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-rw-r--r--src/common/FixedCDC.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/common/FixedCDC.h b/src/common/FixedCDC.h
new file mode 100644
index 000000000..a19a1859b
--- /dev/null
+++ b/src/common/FixedCDC.h
@@ -0,0 +1,23 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#pragma once
+
+#include "CDC.h"
+
+class FixedCDC : public CDC {
+private:
+ size_t chunk_size;
+
+public:
+ FixedCDC(int target = 18, int window_bits = 0) {
+ set_target_bits(target, window_bits);
+ };
+
+ void set_target_bits(int target, int window_bits) override {
+ chunk_size = 1ul << target;
+ }
+ void calc_chunks(
+ const bufferlist& bl,
+ std::vector<std::pair<uint64_t, uint64_t>> *chunks) const override;
+};