ceph/src/common/FixedCDC.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #pragma once
   5
   6 #include "CDC.h"
   7
   8 class FixedCDC : public CDC {
   9 private:
  10   size_t chunk_size;
  11
  12 public:
  13   FixedCDC(int target = 18, int window_bits = 0) {
  14     set_target_bits(target, window_bits);
  15   };
  16
  17   void set_target_bits(int target, int window_bits) override {
  18     chunk_size = 1ul << target;
  19   }
  20   void calc_chunks(
  21     const bufferlist& bl,
  22     std::vector<std::pair<uint64_t, uint64_t>> *chunks) const override;
  23 };