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https://github.com/kaspanet/kaspad.git
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c13a4d90ed
* Added model and stubs for all main methods * Add constructors to all main objects * Implement BlockCandidateTransactions * implement expireOldTransactions and expireOrphanTransactions * Rename isHighPriority to neverExpires * Add stub for checkDoubleSpends * Revert "Rename isHighPriority to neverExpires" This reverts commit b2da9a4a00c02fb380d2518cf54fa16257bd8423. * Imeplement transactionsOrderedByFeeRate * Orphan maps should be idToOrphan * Add error.go to mempool * Invert the condition for banning when mempool rejects a transaction * Move all model objects to model package * Implement getParentsInPool * Implemented mempoolUTXOSet.addTransaction * Implement removeTransaction, remove sanity checks * Implemented mempoolUTXOSet.checkDoubleSpends * Implemented removeOrphan * Implement removeOrphan * Implement maybeAddOrphan and AddOrphan * Implemented processOrphansAfterAcceptedTransaction * Implement transactionsPool.addTransaction * Implement RemoveTransaction * If a transaction was removed from the mempool - update it's redeemers in orphan pool as well * Use maximumOrphanTransactionCount * Add allowOrphans to ValidateAndInsertTransaction stub * Implement validateTransaction functions * Implement fillInputs * Implement ValidateAndInsertTransaction * Implement HandleNewBlockTransactions * Implement missing mempool interface methods * Add comments to exported functions * Call ValidateTransactionInIsolation where needed * Implement RevalidateHighPriorityTransactions * Rewire kaspad to use new mempool, and fix compilation errors * Update rebroadcast logic to use new structure * Handle non-standard transaction errors properly * Add mutex to mempool * bugfix: GetTransaction panics when ok is false * properly calculate targetBlocksPerSecond in config.go * Fix various lint errors and tests * Fix expected text in test for duplicate transactions * Skip the coinbase transaction in HandleNewBlockTransactions * Unorphan the correct transactions * Call ValidateTransactionAndPopulateWithConsensusData on unorphanTransaction * Re-apply policy_test as check_transactions_standard_test * removeTransaction: Remove redeemers in orphan pool as well * Remove redundant check for uint64 < 0 * Export and rename isDust -> IsTransactionOutputDust to allow usage by rothschild * Add allowOrphan to SubmitTransaction RPC request * Remove all implementation from mempool.go * tidy go mod * Don't pass acceptedOrphans to handleNewBlockTransactions * Use t.Errorf in stead of t.Fatalf * Remove minimum relay fee from TestDust, as it's no longer configurable * Add separate VirtualDAASCore method for faster retrieval where it's repeated multiple times * Broadcast all transactions that were accepted * Don't re-use GetVirtualDAAScore in GetVirtualInfo - this causes a deadlock * Use real transaction count, and not Orphan * Get mempool config from outside, incorporating values received from cli * Use MinRelayFee and MaxOrphanTxs from global kaspad config * Add explanation for the seemingly redundant check for transaction version in checkTransactionStandard * Update some comment * Convert creation of acceptedTransactions to a single line * Move mempoolUTXOSet out of checkDoubleSpends * Add test for attempt to insert double spend into mempool * fillInputs: Skip check for coinbase - it's always false in mempool * Clarify comment about removeRedeemers when removing random orphan * Don't remove high-priority transactions in limitTransactionCount * Use mempool.removeTransaction in limitTransactionCount * Add mutex comment to handleNewBlockTransactions * Return error from limitTransactionCount * Pluralize the map types * mempoolUTXOSet.removeTransaction: Don't restore utxo if it was not created in mempool * Don't evacuate from orphanPool high-priority transactions * Disallow double-spends in orphan pool * Don't use exported (and locking) methods from inside mempool * Check for double spends in mempool during revalidateTransaction * Add checkOrphanDuplicate * Add orphan to acceptedOrphans, not current * Add TestHighPriorityTransactions * Fix off-by-one error in limitTransactionCount * Add TestRevalidateHighPriorityTransactions * Remove checkDoubleSpends from revalidateTransaction * Fix TestRevalidateHighPriorityTransactions * Move check for MaximumOrphanCount to beggining of maybeAddOrphan * Rename all map type to singulateToSingularMap * limitOrphanPool only after the orphan was added * TestDoubleSpendInMempool: use createChildTxWhenParentTxWasAddedByConsensus instead of createTransactionWithUTXOEntry * Fix some comments * Have separate min/max transaction versions for mempool * Add comment on defaultMaximumOrphanTransactionCount to keep it small as long as we have recursion * Fix comment * Rename: createChildTxWhenParentTxWasAddedByConsensus -> createChildTxWhereParentTxWasAddedByConsensus * Handle error from createChildTxWhereParentTxWasAddedByConsensus * Rename createChildTxWhereParentTxWasAddedByConsensus -> createChildAndParentTxsAndAddParentToConsensus * Convert all MaximumXXX constants to uint64 * Add comment * remove mutex comments
81 lines
2.9 KiB
Go
81 lines
2.9 KiB
Go
package mempool
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import (
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"fmt"
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"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
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"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
