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Add tracing layer list and refactor logging implementation
Signed-off-by: trivernis <trivernis@protonmail.com>
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118 changes: 118 additions & 0 deletions
118
mediarepo-daemon/mediarepo-core/src/tracing_layer_list.rs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| use std::slice::{Iter, IterMut}; | ||
| use tracing::level_filters::LevelFilter; | ||
| use tracing::span::{Attributes, Record}; | ||
| use tracing::subscriber::Interest; | ||
| use tracing::{Event, Id, Metadata, Subscriber}; | ||
| use tracing_subscriber::Layer; | ||
|
|
||
| pub struct DynLayerList<S>(Vec<Box<dyn Layer<S> + Send + Sync + 'static>>); | ||
|
|
||
| impl<S> DynLayerList<S> { | ||
| pub fn new() -> Self { | ||
| Self(Vec::new()) | ||
| } | ||
|
|
||
| pub fn iter(&self) -> Iter<'_, Box<dyn Layer<S> + Send + Sync>> { | ||
| self.0.iter() | ||
| } | ||
|
|
||
| pub fn iter_mut(&mut self) -> IterMut<'_, Box<dyn Layer<S> + Send + Sync>> { | ||
| self.0.iter_mut() | ||
| } | ||
| } | ||
|
|
||
| impl<S> DynLayerList<S> | ||
| where | ||
| S: Subscriber, | ||
| { | ||
| pub fn add<L: Layer<S> + Send + Sync>(&mut self, layer: L) { | ||
| self.0.push(Box::new(layer)); | ||
| } | ||
| } | ||
|
|
||
| impl<S> Layer<S> for DynLayerList<S> | ||
| where | ||
| S: Subscriber, | ||
| { | ||
| fn on_layer(&mut self, subscriber: &mut S) { | ||
| self.iter_mut().for_each(|l| l.on_layer(subscriber)); | ||
| } | ||
|
|
||
| fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest { | ||
| // Return highest level of interest. | ||
| let mut interest = Interest::never(); | ||
| for layer in &self.0 { | ||
| let new_interest = layer.register_callsite(metadata); | ||
| if (interest.is_sometimes() && new_interest.is_always()) | ||
| || (interest.is_never() && !new_interest.is_never()) | ||
| { | ||
| interest = new_interest; | ||
| } | ||
| } | ||
| interest | ||
| } | ||
|
|
||
| fn enabled( | ||
| &self, | ||
| metadata: &Metadata<'_>, | ||
| ctx: tracing_subscriber::layer::Context<'_, S>, | ||
| ) -> bool { | ||
| self.iter().any(|l| l.enabled(metadata, ctx.clone())) | ||
| } | ||
|
|
||
| fn on_new_span( | ||
| &self, | ||
| attrs: &Attributes<'_>, | ||
| id: &Id, | ||
| ctx: tracing_subscriber::layer::Context<'_, S>, | ||
| ) { | ||
| self.iter() | ||
| .for_each(|l| l.on_new_span(attrs, id, ctx.clone())); | ||
| } | ||
|
|
||
| fn max_level_hint(&self) -> Option<LevelFilter> { | ||
| self.iter().filter_map(|l| l.max_level_hint()).max() | ||
| } | ||
|
|
||
| fn on_record( | ||
| &self, | ||
| span: &Id, | ||
| values: &Record<'_>, | ||
| ctx: tracing_subscriber::layer::Context<'_, S>, | ||
| ) { | ||
| self.iter() | ||
| .for_each(|l| l.on_record(span, values, ctx.clone())); | ||
| } | ||
|
|
||
| fn on_follows_from( | ||
| &self, | ||
| span: &Id, | ||
| follows: &Id, | ||
| ctx: tracing_subscriber::layer::Context<'_, S>, | ||
| ) { | ||
| self.iter() | ||
| .for_each(|l| l.on_follows_from(span, follows, ctx.clone())); | ||
| } | ||
|
|
||
| fn on_event(&self, event: &Event<'_>, ctx: tracing_subscriber::layer::Context<'_, S>) { | ||
| self.iter().for_each(|l| l.on_event(event, ctx.clone())); | ||
| } | ||
|
|
||
| fn on_enter(&self, id: &Id, ctx: tracing_subscriber::layer::Context<'_, S>) { | ||
| self.iter().for_each(|l| l.on_enter(id, ctx.clone())); | ||
| } | ||
|
|
||
| fn on_exit(&self, id: &Id, ctx: tracing_subscriber::layer::Context<'_, S>) { | ||
| self.iter().for_each(|l| l.on_exit(id, ctx.clone())); | ||
| } | ||
|
|
||
| fn on_close(&self, id: Id, ctx: tracing_subscriber::layer::Context<'_, S>) { | ||
| self.iter() | ||
| .for_each(|l| l.on_close(id.clone(), ctx.clone())); | ||
| } | ||
|
|
||
| fn on_id_change(&self, old: &Id, new: &Id, ctx: tracing_subscriber::layer::Context<'_, S>) { | ||
| self.iter() | ||
| .for_each(|l| l.on_id_change(old, new, ctx.clone())); | ||
| } | ||
| } |
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