// submitBlock submits the passed block to network after ensuring it passes all
// of the consensus validation rules.
func (m *CPUMiner) submitBlock(block *dcrutil.Block) bool {
m.submitBlockLock.Lock()
defer m.submitBlockLock.Unlock()
_, latestHeight := m.server.blockManager.chainState.Best()
// Be sure to set this so ProcessBlock doesn't fail! - Decred
block.SetHeight(latestHeight + 1)
// Process this block using the same rules as blocks coming from other
// nodes. This will in turn relay it to the network like normal.
isOrphan, err := m.server.blockManager.ProcessBlock(block, blockchain.BFNone)
if err != nil {
// Anything other than a rule violation is an unexpected error,
// so log that error as an internal error.
if rErr, ok := err.(blockchain.RuleError); !ok {
minrLog.Errorf("Unexpected error while processing "+
"block submitted via CPU miner: %v", err)
return false
} else {
// Occasionally errors are given out for timing errors with
// ResetMinDifficulty and high block works that is above
// the target. Feed these to debug.
if m.server.chainParams.ResetMinDifficulty &&
rErr.ErrorCode == blockchain.ErrHighHash {
minrLog.Debugf("Block submitted via CPU miner rejected "+
"because of ResetMinDifficulty time sync failure: %v",
err)
return false
} else {
// Other rule errors should be reported.
minrLog.Errorf("Block submitted via CPU miner rejected: %v", err)
return false
}
}
}
if isOrphan {
minrLog.Errorf("Block submitted via CPU miner is an orphan building "+
"on parent %v", block.MsgBlock().Header.PrevBlock)
return false
}
// The block was accepted.
coinbaseTxOuts := block.MsgBlock().Transactions[0].TxOut
coinbaseTxGenerated := int64(0)
for _, out := range coinbaseTxOuts {
coinbaseTxGenerated += out.Value
}
minrLog.Infof("Block submitted via CPU miner accepted (hash %s, "+
"height %v, amount %v)",
block.Sha(),
block.Height(),
dcrutil.Amount(coinbaseTxGenerated))
return true
}
// ticketsRevokedInBlock fetches a list of tickets that were revoked in the
// block.
func ticketsRevokedInBlock(bl *dcrutil.Block) []chainhash.Hash {
var tickets []chainhash.Hash
for _, stx := range bl.MsgBlock().STransactions {
if stake.DetermineTxType(stx) == stake.TxTypeSSRtx {
tickets = append(tickets, stx.TxIn[0].PreviousOutPoint.Hash)
}
}
return tickets
}
// ticketsSpentInBlock finds all the tickets spent in the block.
func ticketsSpentInBlock(bl *dcrutil.Block) []chainhash.Hash {
tickets := make([]chainhash.Hash, 0)
for _, stx := range bl.STransactions() {
if DetermineTxType(stx.MsgTx()) == TxTypeSSGen {
tickets = append(tickets, stx.MsgTx().TxIn[1].PreviousOutPoint.Hash)
}
}
return tickets
}
// voteVersionsInBlock returns all versions in a block.
func voteVersionsInBlock(bl *dcrutil.Block, params *chaincfg.Params) []uint32 {
versions := make([]uint32, 0, params.TicketsPerBlock)
for _, stx := range bl.MsgBlock().STransactions {
if is, _ := stake.IsSSGen(stx); !is {
continue
}
versions = append(versions, stake.SSGenVersion(stx))
}
return versions
}
// ticketsInBlock finds all the new tickets in the block.
func ticketsInBlock(bl *dcrutil.Block) []chainhash.Hash {
tickets := make([]chainhash.Hash, 0)
for _, stx := range bl.STransactions() {
if DetermineTxType(stx.MsgTx()) == TxTypeSStx {
h := stx.Sha()
tickets = append(tickets, *h)
}
}
return tickets
}
// unspendStakeTxTree returns all outpoints spent before this one
// in the block's tx tree stake. used for unspending the stake tx
// tree to evaluate tx tree regular of prev block.
func unspendStakeTxTree(block *dcrutil.Block) map[wire.OutPoint]struct{} {
unspentOps := make(map[wire.OutPoint]struct{})
for _, tx := range block.STransactions() {
for _, txIn := range tx.MsgTx().TxIn {
unspentOps[txIn.PreviousOutPoint] = struct{}{}
}
}
return unspentOps
}
// votesInBlock finds all the votes in the block.
func votesInBlock(bl *dcrutil.Block) []chainhash.Hash {
votes := make([]chainhash.Hash, 0)
for _, stx := range bl.STransactions() {
if DetermineTxType(stx.MsgTx()) == TxTypeSSGen {
h := stx.Sha()
votes = append(votes, *h)
}
}
return votes
}
// dbIndexDisconnectBlock removes all of the index entries associated with the
// given block using the provided indexer and updates the tip of the indexer
// accordingly. An error will be returned if the current tip for the indexer is
// not the passed block.
func dbIndexDisconnectBlock(dbTx database.Tx, indexer Indexer, block, parent *dcrutil.Block, view *blockchain.UtxoViewpoint) error {
// Assert that the block being disconnected is the current tip of the
// index.
idxKey := indexer.Key()
curTipHash, _, err := dbFetchIndexerTip(dbTx, idxKey)
if err != nil {
return err
}
if !curTipHash.IsEqual(block.Sha()) {
return AssertError(fmt.Sprintf("dbIndexDisconnectBlock must "+
"be called with the block at the current index tip "+
"(%s, tip %s, block %s)", indexer.Name(),
curTipHash, block.Sha()))
}
// Notify the indexer with the disconnected block so it can remove all
// of the appropriate entries.
if err := indexer.DisconnectBlock(dbTx, block, parent, view); err != nil {
return err
}
// Update the current index tip.
prevHash := &block.MsgBlock().Header.PrevBlock
return dbPutIndexerTip(dbTx, idxKey, prevHash, uint32(block.Height())-1)
}
// checkBlockContext peforms several validation checks on the block which depend
// on its position within the block chain.
