Struct M2dirMessageGet 

pub struct M2dirMessageGet { /* private fields */ }

Available on crate feature m2dir only.

I/O-free coroutine reading a single m2dir message as raw bytes.

Implementations

impl M2dirMessageGet

pub fn new( root: impl Into<PathBuf>, mailbox: &str, id: &str, ) -> Result<Self, M2dirMessageGetError>

Trait Implementations

impl M2dirCoroutine for M2dirMessageGet

type Yield = M2dirYield

Intermediate value handed back on every step. Per-coroutine: each implementor picks exactly the variants it needs. In io-m2dir every coroutine picks M2dirYield.

type Return = Result<Vec<u8>, M2dirMessageGetError>

Terminal value. By convention Result<Output, Error>; the “ok” arm carries the operation’s final output, the “error” arm carries the cause.

fn resume( &mut self, arg: Option<M2dirArg>, ) -> M2dirCoroutineState<Self::Yield, Self::Return>

Advances the coroutine one step.