Struct bitcoin_db::DBWrapper

pub struct DBWrapper { /* private fields */ }

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Implementations

impl DBWrapper

pub fn read<K, V>(&self, key: &K, value: &mut V) -> bool

pub fn write<K, V>(&mut self, key: &K, value: &V, sync: Option<bool>) -> bool

pub fn exists<K>(&self, key: &K) -> bool

pub fn erase<K>(&mut self, key: &K, sync: Option<bool>) -> bool

pub fn new_iterator(&mut self) -> *mut DBIterator<'_>

pub fn estimate_size<K>(&self, key_begin: &K, key_end: &K) -> usize

pub fn compact_range<K>(&self, key_begin: &K, key_end: &K)

| Compact a certain range of keys in the | database. |

pub fn new( path: &Path, n_cache_size: usize, memory: Option<bool>, wipe: Option<bool>, obfuscate: Option<bool> ) -> Self

| @param[in] path | | Location in the filesystem where leveldb | data will be stored. | ––––– | @param[in] nCacheSize | | Configures various leveldb cache settings. | ––––– | @param[in] fMemory | | If true, use leveldb’s memory environment. | ––––– | @param[in] fWipe | | If true, remove all existing data. | ––––– | @param[in] obfuscate | | If true, store data obfuscated via simple | XOR. If false, XOR with a zero’d byte | array. |

pub fn write_batch(&mut self, batch: &mut DBBatch, sync: Option<bool>) -> bool

pub fn dynamic_memory_usage(&self) -> Option<usize>

| Get an estimate of LevelDB memory usage | (in bytes). |

pub fn create_obfuscate_key(&self) -> Vec<u8>

| Returns a string (consisting of 8 random | bytes) suitable for use as an obfuscating | XOR key. |

pub fn is_empty(&mut self) -> bool

| Return true if the database managed | by this class contains no entries. |

Trait Implementations

impl Drop for DBWrapper

fn drop(&mut self)

Executes the destructor for this type.