain freezer. -func (db Database) AppendAncient(number uint64, hash, header, body, receipts, td []byte) error { - return errOpNotSupported -} - -// TruncateAncients returns an error as we don't have a backing chain freezer. -func (db Database) TruncateAncients(items uint64) error { return errOpNotSupported } - -// Sync returns an error as we don't have a backing chain freezer. -func (db Database) Sync() error { return errOpNotSupported } - -// NewBatch implements ethdb.Database -func (db Database) NewBatch() ethdb.Batch { return Batch{db.Database.NewBatch()} } - -// NewIterator implements ethdb.Database -func (db Database) NewIterator() ethdb.Iterator { return db.Database.NewIterator() } - -// NewIteratorWithPrefix implements ethdb.Database -func (db Database) NewIteratorWithPrefix(prefix []byte) ethdb.Iterator { - return db.NewIteratorWithPrefix(prefix) -} - -// NewIteratorWithStart implements ethdb.Database -func (db Database) NewIteratorWithStart(start []byte) ethdb.Iterator { - return db.NewIteratorWithStart(start) -} - -// Batch implements ethdb.Batch -type Batch struct{ database.Batch } - -// Replay implements ethdb.Batch -func (batch Batch) Replay(w ethdb.KeyValueWriter) error { return batch.Batch.Replay(w) } diff --git a/plugin/evm/factory.go b/plugin/evm/factory.go deleted file mode 100644 index a4c0eca..0000000 --- a/plugin/evm/factory.go +++ /dev/null @@ -1,19 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "github.com/ava-labs/gecko/ids" -) - -// ID this VM should be referenced by -var ( - ID = ids.NewID([32]byte{'e', 'v', 'm'}) -) - -// Factory ... -type Factory struct{} - -// New ... -func (f *Factory) New() interface{} { return &VM{} } diff --git a/plugin/evm/service.go b/plugin/evm/service.go deleted file mode 100644 index 70135cc..0000000 --- a/plugin/evm/service.go +++ /dev/null @@ -1,122 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "context" - "crypto/rand" - "fmt" - "math/big" - - "github.com/ava-labs/coreth" - - "github.com/ava-labs/go-ethereum/common" - "github.com/ava-labs/go-ethereum/common/hexutil" - "github.com/ava-labs/go-ethereum/core/types" - "github.com/ava-labs/go-ethereum/crypto" -) - -const ( - version = "Athereum 1.0" -) - -// test constants -const ( - GenesisTestAddr = "0x751a0b96e1042bee789452ecb20253fba40dbe85" - GenesisTestKey = "0xabd71b35d559563fea757f0f5edbde286fb8c043105b15abb7cd57189306d7d1" -) - -// DebugAPI introduces helper functions for debuging -type DebugAPI struct{ vm *VM } - -// SnowmanAPI introduces snowman specific functionality to the evm -type SnowmanAPI struct{ vm *VM } - -// NetAPI offers network related API methods -type NetAPI struct{ vm *VM } - -// NewNetAPI creates a new net API instance. -func NewNetAPI(vm *VM) *NetAPI { return &NetAPI{vm} } - -// Listening returns an indication if the node is listening for network connections. -func (s *NetAPI) Listening() bool { return true } // always listening - -// PeerCount returns the number of connected peers -func (s *NetAPI) PeerCount() hexutil.Uint { return hexutil.Uint(0) } // TODO: report number of connected peers - -// Version returns the current ethereum protocol version. -func (s *NetAPI) Version() string { return fmt.Sprintf("%d", s.vm.networkID) } - -// Web3API offers helper API methods -type Web3API struct{} - -// ClientVersion returns the version of the vm running -func (s *Web3API) ClientVersion() string { return version } - -// Sha3 returns the bytes returned by hashing [input] with Keccak256 -func (s *Web3API) Sha3(input hexutil.Bytes) hexutil.Bytes { return crypto.Keccak256(input) } - -// GetAcceptedFrontReply defines the reply that will be sent from the -// GetAcceptedFront API call -type GetAcceptedFrontReply struct { - Hash common.Hash `json:"hash"` - Number *big.Int `json:"number"` -} - -// GetAcceptedFront