* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/gin/gininsert.c,v 1.16 2008/11/13 17:42:09 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/gin/gininsert.c,v 1.17 2008/11/19 10:34:50 heikki Exp $
*-------------------------------------------------------------------------
*/
elog(ERROR, "index \"%s\" already contains data",
RelationGetRelationName(index));
- /* Initialize FSM */
- InitIndexFreeSpaceMap(index);
-
initGinState(&buildstate.ginstate, index);
/* initialize the root page */
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/gin/ginvacuum.c,v 1.25 2008/11/03 20:47:48 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/gin/ginvacuum.c,v 1.26 2008/11/19 10:34:50 heikki Exp $
*-------------------------------------------------------------------------
*/
#include "access/genam.h"
#include "access/gin.h"
+#include "catalog/storage.h"
#include "commands/vacuum.h"
#include "miscadmin.h"
#include "storage/bufmgr.h"
if (info->vacuum_full && lastBlock > lastFilledBlock)
{
/* try to truncate index */
- FreeSpaceMapTruncateRel(index, lastFilledBlock + 1);
RelationTruncate(index, lastFilledBlock + 1);
stats->pages_removed = lastBlock - lastFilledBlock;
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.154 2008/11/13 17:42:09 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.155 2008/11/19 10:34:50 heikki Exp $
*
*-------------------------------------------------------------------------
*/
elog(ERROR, "index \"%s\" already contains data",
RelationGetRelationName(index));
- /* Initialize FSM */
- InitIndexFreeSpaceMap(index);
-
/* no locking is needed */
initGISTstate(&buildstate.giststate, index);
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/gist/gistvacuum.c,v 1.40 2008/11/03 20:47:48 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/gist/gistvacuum.c,v 1.41 2008/11/19 10:34:50 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "access/genam.h"
#include "access/gist_private.h"
+#include "catalog/storage.h"
#include "commands/vacuum.h"
#include "miscadmin.h"
#include "storage/bufmgr.h"
if (info->vacuum_full && lastFilledBlock < lastBlock)
{ /* try to truncate index */
- FreeSpaceMapTruncateRel(rel, lastFilledBlock + 1);
RelationTruncate(rel, lastFilledBlock + 1);
stats->std.pages_removed = lastBlock - lastFilledBlock;
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.269 2008/11/06 20:51:14 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.270 2008/11/19 10:34:50 heikki Exp $
*
*
* INTERFACE ROUTINES
/* FlushRelationBuffers will have opened rd_smgr */
smgrimmedsync(rel->rd_smgr, MAIN_FORKNUM);
- /* sync FSM as well */
- smgrimmedsync(rel->rd_smgr, FSM_FORKNUM);
+ /* FSM is not critical, don't bother syncing it */
/* toast heap, if any */
if (OidIsValid(rel->rd_rel->reltoastrelid))
toastrel = heap_open(rel->rd_rel->reltoastrelid, AccessShareLock);
FlushRelationBuffers(toastrel);
smgrimmedsync(toastrel->rd_smgr, MAIN_FORKNUM);
- smgrimmedsync(toastrel->rd_smgr, FSM_FORKNUM);
heap_close(toastrel, AccessShareLock);
}
}
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/nbtree/nbtree.c,v 1.165 2008/11/13 17:42:10 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/nbtree/nbtree.c,v 1.166 2008/11/19 10:34:50 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "access/nbtree.h"
#include "access/relscan.h"
#include "catalog/index.h"
+#include "catalog/storage.h"
#include "commands/vacuum.h"
#include "miscadmin.h"
#include "storage/bufmgr.h"
elog(ERROR, "index \"%s\" already contains data",
RelationGetRelationName(index));
- /* Initialize FSM */
- InitIndexFreeSpaceMap(index);
-
buildstate.spool = _bt_spoolinit(index, indexInfo->ii_Unique, false);
/*
/*
* Okay to truncate.
*/
- FreeSpaceMapTruncateRel(rel, new_pages);
RelationTruncate(rel, new_pages);
/* update statistics */
*
* Resource managers definition
*
- * $PostgreSQL: pgsql/src/backend/access/transam/rmgr.c,v 1.26 2008/09/30 10:52:11 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/rmgr.c,v 1.27 2008/11/19 10:34:50 heikki Exp $
*/
#include "postgres.h"
#include "access/nbtree.h"
#include "access/xact.h"
#include "access/xlog_internal.h"
+#include "catalog/storage.h"
#include "commands/dbcommands.h"
#include "commands/sequence.h"
#include "commands/tablespace.h"
#include "storage/freespace.h"
-#include "storage/smgr.h"
const RmgrData RmgrTable[RM_MAX_ID + 1] = {
{"Database", dbase_redo, dbase_desc, NULL, NULL, NULL},
{"Tablespace", tblspc_redo, tblspc_desc, NULL, NULL, NULL},
{"MultiXact", multixact_redo, multixact_desc, NULL, NULL, NULL},
- {"FreeSpaceMap", fsm_redo, fsm_desc, NULL, NULL, NULL},
+ {"Reserved 7", NULL, NULL, NULL, NULL, NULL},
{"Reserved 8", NULL, NULL, NULL, NULL, NULL},
{"Heap2", heap2_redo, heap2_desc, NULL, NULL, NULL},
{"Heap", heap_redo, heap_desc, NULL, NULL, NULL},
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/transam/twophase.c,v 1.47 2008/11/02 21:24:51 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/twophase.c,v 1.48 2008/11/19 10:34:50 heikki Exp $
*
* NOTES
* Each global transaction is associated with a global transaction
#include "access/twophase.h"
#include "access/twophase_rmgr.h"
#include "access/xact.h"
+#include "access/xlogutils.h"
#include "catalog/pg_type.h"
+#include "catalog/storage.h"
#include "funcapi.h"
#include "miscadmin.h"
#include "pg_trace.h"
int nchildren,
TransactionId *children,
int nrels,
- RelFileFork *rels);
+ RelFileNode *rels);
static void RecordTransactionAbortPrepared(TransactionId xid,
int nchildren,
TransactionId *children,
int nrels,
- RelFileFork *rels);
+ RelFileNode *rels);
static void ProcessRecords(char *bufptr, TransactionId xid,
const TwoPhaseCallback callbacks[]);
*
* 1. TwoPhaseFileHeader
* 2. TransactionId[] (subtransactions)
- * 3. RelFileFork[] (files to be deleted at commit)
- * 4. RelFileFork[] (files to be deleted at abort)
+ * 3. RelFileNode[] (files to be deleted at commit)
+ * 4. RelFileNode[] (files to be deleted at abort)
* 5. TwoPhaseRecordOnDisk
* 6. ...
