Struct FileReader 

pub struct FileReader { /* private fields */ }

A streaming reader over a guest-file read response. A background task pumps chunks into a bounded channel (so a slow consumer applies backpressure rather than buffering the whole file); FileReader::next yields the next chunk, None at end of file.

Implementations

impl FileReader

pub async fn next(&self) -> Option<Result<Vec<u8>, SailError>>

Yield the next file chunk, or None at end of file. A stream error surfaces as Some(Err(..)).

pub fn close(&self)

Abort the background download, cancelling its gRPC stream even when a next() is stalled awaiting a chunk. Idempotent; a pending or subsequent next() then observes end of stream (None).