returns the last accepted block's hash and height -func (api *SnowmanAPI) GetAcceptedFront(ctx context.Context) (*GetAcceptedFrontReply, error) { - blk := api.vm.getLastAccepted().ethBlock - return &GetAcceptedFrontReply{ - Hash: blk.Hash(), - Number: blk.Number(), - }, nil -} - -// GetGenesisBalance returns the current funds in the genesis -func (api *DebugAPI) GetGenesisBalance(ctx context.Context) (*hexutil.Big, error) { - lastAccepted := api.vm.getLastAccepted() - api.vm.ctx.Log.Verbo("Currently accepted block front: %s", lastAccepted.ethBlock.Hash().Hex()) - state, err := api.vm.chain.BlockState(lastAccepted.ethBlock) - if err != nil { - return nil, err - } - return (*hexutil.Big)(state.GetBalance(common.HexToAddress(GenesisTestAddr))), nil -} - -// SpendGenesis funds -func (api *DebugAPI) SpendGenesis(ctx context.Context, nonce uint64) error { - api.vm.ctx.Log.Info("Spending the genesis") - - value := big.NewInt(1000000000000) - gasLimit := 21000 - gasPrice := big.NewInt(1000000000) - - genPrivateKey, err := crypto.HexToECDSA(GenesisTestKey[2:]) - if err != nil { - return err - } - bob, err := coreth.NewKey(rand.Reader) - if err != nil { - return err - } - - tx := types.NewTransaction(nonce, bob.Address, value, uint64(gasLimit), gasPrice, nil) - signedTx, err := types.SignTx(tx, types.NewEIP155Signer(api.vm.chainID), genPrivateKey) - if err != nil { - return err - } - - if err := api.vm.issueRemoteTxs([]*types.Transaction{signedTx}); err != nil { - return err - } - - return nil -} - -// IssueBlock to the chain -func (api *DebugAPI) IssueBlock(ctx context.Context) error { - api.vm.ctx.Log.Info("Issuing a new block") - - return api.vm.tryBlockGen() -} diff --git a/plugin/evm/static_service.go b/plugin/evm/static_service.go deleted file mode 100644 index d3870ca..0000000 --- a/plugin/evm/static_service.go +++ /dev/null @@ -1,22 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "context" - "encoding/json" - - "github.com/ava-labs/coreth/core" - "github.com/ava-labs/gecko/utils/formatting" -) - -// StaticService defines the static API services exposed by the evm -type StaticService struct{} - -// BuildGenesis returns the UTXOs such that at least one address in [args.Addresses] is -// referenced in the UTXO. -func (*StaticService) BuildGenesis(_ context.Context, args *core.Genesis) (formatting.CB58, error) { - bytes, err := json.Marshal(args) - return formatting.CB58{Bytes: bytes}, err -} diff --git a/plugin/evm/static_service_test.go b/plugin/evm/static_service_test.go deleted file mode 100644 index c492798..0000000 --- a/plugin/evm/static_service_test.go +++ /dev/null @@ -1,64 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "math/big" - "testing" - - "github.com/ava-labs/go-ethereum/common" - "github.com/ava-labs/go-ethereum/params" - - "github.com/ava-labs/coreth/core" -) - -func TestBuildGenesis(t *testing.T) { - expected := "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" - - balance, success := new(big.Int).SetString("33b2e3c9fd0804000000000", 16) - if !success { - t.Fatal("Failed to initialize balance") - } - - args := core.Genesis{ - Config: ¶ms.ChainConfig{ - ChainID: big.NewInt(43110), - HomesteadBlock: big.NewInt(0), - DAOForkBlock: big.NewInt(0), - DAOForkSupport: true, - EIP150Block: big.NewInt(0), - EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"), - EIP155Block: big.NewInt(0), - EIP158Block: big.NewInt(0), - ByzantiumBlock: big.NewInt(0), - ConstantinopleBlock: big.NewInt(0), - PetersburgBlock: big.NewInt(0), - }, - Nonce: 0, - Timestamp: 0, - ExtraData: []byte{}, - GasLimit: 100000000, - Difficulty: big.NewInt(0), - Mixhash: common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"), - Coinbase: common.HexToAddress("0x0000000000000000000000000000000000000000"), - Alloc: