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30 lines
520 B
C
30 lines
520 B
C
/*
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* BIRD Library -- Token Bucket Filter
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*
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* (c) 2014 Ondrej Zajicek <santiago@crfreenet.org>
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* (c) 2014 CZ.NIC z.s.p.o.
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#include "nest/bird.h"
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void
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tbf_update(struct tbf *f)
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{
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bird_clock_t delta = now - f->timestamp;
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if (delta == 0)
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return;
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f->timestamp = now;
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if ((0 < delta) && (delta < f->burst))
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{
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u32 next = f->count + delta * f->rate;
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f->count = MIN(next, f->burst);
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}
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else
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f->count = f->burst;
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}
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