diff options
Diffstat (limited to 'plugin/evm')
| -rw-r--r-- | plugin/evm/block.go | 5 | ||||
| -rw-r--r-- | plugin/evm/error.go | 2 | ||||
| -rw-r--r-- | plugin/evm/export_tx_test.go | 4 | ||||
| -rw-r--r-- | plugin/evm/import_tx_test.go | 8 | ||||
| -rw-r--r-- | plugin/evm/service.go | 5 | ||||
| -rw-r--r-- | plugin/evm/vm.go | 181 | ||||
| -rw-r--r-- | plugin/evm/vm_test.go | 400 |
7 files changed, 525 insertions, 80 deletions
diff --git a/plugin/evm/block.go b/plugin/evm/block.go index 7c23c17..5a0d377 100644 --- a/plugin/evm/block.go +++ b/plugin/evm/block.go @@ -75,6 +75,11 @@ func (b *Block) Parent() snowman.Block { return &missing.Block{BlkID: parentID} } +// Height implements the snowman.Block interface +func (b *Block) Height() uint64 { + return b.ethBlock.Number().Uint64() +} + // Verify implements the snowman.Block interface func (b *Block) Verify() error { // Only enforce a minimum fee when bootstrapping has finished diff --git a/plugin/evm/error.go b/plugin/evm/error.go index 0554349..d65d28b 100644 --- a/plugin/evm/error.go +++ b/plugin/evm/error.go @@ -3,7 +3,7 @@ package evm -// TxError provides the ability for errors to be distinguished as permenant or +// TxError provides the ability for errors to be distinguished as permanent or // temporary type TxError interface { error diff --git a/plugin/evm/export_tx_test.go b/plugin/evm/export_tx_test.go index 6fdf3a2..c1ddcda 100644 --- a/plugin/evm/export_tx_test.go +++ b/plugin/evm/export_tx_test.go @@ -126,7 +126,3 @@ func TestExportTxVerify(t *testing.T) { t.Fatal("ExportTx should have failed verification due to invalid output") } } - -func TestExportTxSemanticVerify(t *testing.T) { - -} diff --git a/plugin/evm/import_tx_test.go b/plugin/evm/import_tx_test.go index 973802a..139aa4e 100644 --- a/plugin/evm/import_tx_test.go +++ b/plugin/evm/import_tx_test.go @@ -178,7 +178,7 @@ func TestImportTxSemanticVerify(t *testing.T) { Outs: []EVMOutput{evmOutput}, } - state, err := vm.chain.BlockState(vm.lastAccepted.ethBlock) + state, err := vm.chain.CurrentState() if err != nil { t.Fatalf("Failed to get last accepted stateDB due to: %s", err) } @@ -291,6 +291,12 @@ func TestImportTxSemanticVerify(t *testing.T) { func TestNewImportTx(t *testing.T) { _, vm, _, sharedMemory := GenesisVM(t, true) + defer func() { + if err := vm.Shutdown(); err != nil { + t.Fatal(err) + } + }() + importAmount := uint64(1000000) utxoID := avax.UTXOID{ TxID: ids.ID{ diff --git a/plugin/evm/service.go b/plugin/evm/service.go index 2bb06df..8c9e16c 100644 --- a/plugin/evm/service.go +++ b/plugin/evm/service.go @@ -24,7 +24,7 @@ import ( ) const ( - version = "coreth-v0.3.15" + version = "coreth-v0.3.17" ) // test constants @@ -330,7 +330,6 @@ func (service *AvaxAPI) GetUTXOs(r *http.Request, args *api.GetUTXOsArgs, reply return fmt.Errorf("number of addresses given, %d, exceeds maximum, %d", len(args.Addresses), maxGetUTXOsAddrs) } - sourceChain := ids.ID{} if args.SourceChain == "" { return errNoSourceChain } @@ -339,7 +338,7 @@ func (service *AvaxAPI) GetUTXOs(r *http.Request, args *api.GetUTXOsArgs, reply if err != nil { return fmt.Errorf("problem parsing source chainID %q: %w", args.SourceChain, err) } - sourceChain = chainID + sourceChain := chainID addrSet := ids.ShortSet{} for _, addrStr := range args.Addresses { diff --git a/plugin/evm/vm.go