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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:46:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:46:48 +0000 |
commit | 311bcfc6b3acdd6fd152798c7f287ddf74fa2a98 (patch) | |
tree | 0ec307299b1dada3701e42f4ca6eda57d708261e /src/backend/access/rmgrdesc/clogdesc.c | |
parent | Initial commit. (diff) | |
download | postgresql-15-upstream.tar.xz postgresql-15-upstream.zip |
Adding upstream version 15.4.upstream/15.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/backend/access/rmgrdesc/clogdesc.c')
-rw-r--r-- | src/backend/access/rmgrdesc/clogdesc.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/backend/access/rmgrdesc/clogdesc.c b/src/backend/access/rmgrdesc/clogdesc.c new file mode 100644 index 0000000..8751373 --- /dev/null +++ b/src/backend/access/rmgrdesc/clogdesc.c @@ -0,0 +1,59 @@ +/*------------------------------------------------------------------------- + * + * clogdesc.c + * rmgr descriptor routines for access/transam/clog.c + * + * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * + * IDENTIFICATION + * src/backend/access/rmgrdesc/clogdesc.c + * + *------------------------------------------------------------------------- + */ +#include "postgres.h" + +#include "access/clog.h" + + +void +clog_desc(StringInfo buf, XLogReaderState *record) +{ + char *rec = XLogRecGetData(record); + uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK; + + if (info == CLOG_ZEROPAGE) + { + int pageno; + + memcpy(&pageno, rec, sizeof(int)); + appendStringInfo(buf, "page %d", pageno); + } + else if (info == CLOG_TRUNCATE) + { + xl_clog_truncate xlrec; + + memcpy(&xlrec, rec, sizeof(xl_clog_truncate)); + appendStringInfo(buf, "page %d; oldestXact %u", + xlrec.pageno, xlrec.oldestXact); + } +} + +const char * +clog_identify(uint8 info) +{ + const char *id = NULL; + + switch (info & ~XLR_INFO_MASK) + { + case CLOG_ZEROPAGE: + id = "ZEROPAGE"; + break; + case CLOG_TRUNCATE: + id = "TRUNCATE"; + break; + } + + return id; +} |