Enum CrossThreadUpdateKind 

pub enum CrossThreadUpdateKind {
    Value(Box<dyn Any + Send>),
    Updater(Arc<Mutex<Option<StateUpdaterFn>>>),
    ValueIfChanged {
        value: Box<dyn Any + Send>,
        type_id: TypeId,
    },
    UpdaterIfChanged {
        updater: Arc<Mutex<Option<StateUpdaterFn>>>,
    },
}

Thread-safe update kinds for cross-thread state updates. Uses Arc for functional updaters to allow sharing across threads.

Variants

Value(Box<dyn Any + Send>)

Direct value replacement (thread-safe via Box<dyn Any + Send>)

Updater(Arc<Mutex<Option<StateUpdaterFn>>>)

Functional update (thread-safe via Arc wrapper around Mutex<Option>) The Mutex<Option<>> pattern allows FnOnce to be called from an Fn context

ValueIfChanged

Value replacement with equality check - skips update if values are equal Includes TypeId for runtime type checking when reconstructing equality check

Fields

value: Box<dyn Any + Send>

The new value to set

type_id: TypeId

TypeId of the value for runtime type checking

UpdaterIfChanged

Functional update with equality check - skips marking dirty if result equals current The TypeId is extracted from the updater’s result when it’s first called

Fields

updater: Arc<Mutex<Option<StateUpdaterFn>>>

The updater function wrapped in Arc<Mutex<Option<>>> for thread-safety