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Pgindent run for 8.0.

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This commit is contained in:
Bruce Momjian
2004-08-29 05:07:03 +00:00
parent 90cb9c3051
commit b6b71b85bc
527 changed files with 20550 additions and 18283 deletions
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3
src/backend/access/transam/clog.c
View File

@@ -24,7 +24,7 @@
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.24 2004/08/29 04:12:23 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.25 2004/08/29 05:06:40 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -62,6 +62,7 @@
* Link to shared-memory data structures for CLOG control
*/
static SlruCtlData ClogCtlData;
#define ClogCtl (&ClogCtlData)

68
src/backend/access/transam/slru.c
View File

@@ -48,7 +48,7 @@
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/slru.c,v 1.20 2004/08/29 04:12:23 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/slru.c,v 1.21 2004/08/29 05:06:40 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -79,7 +79,7 @@
* segment and page numbers in SimpleLruTruncate (see PagePrecedes()).
*
* Note: this file currently assumes that segment file names will be four
* hex digits. This sets a lower bound on the segment size (64K transactions
* hex digits. This sets a lower bound on the segment size (64K transactions
* for 32-bit TransactionIds).
*/
#define SLRU_PAGES_PER_SEGMENT 32
@@ -96,9 +96,9 @@
*/
typedef struct SlruFlushData
{
int num_files; /* # files actually open */
int fd[NUM_SLRU_BUFFERS]; /* their FD's */
int segno[NUM_SLRU_BUFFERS]; /* their log seg#s */
int num_files; /* # files actually open */
int fd[NUM_SLRU_BUFFERS]; /* their FD's */
int segno[NUM_SLRU_BUFFERS]; /* their log seg#s */
} SlruFlushData;
/*
@@ -132,7 +132,7 @@ static int slru_errno;
static bool SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno);
static bool SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno,
SlruFlush fdata);
SlruFlush fdata);
static void SlruReportIOError(SlruCtl ctl, int pageno, TransactionId xid);
static int SlruSelectLRUPage(SlruCtl ctl, int pageno);
@@ -385,7 +385,7 @@ SimpleLruWritePage(SlruCtl ctl, int slotno, SlruFlush fdata)
/* If we failed, and we're in a flush, better close the files */
if (!ok && fdata)
{
int i;
int i;
for (i = 0; i < fdata->num_files; i++)
close(fdata->fd[i]);
@@ -511,7 +511,7 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
*/
if (fdata)
{
int i;
int i;
for (i = 0; i < fdata->num_files; i++)
{
@@ -527,16 +527,17 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
{
/*
* If the file doesn't already exist, we should create it. It is
* possible for this to need to happen when writing a page that's not
* first in its segment; we assume the OS can cope with that.
* (Note: it might seem that it'd be okay to create files only when
* SimpleLruZeroPage is called for the first page of a segment.
* However, if after a crash and restart the REDO logic elects to
* replay the log from a checkpoint before the latest one, then it's
* possible that we will get commands to set transaction status of
* transactions that have already been truncated from the commit log.
* Easiest way to deal with that is to accept references to
* nonexistent files here and in SlruPhysicalReadPage.)
* possible for this to need to happen when writing a page that's
* not first in its segment; we assume the OS can cope with that.
* (Note: it might seem that it'd be okay to create files only
* when SimpleLruZeroPage is called for the first page of a
* segment. However, if after a crash and restart the REDO logic
* elects to replay the log from a checkpoint before the latest
* one, then it's possible that we will get commands to set
* transaction status of transactions that have already been
* truncated from the commit log. Easiest way to deal with that is
* to accept references to nonexistent files here and in
* SlruPhysicalReadPage.)
*/
SlruFileName(ctl, path, segno);
fd = BasicOpenFile(path, O_RDWR | PG_BINARY, S_IRUSR | S_IWUSR);
@@ -648,36 +649,36 @@ SlruReportIOError(SlruCtl ctl, int pageno, TransactionId xid)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not access status of transaction %u", xid),
errdetail("could not seek in file \"%s\" to offset %u: %m",
path, offset)));
errdetail("could not seek in file \"%s\" to offset %u: %m",
path, offset)));
break;
case SLRU_READ_FAILED:
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not access status of transaction %u", xid),
errdetail("could not read from file \"%s\" at offset %u: %m",
path, offset)));
errdetail("could not read from file \"%s\" at offset %u: %m",
path, offset)));
break;
case SLRU_WRITE_FAILED:
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not access status of transaction %u", xid),
errdetail("could not write to file \"%s\" at offset %u: %m",
path, offset)));
errdetail("could not write to file \"%s\" at offset %u: %m",
path, offset)));
break;
case SLRU_FSYNC_FAILED:
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not access status of transaction %u", xid),
errdetail("could not fsync file \"%s\": %m",
path)));
errdetail("could not fsync file \"%s\": %m",
path)));
break;
case SLRU_CLOSE_FAILED:
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not access status of transaction %u", xid),
errdetail("could not close file \"%s\": %m",
path)));
errdetail("could not close file \"%s\": %m",
path)));
break;
default:
/* can't get here, we trust */
@@ -841,8 +842,8 @@ SimpleLruTruncate(SlruCtl ctl, int cutoffPage)
/*
* Scan shared memory and remove any pages preceding the cutoff page,
* to ensure we won't rewrite them later. (Since this is normally
* called in or just after a checkpoint, any dirty pages should
* have been flushed already ... we're just being extra careful here.)
* called in or just after a checkpoint, any dirty pages should have
* been flushed already ... we're just being extra careful here.)
*/
LWLockAcquire(shared->ControlLock, LW_EXCLUSIVE);
@@ -952,8 +953,11 @@ SlruScanDirectory(SlruCtl ctl, int cutoffPage, bool doDeletions)
errno = 0;
}
#ifdef WIN32
/* This fix is in mingw cvs (runtime/mingwex/dirent.c rev 1.4), but
not in released version */
/*
* This fix is in mingw cvs (runtime/mingwex/dirent.c rev 1.4), but
* not in released version
*/
if (GetLastError() == ERROR_NO_MORE_FILES)
errno = 0;
#endif

