ref: 84f6061a92d92f6f0136f7d6ab42fa03c38d5a78
dir: /sys/src/libsec/port/fastrand.c/
#include <u.h>
#include <libc.h>
#include <libsec.h>
/*
* use the X917 random number generator to create random
* numbers (faster than truerand() but not as random).
*/
ulong
fastrand(void)
{
ulong x;
genrandom((uchar*)&x, sizeof x);
return x;
}