smgrdesc.c File Reference

#include "postgres.h"
#include "catalog/storage_xlog.h"

Include dependency graph for smgrdesc.c:

Go to the source code of this file.

Functions
void	smgr_desc (StringInfo buf, XLogReaderState *record)
const char *	smgr_identify (uint8 info)

Function Documentation

smgr_desc()

void smgr_desc	(	StringInfo	buf,
		XLogReaderState *	record
	)

Definition at line 21 of file smgrdesc.c.

{
    char       *rec = XLogRecGetData(record);
    uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
 
    if (info == XLOG_SMGR_CREATE)
    {
        xl_smgr_create *xlrec = (xl_smgr_create *) rec;
        char       *path = relpathperm(xlrec->rlocator, xlrec->forkNum);
 
        appendStringInfoString(buf, path);
        pfree(path);
    }
    else if (info == XLOG_SMGR_TRUNCATE)
    {
        xl_smgr_truncate *xlrec = (xl_smgr_truncate *) rec;
        char       *path = relpathperm(xlrec->rlocator, MAIN_FORKNUM);
 
        appendStringInfo(buf, "%s to %u blocks flags %d", path,
                         xlrec->blkno, xlrec->flags);
        pfree(path);
    }
}

References appendStringInfo(), appendStringInfoString(), xl_smgr_truncate::blkno, buf, xl_smgr_truncate::flags, xl_smgr_create::forkNum, MAIN_FORKNUM, pfree(), relpathperm, xl_smgr_create::rlocator, xl_smgr_truncate::rlocator, XLOG_SMGR_CREATE, XLOG_SMGR_TRUNCATE, XLogRecGetData, XLogRecGetInfo, and XLR_INFO_MASK.

smgr_identify()

const char* smgr_identify

(

uint8

info

)

Definition at line 46 of file smgrdesc.c.

{
    const char *id = NULL;
 
    switch (info & ~XLR_INFO_MASK)
    {
        case XLOG_SMGR_CREATE:
            id = "CREATE";
            break;
        case XLOG_SMGR_TRUNCATE:
            id = "TRUNCATE";
            break;
    }
 
    return id;
}

References XLOG_SMGR_CREATE, XLOG_SMGR_TRUNCATE, and XLR_INFO_MASK.