//
// The flags modify the behavior of this function as follows:
// - BFFastAdd: The transaction are not checked to see if they are finalized
// and the somewhat expensive duplication transaction check is not performed.
//
// The flags are also passed to checkBlockHeaderContext. See its documentation
// for how the flags modify its behavior.
func (b *BlockChain) checkBlockContext(block *dcrutil.Block, prevNode *blockNode,
flags BehaviorFlags) error {
// The genesis block is valid by definition.
if prevNode == nil {
return nil
}
// Perform all block header related validation checks.
header := &block.MsgBlock().Header
err := b.checkBlockHeaderContext(header, prevNode, flags)
if err != nil {
return err
}
fastAdd := flags&BFFastAdd == BFFastAdd
if !fastAdd {
// The height of this block is one more than the referenced
// previous block.
blockHeight := prevNode.height + 1
// Ensure all transactions in the block are finalized.
for _, tx := range block.Transactions() {
if !IsFinalizedTransaction(tx, blockHeight,
header.Timestamp) {
str := fmt.Sprintf("block contains unfinalized regular "+
"transaction %v", tx.Sha())
return ruleError(ErrUnfinalizedTx, str)
}
}
for _, stx := range block.STransactions() {
if !IsFinalizedTransaction(stx, blockHeight,
header.Timestamp) {
str := fmt.Sprintf("block contains unfinalized stake "+
"transaction %v", stx.Sha())
return ruleError(ErrUnfinalizedTx, str)
}
}
// Check that the node is at the correct height in the blockchain,
// as specified in the block header.
if blockHeight != int64(block.MsgBlock().Header.Height) {
errStr := fmt.Sprintf("Block header height invalid; expected %v"+
" but %v was found", blockHeight, header.Height)
return ruleError(ErrBadBlockHeight, errStr)
}
// Check that the coinbase contains at minimum the block
// height in output 1.
if blockHeight > 1 {
err := checkCoinbaseUniqueHeight(blockHeight, block)
if err != nil {
return err
}
}
}
return nil
}
// SubmitBlockAsync returns an instance of a type that can be used to get the
// result of the RPC at some future time by invoking the Receive function on the
// returned instance.
//
// See SubmitBlock for the blocking version and more details.
func (c *Client) SubmitBlockAsync(block *dcrutil.Block, options *dcrjson.SubmitBlockOptions) FutureSubmitBlockResult {
blockHex := ""
if block != nil {
blockBytes, err := block.Bytes()
if err != nil {
return newFutureError(err)
}
blockHex = hex.EncodeToString(blockBytes)
}
cmd := dcrjson.NewSubmitBlockCmd(blockHex, options)
return c.sendCmd(cmd)
}
// InsertBlock synchronously queues a newly solved block to have its
// transactions indexed by address.
func (a *addrIndexer) InsertBlock(block *dcrutil.Block, parent *dcrutil.Block) error {
addrIndex, err := a.indexBlockAddrs(block, parent)
if err != nil {
return fmt.Errorf("Unable to index transactions of"+
" block: %v", err)
}
err = a.server.db.UpdateAddrIndexForBlock(block.Sha(),
block.Height(),
addrIndex)
if err != nil {
return fmt.Errorf("Unable to insert block: %v", err.Error())
}
return nil
}
// DisconnectBlock is invoked by the index manager when a block has been
// disconnected from the main chain. This indexer removes the
// hash-to-transaction mapping for every transaction in the block.
//
// This is part of the Indexer interface.
func (idx *TxIndex) DisconnectBlock(dbTx database.Tx, block, parent *dcrutil.Block, view *blockchain.UtxoViewpoint) error {
// Remove all of the transactions in the block from the index.
if err := dbRemoveTxIndexEntries(dbTx, block, parent); err != nil {
return err
}
// Remove the block ID index entry for the block being disconnected and
// decrement the current internal block ID to account for it.
blockSha := block.Sha()
if err := dbRemoveBlockIDIndexEntry(dbTx, *blockSha); err != nil {
return err
}
idx.curBlockID--
return nil
}
// unspendInflightTxTree returns all outpoints spent that reference internal
// transactions in a TxTreeRegular.
func unspendInflightTxTree(block *dcrutil.Block) map[wire.OutPoint]struct{} {
unspentOps := make(map[wire.OutPoint]struct{})
allTxHashes := make(map[chainhash.Hash]struct{})
for _, tx := range block.Transactions() {
h := tx.Sha()
allTxHashes[*h] = struct{}{}
}
for _, tx := range block.Transactions() {
for _, txIn := range tx.MsgTx().TxIn {
if _, isLocal := allTxHashes[txIn.PreviousOutPoint.Hash]; isLocal {
unspentOps[txIn.PreviousOutPoint] = struct{}{}
}
}
}
return unspentOps
}
// ConnectBlock is invoked by the index manager when a new block has been
// connected to the main chain. This indexer adds a hash-to-transaction mapping
// for every transaction in the passed block.
//
// This is part of the Indexer interface.
func (idx *TxIndex) ConnectBlock(dbTx database.Tx, block, parent *dcrutil.Block, view *blockchain.UtxoViewpoint) error {
// Increment the internal block ID to use for the block being connected
// and add all of the transactions in the block to the index.
newBlockID := idx.curBlockID + 1
if err := dbAddTxIndexEntries(dbTx, block, parent, newBlockID); err != nil {
return err
}
// Add the new block ID index entry for the block being connected and
// update the current internal block ID accordingly.
blockSha := block.Sha()
err := dbPutBlockIDIndexEntry(dbTx, *blockSha, newBlockID)
if err != nil {
return err
}
idx.curBlockID = newBlockID
return nil
}
// checkBlockScripts executes and validates the scripts for all transactions in
// the passed block using multiple goroutines.
