initial code repo

[stor4nfv.git] / src / ceph / src / test / compressor / compressor_example.h

diff --git a/src/ceph/src/test/compressor/compressor_example.h b/src/ceph/src/test/compressor/compressor_example.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph distributed storage system
+ *
+ * Copyright (C) 2015 Mirantis, Inc.
+ *
+ * Author: Alyona Kiseleva <akiselyova@mirantis.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ * 
+ */
+
+#ifndef CEPH_COMPRESSOR_EXAMPLE_H
+#define CEPH_COMPRESSOR_EXAMPLE_H
+
+#include <unistd.h>
+#include <errno.h>
+#include <algorithm>
+#include <sstream>
+
+#include "crush/CrushWrapper.h"
+#include "osd/osd_types.h"
+#include "compressor/Compressor.h"
+
+class CompressorExample : public Compressor {
+public:
+  CompressorExample() : Compressor(COMP_ALG_NONE, "example") {}
+  ~CompressorExample() override {}
+
+  int compress(const bufferlist &in, bufferlist &out) override
+  {
+    out = in;
+    return 0;
+  }
+
+  int decompress(const bufferlist &in, bufferlist &out) override
+  {
+    out = in;
+    return 0;
+  }
+  int decompress(bufferlist::iterator &p, size_t compressed_len, bufferlist &out) override
+  {
+    p.copy(MIN(p.get_remaining(), compressed_len), out);
+    return 0;
+  }
+};
+
+#endif