1 /*------------------------------------------------------------------------- 2 * 3 * generic_xlog.h 4 * Generic xlog API definition. 5 * 6 * 7 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group 8 * Portions Copyright (c) 1994, Regents of the University of California 9 * 10 * src/include/access/generic_xlog.h 11 * 12 *------------------------------------------------------------------------- 13 */ 14 #ifndef GENERIC_XLOG_H 15 #define GENERIC_XLOG_H 16 17 #include "access/xlog.h" 18 #include "access/xlog_internal.h" 19 #include "access/xloginsert.h" 20 #include "storage/bufpage.h" 21 #include "utils/rel.h" 22 23 #define MAX_GENERIC_XLOG_PAGES XLR_NORMAL_MAX_BLOCK_ID 24 25 /* Flag bits for GenericXLogRegisterBuffer */ 26 #define GENERIC_XLOG_FULL_IMAGE 0x0001 /* write full-page image */ 27 28 /* state of generic xlog record construction */ 29 struct GenericXLogState; 30 typedef struct GenericXLogState GenericXLogState; 31 32 /* API for construction of generic xlog records */ 33 extern GenericXLogState *GenericXLogStart(Relation relation); 34 extern Page GenericXLogRegisterBuffer(GenericXLogState *state, Buffer buffer, 35 int flags); 36 extern XLogRecPtr GenericXLogFinish(GenericXLogState *state); 37 extern void GenericXLogAbort(GenericXLogState *state); 38 39 /* functions defined for rmgr */ 40 extern void generic_redo(XLogReaderState *record); 41 extern const char *generic_identify(uint8 info); 42 extern void generic_desc(StringInfo buf, XLogReaderState *record); 43 extern void generic_mask(char *pagedata, BlockNumber blkno); 44 45 #endif /* GENERIC_XLOG_H */ 46