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Diffstat (limited to 'src/backend/access/transam/multixact.c')
-rw-r--r--src/backend/access/transam/multixact.c136
1 files changed, 22 insertions, 114 deletions
diff --git a/src/backend/access/transam/multixact.c b/src/backend/access/transam/multixact.c
index 3c06ac45532..3cb09c3d598 100644
--- a/src/backend/access/transam/multixact.c
+++ b/src/backend/access/transam/multixact.c
@@ -401,8 +401,6 @@ static void mXactCachePut(MultiXactId multi, int nmembers,
static char *mxstatus_to_string(MultiXactStatus status);
/* management of SLRU infrastructure */
-static int ZeroMultiXactOffsetPage(int64 pageno, bool writeXlog);
-static int ZeroMultiXactMemberPage(int64 pageno, bool writeXlog);
static bool MultiXactOffsetPagePrecedes(int64 page1, int64 page2);
static bool MultiXactMemberPagePrecedes(int64 page1, int64 page2);
static bool MultiXactOffsetPrecedes(MultiXactOffset offset1,
@@ -413,7 +411,6 @@ static bool MultiXactOffsetWouldWrap(MultiXactOffset boundary,
MultiXactOffset start, uint32 distance);
static bool SetOffsetVacuumLimit(bool is_startup);
static bool find_multixact_start(MultiXactId multi, MultiXactOffset *result);
-static void WriteMZeroPageXlogRec(int64 pageno, uint8 info);
static void WriteMTruncateXlogRec(Oid oldestMultiDB,
MultiXactId startTruncOff,
MultiXactId endTruncOff,
@@ -1847,7 +1844,7 @@ AtPrepare_MultiXact(void)
* Clean up after successful PREPARE TRANSACTION
*/
void
-PostPrepare_MultiXact(TransactionId xid)
+PostPrepare_MultiXact(FullTransactionId fxid)
{
MultiXactId myOldestMember;
@@ -1858,7 +1855,7 @@ PostPrepare_MultiXact(TransactionId xid)
myOldestMember = OldestMemberMXactId[MyProcNumber];
if (MultiXactIdIsValid(myOldestMember))
{
- ProcNumber dummyProcNumber = TwoPhaseGetDummyProcNumber(xid, false);
+ ProcNumber dummyProcNumber = TwoPhaseGetDummyProcNumber(fxid, false);
/*
* Even though storing MultiXactId is atomic, acquire lock to make
@@ -1896,10 +1893,10 @@ PostPrepare_MultiXact(TransactionId xid)
* Recover the state of a prepared transaction at startup
*/
void
-multixact_twophase_recover(TransactionId xid, uint16 info,
+multixact_twophase_recover(FullTransactionId fxid, uint16 info,
void *recdata, uint32 len)
{
- ProcNumber dummyProcNumber = TwoPhaseGetDummyProcNumber(xid, false);
+ ProcNumber dummyProcNumber = TwoPhaseGetDummyProcNumber(fxid, false);
MultiXactId oldestMember;
/*
@@ -1917,10 +1914,10 @@ multixact_twophase_recover(TransactionId xid, uint16 info,
* Similar to AtEOXact_MultiXact but for COMMIT PREPARED
*/
void
-multixact_twophase_postcommit(TransactionId xid, uint16 info,
+multixact_twophase_postcommit(FullTransactionId fxid, uint16 info,
void *recdata, uint32 len)
{
- ProcNumber dummyProcNumber = TwoPhaseGetDummyProcNumber(xid, true);
+ ProcNumber dummyProcNumber = TwoPhaseGetDummyProcNumber(fxid, true);
Assert(len == sizeof(MultiXactId));
@@ -1932,10 +1929,10 @@ multixact_twophase_postcommit(TransactionId xid, uint16 info,
* This is actually just the same as the COMMIT case.
