/*
* Generate a 32-bit counter. This should be more machine dependent,
* using cycle counters and the like when possible.
*/
static inline u_int32_t
rndpseudo_counter(void)
{
struct timeval tv;
#if defined(__HAVE_CPU_COUNTER) && !defined(_RUMPKERNEL) /* XXX: bad pooka */
if (cpu_hascounter())
return (cpu_counter32());
#endif
microtime(&tv);
return (tv.tv_sec * 1000000 + tv.tv_usec);
}
static inline uint32_t
cprng_counter(void)
{
struct timeval tv;
#if defined(__HAVE_CPU_COUNTER)
if (cpu_hascounter())
return cpu_counter32();
#endif
if (__predict_false(cold)) {
static int ctr;
/* microtime unsafe if clock not running yet */
return ctr++;
}
getmicrotime(&tv);
return (tv.tv_sec * 1000000 + tv.tv_usec);
}
