Kevin Leimkuhler
75ab7c9e9b
## Motivation As described in #905, subscribers have no way to get the numeric value of a span ID back _out_ of a `Span`. ## Solution Add a `Span::into_u64` method that returns the inner `u64` span ID Closes #905 Signed-off-by: kleimkuhler <[email protected]>
tokio-trace-core
Core primitives for tokio-trace.
Overview
tokio-trace is a framework for instrumenting Rust programs to collect
structured, event-based diagnostic information. This crate defines the core
primitives of tokio-trace.
The crate provides:
-
Spanidentifies a span within the execution of a program. -
Subscriber, the trait implemented to collect trace data. -
MetadataandCallsiteprovide information describingSpans. -
FieldandFieldSetdescribe and access the structured data attached to aSpan. -
Dispatchallows span events to be dispatched toSubscribers.
In addition, it defines the global callsite registry and per-thread current dispatcher which other components of the tracing system rely on.
Application authors will typically not use this crate directly. Instead, they
will use the tokio-trace crate, which provides a much more fully-featured
API. However, this crate's API will change very infrequently, so it may be used
when dependencies must be very stable.
License
This project is licensed under the MIT license.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Tokio by you, shall be licensed as MIT, without any additional terms or conditions.