Struct SstFileWriter

pub struct SstFileWriter<'a> { /* private fields */ }

SstFileWriter is used to create sst files that can be added to database later All keys in files generated by SstFileWriter will have sequence number = 0.

Implementations

impl<'a> SstFileWriter<'a>

pub fn create(opts: &'a Options) -> Self

Initializes SstFileWriter with given DB options.

pub fn open<P: AsRef<Path>>(&'a self, path: P) -> Result<(), Error>

Prepare SstFileWriter to write into file located at “file_path”.

pub fn finish(&mut self) -> Result<(), Error>

Finalize writing to sst file and close file.

pub fn file_size(&self) -> u64

returns the current file size

pub fn put<K, V>(&mut self, key: K, value: V) -> Result<(), Error>

where K: AsRef<[u8]>, V: AsRef<[u8]>,

Adds a Put key with value to currently opened file REQUIRES: key is after any previously added key according to comparator.

pub fn put_with_ts<K, V, S>( &mut self, key: K, ts: S, value: V, ) -> Result<(), Error>

where K: AsRef<[u8]>, V: AsRef<[u8]>, S: AsRef<[u8]>,

Adds a Put key with value to currently opened file REQUIRES: key is after any previously added key according to comparator.

pub fn merge<K, V>(&mut self, key: K, value: V) -> Result<(), Error>

where K: AsRef<[u8]>, V: AsRef<[u8]>,

Adds a Merge key with value to currently opened file REQUIRES: key is after any previously added key according to comparator.

pub fn delete<K: AsRef<[u8]>>(&mut self, key: K) -> Result<(), Error>

Adds a deletion key to currently opened file REQUIRES: key is after any previously added key according to comparator.

pub fn delete_with_ts<K: AsRef<[u8]>, S: AsRef<[u8]>>( &mut self, key: K, ts: S, ) -> Result<(), Error>

Adds a deletion key to currently opened file REQUIRES: key is after any previously added key according to comparator.

Trait Implementations

impl Drop for SstFileWriter<'_>

fn drop(&mut self)

Executes the destructor for this type.

impl Send for SstFileWriter<'_>

impl Sync for SstFileWriter<'_>