// txTree = true is TxTreeRegular, txTree = false is TxTreeStake.
func checkBlockScripts(block *dcrutil.Block, utxoView *UtxoViewpoint, txTree bool,
scriptFlags txscript.ScriptFlags, sigCache *txscript.SigCache) error {
// Collect all of the transaction inputs and required information for
// validation for all transactions in the block into a single slice.
numInputs := 0
var txs []*dcrutil.Tx
// TxTreeRegular handling.
if txTree {
txs = block.Transactions()
} else { // TxTreeStake
txs = block.STransactions()
}
for _, tx := range txs {
numInputs += len(tx.MsgTx().TxIn)
}
txValItems := make([]*txValidateItem, 0, numInputs)
for _, tx := range txs {
for txInIdx, txIn := range tx.MsgTx().TxIn {
// Skip coinbases.
if txIn.PreviousOutPoint.Index == math.MaxUint32 {
continue
}
txVI := &txValidateItem{
txInIndex: txInIdx,
txIn: txIn,
tx: tx,
}
txValItems = append(txValItems, txVI)
}
}
// Validate all of the inputs.
validator := newTxValidator(utxoView, scriptFlags, sigCache)
if err := validator.Validate(txValItems); err != nil {
return err
}
return nil
}
// getRegTreeOpsSpentBeforeThisOp returns all outpoints spent before this one
// in the block's tx tree regular. used for checking vs in flight tx.
func getRegTreeOpsSpentBeforeThisOp(block *dcrutil.Block, idx int, txinIdx int) map[wire.OutPoint]struct{} {
spentOps := make(map[wire.OutPoint]struct{})
thisTx := block.Transactions()[idx]
for i, txIn := range thisTx.MsgTx().TxIn {
if i < txinIdx {
spentOps[txIn.PreviousOutPoint] = struct{}{}
}
}
for i, tx := range block.Transactions() {
if i < idx {
for _, txIn := range tx.MsgTx().TxIn {
spentOps[txIn.PreviousOutPoint] = struct{}{}
}
}
}
return spentOps
}
// testExistsTxSha ensures ExistsTxSha conforms to the interface contract.
func testExistsTxSha(tc *testContext) bool {
var blockPrev *dcrutil.Block = nil
// Decred: WARNING. This function assumes that all block insertion calls have
// dcrutil.blocks passed to them with block.blockHeight set correctly. However,
// loading the genesis block in dcrd didn't do this (via block manager); pre-
// production it should be established that all calls to this function pass
// blocks with block.blockHeight set correctly.
if tc.block.Height() != 0 {
var errBlockPrev error
blockPrev, errBlockPrev = tc.db.FetchBlockBySha(&tc.block.MsgBlock().Header.PrevBlock)
if errBlockPrev != nil {
blockSha := tc.block.Sha()
tc.t.Errorf("Failed to fetch parent block of block %v", blockSha)
}
}
votebits := tc.block.MsgBlock().Header.VoteBits
if dcrutil.IsFlagSet16(votebits, dcrutil.BlockValid) && blockPrev != nil {
for i, tx := range blockPrev.Transactions() {
// The transaction must exist in the database.
txHash := tx.Sha()
exists, err := tc.db.ExistsTxSha(txHash)
if err != nil {
tc.t.Errorf("ExistsTxSha (%s): block #%d (%s) tx #%d "+
"(%s) unexpected error: %v", tc.dbType,
tc.blockHeight, tc.blockHash, i, txHash, err)
return false
}
if !exists {
_, err := tc.db.FetchTxBySha(txHash)
if err != nil {
tc.t.Errorf("ExistsTxSha (%s): block #%d (%s) "+
"tx #%d (%s) does not exist", tc.dbType,
tc.blockHeight, tc.blockHash, i, txHash)
}
return false
}
}
}
return true
}
// LogBlockHeight logs a new block height as an information message to show
// progress to the user. In order to prevent spam, it limits logging to one
// message every 10 seconds with duration and totals included.
func (b *blockProgressLogger) LogBlockHeight(block *dcrutil.Block) {
b.Lock()
defer b.Unlock()
b.receivedLogBlocks++
b.receivedLogTx += int64(len(block.MsgBlock().Transactions))
now := time.Now()
duration := now.Sub(b.lastBlockLogTime)
if duration < time.Second*10 {
return
}
// Truncate the duration to 10s of milliseconds.
durationMillis := int64(duration / time.Millisecond)
tDuration := 10 * time.Millisecond * time.Duration(durationMillis/10)
// Log information about new block height.
blockStr := "blocks"
if b.receivedLogBlocks == 1 {
blockStr = "block"
}
txStr := "transactions"
if b.receivedLogTx == 1 {
txStr = "transaction"
}
b.subsystemLogger.Infof("%s %d %s in the last %s (%d %s, height %d, %s)",
b.progressAction, b.receivedLogBlocks, blockStr, tDuration, b.receivedLogTx,
txStr, block.Height(), block.MsgBlock().Header.Timestamp)
b.receivedLogBlocks = 0
b.receivedLogTx = 0
b.lastBlockLogTime = now
}
// loadReorgBlocks reads files containing decred block data (bzipped but
// otherwise in the format bitcoind writes) from disk and returns them as an
// array of dcrutil.Block. This is copied from the blockchain package, which
// itself largely borrowed it from the test code in this package.
func loadReorgBlocks(filename string) ([]*dcrutil.Block, error) {
filename = filepath.Join("../blockchain/testdata/", filename)
fi, err := os.Open(filename)
if err != nil {
return nil, err
}
bcStream := bzip2.NewReader(fi)
defer fi.Close()
// Create a buffer of the read file
bcBuf := new(bytes.Buffer)
bcBuf.ReadFrom(bcStream)
// Create decoder from the buffer and a map to store the data
bcDecoder := gob.NewDecoder(bcBuf)
blockchain := make(map[int64][]byte)
// Decode the blockchain into the map
if err := bcDecoder.Decode(&blockchain); err != nil {
return nil, err
}
var block *dcrutil.Block
blocks := make([]*dcrutil.Block, 0, len(blockchain))
for height := int64(0); height < int64(len(blockchain)); height++ {
block, err = dcrutil.NewBlockFromBytes(blockchain[height])
if err != nil {
return blocks, err
}
block.SetHeight(height)
blocks = append(blocks, block)
}
return blocks, nil
}
// dbIndexConnectBlock adds all of the index entries associated with the
// given block using the provided indexer and updates the tip of the indexer
// accordingly. An error will be returned if the current tip for the indexer is
// not the previous block for the passed block.