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"github.com/kaspanet/kaspad/domain/consensus/utils/utxo"
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"github.com/kaspanet/kaspad/domain/miningmanager/mempool/model"
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)
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type mempoolUTXOSet struct {
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mempool *mempool
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poolUnspentOutputs model.OutpointToUTXOEntryMap
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transactionByPreviousOutpoint model.OutpointToTransactionMap
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}
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func newMempoolUTXOSet(mp *mempool) *mempoolUTXOSet {
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return &mempoolUTXOSet{
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mempool: mp,
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poolUnspentOutputs: model.OutpointToUTXOEntryMap{},
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transactionByPreviousOutpoint: model.OutpointToTransactionMap{},
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}
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}
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func (mpus *mempoolUTXOSet) addTransaction(transaction *model.MempoolTransaction) {
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outpoint := &externalapi.DomainOutpoint{TransactionID: *transaction.TransactionID()}
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for i, input := range transaction.Transaction().Inputs {
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outpoint.Index = uint32(i)
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// Delete the output this input spends, in case it was created by mempool.
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// If the outpoint doesn't exist in mpus.poolUnspentOutputs - this means
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// it was created in the DAG (a.k.a. in consensus).
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delete(mpus.poolUnspentOutputs, *outpoint)
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mpus.transactionByPreviousOutpoint[input.PreviousOutpoint] = transaction
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}
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for i, output := range transaction.Transaction().Outputs {
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outpoint := externalapi.DomainOutpoint{TransactionID: *transaction.TransactionID(), Index: uint32(i)}
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mpus.poolUnspentOutputs[outpoint] =
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utxo.NewUTXOEntry(output.Value, output.ScriptPublicKey, false, model.UnacceptedDAAScore)
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}
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}
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func (mpus *mempoolUTXOSet) removeTransaction(transaction *model.MempoolTransaction) {
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for _, input := range transaction.Transaction().Inputs {
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// If the transaction creating the output spent by this input is in the mempool - restore it's UTXO
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if _, ok := mpus.mempool.transactionsPool.getTransaction(&input.PreviousOutpoint.TransactionID); ok {
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mpus.poolUnspentOutputs[input.PreviousOutpoint] = input.UTXOEntry
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}
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delete(mpus.transactionByPreviousOutpoint, input.PreviousOutpoint)
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}
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outpoint := externalapi.DomainOutpoint{TransactionID: *transaction.TransactionID()}
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for i := range transaction.Transaction().Outputs {
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outpoint.Index = uint32(i)
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delete(mpus.poolUnspentOutputs, outpoint)
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}
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}
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func (mpus *mempoolUTXOSet) checkDoubleSpends(transaction *externalapi.DomainTransaction) error {
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outpoint := externalapi.DomainOutpoint{TransactionID: *consensushashing.TransactionID(transaction)}
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for i, input := range transaction.Inputs {
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outpoint.Index = uint32(i)
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if existingTransaction, exists := mpus.transactionByPreviousOutpoint[input.PreviousOutpoint]; exists {
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str := fmt.Sprintf("output %s already spent by transaction %s in the memory pool",
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input.PreviousOutpoint, existingTransaction.TransactionID())
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return transactionRuleError(RejectDuplicate, str)
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}
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}
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return nil
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}
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