core.GenesisAlloc{ - common.HexToAddress("751a0b96e1042bee789452ecb20253fba40dbe85"): core.GenesisAccount{ - Balance: balance, - }, - }, - Number: 0, - GasUsed: 0, - ParentHash: common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"), - } - - ss := StaticService{} - result, err := ss.BuildGenesis(nil, &args) - if err != nil { - t.Fatal(err) - } - - if result.String() != expected { - t.Fatalf("StaticService.BuildGenesis:\nReturned: %s\nExpected: %s", result, expected) - } -} diff --git a/plugin/evm/vm.go b/plugin/evm/vm.go deleted file mode 100644 index a9011ea..0000000 --- a/plugin/evm/vm.go +++ /dev/null @@ -1,502 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "crypto/rand" - "encoding/json" - "errors" - "fmt" - "math/big" - "sync" - "sync/atomic" - "time" - - "github.com/ava-labs/coreth" - "github.com/ava-labs/coreth/core" - "github.com/ava-labs/coreth/eth" - "github.com/ava-labs/coreth/node" - - "github.com/ava-labs/go-ethereum/common" - "github.com/ava-labs/go-ethereum/core/types" - "github.com/ava-labs/go-ethereum/rlp" - "github.com/ava-labs/go-ethereum/rpc" - - "github.com/ava-labs/gecko/cache" - "github.com/ava-labs/gecko/database" - "github.com/ava-labs/gecko/ids" - "github.com/ava-labs/gecko/snow" - "github.com/ava-labs/gecko/snow/choices" - "github.com/ava-labs/gecko/snow/consensus/snowman" - "github.com/ava-labs/gecko/utils/timer" - - commonEng "github.com/ava-labs/gecko/snow/engine/common" -) - -const ( - lastAcceptedKey = "snowman_lastAccepted" -) - -const ( - minBlockTime = 250 * time.Millisecond - maxBlockTime = 1000 * time.Millisecond - batchSize = 250 -) - -const ( - bdTimerStateMin = iota - bdTimerStateMax - bdTimerStateLong -) - -var ( - errEmptyBlock = errors.New("empty block") - errCreateBlock = errors.New("couldn't create block") - errUnknownBlock = errors.New("unknown block") - errBlockFrequency = errors.New("too frequent block issuance") - errUnsupportedFXs = errors.New("unsupported feature extensions") -) - -func maxDuration(x, y time.Duration) time.Duration { - if x > y { - return x - } - return y -} - -// VM implements the snowman.ChainVM interface -type VM struct { - ctx *snow.Context - - chainID *big.Int - networkID uint64 - chain *coreth.ETHChain - chaindb Database - newBlockChan chan *Block - networkChan chan<- commonEng.Message - newTxPoolHeadChan chan core.NewTxPoolHeadEvent - - txPoolStabilizedHead common.Hash - txPoolStabilizedOk chan struct{} - txPoolStabilizedLock sync.Mutex - - metalock sync.Mutex - blockCache, blockStatusCache cache.LRU - lastAccepted *Block - writingMetadata uint32 - - bdlock sync.Mutex - blockDelayTimer *timer.Timer - bdTimerState int8 - bdGenWaitFlag bool - bdGenFlag bool - - genlock sync.Mutex - txSubmitChan <-chan struct{} -} - -/* - ****************************************************************************** - ********************************* Snowman API ******************************** - ****************************************************************************** - */ - -// Initialize implements the snowman.ChainVM interface -func (vm *VM) Initialize( - ctx *snow.Context, - db database.Database, - b []byte, - toEngine chan<- commonEng.Message, - fxs []*commonEng.Fx, -) error { - if len(fxs) > 0 { - return errUnsupportedFXs - } - - vm.ctx = ctx - vm.chaindb = Database{db} - g := new(core.Genesis) - err := json.Unmarshal(b, g) - if err != nil { - return err - } - - vm.chainID = g.Config.ChainID - - config := eth.DefaultConfig - config.ManualCanonical = true - config.Genesis = g - config.Miner.ManualMining = true - config.Miner.DisableUncle = true - if err := config.SetGCMode("archive"); err != nil { - panic(err) - } - nodecfg := node.Config{NoUSB: true} - chain := coreth.NewETHChain(&config, &nodecfg, nil, vm.chaindb) - vm.chain = chain - vm.networkID = config.NetworkId - chain.SetOnHeaderNew(func(header *types.Header) { - hid := make([]byte, 32) - _, err := rand.Read(hid) - if err != nil { - panic("cannot generate hid") - } - header.Extra = append(header.Extra, hid...) - }) - chain.SetOnSeal(func(block *types.Block) error { - if len(block.Transactions()) == 0 { - // this could happen due to the async logic of geth tx pool - vm.newBlockChan <- nil - return errEmptyBlock - } - return nil - }) - chain.SetOnSealFinish(func(block *types.Block) error { - vm.ctx.Log.Verbo("EVM sealed a block") - - blk := &Block{ - id: ids.NewID(block.Hash()), - ethBlock: block, - vm: vm, - } - vm.newBlockChan <- blk - vm.updateStatus(ids.NewID(block.Hash()), choices.Processing) - vm.txPoolStabilizedLock.Lock() - vm.txPoolStabilizedHead = block.Hash() - vm.txPoolStabilizedLock.Unlock() - return nil - }) - chain.SetOnQueryAcceptedBlock(func() *types.Block { - return vm.getLastAccepted().ethBlock - }) - vm.blockCache = cache.LRU{Size: 2048} - vm.blockStatusCache = cache.LRU{Size: 1024} - vm.newBlockChan = make(chan *Block) - vm.networkChan = toEngine - vm.blockDelayTimer = timer.NewTimer(func() { - vm.bdlock.Lock() - switch vm.bdTimerState { - case bdTimerStateMin: - vm.bdTimerState = bdTimerStateMax - vm.blockDelayTimer.SetTimeoutIn(maxDuration(maxBlockTime-minBlockTime, 0)) - case bdTimerStateMax: - vm.bdTimerState = bdTimerStateLong - } - tryAgain := vm.bdGenWaitFlag - vm.bdlock.Unlock() - if tryAgain { - vm.tryBlockGen() - } - }) - go ctx.Log.RecoverAndPanic(vm.blockDelayTimer.Dispatch) - - vm.bdTimerState = bdTimerStateLong - vm.bdGenWaitFlag = true - vm.newTxPoolHeadChan = make(chan core.NewTxPoolHeadEvent, 1) - vm.txPoolStabilizedOk = make(chan struct{}, 1) - chain.GetTxPool().SubscribeNewHeadEvent(vm.newTxPoolHeadChan) - // TODO: shutdown this go routine - go ctx.Log.RecoverAndPanic(func() { - for { - select { - case h := <-vm.newTxPoolHeadChan: - vm.txPoolStabilizedLock.Lock() - if vm.txPoolStabilizedHead == h.Block.Hash() { - vm.txPoolStabilizedOk <- struct{}{} - vm.txPoolStabilizedHead = common.Hash{} - } - vm.txPoolStabilizedLock.Unlock() - } - } - }) - chain.Start() - - var lastAccepted *types.Block - if b, err := vm.chaindb.Get([]byte(lastAcceptedKey)); err == nil { - var hash common.Hash - if err = rlp.DecodeBytes(b, &hash); err == nil { - if block := chain.GetBlockByHash(hash); block == nil { - vm.ctx.Log.Debug("lastAccepted block not found in chaindb") - } else { - lastAccepted = block - } - } - } - if lastAccepted == nil { - vm.ctx.Log.Debug("lastAccepted is unavailable, setting to the genesis block") - lastAccepted = chain.GetGenesisBlock() - } - vm.lastAccepted = &Block{ - id: ids.NewID(lastAccepted.Hash()), - ethBlock: lastAccepted, - vm: vm, - } - vm.ctx.Log.Info(fmt.Sprintf("lastAccepted = %s", vm.lastAccepted.ethBlock.Hash().Hex())) - - // TODO: shutdown this go routine - go vm.ctx.Log.RecoverAndPanic(func() { - vm.txSubmitChan = vm.chain.GetTxSubmitCh() - for { - select { - case <-vm.txSubmitChan: - vm.ctx.Log.Verbo("New tx detected, trying to generate a block") - vm.tryBlockGen() - case <-time.After(5 * time.Second): - vm.tryBlockGen() - } - } - }) - - return nil -} - -// Shutdown implements the snowman.ChainVM interface -func (vm *VM) Shutdown() { - if vm.ctx == nil { - return - } - - vm.writeBackMetadata() - vm.chain.Stop() -} - -// BuildBlock implements the snowman.ChainVM interface -func (vm *VM) BuildBlock() (snowman.Block, error) { - vm.chain.GenBlock() - block := <-vm.newBlockChan - if block == nil { - return nil, errCreateBlock - } - // reset the min block time timer - vm.bdlock.Lock() - vm.bdTimerState = bdTimerStateMin - vm.bdGenWaitFlag = false - vm.bdGenFlag = false - vm.blockDelayTimer.SetTimeoutIn(minBlockTime) - vm.bdlock.Unlock() - - vm.ctx.Log.Debug("built