* 7. TwoPhaseRecordOnDisk (end sentinel, rmid == TWOPHASE_RM_END_ID)
TransactionId xid = gxact->proc.xid;
TwoPhaseFileHeader hdr;
TransactionId *children;
- RelFileFork *commitrels;
- RelFileFork *abortrels;
+ RelFileNode *commitrels;
+ RelFileNode *abortrels;
/* Initialize linked list */
records.head = palloc0(sizeof(XLogRecData));
}
if (hdr.ncommitrels > 0)
{
- save_state_data(commitrels, hdr.ncommitrels * sizeof(RelFileFork));
+ save_state_data(commitrels, hdr.ncommitrels * sizeof(RelFileNode));
pfree(commitrels);
}
if (hdr.nabortrels > 0)
{
- save_state_data(abortrels, hdr.nabortrels * sizeof(RelFileFork));
+ save_state_data(abortrels, hdr.nabortrels * sizeof(RelFileNode));
pfree(abortrels);
}
}
TwoPhaseFileHeader *hdr;
TransactionId latestXid;
TransactionId *children;
- RelFileFork *commitrels;
- RelFileFork *abortrels;
+ RelFileNode *commitrels;
+ RelFileNode *abortrels;
+ RelFileNode *delrels;
+ int ndelrels;
int i;
/*
bufptr = buf + MAXALIGN(sizeof(TwoPhaseFileHeader));
children = (TransactionId *) bufptr;
bufptr += MAXALIGN(hdr->nsubxacts * sizeof(TransactionId));
- commitrels = (RelFileFork *) bufptr;
- bufptr += MAXALIGN(hdr->ncommitrels * sizeof(RelFileFork));
- abortrels = (RelFileFork *) bufptr;
- bufptr += MAXALIGN(hdr->nabortrels * sizeof(RelFileFork));
+ commitrels = (RelFileNode *) bufptr;
+ bufptr += MAXALIGN(hdr->ncommitrels * sizeof(RelFileNode));
+ abortrels = (RelFileNode *) bufptr;
+ bufptr += MAXALIGN(hdr->nabortrels * sizeof(RelFileNode));
/* compute latestXid among all children */
latestXid = TransactionIdLatest(xid, hdr->nsubxacts, children);
*/
if (isCommit)
{
- for (i = 0; i < hdr->ncommitrels; i++)
- {
- SMgrRelation srel = smgropen(commitrels[i].rnode);
- smgrdounlink(srel, commitrels[i].forknum, false, false);
- smgrclose(srel);
- }
+ delrels = commitrels;
+ ndelrels = hdr->ncommitrels;
}
else
{
- for (i = 0; i < hdr->nabortrels; i++)
+ delrels = abortrels;
+ ndelrels = hdr->nabortrels;
+ }
+ for (i = 0; i < ndelrels; i++)
+ {
+ SMgrRelation srel = smgropen(delrels[i]);
+ ForkNumber fork;
+
+ for (fork = 0; fork <= MAX_FORKNUM; fork++)
{
- SMgrRelation srel = smgropen(abortrels[i].rnode);
- smgrdounlink(srel, abortrels[i].forknum, false, false);
- smgrclose(srel);
+ if (smgrexists(srel, fork))
+ {
+ XLogDropRelation(delrels[i], fork);
+ smgrdounlink(srel, fork, false, true);
+ }
}
+ smgrclose(srel);
}
/* And now do the callbacks */
bufptr = buf + MAXALIGN(sizeof(TwoPhaseFileHeader));
subxids = (TransactionId *) bufptr;
bufptr += MAXALIGN(hdr->nsubxacts * sizeof(TransactionId));
- bufptr += MAXALIGN(hdr->ncommitrels * sizeof(RelFileFork));
- bufptr += MAXALIGN(hdr->nabortrels * sizeof(RelFileFork));
+ bufptr += MAXALIGN(hdr->ncommitrels * sizeof(RelFileNode));
+ bufptr += MAXALIGN(hdr->nabortrels * sizeof(RelFileNode));
/*
* Reconstruct subtrans state for the transaction --- needed
int nchildren,
TransactionId *children,
int nrels,
- RelFileFork *rels)
+ RelFileNode *rels)
{
XLogRecData rdata[3];
int lastrdata = 0;
{
rdata[0].next = &(rdata[1]);
rdata[1].data = (char *) rels;
- rdata[1].len = nrels * sizeof(RelFileFork);
+ rdata[1].len = nrels * sizeof(RelFileNode);
rdata[1].buffer = InvalidBuffer;
lastrdata = 1;
}
int nchildren,
TransactionId *children,
int nrels,
- RelFileFork *rels)
+ RelFileNode *rels)
{
XLogRecData rdata[3];
int lastrdata = 0;
{
rdata[0].next = &(rdata[1]);
rdata[1].data = (char *) rels;
- rdata[1].len = nrels * sizeof(RelFileFork);
+ rdata[1].len = nrels * sizeof(RelFileNode);
rdata[1].buffer = InvalidBuffer;
lastrdata = 1;
}
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.268 2008/11/11 14:17:01 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.269 2008/11/19 10:34:50 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "access/xlogutils.h"
#include "catalog/catalog.h"
#include "catalog/namespace.h"
+#include "catalog/storage.h"
#include "commands/async.h"
#include "commands/tablecmds.h"
#include "commands/trigger.h"
bool markXidCommitted = TransactionIdIsValid(xid);
TransactionId latestXid = InvalidTransactionId;
int nrels;
- RelFileFork *rels;
+ RelFileNode *rels;
bool haveNonTemp;
int nchildren;
TransactionId *children;
{
rdata[0].next = &(rdata[1]);
rdata[1].data = (char *) rels;
- rdata[1].len = nrels * sizeof(RelFileFork);
+ rdata[1].len = nrels * sizeof(RelFileNode);
rdata[1].buffer = InvalidBuffer;
lastrdata = 1;
}
TransactionId xid = GetCurrentTransactionIdIfAny();
TransactionId latestXid;
int nrels;
- RelFileFork *rels;
+ RelFileNode *rels;
int nchildren;
TransactionId *children;
XLogRecData rdata[3];
{
rdata[0].next = &(rdata[1]);
rdata[1].data = (char *) rels;
- rdata[1].len = nrels * sizeof(RelFileFork);
+ rdata[1].len = nrels * sizeof(RelFileNode);
rdata[1].buffer = InvalidBuffer;
lastrdata = 1;
}
AtEOXact_xml();
AtEOXact_on_commit_actions(false);
AtEOXact_Namespace(false);
- smgrabort();
AtEOXact_Files();
AtEOXact_ComboCid();
AtEOXact_HashTables(false);
/* Make sure files supposed to be dropped are dropped */
for (i = 0; i < xlrec->nrels; i++)
{
- SMgrRelation srel;
+ SMgrRelation srel = smgropen(xlrec->xnodes[i]);
+ ForkNumber fork;
- XLogDropRelation(xlrec->xnodes[i].rnode, xlrec->xnodes[i].forknum);
-
- srel = smgropen(xlrec->xnodes[i].rnode);
- smgrdounlink(srel, xlrec->xnodes[i].forknum, false, true);
+ for (fork = 0; fork <= MAX_FORKNUM; fork++)
+ {
+ if (smgrexists(srel, fork))
+ {
+ XLogDropRelation(xlrec->xnodes[i], fork);
+ smgrdounlink(srel, fork, false, true);
+ }
+ }
smgrclose(srel);
}
}
/* Make sure files supposed to be dropped are dropped */
for (i = 0; i < xlrec->nrels; i++)
{
- SMgrRelation srel;
+ SMgrRelation srel = smgropen(xlrec->xnodes[i]);
+ ForkNumber fork;
- XLogDropRelation(xlrec->xnodes[i].rnode, xlrec->xnodes[i].forknum);
-
- srel = smgropen(xlrec->xnodes[i].rnode);
- smgrdounlink(srel, xlrec->xnodes[i].forknum, false, true);
+ for (fork = 0; fork <= MAX_FORKNUM; fork++)
+ {
+ if (smgrexists(srel, fork))
+ {
+ XLogDropRelation(xlrec->xnodes[i], fork);
+ smgrdounlink(srel, fork, false, true);
+ }
+ }
smgrclose(srel);
}
}
appendStringInfo(buf, "; rels:");
for (i = 0; i < xlrec->nrels; i++)
{
- char *path = relpath(xlrec->xnodes[i].rnode,
- xlrec->xnodes[i].forknum);
+ char *path = relpath(xlrec->xnodes[i], MAIN_FORKNUM);
appendStringInfo(buf, " %s", path);
pfree(path);
}
appendStringInfo(buf, "; rels:");
for (i = 0; i < xlrec->nrels; i++)
{
- char *path = relpath(xlrec->xnodes[i].rnode,
- xlrec->xnodes[i].forknum);
+ char *path = relpath(xlrec->xnodes[i], MAIN_FORKNUM);
appendStringInfo(buf, " %s", path);
pfree(path);
}
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/backend/access/transam/xlogutils.c,v 1.62 2008/11/11 13:19:16 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlogutils.c,v 1.63 2008/11/19 10:34:50 heikki Exp $
*
*-------------------------------------------------------------------------
*/
* filesystem loses an inode during a crash. Better to write the data
* until we are actually told to delete the file.)
*/
- smgrcreate(smgr, forknum, false, true);
+ smgrcreate(smgr, forknum, true);
lastblock = smgrnblocks(smgr, forknum);
#
# Makefile for backend/catalog
#
-# $PostgreSQL: pgsql/src/backend/catalog/Makefile,v 1.66 2008/02/19 10:30:07 petere Exp $
+# $PostgreSQL: pgsql/src/backend/catalog/Makefile,v 1.67 2008/11/19 10:34:51 heikki Exp $
#
#-------------------------------------------------------------------------
OBJS = catalog.o dependency.o heap.o index.o indexing.o namespace.o aclchk.o \
pg_aggregate.o pg_constraint.o pg_conversion.o pg_depend.o pg_enum.o \
pg_largeobject.o pg_namespace.o pg_operator.o pg_proc.o pg_shdepend.o \
- pg_type.o toasting.o
+ pg_type.o storage.o toasting.o
BKIFILES = postgres.bki postgres.description postgres.shdescription
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.344 2008/11/14 01:57:41 alvherre Exp $
+ * $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.345 2008/11/19 10:34:51 heikki Exp $
*
*
* INTERFACE ROUTINES
#include "catalog/pg_tablespace.h"
#include "catalog/pg_type.h"
#include "catalog/pg_type_fn.h"
+#include "catalog/storage.h"
#include "commands/tablecmds.h"
#include "commands/typecmds.h"
#include "miscadmin.h"
/*
* Have the storage manager create the relation's disk file, if needed.
*
- * We create storage for the main fork here, and also for the FSM for a
- * heap or toast relation. The caller is responsible for creating any
- * additional forks if needed.
+ * We only create the main fork here, other forks will be created on
+ * demand.
*/
if (create_storage)
{
- Assert(rel->rd_smgr == NULL);
RelationOpenSmgr(rel);
- smgrcreate(rel->rd_smgr, MAIN_FORKNUM, rel->rd_istemp, false);
-
- /*
- * For a real heap, create FSM fork as well. Indexams are
- * responsible for creating any extra forks themselves.