func dbIndexConnectBlock(dbTx database.Tx, indexer Indexer, block, parent *dcrutil.Block, view *blockchain.UtxoViewpoint) error {
// Assert that the block being connected properly connects to the
// current tip of the index.
idxKey := indexer.Key()
curTipHash, _, err := dbFetchIndexerTip(dbTx, idxKey)
if err != nil {
return err
}
if !curTipHash.IsEqual(&block.MsgBlock().Header.PrevBlock) {
return AssertError(fmt.Sprintf("dbIndexConnectBlock must be "+
"called with a block that extends the current index "+
"tip (%s, tip %s, block %s)", indexer.Name(),
curTipHash, block.Sha()))
}
// Notify the indexer with the connected block so it can index it.
if err := indexer.ConnectBlock(dbTx, block, parent, view); err != nil {
return err
}
// Update the current index tip.
return dbPutIndexerTip(dbTx, idxKey, block.Sha(), uint32(block.Height()))
}
// CalculateAddedSubsidy calculates the amount of subsidy added by a block
// and its parent. The blocks passed to this function MUST be valid blocks
// that have already been confirmed to abide by the consensus rules of the
// network, or the function might panic.
func CalculateAddedSubsidy(block, parent *dcrutil.Block) int64 {
var subsidy int64
regularTxTreeValid := dcrutil.IsFlagSet16(block.MsgBlock().Header.VoteBits,
dcrutil.BlockValid)
if regularTxTreeValid {
subsidy += parent.MsgBlock().Transactions[0].TxIn[0].ValueIn
}
for _, stx := range block.MsgBlock().STransactions {
if isSSGen, _ := stake.IsSSGen(stx); isSSGen {
subsidy += stx.TxIn[0].ValueIn
}
}
return subsidy
}
// NewMerkleBlock returns a new *wire.MsgMerkleBlock and an array of the matched
// transaction hashes based on the passed block and filter.
func NewMerkleBlock(block *dcrutil.Block, filter *Filter) (*wire.MsgMerkleBlock, []*chainhash.Hash) {
numTx := uint32(len(block.Transactions()))
mBlock := merkleBlock{
numTx: numTx,
allHashes: make([]*chainhash.Hash, 0, numTx),
matchedBits: make([]byte, 0, numTx),
}
// Find and keep track of any transactions that match the filter.
var matchedHashes []*chainhash.Hash
for _, tx := range block.Transactions() {
if filter.MatchTxAndUpdate(tx) {
mBlock.matchedBits = append(mBlock.matchedBits, 0x01)
matchedHashes = append(matchedHashes, tx.Sha())
} else {
mBlock.matchedBits = append(mBlock.matchedBits, 0x00)
}
mBlock.allHashes = append(mBlock.allHashes, tx.Sha())
}
// Calculate the number of merkle branches (height) in the tree.
height := uint32(0)
for mBlock.calcTreeWidth(height) > 1 {
height++
}
// Build the depth-first partial merkle tree.
mBlock.traverseAndBuild(height, 0)
// Create and return the merkle block.
msgMerkleBlock := wire.MsgMerkleBlock{
Header: block.MsgBlock().Header,
Transactions: uint32(mBlock.numTx),
Hashes: make([]*chainhash.Hash, 0, len(mBlock.finalHashes)),
Flags: make([]byte, (len(mBlock.bits)+7)/8),
}
for _, sha := range mBlock.finalHashes {
msgMerkleBlock.AddTxHash(sha)
}
for i := uint32(0); i < uint32(len(mBlock.bits)); i++ {
msgMerkleBlock.Flags[i/8] |= mBlock.bits[i] << (i % 8)
}
return &msgMerkleBlock, matchedHashes
}
// connectTxTree lets you connect an arbitrary TxTree to a txStore to push it
// forward in history.
// TxTree true == TxTreeRegular
// TxTree false == TxTreeStake
func connectTxTree(txStore TxStore,
block *dcrutil.Block,
txTree bool) {
var transactions []*dcrutil.Tx
if txTree {
transactions = block.Transactions()
} else {
transactions = block.STransactions()
}
// Loop through all of the transactions in the block to see if any of
// them are ones we need to update and spend based on the results map.
for i, tx := range transactions {
// Update the transaction store with the transaction information
// if it's one of the requested transactions.
msgTx := tx.MsgTx()
if txD, exists := txStore[*tx.Sha()]; exists {
txD.Tx = tx
txD.BlockHeight = block.Height()
txD.BlockIndex = uint32(i)
txD.Spent = make([]bool, len(msgTx.TxOut))
txD.Err = nil
}
// Spend the origin transaction output.
for _, txIn := range msgTx.TxIn {
originHash := &txIn.PreviousOutPoint.Hash
originIndex := txIn.PreviousOutPoint.Index
if originTx, exists := txStore[*originHash]; exists {
if originTx.Spent == nil {
continue
}
if originIndex >= uint32(len(originTx.Spent)) {
continue
}
originTx.Spent[originIndex] = true
}
}
}
return
}
// dbRemoveTxIndexEntries uses an existing database transaction to remove the
// latest transaction entry for every transaction in the passed block.
func dbRemoveTxIndexEntries(dbTx database.Tx, block, parent *dcrutil.Block) error {
regularTxTreeValid := dcrutil.IsFlagSet16(block.MsgBlock().Header.VoteBits,
dcrutil.BlockValid)
if regularTxTreeValid {
for _, tx := range parent.Transactions() {
txSha := tx.Sha()
err := dbRemoveTxIndexEntry(dbTx, *txSha)
if err != nil {
return err
}
}
}
for _, tx := range block.STransactions() {
txSha := tx.Sha()
err := dbRemoveTxIndexEntry(dbTx, *txSha)
if err != nil {
return err
}
}
return nil
}
// InsertBlock inserts raw block and transaction data from a block into the
// database. The first block inserted into the database will be treated as the
// genesis block. Every subsequent block insert requires the referenced parent
// block to already exist. This is part of the database.Db interface
// implementation.
