diff options
Diffstat (limited to 'src/dbwrapper.h')
| -rw-r--r-- | src/dbwrapper.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/dbwrapper.h b/src/dbwrapper.h index 24ef71bfbf..7575d207ae 100644 --- a/src/dbwrapper.h +++ b/src/dbwrapper.h @@ -177,7 +177,7 @@ class CDBWrapper { friend const std::vector<unsigned char>& dbwrapper_private::GetObfuscateKey(const CDBWrapper &w); private: - //! custom environment this database is using (may be NULL in case of default environment) + //! custom environment this database is using (may be nullptr in case of default environment) leveldb::Env* penv; //! database options used @@ -321,6 +321,23 @@ public: pdb->GetApproximateSizes(&range, 1, &size); return size; } + + /** + * Compact a certain range of keys in the database. + */ + template<typename K> + void CompactRange(const K& key_begin, const K& key_end) const + { + CDataStream ssKey1(SER_DISK, CLIENT_VERSION), ssKey2(SER_DISK, CLIENT_VERSION); + ssKey1.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); + ssKey2.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); + ssKey1 << key_begin; + ssKey2 << key_end; + leveldb::Slice slKey1(ssKey1.data(), ssKey1.size()); + leveldb::Slice slKey2(ssKey2.data(), ssKey2.size()); + pdb->CompactRange(&slKey1, &slKey2); + } + }; #endif // BITCOIN_DBWRAPPER_H |