- */
- if (relkind == RELKIND_RELATION || relkind == RELKIND_TOASTVALUE)
- smgrcreate(rel->rd_smgr, FSM_FORKNUM, rel->rd_istemp, false);
+ RelationCreateStorage(rel->rd_node, rel->rd_istemp);
}
return rel;
if (rel->rd_rel->relkind != RELKIND_VIEW &&
rel->rd_rel->relkind != RELKIND_COMPOSITE_TYPE)
{
- ForkNumber forknum;
-
- RelationOpenSmgr(rel);
- for (forknum = 0; forknum <= MAX_FORKNUM; forknum++)
- if (smgrexists(rel->rd_smgr, forknum))
- smgrscheduleunlink(rel->rd_smgr, forknum, rel->rd_istemp);
- RelationCloseSmgr(rel);
+ RelationDropStorage(rel);
}
/*
Relation rel = lfirst(cell);
/* Truncate the FSM and actual file (and discard buffers) */
- FreeSpaceMapTruncateRel(rel, 0);
RelationTruncate(rel, 0);
/* If this relation has indexes, truncate the indexes too */
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/catalog/index.c,v 1.309 2008/11/14 01:57:41 alvherre Exp $
+ * $PostgreSQL: pgsql/src/backend/catalog/index.c,v 1.310 2008/11/19 10:34:51 heikki Exp $
*
*
* INTERFACE ROUTINES
#include "catalog/pg_opclass.h"
#include "catalog/pg_tablespace.h"
#include "catalog/pg_type.h"
+#include "catalog/storage.h"
#include "commands/tablecmds.h"
#include "executor/executor.h"
#include "miscadmin.h"
Relation indexRelation;
HeapTuple tuple;
bool hasexprs;
- ForkNumber forknum;
/*
* To drop an index safely, we must grab exclusive lock on its parent
/*
* Schedule physical removal of the files
*/
- RelationOpenSmgr(userIndexRelation);
- for (forknum = 0; forknum <= MAX_FORKNUM; forknum++)
- if (smgrexists(userIndexRelation->rd_smgr, forknum))
- smgrscheduleunlink(userIndexRelation->rd_smgr, forknum,
- userIndexRelation->rd_istemp);
- RelationCloseSmgr(userIndexRelation);
+ RelationDropStorage(userIndexRelation);
/*
* Close and flush the index's relcache entry, to ensure relcache doesn't
{
Oid newrelfilenode;
RelFileNode newrnode;
- SMgrRelation srel;
Relation pg_class;
HeapTuple tuple;
Form_pg_class rd_rel;
- ForkNumber i;
/* Can't change relfilenode for nailed tables (indexes ok though) */
Assert(!relation->rd_isnailed ||
RelationGetRelid(relation));
rd_rel = (Form_pg_class) GETSTRUCT(tuple);
- RelationOpenSmgr(relation);
-
/*
* ... and create storage for corresponding forks in the new relfilenode.
*
*/
newrnode = relation->rd_node;
newrnode.relNode = newrelfilenode;
- srel = smgropen(newrnode);
-
- /* Create the main fork, like heap_create() does */
- smgrcreate(srel, MAIN_FORKNUM, relation->rd_istemp, false);
/*
- * For a heap, create FSM fork as well. Indexams are responsible for
- * creating any extra forks themselves.
+ * Create the main fork, like heap_create() does, and drop the old
+ * storage.
*/
- if (relation->rd_rel->relkind == RELKIND_RELATION ||
- relation->rd_rel->relkind == RELKIND_TOASTVALUE)
- smgrcreate(srel, FSM_FORKNUM, relation->rd_istemp, false);
-
- /* schedule unlinking old files */
- for (i = 0; i <= MAX_FORKNUM; i++)
- {
- if (smgrexists(relation->rd_smgr, i))
- smgrscheduleunlink(relation->rd_smgr, i, relation->rd_istemp);
- }
-
- smgrclose(srel);
- RelationCloseSmgr(relation);
+ RelationCreateStorage(newrnode, relation->rd_istemp);
+ smgrclosenode(newrnode);
+ RelationDropStorage(relation);
/* update the pg_class row */
rd_rel->relfilenode = newrelfilenode;
if (inplace)
{
/*
- * Truncate the actual file (and discard buffers). The indexam
- * is responsible for truncating the FSM, if applicable
+ * Truncate the actual file (and discard buffers).
*/
RelationTruncate(iRel, 0);
}
--- /dev/null
+/*-------------------------------------------------------------------------
+ *
+ * storage.c
+ * code to create and destroy physical storage for relations
+ *
+ * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ * $PostgreSQL: pgsql/src/backend/catalog/storage.c,v 1.1 2008/11/19 10:34:51 heikki Exp $
+ *
+ * NOTES
+ * Some of this code used to be in storage/smgr/smgr.c, and the
+ * function names still reflect that.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#include "postgres.h"
+
+#include "access/xact.h"
+#include "access/xlogutils.h"
+#include "catalog/catalog.h"
+#include "catalog/storage.h"
+#include "storage/freespace.h"
+#include "storage/smgr.h"
+#include "utils/memutils.h"
+#include "utils/rel.h"
+
+/*
+ * We keep a list of all relations (represented as RelFileNode values)
+ * that have been created or deleted in the current transaction. When
+ * a relation is created, we create the physical file immediately, but
+ * remember it so that we can delete the file again if the current
+ * transaction is aborted. Conversely, a deletion request is NOT
+ * executed immediately, but is just entered in the list. When and if
+ * the transaction commits, we can delete the physical file.
+ *
+ * To handle subtransactions, every entry is marked with its transaction
+ * nesting level. At subtransaction commit, we reassign the subtransaction's
+ * entries to the parent nesting level. At subtransaction abort, we can
+ * immediately execute the abort-time actions for all entries of the current
+ * nesting level.
+ *
+ * NOTE: the list is kept in TopMemoryContext to be sure it won't disappear
+ * unbetimes. It'd probably be OK to keep it in TopTransactionContext,
+ * but I'm being paranoid.
+ */
+
+typedef struct PendingRelDelete
+{
+ RelFileNode relnode; /* relation that may need to be deleted */
+ bool isTemp; /* is it a temporary relation? */
+ bool atCommit; /* T=delete at commit; F=delete at abort */
+ int nestLevel; /* xact nesting level of request */
+ struct PendingRelDelete *next; /* linked-list link */
+} PendingRelDelete;
+
+static PendingRelDelete *pendingDeletes = NULL; /* head of linked list */
+
+/*
+ * Declarations for smgr-related XLOG records
+ *
+ * Note: we log file creation and truncation here, but logging of deletion
+ * actions is handled by xact.c, because it is part of transaction commit.
+ */
+
+/* XLOG gives us high 4 bits */
+#define XLOG_SMGR_CREATE 0x10
+#define XLOG_SMGR_TRUNCATE 0x20
+
+typedef struct xl_smgr_create
+{
+ RelFileNode rnode;
+} xl_smgr_create;
+
+typedef struct xl_smgr_truncate
+{
+ BlockNumber blkno;
+ RelFileNode rnode;
+} xl_smgr_truncate;
+
+
+/*
+ * RelationCreateStorage
+ * Create physical storage for a relation.
+ *
+ * Create the underlying disk file storage for the relation. This only
+ * creates the main fork; additional forks are created lazily by the
+ * modules that need them.
+ *
+ * This function is transactional. The creation is WAL-logged, and if the
+ * transaction aborts later on, the storage will be destroyed.
+ */
+void
+RelationCreateStorage(RelFileNode rnode, bool istemp)
+{
+ PendingRelDelete *pending;
+ XLogRecPtr lsn;
+ XLogRecData rdata;
+ xl_smgr_create xlrec;
+ SMgrRelation srel;
+
+ srel = smgropen(rnode);
+ smgrcreate(srel, MAIN_FORKNUM, false);
+
+ if (istemp)
+ {
+ /*
+ * Make an XLOG entry showing the file creation. If we abort, the file
+ * will be dropped at abort time.
+ */
+ xlrec.rnode = rnode;
+
+ rdata.data = (char *) &xlrec;
+ rdata.len = sizeof(xlrec);
+ rdata.buffer = InvalidBuffer;
+ rdata.next = NULL;
+
+ lsn = XLogInsert(RM_SMGR_ID, XLOG_SMGR_CREATE, &rdata);
+ }
+
+ /* Add the relation to the list of stuff to delete at abort */
+ pending = (PendingRelDelete *)
+ MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
+ pending->relnode = rnode;
+ pending->isTemp = istemp;
+ pending->atCommit = false; /* delete if abort */
+ pending->nestLevel = GetCurrentTransactionNestLevel();
+ pending->next = pendingDeletes;
+ pendingDeletes = pending;
+}
+
+/*
+ * RelationDropStorage
+ * Schedule unlinking of physical storage at transaction commit.
+ */
+void
+RelationDropStorage(Relation rel)
+{
+ PendingRelDelete *pending;
+
+ /* Add the relation to the list of stuff to delete at commit */
+ pending = (PendingRelDelete *)
+ MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
+ pending->relnode = rel->rd_node;
+ pending->isTemp = rel->rd_istemp;
+ pending->atCommit = true; /* delete if commit */
+ pending->nestLevel = GetCurrentTransactionNestLevel();
+ pending->next = pendingDeletes;
+ pendingDeletes = pending;
+
+ /*
+ * NOTE: if the relation was created in this transaction, it will now be
+ * present in the pending-delete list twice, once with atCommit true and
+ * once with atCommit false. Hence, it will be physically deleted at end
+ * of xact in either case (and the other entry will be ignored by
+ * smgrDoPendingDeletes, so no error will occur). We could instead remove
+ * the existing list entry and delete the physical file immediately, but
+ * for now I'll keep the logic simple.
+ */
+
+ RelationCloseSmgr(rel);
+}
+
+/*
+ * RelationTruncate
+ * Physically truncate a relation to the specified number of blocks.
+ *
+ * This includes getting rid of any buffers for the blocks that are to be
+ * dropped. If 'fsm' is true, the FSM of the relation is truncated as well.