func (db *MemDb) InsertBlock(block *dcrutil.Block) (int64, error) {
db.Lock()
defer db.Unlock()
if db.closed {
return 0, ErrDbClosed
}
// Reject the insert if the previously reference block does not exist
// except in the case there are no blocks inserted yet where the first
// inserted block is assumed to be a genesis block.
msgBlock := block.MsgBlock()
if _, exists := db.blocksBySha[msgBlock.Header.PrevBlock]; !exists {
if len(db.blocks) > 0 {
return 0, database.ErrPrevShaMissing
}
}
var blockPrev *dcrutil.Block = nil
// Decred: WARNING. This function assumes that all block insertion calls have
// dcrutil.blocks passed to them with block.blockHeight set correctly. However,
// loading the genesis block in dcrd didn't do this (via block manager); pre-
// production it should be established that all calls to this function pass
// blocks with block.blockHeight set correctly.
if len(db.blocks) > 0 {
var errBlockPrev error
blockPrev, errBlockPrev = db.fetchBlockBySha(&msgBlock.Header.PrevBlock)
if errBlockPrev != nil {
blockSha := block.Sha()
log.Warnf("Failed to fetch parent block of block %v", blockSha)
return 0, errBlockPrev
}
}
// Build a map of in-flight transactions because some of the inputs in
// this block could be referencing other transactions earlier in this
// block which are not yet in the chain.
newHeight := int64(len(db.blocks))
txInFlight := map[chainhash.Hash]int{}
// Loop through all transactions and inputs to ensure there are no error
// conditions that would prevent them from be inserted into the db.
// Although these checks could could be done in the loop below, checking
// for error conditions up front means the code below doesn't have to
// deal with rollback on errors.
votebits := block.MsgBlock().Header.VoteBits
if dcrutil.IsFlagSet16(votebits, dcrutil.BlockValid) && blockPrev != nil {
transactions := blockPrev.Transactions()
for i, tx := range transactions {
txInFlight[*tx.Sha()] = i
}
for i, tx := range transactions {
for _, txIn := range tx.MsgTx().TxIn {
if isCoinbaseInput(txIn) {
continue
}
// It is acceptable for a transaction input to reference
// the output of another transaction in this block only
// if the referenced transaction comes before the
// current one in this block.
prevOut := &txIn.PreviousOutPoint
if inFlightIndex, ok := txInFlight[prevOut.Hash]; ok {
if i <= inFlightIndex {
log.Warnf("InsertBlock: requested hash "+
" of %s does not exist in-flight",
tx.Sha())
return 0, database.ErrTxShaMissing
}
} else {
originTxns, exists := db.txns[prevOut.Hash]
if !exists {
log.Warnf("InsertBlock: requested hash "+
"of %s by %s does not exist",
prevOut.Hash, tx.Sha())
return 0, database.ErrTxShaMissing
}
originTxD := originTxns[len(originTxns)-1]
if prevOut.Index > uint32(len(originTxD.spentBuf)) {
log.Warnf("InsertBlock: requested hash "+
"of %s with index %d does not "+
"exist", tx.Sha(), prevOut.Index)
return 0, database.ErrTxShaMissing
}
}
}
// Prevent duplicate transactions in the same block.
if inFlightIndex, exists := txInFlight[*tx.Sha()]; exists &&
inFlightIndex < i {
log.Warnf("Block contains duplicate transaction %s",
tx.Sha())
return 0, database.ErrDuplicateSha
}
// Prevent duplicate transactions unless the old one is fully
// spent.
if txns, exists := db.txns[*tx.Sha()]; exists {
txD := txns[len(txns)-1]
if !isFullySpent(txD) {
log.Warnf("Attempt to insert duplicate "+
"transaction %s", tx.Sha())
return 0, database.ErrDuplicateSha
}
}
}
}
db.blocks = append(db.blocks, msgBlock)
db.blocksBySha[msgBlock.Header.BlockSha()] = newHeight
if dcrutil.IsFlagSet16(votebits, dcrutil.BlockValid) && blockPrev != nil {
// Insert information about eacj transaction and spend all of the
// outputs referenced by the inputs to the transactions.
for i, tx := range blockPrev.Transactions() {
// Insert the transaction data.
txD := tTxInsertData{
tree: dcrutil.TxTreeRegular,
blockHeight: newHeight - 1,
offset: i,
spentBuf: make([]bool, len(tx.MsgTx().TxOut)),
}
db.txns[*tx.Sha()] = append(db.txns[*tx.Sha()], &txD)
// Spend all of the inputs.
for _, txIn := range tx.MsgTx().TxIn {
// Coinbase transaction has no inputs.
if isCoinbaseInput(txIn) {
continue
}
// Already checked for existing and valid ranges above.
prevOut := &txIn.PreviousOutPoint
originTxns := db.txns[prevOut.Hash]
originTxD := originTxns[len(originTxns)-1]
originTxD.spentBuf[prevOut.Index] = true
}
}
}
for i, tx := range block.STransactions() {
// Insert the transaction data.
txD := tTxInsertData{
tree: dcrutil.TxTreeStake,
blockHeight: newHeight,
offset: i,
spentBuf: make([]bool, len(tx.MsgTx().TxOut)),
}
db.txns[*tx.Sha()] = append(db.txns[*tx.Sha()], &txD)
// Spend all of the inputs.
for _, txIn := range tx.MsgTx().TxIn {
// Coinbase transaction has no inputs.
if isCoinbaseInput(txIn) {
continue
}
// Already checked for existing and valid ranges above.
prevOut := &txIn.PreviousOutPoint
originTxns := db.txns[prevOut.Hash]
originTxD := originTxns[len(originTxns)-1]
originTxD.spentBuf[prevOut.Index] = true
}
}
return newHeight, nil
}
// spendTickets transfers tickets from the ticketMap to the spentTicketMap. Useful
// when connecting blocks. Also pushes missed tickets to the missed ticket map.