b/plugin/evm/vm.go index 58ab600..9335b51 100644 --- a/plugin/evm/vm.go +++ b/plugin/evm/vm.go @@ -69,19 +69,15 @@ const ( maxBlockTime = 1000 * time.Millisecond batchSize = 250 maxUTXOsToFetch = 1024 - blockCacheSize = 1 << 10 // 1024 + blockCacheSize = 1024 codecVersion = uint16(0) ) const ( - bdTimerStateMin = iota - bdTimerStateMax - bdTimerStateLong + txFee = units.MilliAvax ) var ( - txFee = units.MilliAvax - errEmptyBlock = errors.New("empty block") errCreateBlock = errors.New("couldn't create block") errUnknownBlock = errors.New("unknown block") @@ -103,6 +99,17 @@ var ( errInvalidNonce = errors.New("invalid nonce") ) +// mayBuildBlockStatus denotes whether the engine should be notified +// that a block should be built, or whether more time has to pass +// before doing so. See VM's [mayBuildBlock]. +type mayBuildBlockStatus uint8 + +const ( + waitToBuild mayBuildBlockStatus = iota + conditionalWaitToBuild + mayBuild +) + func maxDuration(x, y time.Duration) time.Duration { if x > y { return x @@ -145,37 +152,53 @@ type VM struct { CLIConfig CommandLineConfig - chainID *big.Int - networkID uint64 - genesisHash common.Hash - chain *coreth.ETHChain - chaindb Database - newBlockChan chan *Block - networkChan chan<- commonEng.Message - newMinedBlockSub *event.TypeMuxSubscription + chainID *big.Int + networkID uint64 + genesisHash common.Hash + chain *coreth.ETHChain + chaindb Database + newBlockChan chan *Block + // A message is sent on this channel when a new block + // is ready to be build. This notifies the consensus engine. + notifyBuildBlockChan chan<- commonEng.Message + newMinedBlockSub *event.TypeMuxSubscription acceptedDB database.Database - txPoolStabilizedHead common.Hash - txPoolStabilizedOk chan struct{} - txPoolStabilizedLock sync.Mutex - txPoolStabilizedShutdownChan chan struct{} + txPoolStabilizedLock sync.Mutex + txPoolStabilizedHead common.Hash + txPoolStabilizedOk chan struct{} metalock sync.Mutex blockCache, blockStatusCache cache.LRU lastAccepted *Block writingMetadata uint32 - bdlock sync.Mutex - blockDelayTimer *timer.Timer - bdTimerState int8 - bdGenWaitFlag bool - bdGenFlag bool + // [buildBlockLock] must be held when accessing [mayBuildBlock], + // [tryToBuildBlock] or [awaitingBuildBlock]. + buildBlockLock sync.Mutex + // [buildBlockTimer] periodically fires in order to update [mayBuildBlock] + // and to try to build a block, if applicable. + buildBlockTimer *timer.Timer + // [mayBuildBlock] == [wait] means that the next block may be built + // only after more time has elapsed. + // [mayBuildBlock] == [conditionalWait] means that the next block may be built + // only if it has more than [batchSize] txs in it. Otherwise, wait until more + // time has elapsed. + // [mayBuildBlock] == [build] means that the next block may be built + // at any time. + mayBuildBlock mayBuildBlockStatus + // If true, try to notify the engine that a block should be built. + // Engine may not be notified because [mayBuildBlock] says to wait. + tryToBuildBlock bool + // If true, the engine has been notified that it should build a block + // but has not done so yet. If this is the case, wait until it has + // built a block before notifying it again. + awaitingBuildBlock bool genlock sync.Mutex txSubmitChan <-chan struct{} atomicTxSubmitChan chan struct{} - shutdownSubmitChan chan