+ */
+void
+RelationTruncate(Relation rel, BlockNumber nblocks)
+{
+ bool fsm;
+
+ /* Open it at the smgr level if not already done */
+ RelationOpenSmgr(rel);
+
+ /* Make sure rd_targblock isn't pointing somewhere past end */
+ rel->rd_targblock = InvalidBlockNumber;
+
+ /* Truncate the FSM first if it exists */
+ fsm = smgrexists(rel->rd_smgr, FSM_FORKNUM);
+ if (fsm)
+ FreeSpaceMapTruncateRel(rel, nblocks);
+
+ /*
+ * We WAL-log the truncation before actually truncating, which
+ * means trouble if the truncation fails. If we then crash, the WAL
+ * replay likely isn't going to succeed in the truncation either, and
+ * cause a PANIC. It's tempting to put a critical section here, but
+ * that cure would be worse than the disease. It would turn a usually
+ * harmless failure to truncate, that could spell trouble at WAL replay,
+ * into a certain PANIC.
+ */
+ if (rel->rd_istemp)
+ {
+ /*
+ * Make an XLOG entry showing the file truncation.
+ */
+ XLogRecPtr lsn;
+ XLogRecData rdata;
+ xl_smgr_truncate xlrec;
+
+ xlrec.blkno = nblocks;
+ xlrec.rnode = rel->rd_node;
+
+ rdata.data = (char *) &xlrec;
+ rdata.len = sizeof(xlrec);
+ rdata.buffer = InvalidBuffer;
+ rdata.next = NULL;
+
+ lsn = XLogInsert(RM_SMGR_ID, XLOG_SMGR_TRUNCATE, &rdata);
+
+ /*
+ * Flush, because otherwise the truncation of the main relation
+ * might hit the disk before the WAL record of truncating the
+ * FSM is flushed. If we crashed during that window, we'd be
+ * left with a truncated heap, but the FSM would still contain
+ * entries for the non-existent heap pages.
+ */
+ if (fsm)
+ XLogFlush(lsn);
+ }
+
+ /* Do the real work */
+ smgrtruncate(rel->rd_smgr, MAIN_FORKNUM, nblocks, rel->rd_istemp);
+}
+
+/*
+ * smgrDoPendingDeletes() -- Take care of relation deletes at end of xact.
+ *
+ * This also runs when aborting a subxact; we want to clean up a failed
+ * subxact immediately.
+ */
+void
+smgrDoPendingDeletes(bool isCommit)
+{
+ int nestLevel = GetCurrentTransactionNestLevel();
+ PendingRelDelete *pending;
+ PendingRelDelete *prev;
+ PendingRelDelete *next;
+
+ prev = NULL;
+ for (pending = pendingDeletes; pending != NULL; pending = next)
+ {
+ next = pending->next;
+ if (pending->nestLevel < nestLevel)
+ {
+ /* outer-level entries should not be processed yet */
+ prev = pending;
+ }
+ else
+ {
+ /* unlink list entry first, so we don't retry on failure */
+ if (prev)
+ prev->next = next;
+ else
+ pendingDeletes = next;
+ /* do deletion if called for */
+ if (pending->atCommit == isCommit)
+ {
+ int i;
+
+ /* schedule unlinking old files */
+ SMgrRelation srel;
+
+ srel = smgropen(pending->relnode);
+ for (i = 0; i <= MAX_FORKNUM; i++)
+ {
+ if (smgrexists(srel, i))
+ smgrdounlink(srel,
+ i,
+ pending->isTemp,
+ false);
+ }
+ smgrclose(srel);
+ }
+ /* must explicitly free the list entry */
+ pfree(pending);
+ /* prev does not change */
+ }
+ }
+}
+
+/*
+ * smgrGetPendingDeletes() -- Get a list of relations to be deleted.
+ *
+ * The return value is the number of relations scheduled for termination.
+ * *ptr is set to point to a freshly-palloc'd array of RelFileNodes.
+ * If there are no relations to be deleted, *ptr is set to NULL.
+ *
+ * If haveNonTemp isn't NULL, the bool it points to gets set to true if
+ * there is any non-temp table pending to be deleted; false if not.
+ *
+ * Note that the list does not include anything scheduled for termination
+ * by upper-level transactions.
+ */
+int
+smgrGetPendingDeletes(bool forCommit, RelFileNode **ptr, bool *haveNonTemp)
+{
+ int nestLevel = GetCurrentTransactionNestLevel();
+ int nrels;
+ RelFileNode *rptr;
+ PendingRelDelete *pending;
+
+ nrels = 0;
+ if (haveNonTemp)
+ *haveNonTemp = false;
+ for (pending = pendingDeletes; pending != NULL; pending = pending->next)
+ {
+ if (pending->nestLevel >= nestLevel && pending->atCommit == forCommit)
+ nrels++;
+ }
+ if (nrels == 0)
+ {
+ *ptr = NULL;
+ return 0;
+ }
+ rptr = (RelFileNode *) palloc(nrels * sizeof(RelFileNode));
+ *ptr = rptr;
+ for (pending = pendingDeletes; pending != NULL; pending = pending->next)
+ {
+ if (pending->nestLevel >= nestLevel && pending->atCommit == forCommit)
+ {
+ *rptr = pending->relnode;
+ rptr++;
+ }
+ if (haveNonTemp && !pending->isTemp)
+ *haveNonTemp = true;
+ }
+ return nrels;
+}
+
+/*
+ * PostPrepare_smgr -- Clean up after a successful PREPARE
+ *
+ * What we have to do here is throw away the in-memory state about pending
+ * relation deletes. It's all been recorded in the 2PC state file and
+ * it's no longer smgr's job to worry about it.
+ */
+void
+PostPrepare_smgr(void)
+{
+ PendingRelDelete *pending;
+ PendingRelDelete *next;
+
+ for (pending = pendingDeletes; pending != NULL; pending = next)
+ {
+ next = pending->next;
+ pendingDeletes = next;
+ /* must explicitly free the list entry */
+ pfree(pending);
+ }
+}
+
+
+/*
+ * AtSubCommit_smgr() --- Take care of subtransaction commit.
+ *
+ * Reassign all items in the pending-deletes list to the parent transaction.
+ */
+void
+AtSubCommit_smgr(void)
+{
+ int nestLevel = GetCurrentTransactionNestLevel();
+ PendingRelDelete *pending;
+
+ for (pending = pendingDeletes; pending != NULL; pending = pending->next)
+ {
+ if (pending->nestLevel >= nestLevel)
+ pending->nestLevel = nestLevel - 1;
+ }
+}
+
+/*
+ * AtSubAbort_smgr() --- Take care of subtransaction abort.
+ *
+ * Delete created relations and forget about deleted relations.
+ * We can execute these operations immediately because we know this
+ * subtransaction will not commit.
+ */
+void
+AtSubAbort_smgr(void)
+{
+ smgrDoPendingDeletes(false);
+}
+
+void
+smgr_redo(XLogRecPtr lsn, XLogRecord *record)
+{
+ uint8 info = record->xl_info & ~XLR_INFO_MASK;
+
+ if (info == XLOG_SMGR_CREATE)
+ {
+ xl_smgr_create *xlrec = (xl_smgr_create *) XLogRecGetData(record);
+ SMgrRelation reln;
+
+ reln = smgropen(xlrec->rnode);
+ smgrcreate(reln, MAIN_FORKNUM, true);
+ }
+ else if (info == XLOG_SMGR_TRUNCATE)
+ {
+ xl_smgr_truncate *xlrec = (xl_smgr_truncate *) XLogRecGetData(record);
+ SMgrRelation reln;
+
+ reln = smgropen(xlrec->rnode);
+
+ /*
+ * Forcibly create relation if it doesn't exist (which suggests that
+ * it was dropped somewhere later in the WAL sequence). As in
+ * XLogOpenRelation, we prefer to recreate the rel and replay the log
+ * as best we can until the drop is seen.
+ */
+ smgrcreate(reln, MAIN_FORKNUM, true);
+
+ smgrtruncate(reln, MAIN_FORKNUM, xlrec->blkno, false);
+
+ /* Also tell xlogutils.c about it */
+ XLogTruncateRelation(xlrec->rnode, MAIN_FORKNUM, xlrec->blkno);
+
+ /* Truncate FSM too */
+ if (smgrexists(reln, FSM_FORKNUM))
+ {
+ Relation rel = CreateFakeRelcacheEntry(xlrec->rnode);
+ FreeSpaceMapTruncateRel(rel, xlrec->blkno);
+ FreeFakeRelcacheEntry(rel);
+ }
+
+ }
+ else
+ elog(PANIC, "smgr_redo: unknown op code %u", info);
+}
+
+void
+smgr_desc(StringInfo buf, uint8 xl_info, char *rec)
+{
+ uint8 info = xl_info & ~XLR_INFO_MASK;
+
+ if (info == XLOG_SMGR_CREATE)
+ {
+ xl_smgr_create *xlrec = (xl_smgr_create *) rec;
+ char *path = relpath(xlrec->rnode, MAIN_FORKNUM);
+
+ appendStringInfo(buf, "file create: %s", path);
+ pfree(path);
+ }
+ else if (info == XLOG_SMGR_TRUNCATE)
+ {
+ xl_smgr_truncate *xlrec = (xl_smgr_truncate *) rec;
+ char *path = relpath(xlrec->rnode, MAIN_FORKNUM);
+
+ appendStringInfo(buf, "file truncate: %s to %u blocks", path,
+ xlrec->blkno);
+ pfree(path);
+ }
+ else
+ appendStringInfo(buf, "UNKNOWN");
+}
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.270 2008/11/14 01:57:41 alvherre Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.271 2008/11/19 10:34:51 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "catalog/pg_trigger.h"
#include "catalog/pg_type.h"
#include "catalog/pg_type_fn.h"
+#include "catalog/storage.h"
#include "catalog/toasting.h"
#include "commands/cluster.h"
#include "commands/defrem.h"
* of old physical files.
