Struct slog_async::AsyncGuard[−][src]

pub struct AsyncGuard { /* fields omitted */ }
[−]

Async guard

All Drains are reference-counted by every Logger that uses them. Async drain runs a worker thread and sends a termination (and flushing) message only when being droped. Because of that it’s actually quite easy to have a left-over reference to a Async drain, when terminating: especially on panics or similar unwinding event. Typically it’s caused be a leftover reference like Logger in thread-local variable, global variable, or a thread that is not being joined on. It might be a program bug, but logging should work reliably especially in case of bugs.

AsyncGuard is a remedy: it will send a flush and termination message to a Async worker thread, and wait for it to finish on it’s own drop. Using it is a simplest way to guarantee log flushing when using slog_async.

Trait Implementations

impl Drop for AsyncGuard[src][+]

Auto Trait Implementations

impl !RefUnwindSafe for AsyncGuard

impl Send for AsyncGuard

impl Sync for AsyncGuard

impl Unpin for AsyncGuard

impl !UnwindSafe for AsyncGuard

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src][+]

impl<T> Borrow<T> for T where
    T: ?Sized, [src][+]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src][+]

impl<T> From<T> for T[src][+]

impl<T, U> Into<U> for T where
    U: From<T>, [src][+]

impl<T> SendSyncUnwindSafe for T where
    T: Send + Sync + UnwindSafe + ?Sized, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src][+]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.