1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
from libcpp.pair cimport pair
cdef extern from "util/system/types.h":
ctypedef unsigned long ui64
cdef extern from "util/digest/city.h":
ui64 CityHash64(const char* buf, size_t len) nogil
pair[ui64, ui64] CityHash128(const char* buf, size_t len) nogil
ui64 CityHash64WithSeed(const char* buf, size_t len, ui64 seed) nogil
cdef extern from "library/python/cityhash/hash.h":
ui64 FileCityHash128WithSeedHigh64(const char* fpath) nogil except+
ui64 FileCityHash64(const char* fpath) nogil except+
def hash64(content):
cdef const char* s = content
cdef size_t size = len(content)
cdef ui64 res = 0
if size > 128:
with nogil:
res = CityHash64(s, size)
else:
res = CityHash64(s, size)
return res
def hash128(content):
cdef const char* s = content
cdef size_t size = len(content)
cdef pair[ui64, ui64] res = pair[ui64, ui64](0, 0)
if size > 128:
with nogil:
res = CityHash128(s, size)
else:
res = CityHash128(s, size)
return res
def hash64seed(content, seed):
cdef const char* s = content
cdef size_t size = len(content)
cdef ui64 _seed = seed;
if size > 128:
with nogil:
res = CityHash64WithSeed(s, size, _seed)
else:
res = CityHash64WithSeed(s, size, _seed)
return res
def filehash64(path):
cdef const char* p = path
cdef ui64 res = 0
with nogil:
res = FileCityHash64(p)
return res
def filehash128high64(path):
cdef const char* p = path
cdef ui64 res = 0
with nogil:
res = FileCityHash128WithSeedHigh64(p)
return res
|