*
* NOTE: any conflict in relfilenode value will be caught in
- * smgrcreate() below.
+ * RelationCreateStorage().
*/
- for (forkNum = 0; forkNum <= MAX_FORKNUM; forkNum++)
+ RelationCreateStorage(newrnode, rel->rd_istemp);
+
+ /* copy main fork */
+ copy_relation_data(rel->rd_smgr, dstrel, MAIN_FORKNUM, rel->rd_istemp);
+
+ /* copy those extra forks that exist */
+ for (forkNum = MAIN_FORKNUM + 1; forkNum <= MAX_FORKNUM; forkNum++)
{
if (smgrexists(rel->rd_smgr, forkNum))
{
- smgrcreate(dstrel, forkNum, rel->rd_istemp, false);
+ smgrcreate(dstrel, forkNum, false);
copy_relation_data(rel->rd_smgr, dstrel, forkNum, rel->rd_istemp);
-
- smgrscheduleunlink(rel->rd_smgr, forkNum, rel->rd_istemp);
}
}
- /* Close old and new relation */
+ /* drop old relation, and close new one */
+ RelationDropStorage(rel);
smgrclose(dstrel);
- RelationCloseSmgr(rel);
/* update the pg_class row */
rd_rel->reltablespace = (newTableSpace == MyDatabaseTableSpace) ? InvalidOid : newTableSpace;
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.380 2008/11/10 00:49:37 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.381 2008/11/19 10:34:51 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "catalog/namespace.h"
#include "catalog/pg_database.h"
#include "catalog/pg_namespace.h"
+#include "catalog/storage.h"
#include "commands/dbcommands.h"
#include "commands/vacuum.h"
#include "executor/executor.h"
/* Truncate relation, if needed */
if (blkno < nblocks)
{
- FreeSpaceMapTruncateRel(onerel, blkno);
RelationTruncate(onerel, blkno);
vacrelstats->rel_pages = blkno; /* set new number of blocks */
}
(errmsg("\"%s\": truncated %u to %u pages",
RelationGetRelationName(onerel),
vacrelstats->rel_pages, relblocks)));
- FreeSpaceMapTruncateRel(onerel, relblocks);
RelationTruncate(onerel, relblocks);
vacrelstats->rel_pages = relblocks; /* set new number of blocks */
}
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/vacuumlazy.c,v 1.110 2008/11/10 00:49:37 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/vacuumlazy.c,v 1.111 2008/11/19 10:34:51 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "access/genam.h"
#include "access/heapam.h"
#include "access/transam.h"
+#include "catalog/storage.h"
#include "commands/dbcommands.h"
#include "commands/vacuum.h"
#include "miscadmin.h"
/*
* Okay to truncate.
*/
- FreeSpaceMapTruncateRel(onerel, new_rel_pages);
RelationTruncate(onerel, new_rel_pages);
/*
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/rewrite/rewriteDefine.c,v 1.132 2008/11/09 21:24:32 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/rewrite/rewriteDefine.c,v 1.133 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "catalog/indexing.h"
#include "catalog/namespace.h"
#include "catalog/pg_rewrite.h"
+#include "catalog/storage.h"
#include "miscadmin.h"
#include "nodes/nodeFuncs.h"
#include "parser/parse_utilcmd.h"
#include "rewrite/rewriteDefine.h"
#include "rewrite/rewriteManip.h"
#include "rewrite/rewriteSupport.h"
-#include "storage/smgr.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/inval.h"
* XXX what about getting rid of its TOAST table? For now, we don't.
*/
if (RelisBecomingView)
- {
- ForkNumber forknum;
-
- RelationOpenSmgr(event_relation);
- for (forknum = 0; forknum <= MAX_FORKNUM; forknum++)
- if (smgrexists(event_relation->rd_smgr, forknum))
- smgrscheduleunlink(event_relation->rd_smgr, forknum,
- event_relation->rd_istemp);
- RelationCloseSmgr(event_relation);
- }
+ RelationDropStorage(event_relation);
/* Close rel, but keep lock till commit... */
heap_close(event_relation, NoLock);
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.241 2008/11/11 13:19:16 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.242 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
BufmgrCommit(void)
{
/* Nothing to do in bufmgr anymore... */
-
- smgrcommit();
}
/*
return smgrnblocks(relation->rd_smgr, MAIN_FORKNUM);
}
-/*
- * RelationTruncate
- * Physically truncate a relation to the specified number of blocks.
- *
- * As of Postgres 8.1, this includes getting rid of any buffers for the
- * blocks that are to be dropped; previously, callers had to do that.
- */
-void
-RelationTruncate(Relation rel, BlockNumber nblocks)
-{
- /* Open it at the smgr level if not already done */
- RelationOpenSmgr(rel);
-
- /* Make sure rd_targblock isn't pointing somewhere past end */
- rel->rd_targblock = InvalidBlockNumber;
-
- /* Do the real work */
- smgrtruncate(rel->rd_smgr, MAIN_FORKNUM, nblocks, rel->rd_istemp);
-}
-
/* ---------------------------------------------------------------------
* DropRelFileNodeBuffers
*
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.66 2008/10/31 19:40:27 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.67 2008/11/19 10:34:52 heikki Exp $
*
*
* NOTES:
* MaxFSMRequestSize depends on the architecture and BLCKSZ, but assuming
* default 8k BLCKSZ, and that MaxFSMRequestSize is 24 bytes, the categories
* look like this
- *
+ *
*
* Range Category
* 0 - 31 0
/* Address of the root page. */
static const FSMAddress FSM_ROOT_ADDRESS = { FSM_ROOT_LEVEL, 0 };
-/* XLOG record types */
-#define XLOG_FSM_TRUNCATE 0x00 /* truncate */
-
-typedef struct
-{
- RelFileNode node; /* truncated relation */
- BlockNumber nheapblocks; /* new number of blocks in the heap */
-} xl_fsm_truncate;
-
/* functions to navigate the tree */
static FSMAddress fsm_get_child(FSMAddress parent, uint16 slot);
static FSMAddress fsm_get_parent(FSMAddress child, uint16 *slot);
static BlockNumber fsm_logical_to_physical(FSMAddress addr);
static Buffer fsm_readbuf(Relation rel, FSMAddress addr, bool extend);
-static void fsm_extend(Relation rel, BlockNumber nfsmblocks);
+static void fsm_extend(Relation rel, BlockNumber nfsmblocks, bool createstorage);
/* functions to convert amount of free space to a FSM category */
static uint8 fsm_space_avail_to_cat(Size avail);
static BlockNumber fsm_search(Relation rel, uint8 min_cat);
static uint8 fsm_vacuum_page(Relation rel, FSMAddress addr, bool *eof);
-static void fsm_redo_truncate(xl_fsm_truncate *xlrec);
-
/******** Public API ********/
RelationOpenSmgr(rel);
+ /*
+ * If no FSM has been created yet for this relation, there's nothing to
+ * truncate.
+ */
+ if (!smgrexists(rel->rd_smgr, FSM_FORKNUM))
+ return;
+
/* Get the location in the FSM of the first removed heap block */
first_removed_address = fsm_get_location(nblocks, &first_removed_slot);
/* Truncate the unused FSM pages */
smgrtruncate(rel->rd_smgr, FSM_FORKNUM, new_nfsmblocks, rel->rd_istemp);
- /*
- * FSM truncations are WAL-logged, because we must never return a block
- * that doesn't exist in the heap, not even if we crash before the FSM
- * truncation has made it to disk. smgrtruncate() writes its own WAL
- * record, but that's not enough to zero out the last remaining FSM page.
- * (if we didn't need to zero out anything above, we can skip this)
- */
- if (!rel->rd_istemp && first_removed_slot != 0)
- {
- xl_fsm_truncate xlrec;
- XLogRecData rdata;
- XLogRecPtr recptr;
-
- xlrec.node = rel->rd_node;
- xlrec.nheapblocks = nblocks;
-
- rdata.data = (char *) &xlrec;
- rdata.len = sizeof(xl_fsm_truncate);
- rdata.buffer = InvalidBuffer;
- rdata.next = NULL;
-
- recptr = XLogInsert(RM_FREESPACE_ID, XLOG_FSM_TRUNCATE, &rdata);
-
- /*
- * Flush, because otherwise the truncation of the main relation
- * might hit the disk before the WAL record of truncating the
- * FSM is flushed. If we crashed during that window, we'd be
- * left with a truncated heap, without a truncated FSM.
- */
- XLogFlush(recptr);
- }
-
/*
* Need to invalidate the relcache entry, because rd_fsm_nblocks_cache
* seen by other backends is no longer valid.
