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deps/oblib/src/lib/compress/ob_compressor.h

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OCEANBASE_COMMON_COMPRESS_OB_COMPRESSOR_H_
+#define OCEANBASE_COMMON_COMPRESS_OB_COMPRESSOR_H_
+
+#include <stdint.h>
+#include "lib/string/ob_string.h"
+namespace oceanbase {
+namespace common {
+class ObCompressor {
+  public:
+  static const char* none_compressor_name;
+
+  public:
+  ObCompressor()
+  {}
+  virtual ~ObCompressor()
+  {}
+
+  virtual int compress(const char* src_buffer, const int64_t src_data_size, char* dst_buffer,
+      const int64_t dst_buffer_size, int64_t& dst_data_size) = 0;
+  virtual int decompress(const char* src_buffer, const int64_t src_data_size, char* dst_buffer,
+      const int64_t dst_buffer_size, int64_t& dst_data_size) = 0;
+  virtual int get_max_overflow_size(const int64_t src_data_size, int64_t& max_overflow_size) const = 0;
+
+  virtual const char* get_compressor_name() const = 0;
+};
+
+}  // namespace common
+}  // namespace oceanbase
+
+#endif