pub trait ReadReady: ErrorType {
// Required method
fn read_ready(&mut self) -> Result<bool, Self::Error>;
}Get whether a reader is ready.
This allows using a Read or BufRead in a nonblocking fashion, i.e. trying to read only when it is ready.
Get whether the reader is ready for immediately reading.
This usually means that there is either some bytes have been received and are buffered and ready to be read, or that the reader is at EOF.
If this returns true, it’s guaranteed that the next call to Read::read or BufRead::fill_buf will not block.
Available on crate features std or alloc only.
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