Return to tbf.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / bird / lib

Annotation of embedaddon/bird/lib/tbf.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  *     BIRD Library -- Token Bucket Filter
        !             3:  *
        !             4:  *     (c) 2014 Ondrej Zajicek <santiago@crfreenet.org>
        !             5:  *     (c) 2014 CZ.NIC z.s.p.o.
        !             6:  *
        !             7:  *     Can be freely distributed and used under the terms of the GNU GPL.
        !             8:  */
        !             9: 
        !            10: #include "nest/bird.h"
        !            11: 
        !            12: void
        !            13: tbf_update(struct tbf *f)
        !            14: {
        !            15:   bird_clock_t delta = now - f->timestamp;
        !            16: 
        !            17:   if (delta == 0)
        !            18:     return;
        !            19: 
        !            20:   f->timestamp = now;
        !            21: 
        !            22:   if ((0 < delta) && (delta < f->burst))
        !            23:   {
        !            24:     u32 next = f->count + delta * f->rate;
        !            25:     f->count = MIN(next, f->burst);
        !            26:   }
        !            27:   else
        !            28:     f->count = f->burst;
        !            29: }