Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/compressor/lz4/CompressionPluginLZ4.h b/src/compressor/lz4/CompressionPluginLZ4.h
new file mode 100644
index 00000000..7e8cdf67
--- /dev/null
+++ b/src/compressor/lz4/CompressionPluginLZ4.h
@@ -0,0 +1,41 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 XSKY Inc.
+ *
+ * Author: Haomai Wang <haomaiwang@gmail.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_COMPRESSION_PLUGIN_LZ4_H
+#define CEPH_COMPRESSION_PLUGIN_LZ4_H
+
+// -----------------------------------------------------------------------------
+#include "ceph_ver.h"
+#include "compressor/CompressionPlugin.h"
+#include "LZ4Compressor.h"
+// -----------------------------------------------------------------------------
+
+class CompressionPluginLZ4 : public CompressionPlugin {
+
+public:
+
+  explicit CompressionPluginLZ4(CephContext* cct) : CompressionPlugin(cct)
+  {}
+
+  int factory(CompressorRef *cs, std::ostream *ss) override {
+    if (compressor == 0) {
+      LZ4Compressor *interface = new LZ4Compressor(cct);
+      compressor = CompressorRef(interface);
+    }
+    *cs = compressor;
+    return 0;
+  }
+};
+
+#endif