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Move WAL-related definitions from dbcommands.h to separate header file.

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This makes it easier to write frontend programs that needs to understand
the WAL record format of CREATE/DROP DATABASE. dbcommands.h cannot easily
be #included in a frontend program, because it pulls in other header files
that need backend stuff, but the new dbcommands_xlog.h header file has
fewer dependencies.
This commit is contained in:
Heikki Linnakangas
2015-03-09 15:49:10 +02:00
parent b9e538b190
commit f1fd515b39
6 changed files with 48 additions and 27 deletions
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44
src/include/commands/dbcommands_xlog.h Normal file
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/*-------------------------------------------------------------------------
*
* dbcommands_xlog.h
* Database resource manager XLOG definitions (create/drop database).
*
*
* Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/commands/dbcommands_xlog.h
*
*-------------------------------------------------------------------------
*/
#ifndef DBCOMMANDS_XLOG_H
#define DBCOMMANDS_XLOG_H
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
/* record types */
#define XLOG_DBASE_CREATE 0x00
#define XLOG_DBASE_DROP 0x10
typedef struct xl_dbase_create_rec
{
/* Records copying of a single subdirectory incl. contents */
Oid db_id;
Oid tablespace_id;
Oid src_db_id;
Oid src_tablespace_id;
} xl_dbase_create_rec;
typedef struct xl_dbase_drop_rec
{
/* Records dropping of a single subdirectory incl. contents */
Oid db_id;
Oid tablespace_id;
} xl_dbase_drop_rec;
extern void dbase_redo(XLogReaderState *rptr);
extern void dbase_desc(StringInfo buf, XLogReaderState *rptr);
extern const char *dbase_identify(uint8 info);
#endif /* DBCOMMANDS_XLOG_H */