Алгоритми маршрутизації в мережах

void

intvl_random(struct timeval *tp,/* put value here */

u_long lo,/* value is after this second */

u_long hi)/* and before this */

{

tp->tv_sec = (time_t)(hi == lo

? lo

: (lo + random() % ((hi - lo))));

tp->tv_usec = random() % 1000000;

}

void

timevaladd(struct timeval *t1,

struct timeval *t2)

{

t1->tv_sec += t2->tv_sec;

if ((t1->tv_usec += t2->tv_usec) > 1000000) {

t1->tv_sec++;

t1->tv_usec -= 1000000;

}

}

/* t1 = t2 - t3

*/

static void

timevalsub(struct timeval *t1,

struct timeval *t2,