// usedtickets is a map that contains all tickets that were actually used in SSGen
// votes; all other tickets are considered missed.
//
// This function MUST be called with the tmdb lock held (for writes).
func (tmdb *TicketDB) spendTickets(parentBlock *dcrutil.Block,
usedTickets map[chainhash.Hash]struct{},
spendingHashes map[chainhash.Hash]chainhash.Hash) (SStxMemMap, error) {
// If there is nothing being spent, break.
if len(spendingHashes) < 1 {
return nil, nil
}
// Make sure there's a bucket in the map for used tickets
height := parentBlock.Height() + 1
tmdb.maybeInsertBlock(height)
tempTickets := make(SStxMemMap)
// Sort the entire list of tickets lexicographically by sorting
// each bucket and then appending it to the list.
totalTickets := 0
var sortedSlice []*TicketData
for i := 0; i < BucketsSize; i++ {
mapLen := len(tmdb.maps.ticketMap[i])
totalTickets += mapLen
tempTdSlice := NewTicketDataSlice(mapLen)
itr := 0 // Iterator
for _, td := range tmdb.maps.ticketMap[i] {
tempTdSlice[itr] = td
itr++
}
sort.Sort(tempTdSlice)
sortedSlice = append(sortedSlice, tempTdSlice...)
}
// Use the parent block's header to seed a PRNG that picks the lottery winners.
ticketsPerBlock := int(tmdb.chainParams.TicketsPerBlock)
pbhB, err := parentBlock.MsgBlock().Header.Bytes()
if err != nil {
return nil, err
}
prng := NewHash256PRNG(pbhB)
ts, err := FindTicketIdxs(int64(totalTickets), ticketsPerBlock, prng)
if err != nil {
return nil, err
}
ticketsToSpendOrMiss := make([]*TicketData, ticketsPerBlock, ticketsPerBlock)
for i, idx := range ts {
ticketsToSpendOrMiss[i] = sortedSlice[idx]
}
// Spend or miss these tickets by checking for their existence in the
// passed usedtickets map.
tixSpent := 0
tixMissed := 0
for _, ticket := range ticketsToSpendOrMiss {
// Move the ticket from active tickets map into the used tickets map
// if the ticket was spent.
_, wasSpent := usedTickets[ticket.SStxHash]
if wasSpent {
ticket.Missed = false
ticket.SpendHash = spendingHashes[ticket.SStxHash]
err := tmdb.pushSpentTicket(height, ticket)
if err != nil {
return nil, err
}
err = tmdb.removeLiveTicket(ticket)
if err != nil {
return nil, err
}
tixSpent++
} else { // Ticket missed being spent and --> false or nil
ticket.Missed = true // TODO fix test failure @ L150 due to this
err := tmdb.pushSpentTicket(height, ticket)
if err != nil {
return nil, err
}
err = tmdb.pushMissedTicket(ticket)
if err != nil {
return nil, err
}
err = tmdb.removeLiveTicket(ticket)
if err != nil {
return nil, err
}
tixMissed++
}
// Report on the spent and missed tickets for the block in debug.
if ticket.Missed {
log.Debugf("Ticket %v has been missed and expired from "+
"the lottery pool as a missed ticket", ticket.SStxHash)
} else {
log.Debugf("Ticket %v was spent and removed from "+
"the lottery pool", ticket.SStxHash)
}
// Add the ticket to the temporary tickets buffer for later use in
// map restoration if needed.
tempTickets[ticket.SStxHash] = ticket
}
// Some sanity checks.
if tixSpent != len(usedTickets) {
errStr := fmt.Sprintf("spendTickets error, an invalid number %v "+
"tickets was spent, but %v many tickets should "+
"have been spent!", tixSpent, len(usedTickets))
return nil, errors.New(errStr)
}
if tixMissed != (ticketsPerBlock - len(usedTickets)) {
errStr := fmt.Sprintf("spendTickets error, an invalid number %v "+
"tickets was missed, but %v many tickets should "+
"have been missed!", tixMissed, ticketsPerBlock-len(usedTickets))
return nil, errors.New(errStr)
}
if (tixSpent + tixMissed) != ticketsPerBlock {
errStr := fmt.Sprintf("spendTickets error, an invalid number %v "+
"tickets was spent and missed, but TicketsPerBlock %v many "+
"tickets should have been spent!", tixSpent, ticketsPerBlock)
return nil, errors.New(errStr)
}
return tempTickets, nil
}
// insertBlock is the internal function which implements the public
// InsertBlock. See the comment for InsertBlock for more details.
//
// This function MUST be called with the tmdb lock held (for writes).
func (tmdb *TicketDB) insertBlock(block *dcrutil.Block) (SStxMemMap,
SStxMemMap, SStxMemMap, error) {
height := block.Height()
if height < tmdb.StakeEnabledHeight {
return nil, nil, nil, nil
}
// Sanity check: Does the number of tickets in ticketMap equal the number
// of tickets indicated in the header?
poolSizeBlock := int(block.MsgBlock().Header.PoolSize)
poolSize := 0
for i := 0; i < BucketsSize; i++ {
poolSize += len(tmdb.maps.ticketMap[i])
}
if poolSize != poolSizeBlock {
return nil, nil, nil, fmt.Errorf("ticketpoolsize in block %v not "+
"equal to the calculated ticketpoolsize, indicating database "+
"corruption (got %v, want %v)",
block.Sha(),
poolSizeBlock,
poolSize)
}
// Create the block in the spentTicketMap.
tmdb.maybeInsertBlock(block.Height())
// Iterate through all the SSGen (vote) tx in the block and add them to
// a map of tickets that were actually used. The rest of the tickets in
// the buckets were then considered missed --> missedTicketMap.
