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pezkuwi-subxt/substrate/primitives/tracing
Bastian Köcher db8a0cafa9 Fixes logging of target names with dashes (#7281)
* Fixes logging of target names with dashes

There was a bug in tracing-core which resulted in not supporting dashes
in target names. This was fixed upstream. Besides that a test was added
to ensure that we don't break this again.

* Extend test
2020-10-08 18:40:27 +00:00
..
2020-09-22 13:38:23 +00:00

Substrate tracing primitives and macros.

To trace functions or invidual code in Substrate, this crate provides [within_span] and [enter_span]. See the individual docs for how to use these macros.

Note that to allow traces from wasm execution environment there are 2 reserved identifiers for tracing Field recording, stored in the consts: WASM_TARGET_KEY and WASM_NAME_KEY - if you choose to record fields, you must ensure that your identifiers do not clash with either of these.

Additionally, we have a const: WASM_TRACE_IDENTIFIER, which holds a span name used to signal that the 'actual' span name and target should be retrieved instead from the associated Fields mentioned above.

License: Apache-2.0