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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:15:05 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:15:05 +0000 |
commit | 46651ce6fe013220ed397add242004d764fc0153 (patch) | |
tree | 6e5299f990f88e60174a1d3ae6e48eedd2688b2b /src/include/access/xloginsert.h | |
parent | Initial commit. (diff) | |
download | postgresql-14-46651ce6fe013220ed397add242004d764fc0153.tar.xz postgresql-14-46651ce6fe013220ed397add242004d764fc0153.zip |
Adding upstream version 14.5.upstream/14.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/access/xloginsert.h')
-rw-r--r-- | src/include/access/xloginsert.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/include/access/xloginsert.h b/src/include/access/xloginsert.h new file mode 100644 index 0000000..f1d8c39 --- /dev/null +++ b/src/include/access/xloginsert.h @@ -0,0 +1,66 @@ +/* + * xloginsert.h + * + * Functions for generating WAL records + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/access/xloginsert.h + */ +#ifndef XLOGINSERT_H +#define XLOGINSERT_H + +#include "access/rmgr.h" +#include "access/xlogdefs.h" +#include "storage/block.h" +#include "storage/buf.h" +#include "storage/relfilenode.h" +#include "utils/relcache.h" + +/* + * The minimum size of the WAL construction working area. If you need to + * register more than XLR_NORMAL_MAX_BLOCK_ID block references or have more + * than XLR_NORMAL_RDATAS data chunks in a single WAL record, you must call + * XLogEnsureRecordSpace() first to allocate more working memory. + */ +#define XLR_NORMAL_MAX_BLOCK_ID 4 +#define XLR_NORMAL_RDATAS 20 + +/* flags for XLogRegisterBuffer */ +#define REGBUF_FORCE_IMAGE 0x01 /* force a full-page image */ +#define REGBUF_NO_IMAGE 0x02 /* don't take a full-page image */ +#define REGBUF_WILL_INIT (0x04 | 0x02) /* page will be re-initialized at + * replay (implies NO_IMAGE) */ +#define REGBUF_STANDARD 0x08 /* page follows "standard" page layout, + * (data between pd_lower and pd_upper + * will be skipped) */ +#define REGBUF_KEEP_DATA 0x10 /* include data even if a full-page image + * is taken */ + +/* prototypes for public functions in xloginsert.c: */ +extern void XLogBeginInsert(void); +extern void XLogSetRecordFlags(uint8 flags); +extern XLogRecPtr XLogInsert(RmgrId rmid, uint8 info); +extern void XLogEnsureRecordSpace(int max_block_id, int ndatas); +extern void XLogRegisterData(char *data, int len); +extern void XLogRegisterBuffer(uint8 block_id, Buffer buffer, uint8 flags); +extern void XLogRegisterBlock(uint8 block_id, RelFileNode *rnode, + ForkNumber forknum, BlockNumber blknum, char *page, + uint8 flags); +extern void XLogRegisterBufData(uint8 block_id, char *data, int len); +extern void XLogResetInsertion(void); +extern bool XLogCheckBufferNeedsBackup(Buffer buffer); + +extern XLogRecPtr log_newpage(RelFileNode *rnode, ForkNumber forkNum, + BlockNumber blk, char *page, bool page_std); +extern void log_newpages(RelFileNode *rnode, ForkNumber forkNum, int num_pages, + BlockNumber *blknos, char **pages, bool page_std); +extern XLogRecPtr log_newpage_buffer(Buffer buffer, bool page_std); +extern void log_newpage_range(Relation rel, ForkNumber forkNum, + BlockNumber startblk, BlockNumber endblk, bool page_std); +extern XLogRecPtr XLogSaveBufferForHint(Buffer buffer, bool buffer_std); + +extern void InitXLogInsert(void); + +#endif /* XLOGINSERT_H */ |