// Note that it doesn't really matter what value you set usedTickets to,
// it's just a map of tickets that were actually used in the block. It
// would probably be more efficient to use an array.
usedTickets := make(map[chainhash.Hash]struct{})
spendingHashes := make(map[chainhash.Hash]chainhash.Hash)
revocations := make(map[chainhash.Hash]struct{})
for _, staketx := range block.STransactions() {
if is, _ := IsSSGen(staketx); is {
msgTx := staketx.MsgTx()
sstxIn := msgTx.TxIn[1] // sstx input
sstxHash := sstxIn.PreviousOutPoint.Hash
usedTickets[sstxHash] = struct{}{}
spendingHashes[sstxHash] = *staketx.Sha()
}
if is, _ := IsSSRtx(staketx); is {
msgTx := staketx.MsgTx()
sstxIn := msgTx.TxIn[0] // sstx input
sstxHash := sstxIn.PreviousOutPoint.Hash
revocations[sstxHash] = struct{}{}
}
}
// Spend or miss all the necessary tickets and do some sanity checks.
parentBlock, err := tmdb.database.FetchBlockBySha(
&block.MsgBlock().Header.PrevBlock)
if err != nil {
return nil, nil, nil, err
}
spentAndMissedTickets, err := tmdb.spendTickets(parentBlock,
usedTickets,
spendingHashes)
if err != nil {
return nil, nil, nil, err
}
// Expire all old tickets, and stick them into the spent and missed ticket
// map too.
expiredTickets, err := tmdb.expireTickets(height)
if err != nil {
return nil, nil, nil, err
}
if len(expiredTickets) > 0 && len(spentAndMissedTickets) == 0 {
return nil, nil, nil, fmt.Errorf("tried to expire tickets before " +
"stake validation height! TicketExpiry may be too small")
}
if len(expiredTickets) > 0 {
for hash, ticket := range expiredTickets {
spentAndMissedTickets[hash] = ticket
}
}
revokedTickets, err := tmdb.revokeTickets(revocations)
if err != nil {
return nil, nil, nil, err
}
newTickets, err := tmdb.pushMatureTicketsAtHeight(block.Height())
if err != nil {
return nil, nil, nil, err
}
log.Debugf("Connected block %v (height %v) to the ticket database",
block.Sha(), block.Height())
return cloneSStxMemMap(spentAndMissedTickets), cloneSStxMemMap(newTickets),
cloneSStxMemMap(revokedTickets), nil
}
func testFetchTxByShaListCommon(tc *testContext, includeSpent bool) bool {
var blockPrev *dcrutil.Block = nil
if tc.block.Height() != 0 {
var errBlockPrev error
blockPrev, errBlockPrev = tc.db.FetchBlockBySha(&tc.block.MsgBlock().Header.PrevBlock)
if errBlockPrev != nil {
blockSha := tc.block.Sha()
tc.t.Errorf("Failed to fetch parent block of block %v", blockSha)
}
}
unspentFromTxTreeStake := unspendStakeTxTree(tc.block)
votebits := tc.block.MsgBlock().Header.VoteBits
if dcrutil.IsFlagSet16(votebits, dcrutil.BlockValid) && blockPrev != nil {
fetchFunc := tc.db.FetchUnSpentTxByShaList
funcName := "FetchUnSpentTxByShaList"
if includeSpent {
fetchFunc = tc.db.FetchTxByShaList
funcName = "FetchTxByShaList"
}
transactions := blockPrev.Transactions()
txHashes := make([]*chainhash.Hash, len(transactions))
for i, tx := range transactions {
txHashes[i] = tx.Sha()
}
txReplyList := fetchFunc(txHashes)
if len(txReplyList) != len(txHashes) {
tc.t.Errorf("%s (%s): block #%d (%s) tx reply list does not "+
" match expected length - got: %v, want: %v", funcName,
tc.dbType, tc.blockHeight, tc.blockHash,
len(txReplyList), len(txHashes))
return false
}
for i, tx := range transactions {
txHash := tx.Sha()
txD := txReplyList[i]
// The transaction hash in the reply must be the expected value.
if !txD.Sha.IsEqual(txHash) {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) "+
"hash does not match expected value - got %v",
funcName, tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, txD.Sha)
return false
}
// The reply must not indicate any errors.
if txD.Err != nil {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) "+
"returned unexpected error - got %v, want nil",
funcName, tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, txD.Err)
return false
}
// The transaction in the reply fetched from the database must
// be the same MsgTx that was stored.
if !reflect.DeepEqual(tx.MsgTx(), txD.Tx) {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) does "+
"not match stored tx\ngot: %v\nwant: %v",
funcName, tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, spew.Sdump(txD.Tx),
spew.Sdump(tx.MsgTx()))
return false
}
// The block hash in the reply from the database must be the
// expected value.
if txD.BlkSha == nil {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) "+
"returned nil block hash", funcName, tc.dbType,
tc.blockHeight, tc.blockHash, i, txHash)
return false
}
if !txD.BlkSha.IsEqual(&tc.block.MsgBlock().Header.PrevBlock) {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s)"+
"returned unexpected block hash - got %v",
funcName, tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, txD.BlkSha)
return false
}
// The block height in the reply from the database must be the
// expected value.
if txD.Height != tc.blockHeight-1 {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) "+
"returned unexpected block height - got %v",
funcName, tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, txD.Height)
return false
}
// The spend data in the reply from the database must not
// indicate any of the transactions that were just inserted are
// spent.
if txD.TxSpent == nil {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) "+
"returned nil spend data", funcName, tc.dbType,
tc.blockHeight, tc.blockHash, i, txHash)
return false
}
spentBuf := expectedSpentBuf(tc, i)
if !reflect.DeepEqual(txD.TxSpent, spentBuf) {
stakeInChecksDontPass := false
for txoIdx, _ := range spentBuf {
if txD.TxSpent[txoIdx] != spentBuf[txoIdx] {
op := wire.OutPoint{
*txHash,
uint32(txoIdx),
dcrutil.TxTreeRegular,
}
if _, unspent := unspentFromTxTreeStake[op]; !unspent {
stakeInChecksDontPass = true
}
}
}
if stakeInChecksDontPass {
tc.t.Errorf("%s (%s): block #%d (%s) tx #%d (%s) "+
"returned unexpected spend data - got %v, "+
"want %v", funcName, tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, txD.TxSpent, spentBuf)
return false
}
}
}
}
return true
}
// expectedSpentBuf returns the expected transaction spend information depending
// on the block height and and transaction number. NOTE: These figures are
// only valid for the specific set of test data provided at the time these tests
// were written. In particular, this means the first 256 blocks of the mainnet
// block chain.
