Struct tracing_glog::Glog

pub struct Glog<T = UtcTime> { /* private fields */ }

A glog-inspired span and event formatter.

Implementations

impl<T> Glog<T>

pub fn with_timer<T2>(self, timer: T2) -> Glog<T2>where
    T2: FormatTime,

Use the given timer for span and event time stamps.

tracing-glog provides two timers: LocalTime and UtcTime. UtcTime is the default timer.

pub fn with_thread_names(self, with_thread_names: bool) -> Glog<T>

pub fn with_target(self, with_target: bool) -> Glog<T>

pub fn with_span_context(self, with_span_context: bool) -> Glog<T>

Sets whether or not the span context is included. Defaults to true.

By default, formatters building atop of tracing_subscriber::fmt will include the span context as fmt::Layer and fmt::Subscriber assume that span context is is valuable and the raison d’être for using tracing and, as such, do not provide a toggle. However, users migrating from logging systems such as glog or folly’s xlog might find the span context to be overwhelming. Therefore, this formatter-level toggle is availible in order to provide a smoother onboarding experience to tracing.

Notice: This is a relatively coarse toggle. In most circumstances, usage of tracing-subscriber’s filter_fn is preferred to disable spans on a more fine-grained basis.

Trait Implementations

impl Default for Glog<UtcTime>

fn default() -> Self

Returns the “default value” for a type.

impl<S, N, T> FormatEvent<S, N> for Glog<T>where
    S: Subscriber + for<'a> LookupSpan<'a>,
    N: for<'a> FormatFields<'a> + 'static,
    T: FormatTime,

fn format_event(
    &self,
    ctx: &FmtContext<'_, S, N>,
    writer: Writer<'_>,
    event: &Event<'_>
) -> Result

Write a log message for Event in Context to the given Writer.