From 293913568e6a7a86fd1479e1cff8e2ecb58d6568 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 15:44:03 +0200 Subject: Adding upstream version 16.2. Signed-off-by: Daniel Baumann --- src/backend/access/rmgrdesc/genericdesc.c | 56 +++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 src/backend/access/rmgrdesc/genericdesc.c (limited to 'src/backend/access/rmgrdesc/genericdesc.c') diff --git a/src/backend/access/rmgrdesc/genericdesc.c b/src/backend/access/rmgrdesc/genericdesc.c new file mode 100644 index 0000000..4ac589d --- /dev/null +++ b/src/backend/access/rmgrdesc/genericdesc.c @@ -0,0 +1,56 @@ +/*------------------------------------------------------------------------- + * + * genericdesc.c + * rmgr descriptor routines for access/transam/generic_xlog.c + * + * + * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/backend/access/rmgrdesc/genericdesc.c + * + *------------------------------------------------------------------------- + */ +#include "postgres.h" + +#include "access/generic_xlog.h" +#include "lib/stringinfo.h" +#include "storage/relfilelocator.h" + +/* + * Description of generic xlog record: write page regions that this record + * overrides. + */ +void +generic_desc(StringInfo buf, XLogReaderState *record) +{ + Pointer ptr = XLogRecGetData(record), + end = ptr + XLogRecGetDataLen(record); + + while (ptr < end) + { + OffsetNumber offset, + length; + + memcpy(&offset, ptr, sizeof(offset)); + ptr += sizeof(offset); + memcpy(&length, ptr, sizeof(length)); + ptr += sizeof(length); + ptr += length; + + if (ptr < end) + appendStringInfo(buf, "offset %u, length %u; ", offset, length); + else + appendStringInfo(buf, "offset %u, length %u", offset, length); + } +} + +/* + * Identification of generic xlog record: we don't distinguish any subtypes + * inside generic xlog records. + */ +const char * +generic_identify(uint8 info) +{ + return "Generic"; +} -- cgit v1.2.3