hashkit.hpp 2.7 KB

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  1. /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
  2. *
  3. * HashKit library
  4. *
  5. * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
  6. * Copyright (C) 2006-2010 Brian Aker All rights reserved.
  7. *
  8. * Redistribution and use in source and binary forms, with or without
  9. * modification, are permitted provided that the following conditions are
  10. * met:
  11. *
  12. * * Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. *
  15. * * Redistributions in binary form must reproduce the above
  16. * copyright notice, this list of conditions and the following disclaimer
  17. * in the documentation and/or other materials provided with the
  18. * distribution.
  19. *
  20. * * The names of its contributors may not be used to endorse or
  21. * promote products derived from this software without specific prior
  22. * written permission.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35. *
  36. */
  37. #pragma once
  38. #include <libhashkit-1.0/hashkit.h>
  39. #include <string>
  40. class Hashkit {
  41. public:
  42. Hashkit()
  43. {
  44. hashkit_create(&self);
  45. }
  46. Hashkit(const Hashkit& source)
  47. {
  48. hashkit_clone(&self, &source.self);
  49. }
  50. Hashkit& operator=(const Hashkit& source)
  51. {
  52. hashkit_free(&self);
  53. hashkit_clone(&self, &source.self);
  54. return *this;
  55. }
  56. friend bool operator==(const Hashkit &left, const Hashkit &right)
  57. {
  58. return hashkit_compare(&left.self, &right.self);
  59. }
  60. uint32_t digest(std::string& str)
  61. {
  62. return hashkit_digest(&self, str.c_str(), str.length());
  63. }
  64. uint32_t digest(const char *key, size_t key_length)
  65. {
  66. return hashkit_digest(&self, key, key_length);
  67. }
  68. hashkit_return_t set_function(hashkit_hash_algorithm_t hash_algorithm)
  69. {
  70. return hashkit_set_function(&self, hash_algorithm);
  71. }
  72. hashkit_return_t set_distribution_function(hashkit_hash_algorithm_t hash_algorithm)
  73. {
  74. return hashkit_set_function(&self, hash_algorithm);
  75. }
  76. ~Hashkit()
  77. {
  78. hashkit_free(&self);
  79. }
  80. private:
  81. hashkit_st self;
  82. };