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* random.c (rb_hash_start): moved from string.c.
* random.c (Init_RandomSeed2): register global address before set. * random.c (Init_RandomSeed): initialize hashseed. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25640 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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parent
252168ed1b
commit
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2 changed files with 37 additions and 35 deletions
46
random.c
46
random.c
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@ -729,6 +729,7 @@ static VALUE
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rb_f_srand(int argc, VALUE *argv, VALUE obj)
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{
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VALUE seed, old;
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struct Random *r = &default_rand;
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rb_secure(4);
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if (argc == 0) {
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@ -737,8 +738,8 @@ rb_f_srand(int argc, VALUE *argv, VALUE obj)
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else {
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rb_scan_args(argc, argv, "01", &seed);
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}
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old = default_rand.rnd.seed;
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default_rand.rnd.seed = rand_init(&default_rand.rnd.mt, seed);
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old = r->rnd.seed;
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r->rnd.seed = rand_init(&r->rnd.mt, seed);
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return old;
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}
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@ -1126,25 +1127,53 @@ rb_f_rand(int argc, VALUE *argv, VALUE obj)
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return r;
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}
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static st_index_t hashseed;
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void
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Init_RandomSeed(void)
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{
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fill_random_seed(default_rand.initial);
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init_by_array(&default_rand.rnd.mt, default_rand.initial, DEFAULT_SEED_CNT);
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struct Random *r = &default_rand;
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struct MT *mt = &r->rnd.mt;
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fill_random_seed(r->initial);
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init_by_array(mt, r->initial, DEFAULT_SEED_CNT);
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hashseed = genrand_int32(mt);
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#if SIZEOF_ST_INDEX_T*CHAR_BIT > 4*8
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hashseed <<= 32;
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hashseed |= genrand_int32(mt);
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#endif
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#if SIZEOF_ST_INDEX_T*CHAR_BIT > 8*8
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hashseed <<= 32;
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hashseed |= genrand_int32(mt);
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#endif
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#if SIZEOF_ST_INDEX_T*CHAR_BIT > 12*8
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hashseed <<= 32;
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hashseed |= genrand_int32(mt);
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#endif
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}
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st_index_t
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rb_hash_start(st_index_t h)
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{
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return st_hash_start(hashseed + h);
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}
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static void
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Init_RandomSeed2(void)
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{
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default_rand.rnd.seed = make_seed_value(default_rand.initial);
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memset(default_rand.initial, 0, DEFAULT_SEED_LEN);
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struct Random *r = &default_rand;
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rb_global_variable(&r->rnd.seed);
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r->rnd.seed = make_seed_value(r->initial);
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memset(r->initial, 0, DEFAULT_SEED_LEN);
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}
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void
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rb_reset_random_seed(void)
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{
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uninit_genrand(&default_rand.rnd.mt);
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default_rand.rnd.seed = INT2FIX(0);
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struct Random *r = &default_rand;
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uninit_genrand(&r->rnd.mt);
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r->rnd.seed = INT2FIX(0);
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}
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void
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@ -1153,7 +1182,6 @@ Init_Random(void)
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Init_RandomSeed2();
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rb_define_global_function("srand", rb_f_srand, -1);
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rb_define_global_function("rand", rb_f_rand, -1);
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rb_global_variable(&default_rand.rnd.seed);
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rb_cRandom = rb_define_class("Random", rb_cObject);
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rb_define_alloc_func(rb_cRandom, random_alloc);
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26
string.c
26
string.c
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@ -1992,32 +1992,6 @@ rb_str_concat(VALUE str1, VALUE str2)
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return rb_str_append(str1, str2);
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}
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st_index_t
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rb_hash_start(st_index_t h)
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{
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static int hashseed_init = 0;
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static st_index_t hashseed;
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if (!hashseed_init) {
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hashseed = rb_genrand_int32();
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#if SIZEOF_ST_INDEX_T*CHAR_BIT > 4*8
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hashseed <<= 32;
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hashseed |= rb_genrand_int32();
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#endif
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#if SIZEOF_ST_INDEX_T*CHAR_BIT > 8*8
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hashseed <<= 32;
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hashseed |= rb_genrand_int32();
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#endif
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#if SIZEOF_ST_INDEX_T*CHAR_BIT > 12*8
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hashseed <<= 32;
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hashseed |= rb_genrand_int32();
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#endif
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hashseed_init = 1;
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}
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return st_hash_start(hashseed + h);
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}
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st_index_t
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rb_memhash(const void *ptr, long len)
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{
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