asyn-rs 0.6.1

Rust port of EPICS asyn - async device I/O framework
Documentation 
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use crate::error::AsynResult;
use crate::user::AsynUser;

/// Byte-stream I/O interface (asynOctet equivalent).
pub trait AsynOctet: Send + Sync {
    fn read_octet(&mut self, user: &AsynUser, buf: &mut [u8]) -> AsynResult<usize>;
    fn write_octet(&mut self, user: &mut AsynUser, data: &[u8]) -> AsynResult<()>;
    fn flush(&mut self, _user: &mut AsynUser) -> AsynResult<()> {
        Ok(())
    }
}