stasis-aries-wal/stasis/hash.h

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#include <stasis/crc32.h>
#include <stasis/common.h>
#ifndef __HASH_H
#define __HASH_H
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/**
@todo write a test harness for this...
*/
uint64_t max_bucket(unsigned char tableBits, uint64_t nextExtension);
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/**
This function maps from the length of the bucket list to a appropriate set
of linear hash parameters to fill that size.
*/
void hashGetParamsForSize(uint64_t desiredSize, unsigned char *tableBits,
uint64_t* nextExtension);
/**
XXX despite it's interface, hash can't return values > 2^32!
*/
uint64_t hash(const void * val, uint64_t val_length, unsigned char tableBits, uint64_t nextExtension);
#define twoToThe(x) (1 << (x))
uint32_t logBase2(uint64_t value);
#endif /*__HASH_H */