postgresql/src/bin/pg_waldump/rmgrdesc.c

100 lines
2.5 KiB
C

/*
* rmgrdesc.c
*
* pg_waldump resource managers definition
*
* src/bin/pg_waldump/rmgrdesc.c
*/
#define FRONTEND 1
#include "postgres.h"
#include "access/brin_xlog.h"
#include "access/clog.h"
#include "access/commit_ts.h"
#include "access/generic_xlog.h"
#include "access/ginxlog.h"
#include "access/gistxlog.h"
#include "access/hash_xlog.h"
#include "access/heapam_xlog.h"
#include "access/multixact.h"
#include "access/nbtxlog.h"
#include "access/rmgr.h"
#include "access/spgxlog.h"
#include "access/xact.h"
#include "access/xlog_internal.h"
#include "catalog/storage_xlog.h"
#include "commands/dbcommands_xlog.h"
#include "commands/sequence.h"
#include "commands/tablespace.h"
#include "replication/message.h"
#include "replication/origin.h"
#include "rmgrdesc.h"
#include "storage/standbydefs.h"
#include "utils/relmapper.h"
#define PG_RMGR(symname,name,redo,desc,identify,startup,cleanup,mask,decode) \
{ name, desc, identify},
static const RmgrDescData RmgrDescTable[RM_N_BUILTIN_IDS] = {
#include "access/rmgrlist.h"
};
#define CUSTOM_NUMERIC_NAME_LEN sizeof("custom###")
static char CustomNumericNames[RM_N_CUSTOM_IDS][CUSTOM_NUMERIC_NAME_LEN] = {{0}};
static RmgrDescData CustomRmgrDesc[RM_N_CUSTOM_IDS] = {{0}};
static bool CustomRmgrDescInitialized = false;
/*
* No information on custom resource managers; just print the ID.
*/
static void
default_desc(StringInfo buf, XLogReaderState *record)
{
appendStringInfo(buf, "rmid: %d", XLogRecGetRmid(record));
}
/*
* No information on custom resource managers; just return NULL and let the
* caller handle it.
*/
static const char *
default_identify(uint8 info)
{
return NULL;
}
/*
* We are unable to get the real name of a custom rmgr because the module is
* not loaded. Generate a table of rmgrs with numeric names of the form
* "custom###", where "###" is the 3-digit resource manager ID.
*/
static void
initialize_custom_rmgrs(void)
{
for (int i = 0; i < RM_N_CUSTOM_IDS; i++)
{
snprintf(CustomNumericNames[i], CUSTOM_NUMERIC_NAME_LEN,
"custom%03d", i + RM_MIN_CUSTOM_ID);
CustomRmgrDesc[i].rm_name = CustomNumericNames[i];
CustomRmgrDesc[i].rm_desc = default_desc;
CustomRmgrDesc[i].rm_identify = default_identify;
}
CustomRmgrDescInitialized = true;
}
const RmgrDescData *
GetRmgrDesc(RmgrId rmid)
{
Assert(RmgrIdIsValid(rmid));
if (RmgrIdIsBuiltin(rmid))
return &RmgrDescTable[rmid];
else
{
if (!CustomRmgrDescInitialized)
initialize_custom_rmgrs();
return &CustomRmgrDesc[rmid - RM_MIN_CUSTOM_ID];
}
}