Age         Owner                  TLA  Line data    Source code

                                  1                 : /*-------------------------------------------------------------------------
                                  2                 :  *
                                  3                 :  * committsdesc.c
                                  4                 :  *    rmgr descriptor routines for access/transam/commit_ts.c
                                  5                 :  *
                                  6                 :  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
                                  7                 :  * Portions Copyright (c) 1994, Regents of the University of California
                                  8                 :  *
                                  9                 :  *
                                 10                 :  * IDENTIFICATION
                                 11                 :  *    src/backend/access/rmgrdesc/committsdesc.c
                                 12                 :  *
                                 13                 :  *-------------------------------------------------------------------------
                                 14                 :  */
                                 15                 : #include "postgres.h"
                                 16                 : 
                                 17                 : #include "access/commit_ts.h"
                                 18                 : #include "utils/timestamp.h"
                                 19                 : 
                                 20                 : 
                                 21                 : void
 3049 alvherre                   22 UBC           0 : commit_ts_desc(StringInfo buf, XLogReaderState *record)
                                 23                 : {
                                 24               0 :     char       *rec = XLogRecGetData(record);
                                 25               0 :     uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
                                 26                 : 
                                 27               0 :     if (info == COMMIT_TS_ZEROPAGE)
                                 28                 :     {
                                 29                 :         int         pageno;
                                 30                 : 
                                 31               0 :         memcpy(&pageno, rec, sizeof(int));
                                 32               0 :         appendStringInfo(buf, "%d", pageno);
                                 33                 :     }
                                 34               0 :     else if (info == COMMIT_TS_TRUNCATE)
                                 35                 :     {
 2271                            36               0 :         xl_commit_ts_truncate *trunc = (xl_commit_ts_truncate *) rec;
                                 37                 : 
                                 38               0 :         appendStringInfo(buf, "pageno %d, oldestXid %u",
                                 39                 :                          trunc->pageno, trunc->oldestXid);
                                 40                 :     }
 3049                            41               0 : }
                                 42                 : 
                                 43                 : const char *
                                 44               0 : commit_ts_identify(uint8 info)
                                 45                 : {
                                 46               0 :     switch (info)
                                 47                 :     {
                                 48               0 :         case COMMIT_TS_ZEROPAGE:
                                 49               0 :             return "ZEROPAGE";
                                 50               0 :         case COMMIT_TS_TRUNCATE:
                                 51               0 :             return "TRUNCATE";
                                 52               0 :         default:
                                 53               0 :             return NULL;
                                 54                 :     }
                                 55                 : }