82 lines
2.6 KiB
Objective-C
82 lines
2.6 KiB
Objective-C
/* Copyright (c) 2013, 2018, 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 TRANSACTION_MESSAGE_INCLUDED
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#define TRANSACTION_MESSAGE_INCLUDED
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#include "plugin/group_replication/include/plugin_messages/transaction_message_interface.h"
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/*
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@class Transaction_message
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Class to convey the serialized contents of the TCLE
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*/
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class Transaction_message : public Transaction_message_interface {
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public:
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enum enum_payload_item_type {
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// This type should not be used anywhere.
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PIT_UNKNOWN = 0,
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// Length of the payload item: variable
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PIT_TRANSACTION_DATA = 1,
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// No valid type codes can appear after this one.
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PIT_MAX = 2
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};
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/**
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Default constructor
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*/
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Transaction_message();
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virtual ~Transaction_message();
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/**
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Overrides Basic_ostream::write().
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Transaction_message is a Basic_ostream. Callers can write data into
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Transaction_message's data buffer though this method.
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@param[in] buffer where the data will be read
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@param[in] length the length of the data to write
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@return returns false if succeeds, otherwise true is returned.
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*/
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bool write(const unsigned char *buffer, my_off_t length);
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/**
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Length of data in data vector
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@return data length
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*/
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my_off_t length();
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protected:
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/*
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Implementation of the template methods
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*/
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void encode_payload(std::vector<unsigned char> *buffer) const;
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void decode_payload(const unsigned char *buffer, const unsigned char *);
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private:
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std::vector<uchar> m_data;
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};
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#endif /* TRANSACTION_MESSAGE_INCLUDED */
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