block 0x%x", block.ID().Bytes()) - // make sure Tx Pool is updated - <-vm.txPoolStabilizedOk - return block, nil -} - -// ParseBlock implements the snowman.ChainVM interface -func (vm *VM) ParseBlock(b []byte) (snowman.Block, error) { - vm.metalock.Lock() - defer vm.metalock.Unlock() - - ethBlock := new(types.Block) - if err := rlp.DecodeBytes(b, ethBlock); err != nil { - return nil, err - } - block := &Block{ - id: ids.NewID(ethBlock.Hash()), - ethBlock: ethBlock, - vm: vm, - } - vm.blockCache.Put(block.ID(), block) - return block, nil -} - -// GetBlock implements the snowman.ChainVM interface -func (vm *VM) GetBlock(id ids.ID) (snowman.Block, error) { - vm.metalock.Lock() - defer vm.metalock.Unlock() - - block := vm.getBlock(id) - if block == nil { - return nil, errUnknownBlock - } - return block, nil -} - -// SetPreference sets what the current tail of the chain is -func (vm *VM) SetPreference(blkID ids.ID) { - err := vm.chain.SetTail(blkID.Key()) - vm.ctx.Log.AssertNoError(err) -} - -// LastAccepted returns the ID of the block that was last accepted -func (vm *VM) LastAccepted() ids.ID { - vm.metalock.Lock() - defer vm.metalock.Unlock() - - return vm.lastAccepted.ID() -} - -// CreateHandlers makes new http handlers that can handle API calls -func (vm *VM) CreateHandlers() map[string]*commonEng.HTTPHandler { - handler := vm.chain.NewRPCHandler() - vm.chain.AttachEthService(handler, []string{"eth", "personal", "txpool"}) - handler.RegisterName("net", &NetAPI{vm}) - handler.RegisterName("snowman", &SnowmanAPI{vm}) - handler.RegisterName("web3", &Web3API{}) - handler.RegisterName("debug", &DebugAPI{vm}) - - return map[string]*commonEng.HTTPHandler{ - "/rpc": &commonEng.HTTPHandler{LockOptions: commonEng.NoLock, Handler: handler}, - "/ws": &commonEng.HTTPHandler{LockOptions: commonEng.NoLock, Handler: handler.WebsocketHandler([]string{"*"})}, - } -} - -// CreateStaticHandlers makes new http handlers that can handle API calls -func (vm *VM) CreateStaticHandlers() map[string]*commonEng.HTTPHandler { - handler := rpc.NewServer() - handler.RegisterName("static", &StaticService{}) - return map[string]*commonEng.HTTPHandler{ - "/rpc": &commonEng.HTTPHandler{LockOptions: commonEng.NoLock, Handler: handler}, - "/ws": &commonEng.HTTPHandler{LockOptions: commonEng.NoLock, Handler: handler.WebsocketHandler([]string{"*"})}, - } -} - -/* - ****************************************************************************** - *********************************** Helpers ********************************** - ****************************************************************************** - */ - -func (vm *VM) updateStatus(blockID ids.ID, status choices.Status) { - vm.metalock.Lock() - defer vm.metalock.Unlock() - - if status == choices.Accepted { - vm.lastAccepted = vm.getBlock(blockID) - // TODO: improve this naive implementation - if atomic.SwapUint32(&vm.writingMetadata, 1) == 0 { - go vm.ctx.Log.RecoverAndPanic(vm.writeBackMetadata) - } - } - vm.blockStatusCache.Put(blockID, status) -} - -func (vm *VM) getCachedBlock(blockID ids.ID) *types.Block { - return vm.chain.GetBlockByHash(blockID.Key()) -} - -func (vm *VM) tryBlockGen() error { - vm.bdlock.Lock() - defer vm.bdlock.Unlock() - if vm.bdGenFlag { - // skip if one call already generates a block in this round - return nil - } - vm.bdGenWaitFlag = true - - vm.genlock.Lock() - defer vm.genlock.Unlock() - // get pending size - size, err := vm.chain.PendingSize() - if err != nil { - return err - } - if size == 0 { - return nil - } - - switch vm.bdTimerState { - case bdTimerStateMin: - return nil - case bdTimerStateMax: - if size < batchSize { - return nil - } - case bdTimerStateLong: - // timeout; go ahead and generate a new block anyway - } - select { - case vm.networkChan <- commonEng.PendingTxs: - // successfully push out the notification; this round ends - vm.bdGenFlag = true - default: - return errBlockFrequency - } - return nil -} - -func (vm *VM) getCachedStatus(blockID ids.ID) choices.Status { - vm.metalock.Lock() - defer vm.metalock.Unlock() - status := choices.Processing - - if statusIntf, ok := vm.blockStatusCache.Get(blockID); ok { - status = statusIntf.