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pezkuwi-subxt/substrate/primitives/tracing/README.md
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Chevdor a30092ab42 Markdown linter (#1309)
* Add markdown linting

- add linter default rules
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fix #1243

* Fix markdown for Substrate
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Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix mangled markdown/lists
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2023-09-04 12:02:32 +03:00

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Substrate tracing primitives and macros.

To trace functions or individual 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