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Module frontier

Module frontier 

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Wrapper for frontiered trace.

Wraps a trace with since and upper frontiers so that all exposed timestamps are first advanced by the since frontier and restricted by the upper frontier. This presents a deterministic trace on the interval [since, upper), presenting only accumulations up to since (rather than partially accumulated updates) and no updates at times greater or equal to upper (even as parts of batches that span that time).

Structs§

BatchFrontier
Wrapper to restrict a batch’s times to a frontier range.
TraceFrontier
Wrapper to provide trace to nested scope.