![]() |
Bitcoin ABC
0.23.1
P2P Digital Currency
|
TxIndex is used to look up transactions included in the blockchain by ID. More...
#include <txindex.h>
Classes | |
class | DB |
Access to the txindex database (indexes/txindex/) More... | |
Public Member Functions | |
TxIndex (size_t n_cache_size, bool f_memory=false, bool f_wipe=false) | |
Constructs the index, which becomes available to be queried. More... | |
virtual | ~TxIndex () override |
bool | FindTx (const TxId &txid, BlockHash &block_hash, CTransactionRef &tx) const |
Look up a transaction by identifier. More... | |
![]() | |
virtual | ~BaseIndex () |
Destructor interrupts sync thread if running and blocks until it exits. More... | |
bool | BlockUntilSyncedToCurrentChain () const |
Blocks the current thread until the index is caught up to the current state of the block chain. More... | |
void | Interrupt () |
void | Start () |
Start initializes the sync state and registers the instance as a ValidationInterface so that it stays in sync with blockchain updates. More... | |
void | Stop () |
Stops the instance from staying in sync with blockchain updates. More... | |
Protected Member Functions | |
bool | Init () override |
Override base class init to migrate from old database. More... | |
bool | WriteBlock (const CBlock &block, const CBlockIndex *pindex) override |
Write update index entries for a newly connected block. More... | |
BaseIndex::DB & | GetDB () const override |
const char * | GetName () const override |
Get the name of the index for display in logs. More... | |
![]() | |
void | BlockConnected (const std::shared_ptr< const CBlock > &block, const CBlockIndex *pindex) override |
Notifies listeners of a block being connected. More... | |
void | ChainStateFlushed (const CBlockLocator &locator) override |
Notifies listeners of the new active block chain on-disk. More... | |
virtual bool | CommitInternal (CDBBatch &batch) |
Virtual method called internally by Commit that can be overridden to atomically commit more index state. More... | |
virtual bool | Rewind (const CBlockIndex *current_tip, const CBlockIndex *new_tip) |
Rewind index to an earlier chain tip during a chain reorg. More... | |
![]() | |
~CValidationInterface ()=default | |
Protected destructor so that instances can only be deleted by derived classes. More... | |
virtual void | UpdatedBlockTip (const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) |
Notifies listeners when the block chain tip advances. More... | |
virtual void | TransactionAddedToMempool (const CTransactionRef &ptxn) |
Notifies listeners of a transaction having been added to mempool. More... | |
virtual void | TransactionRemovedFromMempool (const CTransactionRef &ptx) |
Notifies listeners of a transaction leaving mempool. More... | |
virtual void | BlockDisconnected (const std::shared_ptr< const CBlock > &block, const CBlockIndex *pindex) |
Notifies listeners of a block being disconnected. More... | |
virtual void | BlockChecked (const CBlock &, const BlockValidationState &) |
Notifies listeners of a block validation result. More... | |
virtual void | NewPoWValidBlock (const CBlockIndex *pindex, const std::shared_ptr< const CBlock > &block) |
Notifies listeners that a block which builds directly on our current tip has been received and connected to the headers tree, though not validated yet. More... | |
Private Attributes | |
const std::unique_ptr< DB > | m_db |
TxIndex is used to look up transactions included in the blockchain by ID.
The index is written to a LevelDB database and records the filesystem location of each transaction by transaction ID.
|
explicit |
Constructs the index, which becomes available to be queried.
Definition at line 230 of file txindex.cpp.
|
overridevirtual |
Definition at line 233 of file txindex.cpp.
bool TxIndex::FindTx | ( | const TxId & | txid, |
BlockHash & | block_hash, | ||
CTransactionRef & | tx | ||
) | const |
Look up a transaction by identifier.
[in] | txid | The ID of the transaction to be returned. |
[out] | block_hash | The hash of the block the transaction is found in. |
[out] | tx | The transaction itself. |
Definition at line 269 of file txindex.cpp.
|
overrideprotectedvirtual |
Implements BaseIndex.
Definition at line 265 of file txindex.cpp.
|
inlineoverrideprotectedvirtual |
|
overrideprotectedvirtual |
Override base class init to migrate from old database.
Reimplemented from BaseIndex.
Definition at line 235 of file txindex.cpp.
|
overrideprotectedvirtual |
Write update index entries for a newly connected block.
Reimplemented from BaseIndex.
Definition at line 248 of file txindex.cpp.