Struct DefaultCallsite

pub struct DefaultCallsite { /* private fields */ }

A default Callsite implementation.

Implementations

impl DefaultCallsite

pub const fn new(meta: &'static Metadata<'static>) -> DefaultCallsite

Available on crate feature cpu_os_threads only.

Returns a new DefaultCallsite with the specified Metadata.

pub fn register(&'static self) -> Interest

Available on crate feature cpu_os_threads only.

Registers this callsite with the global callsite registry.

If the callsite is already registered, this does nothing. When using DefaultCallsite, this method should be preferred over tracing_core::callsite::register, as it ensures that the callsite is only registered a single time.

Other callsite implementations will generally ensure that callsites are not re-registered through another mechanism.

See the documentation on callsite registration for details on the global callsite registry.

pub fn interest(&'static self) -> Interest

Available on crate feature cpu_os_threads only.

Returns the callsite’s cached Interest, or registers it for the first time if it has not yet been registered.

Trait Implementations

impl Callsite for DefaultCallsite

fn set_interest(&self, interest: Interest)

Sets the Interest for this callsite.

fn metadata(&self) -> &Metadata<'static>

Returns the metadata associated with the callsite.

impl Debug for DefaultCallsite

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.