//
// The first run through while the blocks are still being inserted, the tests
// are running against the latest block and therefore none of the outputs can
// be spent yet. However, on subsequent runs, all blocks have been inserted and
// therefore some of the transaction outputs are spent.
func expectedSpentBuf(tc *testContext, txNum int) []bool {
var blah = []bool{false}
var blockPrev *dcrutil.Block = nil
if tc.block.Height() != 0 {
var errBlockPrev error
blockPrev, errBlockPrev = tc.db.FetchBlockBySha(&tc.block.MsgBlock().Header.PrevBlock)
if errBlockPrev != nil {
blockSha := tc.block.Sha()
tc.t.Errorf("Failed to fetch parent block of block %v", blockSha)
return blah
}
}
transactions := blockPrev.Transactions()
numTxOut := len(transactions[txNum].MsgTx().TxOut)
spentBuf := make([]bool, numTxOut)
if tc.useSpends {
if tc.blockHeight >= 2 && tc.blockHeight <= 43 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 45 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 46 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 48 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 49 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 54 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 55 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 57 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 59 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 63 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 67 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 68 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 69 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 70 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 73 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 74 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 76 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 77 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight >= 105 && tc.blockHeight <= 120 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 122 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 125 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 127 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 131 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 132 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 134 && txNum == 0 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
}
if tc.blockHeight == 44 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 60 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = true
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 75 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 78 && txNum == 2 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 79 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = true
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 89 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 90 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 93 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 95 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 97 && txNum == 3 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = true
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 99 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = true
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 101 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 103 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 106 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = true
spentBuf[5] = false
}
if tc.blockHeight == 111 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 113 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = true
spentBuf[5] = false
}
if tc.blockHeight == 113 && txNum == 2 {
spentBuf[0] = true
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 117 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
spentBuf[3] = false
spentBuf[4] = false
spentBuf[5] = false
}
if tc.blockHeight == 122 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = true
spentBuf[3] = false
spentBuf[4] = true
spentBuf[5] = true
}
if tc.blockHeight == 131 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = false
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = true
spentBuf[5] = true
}
if tc.blockHeight == 135 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = true
spentBuf[5] = false
}
if tc.blockHeight == 141 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 142 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = false
spentBuf[3] = true
spentBuf[4] = true
spentBuf[5] = true
}
if tc.blockHeight == 145 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = false
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = true
spentBuf[5] = true
}
if tc.blockHeight == 146 && txNum == 1 {
spentBuf[0] = true
spentBuf[1] = false
spentBuf[2] = false
spentBuf[3] = true
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 146 && txNum == 2 {
spentBuf[0] = true
spentBuf[1] = true
spentBuf[2] = true
spentBuf[3] = true
spentBuf[4] = false
spentBuf[5] = true
}
if tc.blockHeight == 147 && txNum == 1 {
spentBuf[0] = false
spentBuf[1] = false
spentBuf[2] = true
spentBuf[3] = false
spentBuf[4] = true
spentBuf[5] = false
}
}
return spentBuf
}
// testFetchTxBySha ensures FetchTxBySha conforms to the interface contract.
func testFetchTxBySha(tc *testContext) bool {
var blockPrev *dcrutil.Block = nil
if tc.block.Height() != 0 {
var errBlockPrev error
blockPrev, errBlockPrev = tc.db.FetchBlockBySha(&tc.block.MsgBlock().Header.PrevBlock)
if errBlockPrev != nil {
blockSha := tc.block.Sha()
tc.t.Errorf("Failed to fetch parent block of block %v", blockSha)
}
}
votebits := tc.block.MsgBlock().Header.VoteBits
if dcrutil.IsFlagSet16(votebits, dcrutil.BlockValid) && blockPrev != nil {
for i, tx := range blockPrev.Transactions() {
txHash := tx.Sha()
txReplyList, err := tc.db.FetchTxBySha(txHash)
if err != nil {
tc.t.Errorf("FetchTxBySha (%s): block #%d (%s) "+
"tx #%d (%s) err: %v", tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, err)
return false
}
if len(txReplyList) == 0 {
tc.t.Errorf("FetchTxBySha (%s): block #%d (%s) "+
"tx #%d (%s) did not return reply data",
tc.dbType, tc.blockHeight, tc.blockHash, i,
txHash)
return false
}
txFromDb := txReplyList[len(txReplyList)-1].Tx
if !reflect.DeepEqual(tx.MsgTx(), txFromDb) {
tc.t.Errorf("FetchTxBySha (%s): block #%d (%s) "+
"tx #%d (%s, %s) does not match stored tx\n"+
"got: %v\nwant: %v", tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, txFromDb.TxSha(), spew.Sdump(txFromDb),
spew.Sdump(tx.MsgTx()))
return false
}
}
}
for i, tx := range tc.block.MsgBlock().STransactions {
txHash := tx.TxSha()
txReplyList, err := tc.db.FetchTxBySha(&txHash)
if err != nil {
tc.t.Errorf("FetchTxBySha (%s): block #%d (%s) "+
"sstx #%d (%s) err: %v", tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, err)
return false
}
if len(txReplyList) == 0 {
tc.t.Errorf("FetchTxBySha (%s): block #%d (%s) "+
"sstx #%d (%s) did not return reply data",
tc.dbType, tc.blockHeight, tc.blockHash, i,
txHash)
return false
}
txFromDb := txReplyList[len(txReplyList)-1].Tx
if !reflect.DeepEqual(tx, txFromDb) {
tc.t.Errorf("FetchTxBySha (%s): block #%d (%s) "+
"sstx #%d (%s) does not match stored sstx\n"+
"got: %v\nwant: %v", tc.dbType, tc.blockHeight,
tc.blockHash, i, txHash, spew.Sdump(txFromDb),
spew.Sdump(tx))
return false
}
}
return true
}
