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Diffstat (limited to 'src/include/access/bufmask.h')
| -rw-r--r-- | src/include/access/bufmask.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/include/access/bufmask.h b/src/include/access/bufmask.h new file mode 100644 index 0000000..d86064c --- /dev/null +++ b/src/include/access/bufmask.h @@ -0,0 +1,32 @@ +/*------------------------------------------------------------------------- + * + * bufmask.h + * Definitions for buffer masking routines, used to mask certain bits + * in a page which can be different when the WAL is generated + * and when the WAL is applied. This is really the job of each + * individual rmgr, but we make things easier by providing some + * common routines to handle cases which occur in multiple rmgrs. + * + * Portions Copyright (c) 2016-2020, PostgreSQL Global Development Group + * + * src/include/access/bufmask.h + * + *------------------------------------------------------------------------- + */ + +#ifndef BUFMASK_H +#define BUFMASK_H + +#include "storage/block.h" +#include "storage/bufmgr.h" + +/* Marker used to mask pages consistently */ +#define MASK_MARKER 0 + +extern void mask_page_lsn_and_checksum(Page page); +extern void mask_page_hint_bits(Page page); +extern void mask_unused_space(Page page); +extern void mask_lp_flags(Page page); +extern void mask_page_content(Page page); + +#endif |