(choices.Status) - } else { - blk := vm.chain.GetBlockByHash(blockID.Key()) - if blk == nil { - return choices.Unknown - } - acceptedBlk := vm.lastAccepted.ethBlock - - // TODO: There must be a better way of doing this. - // Traverse up the chain from the lower block until the indices match - highBlock := blk - lowBlock := acceptedBlk - if highBlock.Number().Cmp(lowBlock.Number()) < 0 { - highBlock, lowBlock = lowBlock, highBlock - } - for highBlock.Number().Cmp(lowBlock.Number()) > 0 { - highBlock = vm.chain.GetBlockByHash(highBlock.ParentHash()) - } - - if highBlock.Hash() == lowBlock.Hash() { // on the same branch - if blk.Number().Cmp(acceptedBlk.Number()) <= 0 { - status = choices.Accepted - } - } else { // on different branches - status = choices.Rejected - } - } - - vm.blockStatusCache.Put(blockID, status) - return status -} - -func (vm *VM) getBlock(id ids.ID) *Block { - if blockIntf, ok := vm.blockCache.Get(id); ok { - return blockIntf.(*Block) - } - ethBlock := vm.getCachedBlock(id) - if ethBlock == nil { - return nil - } - block := &Block{ - id: ids.NewID(ethBlock.Hash()), - ethBlock: ethBlock, - vm: vm, - } - vm.blockCache.Put(id, block) - return block -} - -func (vm *VM) issueRemoteTxs(txs []*types.Transaction) error { - errs := vm.chain.AddRemoteTxs(txs) - for _, err := range errs { - if err != nil { - return err - } - } - return vm.tryBlockGen() -} - -func (vm *VM) writeBackMetadata() { - vm.metalock.Lock() - defer vm.metalock.Unlock() - - b, err := rlp.EncodeToBytes(vm.lastAccepted.ethBlock.Hash()) - if err != nil { - vm.ctx.Log.Error("snowman-eth: error while writing back metadata") - return - } - vm.ctx.Log.Debug("writing back metadata") - vm.chaindb.Put([]byte(lastAcceptedKey), b) - atomic.StoreUint32(&vm.writingMetadata, 0) -} - -func (vm *VM) getLastAccepted() *Block { - vm.metalock.Lock() - defer vm.metalock.Unlock() - - return vm.lastAccepted -} diff --git a/plugin/evm/vm_genesis_parse_test.go b/plugin/evm/vm_genesis_parse_test.go deleted file mode 100644 index 9a113fb..0000000 --- a/plugin/evm/vm_genesis_parse_test.go +++ /dev/null @@ -1,32 +0,0 @@ -// (c) 2019-2020, Ava Labs, Inc. All rights reserved. -// See the file LICENSE for licensing terms. - -package evm - -import ( - "encoding/json" - "testing" - - "github.com/ava-labs/coreth/core" -) - -func TestParseGenesis(t *testing.T) { - genesis := []byte(`{"config":{"chainId":43110,"homesteadBlock":0,"daoForkBlock":0,"daoForkSupport":true,"eip150Block":0,"eip150Hash":"0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0","eip155Block":0,"eip158Block":0,"byzantiumBlock":0,"constantinopleBlock":0,"petersburgBlock":0},"nonce":"0x0","timestamp":"0x0","extraData":"0x00","gasLimit":"0x5f5e100","difficulty":"0x0","mixHash":"0x0000000000000000000000000000000000000000000000000000000000000000","coinbase":"0x0000000000000000000000000000000000000000","alloc":{"751a0b96e1042bee789452ecb20253fba40dbe85":{"balance":"0x33b2e3c9fd0804000000000"}},"number":"0x0","gasUsed":"0x0","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000"}`) - - genesisBlock := new(core.Genesis) - err := json.Unmarshal(genesis, genesisBlock) - if err != nil { - t.Fatal(err) - } - - marshalledBytes, err := json.Marshal(genesisBlock) - if err != nil { - t.Fatal(err) - } - - secondGenesisBlock := new(core.Genesis) - err = json.Unmarshal(marshalledBytes, secondGenesisBlock) - if err != nil { - t.Fatal(err) - } -} |