26
src/backend/access/transam/subtrans.c
View File

@@ -5,7 +5,7 @@
*
* The pg_subtrans manager is a pg_clog-like manager that stores the parent
* transaction Id for each transaction. It is a fundamental part of the
* nested transactions implementation. A main transaction has a parent
* nested transactions implementation. A main transaction has a parent
* of InvalidTransactionId, and each subtransaction has its immediate parent.
* The tree can easily be walked from child to parent, but not in the
* opposite direction.
@@ -22,7 +22,7 @@
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/subtrans.c,v 1.4 2004/08/29 04:12:23 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/subtrans.c,v 1.5 2004/08/29 05:06:40 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -57,6 +57,7 @@
* Link to shared-memory data structures for SUBTRANS control
*/
static SlruCtlData SubTransCtlData;
#define SubTransCtl (&SubTransCtlData)
@@ -101,7 +102,7 @@ SubTransGetParent(TransactionId xid)
int entryno = TransactionIdToEntry(xid);
int slotno;
TransactionId *ptr;
TransactionId parent;
TransactionId parent;
/* Can't ask about stuff that might not be around anymore */
Assert(TransactionIdFollowsOrEquals(xid, RecentXmin));
@@ -139,7 +140,7 @@ TransactionId
SubTransGetTopmostTransaction(TransactionId xid)
{
TransactionId parentXid = xid,
previousXid = xid;
previousXid = xid;
/* Can't ask about stuff that might not be around anymore */
Assert(TransactionIdFollowsOrEquals(xid, RecentXmin));
@@ -185,7 +186,7 @@ SUBTRANSShmemInit(void)
* must have been called already.)
*
* Note: it's not really necessary to create the initial segment now,
* since slru.c would create it on first write anyway. But we may as well
* since slru.c would create it on first write anyway. But we may as well
* do it to be sure the directory is set up correctly.
*/
void
@@ -229,10 +230,11 @@ StartupSUBTRANS(void)
int startPage;
/*
* Since we don't expect pg_subtrans to be valid across crashes,
* we initialize the currently-active page to zeroes during startup.
* Since we don't expect pg_subtrans to be valid across crashes, we
* initialize the currently-active page to zeroes during startup.
* Whenever we advance into a new page, ExtendSUBTRANS will likewise
* zero the new page without regard to whatever was previously on disk.
* zero the new page without regard to whatever was previously on
* disk.
*/
LWLockAcquire(SubtransControlLock, LW_EXCLUSIVE);
@@ -251,8 +253,8 @@ ShutdownSUBTRANS(void)
/*
* Flush dirty SUBTRANS pages to disk
*
* This is not actually necessary from a correctness point of view.
* We do it merely as a debugging aid.
* This is not actually necessary from a correctness point of view. We do
* it merely as a debugging aid.
*/
SimpleLruFlush(SubTransCtl, false);
}
@@ -266,8 +268,8 @@ CheckPointSUBTRANS(void)
/*
* Flush dirty SUBTRANS pages to disk
*
* This is not actually necessary from a correctness point of view.
* We do it merely to improve the odds that writing of dirty pages is done
* This is not actually necessary from a correctness point of view. We do
* it merely to improve the odds that writing of dirty pages is done
* by the checkpoint process and not by backends.
*/
SimpleLruFlush(SubTransCtl, true);

