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60 lines
1.9 KiB
60 lines
1.9 KiB
/* Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef MYSQL_BUFFER_H
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#define MYSQL_BUFFER_H
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#include <stddef.h>
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#include "my_inttypes.h"
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#include "plugin/keyring/common/i_serialized_object.h"
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#include "plugin/keyring/common/keyring_memory.h"
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namespace keyring {
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class Buffer : public ISerialized_object {
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public:
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Buffer() : data(NULL) { mark_as_empty(); }
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Buffer(size_t memory_size) : data(NULL) { reserve(memory_size); }
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~Buffer() {
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if (data != NULL) delete[] data;
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}
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void free();
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bool get_next_key(IKey **key);
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bool has_next_key();
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void reserve(size_t memory_size);
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uchar *data;
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size_t size;
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size_t position;
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private:
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Buffer(const Buffer &);
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Buffer &operator=(const Buffer &);
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inline void mark_as_empty() { size = position = 0; }
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};
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} // namespace keyring
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#endif // MYSQL_BUFFER_H
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