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This commit is contained in:
arkpar 2016-02-21 16:58:56 +01:00
parent bcc4ca48ab
commit 67cd29f4e1
1 changed files with 12 additions and 12 deletions
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24
util/src/kvdb.rs
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@ -31,12 +31,12 @@ impl DBTransaction {
} }
/// Insert a key-value pair in the transaction. Any existing value value will be overwritten upon write. /// Insert a key-value pair in the transaction. Any existing value value will be overwritten upon write.
pub fn put(&self, key: &[u8], value: &[u8]) -> Result<(), String> { pub fn put(&self, key: &[u8], value: &[u8]) -> Result<(), String> {
self.batch.put(key, value) self.batch.put(key, value)
} }
/// Delete value by key. /// Delete value by key.
pub fn delete(&self, key: &[u8]) -> Result<(), String> { pub fn delete(&self, key: &[u8]) -> Result<(), String> {
self.batch.delete(key) self.batch.delete(key)
} }
} }
@ -49,14 +49,14 @@ pub struct DatabaseConfig {
/// Database iterator /// Database iterator
pub struct DatabaseIterator<'a> { pub struct DatabaseIterator<'a> {
iter: DBIterator<'a>, iter: DBIterator<'a>,
} }
impl<'a> Iterator for DatabaseIterator<'a> { impl<'a> Iterator for DatabaseIterator<'a> {
type Item = (Box<[u8]>, Box<[u8]>); type Item = (Box<[u8]>, Box<[u8]>);
#[allow(type_complexity)] #[allow(type_complexity)]
fn next(&mut self) -> Option<(Box<[u8]>, Box<[u8]>)> { fn next(&mut self) -> Option<(Box<[u8]>, Box<[u8]>)> {
self.iter.next() self.iter.next()
} }
} }
@ -94,7 +94,8 @@ impl Database {
opts.set_max_background_compactions(4); opts.set_max_background_compactions(4);
opts.set_max_background_flushes(4); opts.set_max_background_flushes(4);
opts.set_filter_deletes(false); opts.set_filter_deletes(false);
opts.set_disable_auto_compactions(false);*/ opts.set_disable_auto_compactions(false);
*/
if let Some(size) = config.prefix_size { if let Some(size) = config.prefix_size {
let mut block_opts = BlockBasedOptions::new(); let mut block_opts = BlockBasedOptions::new();
@ -107,27 +108,27 @@ impl Database {
} }
/// Insert a key-value pair in the transaction. Any existing value value will be overwritten. /// Insert a key-value pair in the transaction. Any existing value value will be overwritten.
pub fn put(&self, key: &[u8], value: &[u8]) -> Result<(), String> { pub fn put(&self, key: &[u8], value: &[u8]) -> Result<(), String> {
self.db.put(key, value) self.db.put(key, value)
} }
/// Delete value by key. /// Delete value by key.
pub fn delete(&self, key: &[u8]) -> Result<(), String> { pub fn delete(&self, key: &[u8]) -> Result<(), String> {
self.db.delete(key) self.db.delete(key)
} }
/// Commit transaction to database. /// Commit transaction to database.
pub fn write(&self, tr: DBTransaction) -> Result<(), String> { pub fn write(&self, tr: DBTransaction) -> Result<(), String> {
self.db.write(tr.batch) self.db.write(tr.batch)
} }
/// Get value by key. /// Get value by key.
pub fn get(&self, key: &[u8]) -> Result<Option<DBVector>, String> { pub fn get(&self, key: &[u8]) -> Result<Option<DBVector>, String> {
self.db.get(key) self.db.get(key)
} }
/// Get value by partial key. Prefix size should match configured prefix size. /// Get value by partial key. Prefix size should match configured prefix size.
pub fn get_by_prefix(&self, prefix: &[u8]) -> Option<Box<[u8]>> { pub fn get_by_prefix(&self, prefix: &[u8]) -> Option<Box<[u8]>> {
let mut iter = self.db.iterator(IteratorMode::From(prefix, Direction::forward)); let mut iter = self.db.iterator(IteratorMode::From(prefix, Direction::forward));
match iter.next() { match iter.next() {
// TODO: use prefix_same_as_start read option (not availabele in C API currently) // TODO: use prefix_same_as_start read option (not availabele in C API currently)
@ -147,7 +148,6 @@ impl Database {
} }
} }
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use hash::*; use hash::*;