Module: MurmurRedux::Native128

Defined in:
ext/murmur_native/murmur_native.c

Instance Method Summary collapse

Instance Method Details

#murmur3_128_fmix(integer) ⇒ Object 



288
289
290
291
292
293
294
295
296
297
298
 
# File 'ext/murmur_native/murmur_native.c', line 288

static VALUE
rb_fmix64(VALUE self, VALUE integer)
{
#if SIZEOF_LONG == 8
    uint64_t _int = NUM2ULONG(integer);
    return ULONG2NUM(fmix64(_int));
#else
    uint64_t _int = NUM2ULL(integer);
    return ULL2NUM(fmix64(_int));
#endif
}

#murmur3_128_int32_hash(*args) ⇒ Object 



396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
 
# File 'ext/murmur_native/murmur_native.c', line 396

static VALUE
rb_murmur3_128_int32_hash(int argc, VALUE* argv, VALUE self)
{
    VALUE ar_result;
    uint32_t result[4], _int;

    if (argc == 0 || argc > 2) {
	rb_raise(rb_eArgError, "accept 1 or 2 arguments: (int32[, seed])");
    }
    _int = NUM2UINT(argv[0]);
    MurmurHash3_x64_128(&_int, 4, argc == 1 ? 0 : NUM2UINT(argv[1]), result);
#if WORDS_BIGENDIAN
    SWAP_128_BIT();
#endif
    RETURN_128_BIT();
}

#murmur3_128_int64_hash(*args) ⇒ Object 



413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
 
# File 'ext/murmur_native/murmur_native.c', line 413

static VALUE
rb_murmur3_128_int64_hash(int argc, VALUE* argv, VALUE self)
{
    VALUE ar_result;
    uint32_t result[4];
    uint64_t _int;

    if (argc == 0 || argc > 2) {
	rb_raise(rb_eArgError, "accept 1 or 2 arguments: (int64[, seed])");
    }
#if SIZEOF_LONG == 8
    _int = NUM2ULONG(argv[0]);
#else
    _int = NUM2ULL(argv[0]);
#endif
    MurmurHash3_x64_128(&_int, 8, argc == 1 ? 0 : NUM2UINT(argv[1]), result);
#if WORDS_BIGENDIAN
    SWAP_128_BIT();
#endif
    RETURN_128_BIT();
}

#murmur3_128_str_hash(*args) ⇒ Object 



377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
 
# File 'ext/murmur_native/murmur_native.c', line 377

static VALUE
rb_murmur3_128_str_hash(int argc, VALUE* argv, VALUE self)
{
    VALUE rstr, ar_result;
    uint32_t result[4];

    if (argc == 0 || argc > 2) {
	rb_raise(rb_eArgError, "accept 1 or 2 arguments: (string[, seed])");
    }
    rstr = argv[0];
    StringValue(rstr);

    MurmurHash3_x64_128(RSTRING_PTR(rstr), RSTRING_LEN(rstr), argc == 1 ? 0 : NUM2UINT(argv[1]), result);
#if WORDS_BIGENDIAN
    SWAP_128_BIT();
#endif
    RETURN_128_BIT();
}