diff options
Diffstat (limited to 'src/libutil/util.c')
| -rw-r--r-- | src/libutil/util.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/src/libutil/util.c b/src/libutil/util.c index 55696c212..ecdd7b2b9 100644 --- a/src/libutil/util.c +++ b/src/libutil/util.c @@ -2624,17 +2624,22 @@ xoroshiro_rotl (const guint64 x, int k) { return (x << k) | (x >> (64 - k)); } - gdouble rspamd_random_double_fast (void) { - const guint64 s0 = xorshifto_seed[0]; - guint64 s1 = xorshifto_seed[1]; + return rspamd_random_double_fast_seed (xorshifto_seed); +} + +gdouble +rspamd_random_double_fast_seed (guint64 seed[2]) +{ + const guint64 s0 = seed[0]; + guint64 s1 = seed[1]; const guint64 result = s0 + s1; s1 ^= s0; - xorshifto_seed[0] = xoroshiro_rotl(s0, 55) ^ s1 ^ (s1 << 14); - xorshifto_seed[1] = xoroshiro_rotl (s1, 36); + seed[0] = xoroshiro_rotl(s0, 55) ^ s1 ^ (s1 << 14); + seed[1] = xoroshiro_rotl (s1, 36); return rspamd_double_from_int64 (result); } |