*/
- CacheInvalidateRelcache(rel);
+ if (!InRecovery)
+ CacheInvalidateRelcache(rel);
rel->rd_fsm_nblocks_cache = new_nfsmblocks;
}
RelationOpenSmgr(rel);
- if (rel->rd_fsm_nblocks_cache == InvalidBlockNumber ||
+ if (rel->rd_fsm_nblocks_cache == InvalidBlockNumber ||
rel->rd_fsm_nblocks_cache <= blkno)
- rel->rd_fsm_nblocks_cache = smgrnblocks(rel->rd_smgr, FSM_FORKNUM);
+ {
+ if (!smgrexists(rel->rd_smgr, FSM_FORKNUM))
+ fsm_extend(rel, blkno + 1, true);
+ else
+ rel->rd_fsm_nblocks_cache = smgrnblocks(rel->rd_smgr, FSM_FORKNUM);
+ }
if (blkno >= rel->rd_fsm_nblocks_cache)
{
if (extend)
- fsm_extend(rel, blkno + 1);
+ fsm_extend(rel, blkno + 1, false);
else
return InvalidBuffer;
}
/*
* Ensure that the FSM fork is at least n_fsmblocks long, extending
* it if necessary with empty pages. And by empty, I mean pages filled
- * with zeros, meaning there's no free space.
+ * with zeros, meaning there's no free space. If createstorage is true,
+ * the FSM file might need to be created first.
*/
static void
-fsm_extend(Relation rel, BlockNumber n_fsmblocks)
+fsm_extend(Relation rel, BlockNumber n_fsmblocks, bool createstorage)
{
BlockNumber n_fsmblocks_now;
Page pg;
*/
LockRelationForExtension(rel, ExclusiveLock);
- n_fsmblocks_now = smgrnblocks(rel->rd_smgr, FSM_FORKNUM);
+ /* Create the FSM file first if it doesn't exist */
+ if (createstorage && !smgrexists(rel->rd_smgr, FSM_FORKNUM))
+ {
+ smgrcreate(rel->rd_smgr, FSM_FORKNUM, false);
+ n_fsmblocks_now = 0;
+ }
+ else
+ n_fsmblocks_now = smgrnblocks(rel->rd_smgr, FSM_FORKNUM);
+
while (n_fsmblocks_now < n_fsmblocks)
{
smgrextend(rel->rd_smgr, FSM_FORKNUM, n_fsmblocks_now,
return max_avail;
}
-
-
-/****** WAL-logging ******/
-
-static void
-fsm_redo_truncate(xl_fsm_truncate *xlrec)
-{
- FSMAddress first_removed_address;
- uint16 first_removed_slot;
- BlockNumber fsmblk;
- Buffer buf;
-
- /* Get the location in the FSM of the first removed heap block */
- first_removed_address = fsm_get_location(xlrec->nheapblocks,
- &first_removed_slot);
- fsmblk = fsm_logical_to_physical(first_removed_address);
-
- /*
- * Zero out the tail of the last remaining FSM page. We rely on the
- * replay of the smgr truncation record to remove completely unused
- * pages.
- */
- buf = XLogReadBufferExtended(xlrec->node, FSM_FORKNUM, fsmblk,
- RBM_ZERO_ON_ERROR);
- if (BufferIsValid(buf))
- {
- Page page = BufferGetPage(buf);
-
- if (PageIsNew(page))
- PageInit(page, BLCKSZ, 0);
- fsm_truncate_avail(page, first_removed_slot);
- MarkBufferDirty(buf);
- UnlockReleaseBuffer(buf);
- }
-}
-
-void
-fsm_redo(XLogRecPtr lsn, XLogRecord *record)
-{
- uint8 info = record->xl_info & ~XLR_INFO_MASK;
-
- switch (info)
- {
- case XLOG_FSM_TRUNCATE:
- fsm_redo_truncate((xl_fsm_truncate *) XLogRecGetData(record));
- break;
- default:
- elog(PANIC, "fsm_redo: unknown op code %u", info);
- }
-}
-
-void
-fsm_desc(StringInfo buf, uint8 xl_info, char *rec)
-{
- uint8 info = xl_info & ~XLR_INFO_MASK;
-
- switch (info)
- {
- case XLOG_FSM_TRUNCATE:
- {
- xl_fsm_truncate *xlrec = (xl_fsm_truncate *) rec;
-
- appendStringInfo(buf, "truncate: rel %u/%u/%u; nheapblocks %u;",
- xlrec->node.spcNode, xlrec->node.dbNode,
- xlrec->node.relNode, xlrec->nheapblocks);
- break;
- }
- default:
- appendStringInfo(buf, "UNKNOWN");
- break;
- }
-}
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/storage/freespace/indexfsm.c,v 1.2 2008/10/06 08:04:11 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/storage/freespace/indexfsm.c,v 1.3 2008/11/19 10:34:52 heikki Exp $
*
*
* NOTES:
* Exported routines
*/
-/*
- * InitIndexFreeSpaceMap - Create or reset the FSM fork for relation.
- */
-void
-InitIndexFreeSpaceMap(Relation rel)
-{
- /* Create FSM fork if it doesn't exist yet, or truncate it if it does */
- RelationOpenSmgr(rel);
- if (!smgrexists(rel->rd_smgr, FSM_FORKNUM))
- smgrcreate(rel->rd_smgr, FSM_FORKNUM, rel->rd_istemp, false);
- else
- smgrtruncate(rel->rd_smgr, FSM_FORKNUM, 0, rel->rd_istemp);
-}
-
/*
* GetFreeIndexPage - return a free page from the FSM
*
RecordPageWithFreeSpace(rel, usedBlock, 0);
}
-/*
- * IndexFreeSpaceMapTruncate - adjust for truncation of a relation.
- *
- * We need to delete any stored data past the new relation length, so that
- * we don't bogusly return removed block numbers.
- */
-void
-IndexFreeSpaceMapTruncate(Relation rel, BlockNumber nblocks)
-{
- FreeSpaceMapTruncateRel(rel, nblocks);
-}
-
/*
* IndexFreeSpaceMapVacuum - scan and fix any inconsistencies in the FSM
*/
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/storage/smgr/smgr.c,v 1.113 2008/11/11 13:19:16 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/storage/smgr/smgr.c,v 1.114 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
-#include "access/xact.h"
#include "access/xlogutils.h"
#include "catalog/catalog.h"
#include "commands/tablespace.h"
#include "storage/ipc.h"
#include "storage/smgr.h"
#include "utils/hsearch.h"
-#include "utils/memutils.h"
/*
void (*smgr_truncate) (SMgrRelation reln, ForkNumber forknum,
BlockNumber nblocks, bool isTemp);
void (*smgr_immedsync) (SMgrRelation reln, ForkNumber forknum);
- void (*smgr_commit) (void); /* may be NULL */
- void (*smgr_abort) (void); /* may be NULL */
void (*smgr_pre_ckpt) (void); /* may be NULL */
void (*smgr_sync) (void); /* may be NULL */
void (*smgr_post_ckpt) (void); /* may be NULL */
/* magnetic disk */
{mdinit, NULL, mdclose, mdcreate, mdexists, mdunlink, mdextend,
mdread, mdwrite, mdnblocks, mdtruncate, mdimmedsync,
- NULL, NULL, mdpreckpt, mdsync, mdpostckpt
+ mdpreckpt, mdsync, mdpostckpt
}
};
*/
static HTAB *SMgrRelationHash = NULL;
-/*
- * We keep a list of all relations (represented as RelFileNode values)
- * that have been created or deleted in the current transaction. When
- * a relation is created, we create the physical file immediately, but
- * remember it so that we can delete the file again if the current
- * transaction is aborted. Conversely, a deletion request is NOT
- * executed immediately, but is just entered in the list. When and if
- * the transaction commits, we can delete the physical file.
- *
- * To handle subtransactions, every entry is marked with its transaction
- * nesting level. At subtransaction commit, we reassign the subtransaction's
- * entries to the parent nesting level. At subtransaction abort, we can
- * immediately execute the abort-time actions for all entries of the current
- * nesting level.
- *
- * NOTE: the list is kept in TopMemoryContext to be sure it won't disappear
- * unbetimes. It'd probably be OK to keep it in TopTransactionContext,
- * but I'm being paranoid.
- */
-
-typedef struct PendingRelDelete
-{
- RelFileNode relnode; /* relation that may need to be deleted */
- ForkNumber forknum; /* fork number that may need to be deleted */
- int which; /* which storage manager? */
- bool isTemp; /* is it a temporary relation? */
- bool atCommit; /* T=delete at commit; F=delete at abort */
- int nestLevel; /* xact nesting level of request */
- struct PendingRelDelete *next; /* linked-list link */
-} PendingRelDelete;
-
-static PendingRelDelete *pendingDeletes = NULL; /* head of linked list */
-
-
-/*
- * Declarations for smgr-related XLOG records
- *
- * Note: we log file creation and truncation here, but logging of deletion
- * actions is handled by xact.c, because it is part of transaction commit.
- */
-
-/* XLOG gives us high 4 bits */
-#define XLOG_SMGR_CREATE 0x10
-#define XLOG_SMGR_TRUNCATE 0x20
-
-typedef struct xl_smgr_create
-{
- RelFileNode rnode;
- ForkNumber forknum;
-} xl_smgr_create;
-
-typedef struct xl_smgr_truncate
-{
- BlockNumber blkno;
- RelFileNode rnode;
- ForkNumber forknum;
-} xl_smgr_truncate;
-
-
/* local function prototypes */
static void smgrshutdown(int code, Datum arg);
static void smgr_internal_unlink(RelFileNode rnode, ForkNumber forknum,
* to be created.
*
* If isRedo is true, it is okay for the underlying file to exist
- * already because we are in a WAL replay sequence. In this case
- * we should make no PendingRelDelete entry; the WAL sequence will
- * tell whether to drop the file.
+ * already because we are in a WAL replay sequence.