20
src/backend/access/transam/transam.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/transam.c,v 1.60 2004/08/29 04:12:23 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/transam.c,v 1.61 2004/08/29 05:06:40 momjian Exp $
*
* NOTES
* This file contains the high level access-method interface to the
@@ -126,7 +126,7 @@ TransactionLogUpdate(TransactionId transactionId, /* trans id to update */
static void
TransactionLogMultiUpdate(int nxids, TransactionId *xids, XidStatus status)
{
int i;
int i;
Assert(nxids != 0);
@@ -199,9 +199,10 @@ TransactionIdDidCommit(TransactionId transactionId)
return true;
/*
* If it's marked subcommitted, we have to check the parent recursively.
* However, if it's older than RecentXmin, we can't look at pg_subtrans;
* instead assume that the parent crashed without cleaning up its children.
* If it's marked subcommitted, we have to check the parent
* recursively. However, if it's older than RecentXmin, we can't look
* at pg_subtrans; instead assume that the parent crashed without
* cleaning up its children.
*/
if (xidstatus == TRANSACTION_STATUS_SUB_COMMITTED)
{
@@ -214,7 +215,7 @@ TransactionIdDidCommit(TransactionId transactionId)
return TransactionIdDidCommit(parentXid);
}
/*
/*
* It's not committed.
*/
return false;
@@ -247,9 +248,10 @@ TransactionIdDidAbort(TransactionId transactionId)
return true;
/*
* If it's marked subcommitted, we have to check the parent recursively.
* However, if it's older than RecentXmin, we can't look at pg_subtrans;
* instead assume that the parent crashed without cleaning up its children.
* If it's marked subcommitted, we have to check the parent
* recursively. However, if it's older than RecentXmin, we can't look
* at pg_subtrans; instead assume that the parent crashed without
* cleaning up its children.
*/
if (xidstatus == TRANSACTION_STATUS_SUB_COMMITTED)
{

