Struct M2dirFlagAdd 

pub struct M2dirFlagAdd { /* private fields */ }

I/O-free m2dir flag ADD coroutine.

Implementations

impl M2dirFlagAdd

pub fn new( m2dir: &M2dir, id: impl AsRef<str>, flags: M2dirFlags, opts: M2dirFlagAddOptions, ) -> Self

Creates a new coroutine that will add flags to the flags metadata file for entry id inside m2dir.

Trait Implementations

impl M2dirCoroutine for M2dirFlagAdd

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<(), M2dirFlagAddError>

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.