*/
void
-smgrcreate(SMgrRelation reln, ForkNumber forknum, bool isTemp, bool isRedo)
+smgrcreate(SMgrRelation reln, ForkNumber forknum, bool isRedo)
{
- XLogRecPtr lsn;
- XLogRecData rdata;
- xl_smgr_create xlrec;
- PendingRelDelete *pending;
-
/*
* Exit quickly in WAL replay mode if we've already opened the file.
* If it's open, it surely must exist.
isRedo);
(*(smgrsw[reln->smgr_which].smgr_create)) (reln, forknum, isRedo);
-
- if (isRedo)
- return;
-
- /*
- * Make an XLOG entry showing the file creation. If we abort, the file
- * will be dropped at abort time.
- */
- xlrec.rnode = reln->smgr_rnode;
- xlrec.forknum = forknum;
-
- rdata.data = (char *) &xlrec;
- rdata.len = sizeof(xlrec);
- rdata.buffer = InvalidBuffer;
- rdata.next = NULL;
-
- lsn = XLogInsert(RM_SMGR_ID, XLOG_SMGR_CREATE, &rdata);
-
- /* Add the relation to the list of stuff to delete at abort */
- pending = (PendingRelDelete *)
- MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
- pending->relnode = reln->smgr_rnode;
- pending->forknum = forknum;
- pending->which = reln->smgr_which;
- pending->isTemp = isTemp;
- pending->atCommit = false; /* delete if abort */
- pending->nestLevel = GetCurrentTransactionNestLevel();
- pending->next = pendingDeletes;
- pendingDeletes = pending;
-}
-
-/*
- * smgrscheduleunlink() -- Schedule unlinking a relation at xact commit.
- *
- * The fork is marked to be removed from the store if we successfully
- * commit the current transaction.
- */
-void
-smgrscheduleunlink(SMgrRelation reln, ForkNumber forknum, bool isTemp)
-{
- PendingRelDelete *pending;
-
- /* Add the relation to the list of stuff to delete at commit */
- pending = (PendingRelDelete *)
- MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
- pending->relnode = reln->smgr_rnode;
- pending->forknum = forknum;
- pending->which = reln->smgr_which;
- pending->isTemp = isTemp;
- pending->atCommit = true; /* delete if commit */
- pending->nestLevel = GetCurrentTransactionNestLevel();
- pending->next = pendingDeletes;
- pendingDeletes = pending;
-
- /*
- * NOTE: if the relation was created in this transaction, it will now be
- * present in the pending-delete list twice, once with atCommit true and
- * once with atCommit false. Hence, it will be physically deleted at end
- * of xact in either case (and the other entry will be ignored by
- * smgrDoPendingDeletes, so no error will occur). We could instead remove
- * the existing list entry and delete the physical file immediately, but
- * for now I'll keep the logic simple.
- */
}
/*
/* Do the truncation */
(*(smgrsw[reln->smgr_which].smgr_truncate)) (reln, forknum, nblocks,
isTemp);
-
- if (!isTemp)
- {
- /*
- * Make an XLOG entry showing the file truncation.
- */
- XLogRecPtr lsn;
- XLogRecData rdata;
- xl_smgr_truncate xlrec;
-
- xlrec.blkno = nblocks;
- xlrec.rnode = reln->smgr_rnode;
- xlrec.forknum = forknum;
-
- rdata.data = (char *) &xlrec;
- rdata.len = sizeof(xlrec);
- rdata.buffer = InvalidBuffer;
- rdata.next = NULL;
-
- lsn = XLogInsert(RM_SMGR_ID, XLOG_SMGR_TRUNCATE, &rdata);
- }
}
/*
}
-/*
- * PostPrepare_smgr -- Clean up after a successful PREPARE
- *
- * What we have to do here is throw away the in-memory state about pending
- * relation deletes. It's all been recorded in the 2PC state file and
- * it's no longer smgr's job to worry about it.
- */
-void
-PostPrepare_smgr(void)
-{
- PendingRelDelete *pending;
- PendingRelDelete *next;
-
- for (pending = pendingDeletes; pending != NULL; pending = next)
- {
- next = pending->next;
- pendingDeletes = next;
- /* must explicitly free the list entry */
- pfree(pending);
- }
-}
-
-
-/*
- * smgrDoPendingDeletes() -- Take care of relation deletes at end of xact.
- *
- * This also runs when aborting a subxact; we want to clean up a failed
- * subxact immediately.
- */
-void
-smgrDoPendingDeletes(bool isCommit)
-{
- int nestLevel = GetCurrentTransactionNestLevel();
- PendingRelDelete *pending;
- PendingRelDelete *prev;
- PendingRelDelete *next;
-
- prev = NULL;
- for (pending = pendingDeletes; pending != NULL; pending = next)
- {
- next = pending->next;
- if (pending->nestLevel < nestLevel)
- {
- /* outer-level entries should not be processed yet */
- prev = pending;
- }
- else
- {
- /* unlink list entry first, so we don't retry on failure */
- if (prev)
- prev->next = next;
- else
- pendingDeletes = next;
- /* do deletion if called for */
- if (pending->atCommit == isCommit)
- smgr_internal_unlink(pending->relnode,
- pending->forknum,
- pending->which,
- pending->isTemp,
- false);
- /* must explicitly free the list entry */
- pfree(pending);
- /* prev does not change */
- }
- }
-}
-
-/*
- * smgrGetPendingDeletes() -- Get a list of relations to be deleted.
- *
- * The return value is the number of relations scheduled for termination.
- * *ptr is set to point to a freshly-palloc'd array of RelFileForks.
- * If there are no relations to be deleted, *ptr is set to NULL.
- *
- * If haveNonTemp isn't NULL, the bool it points to gets set to true if
- * there is any non-temp table pending to be deleted; false if not.
- *
- * Note that the list does not include anything scheduled for termination
- * by upper-level transactions.
- */
-int
-smgrGetPendingDeletes(bool forCommit, RelFileFork **ptr, bool *haveNonTemp)
-{
- int nestLevel = GetCurrentTransactionNestLevel();
- int nrels;
- RelFileFork *rptr;
- PendingRelDelete *pending;
-
- nrels = 0;
- if (haveNonTemp)
- *haveNonTemp = false;
- for (pending = pendingDeletes; pending != NULL; pending = pending->next)
- {
- if (pending->nestLevel >= nestLevel && pending->atCommit == forCommit)
- nrels++;
- }
- if (nrels == 0)
- {
- *ptr = NULL;
- return 0;
- }
- rptr = (RelFileFork *) palloc(nrels * sizeof(RelFileFork));
- *ptr = rptr;
- for (pending = pendingDeletes; pending != NULL; pending = pending->next)
- {
- if (pending->nestLevel >= nestLevel && pending->atCommit == forCommit)
- {
- rptr->rnode = pending->relnode;
- rptr->forknum = pending->forknum;
- rptr++;
- }
- if (haveNonTemp && !pending->isTemp)
- *haveNonTemp = true;
- }
- return nrels;
-}
-
-/*
- * AtSubCommit_smgr() --- Take care of subtransaction commit.
- *
- * Reassign all items in the pending-deletes list to the parent transaction.
- */
-void
-AtSubCommit_smgr(void)
-{
- int nestLevel = GetCurrentTransactionNestLevel();
- PendingRelDelete *pending;
-
- for (pending = pendingDeletes; pending != NULL; pending = pending->next)
- {
- if (pending->nestLevel >= nestLevel)
- pending->nestLevel = nestLevel - 1;
- }
-}
-
-/*
- * AtSubAbort_smgr() --- Take care of subtransaction abort.
- *
- * Delete created relations and forget about deleted relations.
- * We can execute these operations immediately because we know this
- * subtransaction will not commit.
- */
-void
-AtSubAbort_smgr(void)
-{
- smgrDoPendingDeletes(false);
-}
-
-/*
- * smgrcommit() -- Prepare to commit changes made during the current
- * transaction.
- *
- * This is called before we actually commit.
- */
-void
-smgrcommit(void)
-{
- int i;
-
- for (i = 0; i < NSmgr; i++)
- {
- if (smgrsw[i].smgr_commit)
- (*(smgrsw[i].smgr_commit)) ();
- }
-}
-
-/*
- * smgrabort() -- Clean up after transaction abort.
- */
-void
-smgrabort(void)
-{
- int i;
-
- for (i = 0; i < NSmgr; i++)
- {
- if (smgrsw[i].smgr_abort)
- (*(smgrsw[i].smgr_abort)) ();
- }
-}
-
/*
* smgrpreckpt() -- Prepare for checkpoint.
*/
}
}
-
-void
-smgr_redo(XLogRecPtr lsn, XLogRecord *record)
-{
- uint8 info = record->xl_info & ~XLR_INFO_MASK;
-
- if (info == XLOG_SMGR_CREATE)
- {
- xl_smgr_create *xlrec = (xl_smgr_create *) XLogRecGetData(record);
- SMgrRelation reln;
-
- reln = smgropen(xlrec->rnode);
- smgrcreate(reln, xlrec->forknum, false, true);
- }
- else if (info == XLOG_SMGR_TRUNCATE)
- {
- xl_smgr_truncate *xlrec = (xl_smgr_truncate *) XLogRecGetData(record);
- SMgrRelation reln;
-
- reln = smgropen(xlrec->rnode);
-
- /*
- * Forcibly create relation if it doesn't exist (which suggests that
- * it was dropped somewhere later in the WAL sequence). As in
- * XLogOpenRelation, we prefer to recreate the rel and replay the log
- * as best we can until the drop is seen.
