Module subscriber

Collects and records trace data.

Structs

DefaultGuard

A guard that resets the current default dispatcher to the prior default dispatcher when dropped.

Interest

Indicates a Subscriber’s interest in a particular callsite.

NoSubscriber

A no-op Subscriber.

SetGlobalDefaultError

Returned if setting the global dispatcher fails.

Traits

Subscriber

Trait representing the functions required to collect trace data.

Functions

set_default

Sets the Subscriber as the default for the current thread for the duration of the lifetime of the returned DefaultGuard.

set_global_default

Sets this subscriber as the global default for the duration of the entire program. Will be used as a fallback if no thread-local subscriber has been set in a thread (using with_default.)

with_default

Sets this Subscriber as the default for the current thread for the duration of a closure.