[#BloombergLP-balb-LeakyBucket-calculateCapacity]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balb.adoc[balb]::xref:BloombergLP/balb/LeakyBucket.adoc[LeakyBucket]::calculateCapacity
:relfileprefix: ../../../
:mrdocs:

Return the capacity of a leaky bucket as the rounded‐down product of the specified `drainRate` by the specified `timeWindow`. If the result evaluates to 0, return 1. The behavior is undefined unless the product of `drainRate` and `timeWindow` can be represented by a 64‐bit unsigned integral type.

== Synopsis

Declared in `<balb_leakybucket.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bsls/Types/Uint64.adoc[bsls::Types::Uint64]
calculateCapacity(
    xref:BloombergLP/bsls/Types/Uint64.adoc[bsls::Types::Uint64] drainRate,
    xref:BloombergLP/bsls/TimeInterval.adoc[bsls::TimeInterval] const& timeWindow);
----


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