- */
- smgrcreate(reln, xlrec->forknum, false, true);
-
- /* Can't use smgrtruncate because it would try to xlog */
-
- /*
- * First, force bufmgr to drop any buffers it has for the to-be-
- * truncated blocks. We must do this, else subsequent XLogReadBuffer
- * operations will not re-extend the file properly.
- */
- DropRelFileNodeBuffers(xlrec->rnode, xlrec->forknum, false,
- xlrec->blkno);
-
- /* Do the truncation */
- (*(smgrsw[reln->smgr_which].smgr_truncate)) (reln,
- xlrec->forknum,
- xlrec->blkno,
- false);
-
- /* Also tell xlogutils.c about it */
- XLogTruncateRelation(xlrec->rnode, xlrec->forknum, xlrec->blkno);
- }
- else
- elog(PANIC, "smgr_redo: unknown op code %u", info);
-}
-
-void
-smgr_desc(StringInfo buf, uint8 xl_info, char *rec)
-{
- uint8 info = xl_info & ~XLR_INFO_MASK;
-
- if (info == XLOG_SMGR_CREATE)
- {
- xl_smgr_create *xlrec = (xl_smgr_create *) rec;
- char *path = relpath(xlrec->rnode, xlrec->forknum);
-
- appendStringInfo(buf, "file create: %s", path);
- pfree(path);
- }
- else if (info == XLOG_SMGR_TRUNCATE)
- {
- xl_smgr_truncate *xlrec = (xl_smgr_truncate *) rec;
- char *path = relpath(xlrec->rnode, xlrec->forknum);
-
- appendStringInfo(buf, "file truncate: %s to %u blocks", path,
- xlrec->blkno);
- pfree(path);
- }
- else
- appendStringInfo(buf, "UNKNOWN");
-}
*
* Resource managers definition
*
- * $PostgreSQL: pgsql/src/include/access/rmgr.h,v 1.18 2008/09/30 10:52:13 heikki Exp $
+ * $PostgreSQL: pgsql/src/include/access/rmgr.h,v 1.19 2008/11/19 10:34:52 heikki Exp $
*/
#ifndef RMGR_H
#define RMGR_H
#define RM_DBASE_ID 4
#define RM_TBLSPC_ID 5
#define RM_MULTIXACT_ID 6
-#define RM_FREESPACE_ID 7
#define RM_HEAP2_ID 9
#define RM_HEAP_ID 10
#define RM_BTREE_ID 11
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/access/xact.h,v 1.95 2008/08/11 11:05:11 heikki Exp $
+ * $PostgreSQL: pgsql/src/include/access/xact.h,v 1.96 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
typedef struct xl_xact_commit
{
TimestampTz xact_time; /* time of commit */
- int nrels; /* number of RelFileForks */
+ int nrels; /* number of RelFileNodes */
int nsubxacts; /* number of subtransaction XIDs */
- /* Array of RelFileFork(s) to drop at commit */
- RelFileFork xnodes[1]; /* VARIABLE LENGTH ARRAY */
+ /* Array of RelFileNode(s) to drop at commit */
+ RelFileNode xnodes[1]; /* VARIABLE LENGTH ARRAY */
/* ARRAY OF COMMITTED SUBTRANSACTION XIDs FOLLOWS */
} xl_xact_commit;
typedef struct xl_xact_abort
{
TimestampTz xact_time; /* time of abort */
- int nrels; /* number of RelFileForks */
+ int nrels; /* number of RelFileNodes */
int nsubxacts; /* number of subtransaction XIDs */
- /* Array of RelFileFork(s) to drop at abort */
- RelFileFork xnodes[1]; /* VARIABLE LENGTH ARRAY */
+ /* Array of RelFileNode(s) to drop at abort */
+ RelFileNode xnodes[1]; /* VARIABLE LENGTH ARRAY */
/* ARRAY OF ABORTED SUBTRANSACTION XIDs FOLLOWS */
} xl_xact_abort;
--- /dev/null
+/*-------------------------------------------------------------------------
+ *
+ * storage.h
+ * prototypes for functions in backend/catalog/storage.c
+ *
+ *
+ * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * $PostgreSQL: pgsql/src/include/catalog/storage.h,v 1.1 2008/11/19 10:34:52 heikki Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef STORAGE_H
+#define STORAGE_H
+
+#include "storage/block.h"
+#include "storage/relfilenode.h"
+#include "utils/rel.h"
+
+extern void RelationCreateStorage(RelFileNode rnode, bool istemp);
+extern void RelationDropStorage(Relation rel);
+extern void RelationTruncate(Relation rel, BlockNumber nblocks);
+
+/*
+ * These functions used to be in storage/smgr/smgr.c, which explains the
+ * naming
+ */
+extern void smgrDoPendingDeletes(bool isCommit);
+extern int smgrGetPendingDeletes(bool forCommit, RelFileNode **ptr,
+ bool *haveNonTemp);
+extern void AtSubCommit_smgr(void);
+extern void AtSubAbort_smgr(void);
+extern void PostPrepare_smgr(void);
+
+extern void smgr_redo(XLogRecPtr lsn, XLogRecord *record);
+extern void smgr_desc(StringInfo buf, uint8 xl_info, char *rec);
+
+#endif /* STORAGE_H */
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/storage/bufmgr.h,v 1.117 2008/11/06 20:51:15 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/storage/bufmgr.h,v 1.118 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
extern void CheckPointBuffers(int flags);
extern BlockNumber BufferGetBlockNumber(Buffer buffer);
extern BlockNumber RelationGetNumberOfBlocks(Relation relation);
-extern void RelationTruncate(Relation rel, BlockNumber nblocks);
extern void FlushRelationBuffers(Relation rel);
extern void FlushDatabaseBuffers(Oid dbid);
extern void DropRelFileNodeBuffers(RelFileNode rnode, ForkNumber forkNum,
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/storage/freespace.h,v 1.30 2008/10/31 19:40:27 heikki Exp $
+ * $PostgreSQL: pgsql/src/include/storage/freespace.h,v 1.31 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
extern void FreeSpaceMapTruncateRel(Relation rel, BlockNumber nblocks);
extern void FreeSpaceMapVacuum(Relation rel);
-/* WAL prototypes */
-extern void fsm_desc(StringInfo buf, uint8 xl_info, char *rec);
-extern void fsm_redo(XLogRecPtr lsn, XLogRecord *record);
-
#endif /* FREESPACE_H */
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/storage/indexfsm.h,v 1.2 2008/10/06 08:04:11 heikki Exp $
+ * $PostgreSQL: pgsql/src/include/storage/indexfsm.h,v 1.3 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
extern void RecordFreeIndexPage(Relation rel, BlockNumber page);
extern void RecordUsedIndexPage(Relation rel, BlockNumber page);
-extern void InitIndexFreeSpaceMap(Relation rel);
-extern void IndexFreeSpaceMapTruncate(Relation rel, BlockNumber nblocks);
extern void IndexFreeSpaceMapVacuum(Relation rel);
#endif /* INDEXFSM_H */
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/storage/relfilenode.h,v 1.19 2008/10/06 14:13:17 heikki Exp $
+ * $PostgreSQL: pgsql/src/include/storage/relfilenode.h,v 1.20 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
(node1).dbNode == (node2).dbNode && \
(node1).spcNode == (node2).spcNode)
-/*
- * RelFileFork identifies a particular fork of a relation.
- */
-typedef struct RelFileFork
-{
- RelFileNode rnode;
- ForkNumber forknum;
-} RelFileFork;
-
#endif /* RELFILENODE_H */
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/storage/smgr.h,v 1.63 2008/08/11 11:05:11 heikki Exp $
+ * $PostgreSQL: pgsql/src/include/storage/smgr.h,v 1.64 2008/11/19 10:34:52 heikki Exp $
*
*-------------------------------------------------------------------------
*/
extern void smgrclose(SMgrRelation reln);
extern void smgrcloseall(void);
extern void smgrclosenode(RelFileNode rnode);
-extern void smgrcreate(SMgrRelation reln, ForkNumber forknum,
- bool isTemp, bool isRedo);
-extern void smgrscheduleunlink(SMgrRelation reln, ForkNumber forknum,
- bool isTemp);
+extern void smgrcreate(SMgrRelation reln, ForkNumber forknum, bool isRedo);
extern void smgrdounlink(SMgrRelation reln, ForkNumber forknum,
bool isTemp, bool isRedo);
extern void smgrextend(SMgrRelation reln, ForkNumber forknum,
extern void smgrtruncate(SMgrRelation reln, ForkNumber forknum,
BlockNumber nblocks, bool isTemp);
extern void smgrimmedsync(SMgrRelation reln, ForkNumber forknum);
-extern void smgrDoPendingDeletes(bool isCommit);
-extern int smgrGetPendingDeletes(bool forCommit, RelFileFork **ptr,
- bool *haveNonTemp);
-extern void AtSubCommit_smgr(void);
-extern void AtSubAbort_smgr(void);
-extern void PostPrepare_smgr(void);
-extern void smgrcommit(void);
-extern void smgrabort(void);
extern void smgrpreckpt(void);
extern void smgrsync(void);
extern void smgrpostckpt(void);
-extern void smgr_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void smgr_desc(StringInfo buf, uint8 xl_info, char *rec);
-
/* internals: move me elsewhere -- ay 7/94 */
projects / postgresql / commitdiff