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/*-------------------------------------------------------------------------
* message.h
* Exports from replication/logical/message.c
*
* Copyright (c) 2013-2016, PostgreSQL Global Development Group
*
* src/include/replication/message.h
*-------------------------------------------------------------------------
*/
#ifndef PG_LOGICAL_MESSAGE_H
#define PG_LOGICAL_MESSAGE_H
#include "access/xlog.h"
#include "access/xlogdefs.h"
#include "access/xlogreader.h"
/*
* Generic logical decoding message wal record.
*/
typedef struct xl_logical_message
{
Oid dbId; /* database Oid emitted from */
bool transactional; /* is message transactional? */
Size prefix_size; /* length of prefix */
Size message_size; /* size of the message */
char message[FLEXIBLE_ARRAY_MEMBER]; /* message including the null
* terminated prefix of length
* prefix_size */
} xl_logical_message;
#define SizeOfLogicalMessage (offsetof(xl_logical_message, message))
extern XLogRecPtr LogLogicalMessage(const char *prefix, const char *message,
size_t size, bool transactional);
/* RMGR API*/
#define XLOG_LOGICAL_MESSAGE 0x00
void logicalmsg_redo(XLogReaderState *record);
void logicalmsg_desc(StringInfo buf, XLogReaderState *record);
const char *logicalmsg_identify(uint8 info);
#endif /* PG_LOGICAL_MESSAGE_H */