Struct FileIO 

pub struct FileIO;

Synchronous, low-overhead file source and sink, backed by StreamConverters over std::fs::File. Mirrors Akka’s FileIO; see super::TokioFileIO for the async variant.

Implementations

impl FileIO

pub fn from_path(path: impl Into<PathBuf>, chunk_size: usize) -> Source<Vec<u8>>

Reads path into Vec<u8> chunks of at most chunk_size bytes. The file is opened at materialization; an open failure fails the stream.

pub fn from_path_default(path: impl Into<PathBuf>) -> Source<Vec<u8>>

FileIO::from_path with the default 8 KiB chunk size.

pub fn to_path( path: impl Into<PathBuf>, ) -> Sink<Vec<u8>, StreamCompletion<NotUsed>>

Writes the byte stream to path, creating the file if absent and truncating it otherwise. The materialized StreamCompletion resolves once the file is flushed and closed.