struct{} baseCodec codec.Codec codec codec.Manager clock timer.Clock @@ -183,7 +206,8 @@ type VM struct { pendingAtomicTxs chan *Tx blockAtomicInputCache cache.LRU - shutdownWg sync.WaitGroup + shutdownChan chan struct{} + shutdownWg sync.WaitGroup fx secp256k1fx.Fx } @@ -232,6 +256,7 @@ func (vm *VM) Initialize( return errUnsupportedFXs } + vm.shutdownChan = make(chan struct{}, 1) vm.ctx = ctx vm.chaindb = Database{db} g := new(core.Genesis) @@ -329,32 +354,35 @@ func (vm *VM) Initialize( vm.blockStatusCache = cache.LRU{Size: blockCacheSize} vm.blockAtomicInputCache = cache.LRU{Size: blockCacheSize} 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 + vm.notifyBuildBlockChan = toEngine + + // Periodically updates [vm.mayBuildBlock] and tries to notify the engine to build + // a new block, if applicable. + vm.buildBlockTimer = timer.NewTimer(func() { + vm.buildBlockLock.Lock() + switch vm.mayBuildBlock { + case waitToBuild: + // Some time has passed. Allow block to be built if it has enough txs in it. + vm.mayBuildBlock = conditionalWaitToBuild + vm.buildBlockTimer.SetTimeoutIn(maxDuration(maxBlockTime-minBlockTime, 0)) + case conditionalWaitToBuild: + // More time has passed. Allow block to be built regardless of tx count. + vm.mayBuildBlock = mayBuild } - tryAgain := vm.bdGenWaitFlag - vm.bdlock.Unlock() - if tryAgain { + tryBuildBlock := vm.tryToBuildBlock + vm.buildBlockLock.Unlock() + if tryBuildBlock { vm.tryBlockGen() } }) - go ctx.Log.RecoverAndPanic(vm.blockDelayTimer.Dispatch) + go ctx.Log.RecoverAndPanic(vm.buildBlockTimer.Dispatch) - vm.bdTimerState = bdTimerStateLong - vm.bdGenWaitFlag = true + vm.mayBuildBlock = mayBuild + vm.tryToBuildBlock = true vm.txPoolStabilizedOk = make(chan struct{}, 1) - vm.txPoolStabilizedShutdownChan = make(chan struct{}, 1) // Signal goroutine to shutdown // TODO: read size from options vm.pendingAtomicTxs = make(chan *Tx, 1024) vm.atomicTxSubmitChan = make(chan struct{}, 1) - vm.shutdownSubmitChan = make(chan struct{}, 1) vm.newMinedBlockSub = vm.chain.SubscribeNewMinedBlockEvent() vm.shutdownWg.Add(1) go ctx.Log.RecoverAndPanic(vm.awaitTxPoolStabilized) @@ -401,7 +429,10 @@ func (vm *VM) Bootstrapping() error { return vm.fx.Bootstrapping() } // Bootstrapped notifies this VM that the consensus engine has finished // bootstrapping -func (vm *VM) Bootstrapped() error { return vm.fx.Bootstrapped() } +func (vm *VM) Bootstrapped() error { + vm.ctx.Bootstrapped() + return vm.fx.Bootstrapped() +} // Shutdown implements the snowman.ChainVM interface func (vm *VM) Shutdown() error { @@ -410,8 +441,8 @@ func (vm *VM) Shutdown() error { } vm.writeBackMetadata() - close(vm.txPoolStabilizedShutdownChan) - close(vm.shutdownSubmitChan) + vm.buildBlockTimer.Stop() + close(vm.shutdownChan) vm.chain.Stop() vm.shutdownWg.Wait() return nil @@ -421,18 +452,20 @@ func (vm *VM) Shutdown() error { func (vm *VM) BuildBlock() (snowman.Block, error) { vm.chain.GenBlock() block := <-vm.newBlockChan + + vm.buildBlockLock.Lock() + // Specify that we should wait before trying to build another block. + vm.mayBuildBlock = waitToBuild + vm.tryToBuildBlock = false + vm.awaitingBuildBlock = false + vm.buildBlockTimer.SetTimeoutIn(minBlockTime) + vm.buildBlockLock.Unlock() + 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() - log.Debug(fmt.Sprintf("built block %s", block.ID())) + log.Debug(fmt.Sprintf("Built block %s", block.ID())) // make sure Tx Pool is updated <-vm.txPoolStabilizedOk return block, nil @@ -573,13 +606,14 @@ func (vm *VM) updateStatus(blockID ids.ID, status choices.Status) { } 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 + vm.buildBlockLock.Lock() + defer vm.buildBlockLock.Unlock() + if vm.awaitingBuildBlock { + // We notified the engine that a block should be built but it hasn't + // done so yet. Wait until it has done so before notifying again. return nil } - vm.bdGenWaitFlag = true + vm.tryToBuildBlock = true vm.genlock.Lock() defer vm.genlock.Unlock() @@ -592,20 +626,21 @@ func (vm *VM) tryBlockGen() error { return nil } - switch vm.bdTimerState { - case bdTimerStateMin: + switch vm.mayBuildBlock { + case waitToBuild: // Wait more time before notifying engine to building a block return nil - case bdTimerStateMax: + case conditionalWaitToBuild: // Notify engine only if there are enough pending txs if size < batchSize { return nil } - case bdTimerStateLong: - // timeout; go ahead and generate a new block anyway + case mayBuild: // Notify engine + default: + panic(fmt.Sprintf("mayBuildBlock has unexpected value %d", vm.mayBuildBlock)) } select { - case vm.networkChan <- commonEng.PendingTxs: - // successfully push out the notification; this round ends - vm.bdGenFlag = true + case vm.notifyBuildBlockChan <- commonEng.PendingTxs: + // Notify engine to build a block + vm.awaitingBuildBlock = true default: return errBlockFrequency } @@ -734,12 +769,18 @@ func (vm *VM) writeBackMetadata() { // awaitTxPoolStabilized waits for a txPoolHead channel event // and notifies the VM when the tx pool has stabilized to the // expected block hash -// Waits for signal to shutdown from txPoolStabilizedShutdownChan chan +// Waits for signal to shutdown from [vm.shutdownChan] func (vm *VM) awaitTxPoolStabilized() { defer vm.shutdownWg.Done() for { select { - case e := <-vm.newMinedBlockSub.Chan(): + case e, ok := <-vm.newMinedBlockSub.Chan(): + if !ok { + return + } + if e == nil { + continue + } switch h := e.Data.(type) { case core.NewMinedBlockEvent: vm.txPoolStabilizedLock.Lock() @@ -750,7 +791,7 @@ func (vm *VM) awaitTxPoolStabilized() { vm.txPoolStabilizedLock.Unlock() default: } - case <-vm.txPoolStabilizedShutdownChan: + case <-vm.shutdownChan: return } } @@ -769,7 +810,7 @@ func (vm *VM) awaitSubmittedTxs() { vm.tryBlockGen() case <-time.After(5 * time.Second): vm.tryBlockGen() - case <-vm.shutdownSubmitChan: + case <-vm.shutdownChan: return } } diff --git a/plugin/evm/vm_test.go b/plugin/evm/vm_test.go index 0e9c102..dbceb1b 100644 --- a/plugin/evm/vm_test.go +++ b/plugin/evm/vm_test.go @@ -4,20 +4,30 @@ package evm import ( + "crypto/rand" "encoding/json" + "math/big" "testing" + "time" "github.com/ava-labs/avalanchego/api/keystore" + "github.com/ava-labs/avalanchego/cache" "github.com/ava-labs/avalanchego/chains/atomic" "github.com/ava-labs/avalanchego/database/memdb" "github.com/ava-labs/avalanchego/database/prefixdb" "github.com/ava-labs/avalanchego/ids" "github.com/ava-labs/avalanchego/snow" + "github.com/ava-labs/avalanchego/snow/choices" engCommon "github.com/ava-labs/avalanchego/snow/engine/common" "github.com/ava-labs/avalanchego/utils/crypto" "github.com/ava-labs/avalanchego/utils/formatting" "github.com/ava-labs/avalanchego/utils/logging" + "github.com/ava-labs/avalanchego/vms/components/avax" + "github.com/ava-labs/avalanchego/vms/secp256k1fx" + "github.com/ava-labs/coreth" "github.com/ava-labs/coreth/core" + "github.com/ava-labs/coreth/core/types" + "github.com/ava-labs/coreth/params" "github.com/ethereum/go-ethereum/common" ) @@ -130,9 +140,397 @@ func GenesisVM(t *testing.T, finishBootstrapping bool) (chan engCommon.Message, t.Fatal(err) } + if finishBootstrapping { + if err := vm.Bootstrapping(); err != nil { + t.Fatal(err) + } + + if err := vm.Bootstrapped(); err != nil { + t.Fatal(err) + } + } + return issuer, vm, genesisBytes, m } func TestVMGenesis(t *testing.T) { - _, _, _, _ = GenesisVM(t, true) + _, vm, _, _ := GenesisVM(t, true) + + shutdownChan := make(chan error, 1) + shutdownFunc := func() { + err := vm.Shutdown() + shutdownChan <- err + } + + go shutdownFunc() + shutdownTimeout := 10 * time.Millisecond + ticker := time.NewTicker(shutdownTimeout) + select { + case <-ticker.C: + t.Fatalf("VM shutdown took longer than timeout: %v", shutdownTimeout) + case err := <-shutdownChan: + if err != nil { + t.Fatalf("Shutdown errored: %s", err) + } + } +} + +func TestIssueAtomicTxs(t *testing.T) { + issuer, vm, _, sharedMemory := GenesisVM(t, true) + + defer func() { + if err := vm.Shutdown(); err != nil { + t.Fatal(err) + } + }() + + importAmount := uint64(10000000) + utxoID := avax.UTXOID{ + TxID: ids.ID{ + 0x0f, 0x2f, 0x4f, 0x6f, 0x8e, 0xae, 0xce, 0xee, + 0x0d, 0x2d, 0x4d, 0x6d, 0x8c, 0xac, 0xcc, 0xec, + 0x0b, 0x2b, 0x4b, 0x6b, 0x8a, 0xaa, 0xca, 0xea, + 0x09, 0x29, 0x49, 0x69, 0x88, 0xa8, 0xc8, 0xe8, + }, + } + + utxo := &avax.UTXO{ + UTXOID: utxoID, + Asset: avax.Asset{ID: vm.ctx.AVAXAssetID}, + Out: &secp256k1fx.TransferOutput{ + Amt: importAmount, + OutputOwners: secp256k1fx.OutputOwners{ + Threshold: 1, + Addrs: []ids.ShortID{testKeys[0].PublicKey().Address()}, + }, + }, + } + utxoBytes, err := vm.codec.Marshal(codecVersion, utxo) + if err != nil { + t.Fatal(err) + } + + xChainSharedMemory := sharedMemory.NewSharedMemory(vm.ctx.XChainID) + inputID := utxo.InputID() + if err := xChainSharedMemory.Put(vm.ctx.ChainID, []*atomic.Element{{ + Key: inputID[:], + Value: utxoBytes, + Traits: [][]byte{ + testKeys[0].PublicKey().Address().Bytes(), + }, + }}); err != nil { + t.Fatal(err) + } + + importTx, err := vm.newImportTx(vm.ctx.XChainID, testEthAddrs[0], []*crypto.PrivateKeySECP256K1R{testKeys[0]}) + if err != nil { + t.Fatal(err) + } + + if err := vm.issueTx(importTx); err != nil { + t.Fatal(err) + } + + <-issuer + + blk, err := vm.BuildBlock() + if err != nil { + t.Fatal(err) + } + + if err := blk.Verify(); err != nil { + t.Fatal(err) + } + + if status := blk.Status(); status != choices.Processing { + t.Fatalf("Expected status of built block to be %s, but found %s", choices.Processing, status) + } + + if err := blk.Accept(); err != nil { + t.Fatal(err) + } + + if status := blk.Status(); status != choices.Accepted { + t.Fatalf("Expected status of accepted block to be %s, but found %s", choices.Accepted, status) + } + + lastAcceptedID := vm.LastAccepted() + if lastAcceptedID != blk.ID() { + t.Fatalf("Expected last accepted blockID to be the accepted block: %s, but found %s", blk.ID(), lastAcceptedID) + } + + exportTx, err := vm.newExportTx(vm.ctx.AVAXAssetID, importAmount-vm.txFee-1, vm.ctx.XChainID, testShortIDAddrs[0], []*crypto.PrivateKeySECP256K1R{testKeys[0]}) + if err != nil { + t.Fatal(err) + } + + if err := vm.issueTx(exportTx); err != nil { + t.Fatal(err) + } + + <-issuer + + blk2, err := vm.BuildBlock() + if err != nil { + t.Fatal(err) + } + + if err := blk2.Verify(); err != nil { + t.Fatal(err) + } + + if status := blk2.Status(); status != choices.Processing { + t.Fatalf("Expected status of built block to be %s, but found %s", choices.Processing, status) + } + + if err := blk2.Accept(); err != nil { + t.Fatal(err) + } + + if status := blk2.Status(); status != choices.Accepted { + t.Fatalf("Expected status of accepted block to be %s, but found %s", choices.Accepted, status) + } + + lastAcceptedID = vm.LastAccepted() + if lastAcceptedID != blk2.ID() { + t.Fatalf("Expected last accepted blockID to be the accepted block: %s, but found %s", blk2.ID(), lastAcceptedID) + } +} + +func TestBuildEthTxBlock(t *testing.T) { + issuer, vm, _, sharedMemory := GenesisVM(t, true) + + defer func() { + if err := vm.Shutdown(); err != nil { + t.Fatal(err) + } + }() + + key, err := coreth.NewKey(rand.Reader) + if err != nil { + t.Fatal(err) + } + + importAmount := uint64(10000000) + utxoID := avax.UTXOID{ + TxID: ids.ID{ + 0x0f, 0x2f, 0x4f, 0x6f, 0x8e, 0xae, 0xce, 0xee, + 0x0d, 0x2d, 0x4d, 0x6d, 0x8c, 0xac, 0xcc, 0xec, + 0x0b, 0x2b, 0x4b, 0x6b, 0x8a, 0xaa, 0xca, 0xea, + 0x09, 0x29, 0x49, 0x69, 0x88, 0xa8, 0xc8, 0xe8, + }, + } + + utxo := &avax.UTXO{ + UTXOID: utxoID, + Asset: avax.Asset{ID: vm.ctx.AVAXAssetID}, + Out: &secp256k1fx.TransferOutput{ + Amt: importAmount, + OutputOwners: secp256k1fx.OutputOwners{ + Threshold: 1, + Addrs: []ids.ShortID{testKeys[0].PublicKey().Address()}, + }, + }, + } + utxoBytes, err := vm.codec.Marshal(codecVersion, utxo) + if err != nil { + t.Fatal(err) + } + + xChainSharedMemory := sharedMemory.NewSharedMemory(vm.ctx.XChainID) + inputID := utxo.InputID() + if err := xChainSharedMemory.Put(vm.ctx.ChainID, []*atomic.Element{{ + Key: inputID[:], + Value: utxoBytes, + Traits: [][]byte{ + testKeys[0].PublicKey().Address().Bytes(), + }, + }}); err != nil { + t.Fatal(err) + } + + importTx, err := vm.newImportTx(vm.ctx.XChainID, key.Address, []*crypto.PrivateKeySECP256K1R{testKeys[0]}) + if err != nil { + t.Fatal(err) + } + + if err := vm.issueTx(importTx); err != nil { + t.Fatal(err) + } + + <-issuer + + blk, err := vm.BuildBlock() + if err != nil { + t.Fatal(err) + } + + if err := blk.Verify(); err != nil { + t.Fatal(err) + } + + if status := blk.Status(); status != choices.Processing { + t.Fatalf("Expected status of built block to be %s, but found %s", choices.Processing, status) + } + + if err := blk.Accept(); err != nil { + t.Fatal(err) + } + + txs := make([]*types.Transaction, 10) + for i := 0; i < 10; i++ { + tx := types.NewTransaction(uint64(i), key.Address, big.NewInt(10), 21000, params.MinGasPrice, nil) + signedTx, err := types.SignTx(tx, types.NewEIP155Signer(vm.chainID), key.PrivateKey) + if err != nil { + t.Fatal(err) + } + txs[i] = signedTx + } + errs := vm.chain.AddRemoteTxs(txs) + for i, err := range errs { + if err != nil { + t.Fatalf("Failed to add tx at index %d: %s", i, err) + } + } + + <-issuer + + blk, err = vm.BuildBlock() + if err != nil { + t.Fatal(err) + } + + if err := blk.Verify(); err != nil { + t.Fatal(err) + } + + if