Trait FileWriter 

pub trait FileWriter:
    Send
    + Sync
    + FileRw {
    // Required methods
    fn write_block(&mut self, data: FBuf) -> Result<Arc<FBuf>, StorageError>;
    fn complete(self: Box<Self>) -> Result<Arc<dyn FileReader>, StorageError>;
}

A file being written.

The file can’t be read until it is completed with FileWriter::complete. Until then, the file is temporary and will be deleted if it is dropped.

Required Methods

fn write_block(&mut self, data: FBuf) -> Result<Arc<FBuf>, StorageError>

Writes data at the end of the file. len()must be a multiple of 512. Returns the data that was written encapsulated in anArc`.

fn complete(self: Box<Self>) -> Result<Arc<dyn FileReader>, StorageError>

Completes writing of a file and returns a reader for the file.

The file will be deleted if the reader is dropped without calling FileReader::mark_for_checkpoint.

The file is not necessarily committed to stable storage before calling commit on the returned file.

Implementors