Bitcoin ABC 0.30.3
P2P Digital Currency
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The database stores a block locator of the chain the database is synced to so that the TxIndex can efficiently determine the point it last stopped at. More...
#include <base.h>
Public Member Functions | |
DB (const fs::path &path, size_t n_cache_size, bool f_memory=false, bool f_wipe=false, bool f_obfuscate=false) | |
bool | ReadBestBlock (CBlockLocator &locator) const |
Read block locator of the chain that the index is in sync with. More... | |
void | WriteBestBlock (CDBBatch &batch, const CBlockLocator &locator) |
Write block locator of the chain that the index is in sync with. More... | |
Public Member Functions inherited from CDBWrapper | |
CDBWrapper (const DBParams ¶ms) | |
~CDBWrapper () | |
CDBWrapper (const CDBWrapper &)=delete | |
CDBWrapper & | operator= (const CDBWrapper &)=delete |
template<typename K , typename V > | |
bool | Read (const K &key, V &value) const |
template<typename K , typename V > | |
bool | Write (const K &key, const V &value, bool fSync=false) |
std::optional< fs::path > | StoragePath () |
template<typename K > | |
bool | Exists (const K &key) const |
template<typename K > | |
bool | Erase (const K &key, bool fSync=false) |
bool | WriteBatch (CDBBatch &batch, bool fSync=false) |
size_t | DynamicMemoryUsage () const |
CDBIterator * | NewIterator () |
bool | IsEmpty () |
Return true if the database managed by this class contains no entries. More... | |
template<typename K > | |
size_t | EstimateSize (const K &key_begin, const K &key_end) const |
template<typename K > | |
void | CompactRange (const K &key_begin, const K &key_end) const |
Compact a certain range of keys in the database. More... | |
The database stores a block locator of the chain the database is synced to so that the TxIndex can efficiently determine the point it last stopped at.
A locator is used instead of a simple hash of the chain tip because blocks and block index entries may not be flushed to disk until after this database is updated.
BaseIndex::DB::DB | ( | const fs::path & | path, |
size_t | n_cache_size, | ||
bool | f_memory = false , |
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bool | f_wipe = false , |
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bool | f_obfuscate = false |
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) |
bool BaseIndex::DB::ReadBestBlock | ( | CBlockLocator & | locator | ) | const |
void BaseIndex::DB::WriteBestBlock | ( | CDBBatch & | batch, |
const CBlockLocator & | locator | ||
) |