status := blk.Status(); status != choices.Processing { + t.Fatalf("Expected status of built block to be %s, but found %s", choices.Processing, status) + } + + if err := blk.Accept(); err != nil { + t.Fatal(err) + } + + if status := blk.Status(); status != choices.Accepted { + t.Fatalf("Expected status of accepted block to be %s, but found %s", choices.Accepted, status) + } + + lastAcceptedID := vm.LastAccepted() + if lastAcceptedID != blk.ID() { + t.Fatalf("Expected last accepted blockID to be the accepted block: %s, but found %s", blk.ID(), lastAcceptedID) + } +} + +func TestConflictingImportTxs(t *testing.T) { + issuer, vm, _, sharedMemory := GenesisVM(t, true) + + defer func() { + if err := vm.Shutdown(); err != nil { + t.Fatal(err) + } + }() + + conflictKey, err := coreth.NewKey(rand.Reader) + if err != nil { + t.Fatal(err) + } + + xChainSharedMemory := sharedMemory.NewSharedMemory(vm.ctx.XChainID) + importTxs := make([]*Tx, 0, 3) + conflictTxs := make([]*Tx, 0, 3) + for i, key := range testKeys { + importAmount := uint64(10000000) + utxoID := avax.UTXOID{ + TxID: ids.ID{byte(i)}, + } + + utxo := &avax.UTXO{ + UTXOID: utxoID, + Asset: avax.Asset{ID: vm.ctx.AVAXAssetID}, + Out: &secp256k1fx.TransferOutput{ + Amt: importAmount, + OutputOwners: secp256k1fx.OutputOwners{ + Threshold: 1, + Addrs: []ids.ShortID{key.PublicKey().Address()}, + }, + }, + } + utxoBytes, err := vm.codec.Marshal(codecVersion, utxo) + if err != nil { + t.Fatal(err) + } + + inputID := utxo.InputID() + if err := xChainSharedMemory.Put(vm.ctx.ChainID, []*atomic.Element{{ + Key: inputID[:], + Value: utxoBytes, + Traits: [][]byte{ + key.PublicKey().Address().Bytes(), + }, + }}); err != nil { + t.Fatal(err) + } + + importTx, err := vm.newImportTx(vm.ctx.XChainID, testEthAddrs[i], []*crypto.PrivateKeySECP256K1R{key}) + if err != nil { + t.Fatal(err) + } + importTxs = append(importTxs, importTx) + + conflictTx, err := vm.newImportTx(vm.ctx.XChainID, conflictKey.Address, []*crypto.PrivateKeySECP256K1R{key}) + if err != nil { + t.Fatal(err) + } + conflictTxs = append(conflictTxs, conflictTx) + } + + expectedParentBlkID := vm.LastAccepted() + for i, tx := range importTxs { + if err := vm.issueTx(tx); err != nil { + t.Fatal(err) + } + + <-issuer + + blk, err := vm.BuildBlock() + if err != nil { + t.Fatal(err) + } + + if err := blk.Verify(); err != nil { + t.Fatal(err) + } + + if status := blk.Status(); status != choices.Processing { + t.Fatalf("Expected status of built block %d to be %s, but found %s", i, choices.Processing, status) + } + + if parentID := blk.Parent().ID(); parentID != expectedParentBlkID { + t.Fatalf("Expected parent to have blockID %s, but found %s", expectedParentBlkID, parentID) + } + + expectedParentBlkID = blk.ID() + vm.SetPreference(blk.ID()) + } + + // Shrink the atomic input cache to ensure that + // verification handles cache misses correctly. + vm.blockAtomicInputCache = cache.LRU{Size: 1} + + for i, tx := range conflictTxs { + if err := vm.issueTx(tx); err != nil { + t.Fatal(err) + } + + <-issuer + + _, err := vm.BuildBlock() + // The new block is verified in BuildBlock, so + // BuildBlock should fail due to an attempt to + // double spend an atomic UTXO. + if err == nil { + t.Fatalf("Block verification should have failed in BuildBlock %d due to double spending atomic UTXO", i) + } + } } |