1/*-------------------------------------------------------------------------
2 *
3 * smgrdesc.c
4 * rmgr descriptor routines for catalog/storage.c
5 *
6 * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
7 * Portions Copyright (c) 1994, Regents of the University of California
8 *
9 *
10 * IDENTIFICATION
11 * src/backend/access/rmgrdesc/smgrdesc.c
12 *
13 *-------------------------------------------------------------------------
14 */
15#include "postgres.h"
16
17#include "catalog/storage_xlog.h"
18
19
20void
21smgr_desc(StringInfo buf, XLogReaderState *record)
22{
23 char *rec = XLogRecGetData(record);
24 uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
25
26 if (info == XLOG_SMGR_CREATE)
27 {
28 xl_smgr_create *xlrec = (xl_smgr_create *) rec;
29 char *path = relpathperm(xlrec->rnode, xlrec->forkNum);
30
31 appendStringInfoString(buf, path);
32 pfree(path);
33 }
34 else if (info == XLOG_SMGR_TRUNCATE)
35 {
36 xl_smgr_truncate *xlrec = (xl_smgr_truncate *) rec;
37 char *path = relpathperm(xlrec->rnode, MAIN_FORKNUM);
38
39 appendStringInfo(buf, "%s to %u blocks flags %d", path,
40 xlrec->blkno, xlrec->flags);
41 pfree(path);
42 }
43}
44
45const char *
46smgr_identify(uint8 info)
47{
48 const char *id = NULL;
49
50 switch (info & ~XLR_INFO_MASK)
51 {
52 case XLOG_SMGR_CREATE:
53 id = "CREATE";
54 break;
55 case XLOG_SMGR_TRUNCATE:
56 id = "TRUNCATE";
57 break;
58 }
59
60 return id;
61}
62