Trait ThreadSafeHeaderFn

pub trait ThreadSafeHeaderFn:
    Fn(&dyn ThreadSafeTimestampFn<Output = Result<()>>, &mut dyn RecordDecorator, &Record<'_>, bool) -> Result<bool>
    + Send
    + Sync
    + UnwindSafe
    + RefUnwindSafe
    + 'static { }

Threadsafe header formatting function type

To satify slog-rs thread and unwind safety requirements, the bounds expressed by this trait need to satisfied for a function to be used in timestamp formatting.

Implementors

impl<F> ThreadSafeHeaderFn for F

where F: Fn(&dyn ThreadSafeTimestampFn<Output = Result<()>>, &mut dyn RecordDecorator, &Record<'_>, bool) -> Result<bool> + Send + Sync + UnwindSafe + RefUnwindSafe + 'static + ?Sized,