73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/* 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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#include "plugin/keyring/hash_to_buffer_serializer.h"
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#include <stddef.h>
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#include <sys/types.h>
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namespace keyring {
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bool Hash_to_buffer_serializer::store_key_in_buffer(const IKey *key,
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Buffer *buffer) {
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if (buffer->size < buffer->position + key->get_key_pod_size()) return true;
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key->store_in_buffer(buffer->data, &(buffer->position));
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return false;
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}
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bool Hash_to_buffer_serializer::store_keys_in_buffer(
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const collation_unordered_map<std::string, std::unique_ptr<IKey>>
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&keys_hash,
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Buffer *buffer) {
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for (const auto &key_and_value : keys_hash) {
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if (store_key_in_buffer(key_and_value.second.get(), buffer)) return true;
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}
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return false;
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}
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ISerialized_object *Hash_to_buffer_serializer::serialize(
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const collation_unordered_map<std::string, std::unique_ptr<IKey>>
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&keys_hash,
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IKey *key, const Key_operation operation) {
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size_t memory_needed_for_buffer_after_operation = memory_needed_for_buffer;
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switch (operation) {
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case STORE_KEY:
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memory_needed_for_buffer_after_operation += key->get_key_pod_size();
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break;
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case REMOVE_KEY:
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memory_needed_for_buffer_after_operation -= key->get_key_pod_size();
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break;
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case NONE:
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case ROTATE:
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break;
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}
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Buffer *buffer = new Buffer(memory_needed_for_buffer_after_operation);
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buffer->set_key_operation(operation);
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if (store_keys_in_buffer(keys_hash, buffer)) {
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delete buffer;
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return NULL;
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}
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return buffer;
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}
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} // namespace keyring
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