Return how far this turnstile lags behind schedule, in microseconds.
Synopsis
Declared in <bslmt_turnstile.h>
bsls::Types::Int64
lagTime() const;Description
Return the positive number of microseconds difference between the the current time and the next turn, indicating that the turnstile is lagging behind the configured rate. Otherwise, return 0.
Return Value
positive lag in microseconds, or 0 if not lagging
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