41
src/backend/access/transam/varsup.c
View File

@@ -6,7 +6,7 @@
* Copyright (c) 2000-2004, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/varsup.c,v 1.58 2004/08/29 04:12:23 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/varsup.c,v 1.59 2004/08/29 05:06:40 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -47,9 +47,9 @@ GetNewTransactionId(bool isSubXact)
xid = ShmemVariableCache->nextXid;
/*
* If we are allocating the first XID of a new page of the commit
* log, zero out that commit-log page before returning. We must do
* this while holding XidGenLock, else another xact could acquire and
* If we are allocating the first XID of a new page of the commit log,
* zero out that commit-log page before returning. We must do this
* while holding XidGenLock, else another xact could acquire and
* commit a later XID before we zero the page. Fortunately, a page of
* the commit log holds 32K or more transactions, so we don't have to
* do this very often.
@@ -61,17 +61,18 @@ GetNewTransactionId(bool isSubXact)
/*
* Now advance the nextXid counter. This must not happen until after
* we have successfully completed ExtendCLOG() --- if that routine fails,
* we want the next incoming transaction to try it again. We cannot
* assign more XIDs until there is CLOG space for them.
* we have successfully completed ExtendCLOG() --- if that routine
* fails, we want the next incoming transaction to try it again. We
* cannot assign more XIDs until there is CLOG space for them.
*/
TransactionIdAdvance(ShmemVariableCache->nextXid);
/*
* We must store the new XID into the shared PGPROC array before releasing
* XidGenLock. This ensures that when GetSnapshotData calls
* We must store the new XID into the shared PGPROC array before
* releasing XidGenLock. This ensures that when GetSnapshotData calls
* ReadNewTransactionId, all active XIDs before the returned value of
* nextXid are already present in PGPROC. Else we have a race condition.
* nextXid are already present in PGPROC. Else we have a race
* condition.
*
* XXX by storing xid into MyProc without acquiring SInvalLock, we are
* relying on fetch/store of an xid to be atomic, else other backends
@@ -86,19 +87,19 @@ GetNewTransactionId(bool isSubXact)
*
* A solution to the atomic-store problem would be to give each PGPROC
* its own spinlock used only for fetching/storing that PGPROC's xid
* and related fields. (SInvalLock would then mean primarily that
* and related fields. (SInvalLock would then mean primarily that
* PGPROCs couldn't be added/removed while holding the lock.)
*
* If there's no room to fit a subtransaction XID into PGPROC, set the
* cache-overflowed flag instead. This forces readers to look in
* pg_subtrans to map subtransaction XIDs up to top-level XIDs.
* There is a race-condition window, in that the new XID will not
* appear as running until its parent link has been placed into
* pg_subtrans. However, that will happen before anyone could possibly
* have a reason to inquire about the status of the XID, so it seems
* OK. (Snapshots taken during this window *will* include the parent
* XID, so they will deliver the correct answer later on when someone
* does have a reason to inquire.)
* pg_subtrans to map subtransaction XIDs up to top-level XIDs. There
* is a race-condition window, in that the new XID will not appear as
* running until its parent link has been placed into pg_subtrans.
* However, that will happen before anyone could possibly have a
* reason to inquire about the status of the XID, so it seems OK.
* (Snapshots taken during this window *will* include the parent XID,
* so they will deliver the correct answer later on when someone does
* have a reason to inquire.)
*/
if (MyProc != NULL)
{
@@ -112,9 +113,7 @@ GetNewTransactionId(bool isSubXact)
MyProc->subxids.nxids++;
}
else
{
MyProc->subxids.overflowed = true;
}
}
}

478
src/backend/access/transam/xact.c
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File diff suppressed because it is too large Load Diff

654
src/backend/access/transam/xlog.c
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File diff suppressed because it is too large Load Diff

19
src/backend/access/transam/xlogutils.c
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@@ -11,7 +11,7 @@
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/xlogutils.c,v 1.33 2004/08/29 04:12:23 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xlogutils.c,v 1.34 2004/08/29 05:06:41 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -212,11 +212,11 @@ XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode)
res->reldata.rd_node = rnode;
/*
* We set up the lockRelId in case anything tries to lock the dummy
* relation. Note that this is fairly bogus since relNode may be
* different from the relation's OID. It shouldn't really matter
* though, since we are presumably running by ourselves and can't
* have any lock conflicts ...
* We set up the lockRelId in case anything tries to lock the
* dummy relation. Note that this is fairly bogus since relNode
* may be different from the relation's OID. It shouldn't really
* matter though, since we are presumably running by ourselves and
* can't have any lock conflicts ...
*/
res->reldata.rd_lockInfo.lockRelId.dbId = rnode.dbNode;
res->reldata.rd_lockInfo.lockRelId.relId = rnode.relNode;
@@ -234,14 +234,15 @@ XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode)
res->reldata.rd_targblock = InvalidBlockNumber;
res->reldata.rd_smgr = smgropen(res->reldata.rd_node);
/*
* Create the target file if it doesn't already exist. This lets
* us cope if the replay sequence contains writes to a relation
* that is later deleted. (The original coding of this routine
* would instead return NULL, causing the writes to be suppressed.
* But that seems like it risks losing valuable data if the filesystem
* loses an inode during a crash. Better to write the data until we
* are actually told to delete the file.)
* But that seems like it risks losing valuable data if the
* filesystem loses an inode during a crash. Better to write the
* data until we are actually told to delete the file.)
*/
smgrcreate(res->reldata.rd_smgr, res->reldata.rd_istemp, true);
}