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/* Copyright (c) 2016, 2023, Oracle and/or its affiliates. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by the Free Software Foundation. This program is also distributed with certain software (including but not limited to OpenSSL) that is licensed under separate terms, as designated in a particular file or component or in included license documentation. The authors of MySQL hereby grant you an additional permission to link the program and your derivative works with the separately licensed software that they have included with MySQL. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0, for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ #ifndef SINGLE_PRIMARY_MESSAGE_INCLUDED #define SINGLE_PRIMARY_MESSAGE INCLUDED #include <string> #include <set> #include <vector> #include "gcs_plugin_messages.h" class Single_primary_message : public Plugin_gcs_message { public: enum enum_payload_item_type { // This type should not be used anywhere. PIT_UNKNOWN= 0, // Length of the payload item: 2 bytes PIT_SINGLE_PRIMARY_MESSAGE_TYPE= 1, // No valid type codes can appear after this one. PIT_MAX= 2 }; /** The several single primary type messages. */ typedef enum { /**This type should not be used anywhere.*/ SINGLE_PRIMARY_UNKNOWN= 0, /**A new primary was elected.*/ SINGLE_PRIMARY_NEW_PRIMARY_MESSAGE= 1, /**Primary did apply queue after election.*/ SINGLE_PRIMARY_QUEUE_APPLIED_MESSAGE= 2, /**The end of the enum.*/ SINGLE_PRIMARY_MESSAGE_TYPE_END= 3 } Single_primary_message_type; /** Message constructor @param[in] type the single primary message type */ Single_primary_message(Single_primary_message_type type); /** Message destructor */ virtual ~Single_primary_message(); /** Message constructor for raw data @param[in] buf raw data @param[in] len raw length */ Single_primary_message(const uchar* buf, uint64 len); /** Returns this single primary message type */ Single_primary_message_type get_single_primary_message_type() { return single_primary_message_type; } protected: /** Encodes the message contents for transmission. @param[out] buffer the message buffer to be written */ void encode_payload(std::vector<unsigned char>* buffer) const; /** Message decoding method @param[in] buffer the received data @param[in] end the end of buffer */ void decode_payload(const unsigned char* buffer, const unsigned char* end); private: /**The message type*/ Single_primary_message_type single_primary_message_type; }; #endif /* SINGLE_PRIMARY_MESSAGE_INCLUDED */