hash.hpp

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#pragma once
 
#include <metrohash128/metrohash128.h>
#include <sha1/sha1.hpp>
#include <stdio.h>
#include <string>
 
namespace jaffarCommon
{
 
namespace hash
{
 
typedef _uint128_t hash_t;
 
__JAFFAR_COMMON_INLINE__ std::string getSHA1String(const std::string& string) { return sha1::SHA1::GetHash((const uint8_t*)string.data(), string.size()); }
 
__JAFFAR_COMMON_INLINE__ hash_t calculateMetroHash(const void* data, size_t size)
{
  MetroHash128 hash;
  hash.Update(data, size);
  hash_t result;
  hash.Finalize(reinterpret_cast<uint8_t*>(&result));
  return result;
}
 
__JAFFAR_COMMON_INLINE__ std::string hashToString(const hash_t hash)
{
  // Creating hash string
  char hashStringBuffer[256];
  snprintf(hashStringBuffer, sizeof(hashStringBuffer), "0x%016lX%016lX", (unsigned long)hash.first, (unsigned long)hash.second);
  return std::string(hashStringBuffer);
}
 
__JAFFAR_COMMON_INLINE__ hash_t hashString(const std::string& string) { return calculateMetroHash(string.data(), string.size()); }
 
} // namespace hash
 
} // namespace jaffarCommon