tracing

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History

subscriber: Introduce Registry; Refactor fmt::Subscriber in terms of Registry + Layers (#420 )

This branch introduces: 

- A registry build atop of https://github.com/hawkw/sharded-slab. Layers
  are expected to consume this registry through the traits `SpanData`,
  `LookupSpan`, and `LookupMetadata`. Layer-specific data, such as
  formatted spans and events, are stored in the `Extensions` typemap. Data
  is writable via the `ExtensionsMut` view struct of the typemap. This
  enables layers to read and write data that they are specifically
  interested in.

- The `tracing_subscriber::fmt::Subscriber` has been re-implemented in
  terms of `tracing_subscriber::registry::Registry` and
  `tracing_subscriber::fmt::Layer`.

- The event/field formatters have been modified (in a non-backwards
  compatible way) to accept a `tracing_subscriber::fmt::FmtContext`. A
  similar structure existed in `tracing_subscriber::fmt::Subscriber`, but
  it was not publicly exposed.

Resolves #135 Resolves #157 Resolves #391

Signed-off-by: David Barsky <me@davidbarsky.com>
Coauthored-by: Eliza Weisman <eliza@buoyant.io>

2019-11-13 19:47:37 -05:00

duplicate_spans.rs

fmt: Track duplicate spans in fmt context (#361 )

2019-09-25 14:39:40 -07:00

field_filter.rs

subscriber: rename Filter to EnvFilter (#339 )

2019-09-12 12:44:40 -07:00

filter_log.rs

subscriber: fix incorrect filtering for tracing-log events (#344 )

2019-09-12 14:37:50 -07:00

filter.rs

subscriber: rename Filter to EnvFilter (#339 )