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Renamed seed as hash_salt

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The role of this is a so-called "salt" but not "seed", rename to
get rid of confusion with other "seed" of PRNG.
This commit is contained in:
Nobuyoshi Nakada 2020-01-09 17:26:01 +09:00
parent 97485302db
commit 23fbee0311
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Notes: git 2020-01-09 19:05:57 +09:00 
Merged: https://github.com/ruby/ruby/pull/2825
1 changed files with 8 additions and 8 deletions
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16
random.c
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@ -1427,33 +1427,33 @@ random_s_rand(int argc, VALUE *argv, VALUE obj)
typedef struct { typedef struct {
st_index_t hash; st_index_t hash;
uint8_t sip[16]; uint8_t sip[16];
} seed_keys_t; } hash_salt_t;
static union { static union {
seed_keys_t key; hash_salt_t key;
uint32_t u32[type_roomof(seed_keys_t, uint32_t)]; uint32_t u32[type_roomof(hash_salt_t, uint32_t)];
} seed; } hash_salt;
static void static void
init_seed(struct MT *mt) init_seed(struct MT *mt)
{ {
int i; int i;
for (i = 0; i < numberof(seed.u32); ++i) for (i = 0; i < numberof(hash_salt.u32); ++i)
seed.u32[i] = genrand_int32(mt); hash_salt.u32[i] = genrand_int32(mt);
} }
NO_SANITIZE("unsigned-integer-overflow", extern st_index_t rb_hash_start(st_index_t h)); NO_SANITIZE("unsigned-integer-overflow", extern st_index_t rb_hash_start(st_index_t h));
st_index_t st_index_t
rb_hash_start(st_index_t h) rb_hash_start(st_index_t h)
{ {
return st_hash_start(seed.key.hash + h); return st_hash_start(hash_salt.key.hash + h);
} }
st_index_t st_index_t
rb_memhash(const void *ptr, long len) rb_memhash(const void *ptr, long len)
{ {
sip_uint64_t h = sip_hash13(seed.key.sip, ptr, len); sip_uint64_t h = sip_hash13(hash_salt.key.sip, ptr, len);
#ifdef HAVE_UINT64_T #ifdef HAVE_UINT64_T
return (st_index_t)h; return (st_index_t)h;
#else #else