refac(subscriber): make Callsites length const generic
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Currently, callsites arrays always have 32 elements. This is fine for task spans and waker ops. However, when adding async resources and async operations, these will likely need to be much longer. This PR changes the `Callsites` type to have a const generic parameter for the maximum number of callsites. When using `Callsites` to track async ops and resources, we can provide a much larger length value
Signed-off-by: Eliza Weisman <[email protected]>
Signed-off-by: Eliza Weisman <[email protected]>
seanmonstar
approved these changes
Aug 13, 2021
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Currently, callsites arrays always have 32 elements. This is fine for
task spans and waker ops. However, when adding async resources and async
operations, these will likely need to be much longer.
This PR changes the
Callsitestype to have a const generic parameterfor the maximum number of callsites. When using
Callsitesto trackasync ops and resources, we can provide a much larger length value.
I also tuned the length of the two callsites arrays we're currently using, and
added a quick
fmt::Debugimpl forTasksLayer.