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34 lines
1.2 KiB
34 lines
1.2 KiB
from libc.stdint cimport uint64_t, int64_t, int32_t
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cdef extern from "murmurhash/MurmurHash3.h":
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void MurmurHash3_x86_32(void * key, uint64_t len, uint64_t seed, void* out) nogil
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void MurmurHash3_x86_128(void * key, int len, uint32_t seed, void* out) nogil
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void MurmurHash3_x64_128(void * key, int len, uint32_t seed, void* out) nogil
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cdef extern from "murmurhash/MurmurHash2.h":
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uint64_t MurmurHash64A(void * key, int length, uint32_t seed) nogil
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uint64_t MurmurHash64B(void * key, int length, uint32_t seed) nogil
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cdef uint32_t hash32(void* key, int length, uint32_t seed) nogil:
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cdef int32_t out
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MurmurHash3_x86_32(key, length, seed, &out)
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return out
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cdef uint64_t hash64(void* key, int length, uint64_t seed) nogil:
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return MurmurHash64A(key, length, seed)
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cdef uint64_t real_hash64(void* key, int length, uint64_t seed) nogil:
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cdef uint64_t[2] out
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MurmurHash3_x86_128(key, length, seed, &out)
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return out[1]
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cdef void hash128_x86(const void* key, int length, uint32_t seed, void* out) nogil:
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MurmurHash3_x86_128(key, length, seed, out)
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cdef void hash128_x64(const void* key, int length, uint32_t seed, void* out) nogil:
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MurmurHash3_x64_128(key, length, seed, out)
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