diff options
-rw-r--r-- | random.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -583,7 +583,7 @@ ruby_fill_random_bytes(void *seed, size_t size, int need_secure) static void fill_random_seed(uint32_t *seed, size_t cnt) { - static int n = 0; + static rb_atomic_t n = 0; #if defined HAVE_CLOCK_GETTIME struct timespec tv; #elif defined HAVE_GETTIMEOFDAY @@ -606,7 +606,7 @@ fill_random_seed(uint32_t *seed, size_t cnt) #if SIZEOF_TIME_T > SIZEOF_INT seed[0] ^= (uint32_t)((time_t)tv.tv_sec >> SIZEOF_INT * CHAR_BIT); #endif - seed[2] ^= getpid() ^ (n++ << 16); + seed[2] ^= getpid() ^ (ATOMIC_FETCH_ADD(n, 1) << 16); seed[3] ^= (uint32_t)(VALUE)&seed; #if SIZEOF_VOIDP > SIZEOF_INT seed[2] ^= (uint32_t)((VALUE)&seed >> SIZEOF_INT * CHAR_BIT); |