*/
void
-multixact_twophase_postabort(TransactionId xid, uint16 info,
+multixact_twophase_postabort(FullTransactionId fxid, uint16 info,
void *recdata, uint32 len)
{
- multixact_twophase_postcommit(xid, info, recdata, len);
+ multixact_twophase_postcommit(fxid, info, recdata, len);
}
/*
@@ -2033,70 +2030,9 @@ check_multixact_member_buffers(int *newval, void **extra, GucSource source)
void
BootStrapMultiXact(void)
{
- int slotno;
- LWLock *lock;
-
- lock = SimpleLruGetBankLock(MultiXactOffsetCtl, 0);
- LWLockAcquire(lock, LW_EXCLUSIVE);
-
- /* Create and zero the first page of the offsets log */
- slotno = ZeroMultiXactOffsetPage(0, false);
-
- /* Make sure it's written out */
- SimpleLruWritePage(MultiXactOffsetCtl, slotno);
- Assert(!MultiXactOffsetCtl->shared->page_dirty[slotno]);
-
- LWLockRelease(lock);
-
- lock = SimpleLruGetBankLock(MultiXactMemberCtl, 0);
- LWLockAcquire(lock, LW_EXCLUSIVE);
-
- /* Create and zero the first page of the members log */
- slotno = ZeroMultiXactMemberPage(0, false);
-
- /* Make sure it's written out */
- SimpleLruWritePage(MultiXactMemberCtl, slotno);
- Assert(!MultiXactMemberCtl->shared->page_dirty[slotno]);
-
- LWLockRelease(lock);
-}
-
-/*
- * Initialize (or reinitialize) a page of MultiXactOffset to zeroes.
- * If writeXlog is true, also emit an XLOG record saying we did this.
- *
- * The page is not actually written, just set up in shared memory.
- * The slot number of the new page is returned.
- *
- * Control lock must be held at entry, and will be held at exit.
- */
-static int
-ZeroMultiXactOffsetPage(int64 pageno, bool writeXlog)
-{
- int slotno;
-
- slotno = SimpleLruZeroPage(MultiXactOffsetCtl, pageno);
-
- if (writeXlog)
- WriteMZeroPageXlogRec(pageno, XLOG_MULTIXACT_ZERO_OFF_PAGE);
-
- return slotno;
-}
-
-/*
- * Ditto, for MultiXactMember
- */
-static int
-ZeroMultiXactMemberPage(int64 pageno, bool writeXlog)
-{
- int slotno;
-
- slotno = SimpleLruZeroPage(MultiXactMemberCtl, pageno);
-
- if (writeXlog)
- WriteMZeroPageXlogRec(pageno, XLOG_MULTIXACT_ZERO_MEM_PAGE);
-
- return slotno;
+ /* Zero the initial pages and flush them to disk */
+ SimpleLruZeroAndWritePage(MultiXactOffsetCtl, 0);
+ SimpleLruZeroAndWritePage(MultiXactMemberCtl, 0);
}
/*
@@ -2134,7 +2070,7 @@ MaybeExtendOffsetSlru(void)
* with creating a new segment file even if the page we're writing is
* not the first in it, so this is enough.
*/
- slotno = ZeroMultiXactOffsetPage(pageno, false);
+ slotno = SimpleLruZeroPage(MultiXactOffsetCtl, pageno);
SimpleLruWritePage(MultiXactOffsetCtl, slotno);
}
@@ -2568,8 +2504,10 @@ ExtendMultiXactOffset(MultiXactId multi)
LWLockAcquire(lock, LW_EXCLUSIVE);
- /* Zero the page and make an XLOG entry about it */
- ZeroMultiXactOffsetPage(pageno, true);
+ /* Zero the page and make a WAL entry about it */
+ SimpleLruZeroPage(MultiXactOffsetCtl, pageno);
+ XLogSimpleInsertInt64(RM_MULTIXACT_ID, XLOG_MULTIXACT_ZERO_OFF_PAGE,
+ pageno);
LWLockRelease(lock);
}
@@ -2611,8 +2549,10 @@ ExtendMultiXactMember(MultiXactOffset offset, int nmembers)
LWLockAcquire(lock, LW_EXCLUSIVE);
- /* Zero the page and make an XLOG entry about it */
- ZeroMultiXactMemberPage(pageno, true);
+ /* Zero the page and make a WAL entry about it */
+ SimpleLruZeroPage(MultiXactMemberCtl, pageno);
+ XLogSimpleInsertInt64(RM_MULTIXACT_ID,
+ XLOG_MULTIXACT_ZERO_MEM_PAGE, pageno);
LWLockRelease(lock);
}
@@ -3348,18 +3288,6 @@ MultiXactOffsetPrecedes(MultiXactOffset offset1, MultiXactOffset offset2)
}
/*
- * Write an xlog record reflecting the zeroing of either a MEMBERs or
- * OFFSETs page (info shows which)
- */
-static void
-WriteMZeroPageXlogRec(int64 pageno, uint8 info)
-{
- XLogBeginInsert();
- XLogRegisterData(&pageno, sizeof(pageno));
- (void) XLogInsert(RM_MULTIXACT_ID, info);
-}
-
-/*
* Write a TRUNCATE xlog record
*
* We must flush the xlog record to disk before returning --- see notes in
@@ -3401,36 +3329,16 @@ multixact_redo(XLogReaderState *record)
if (info == XLOG_MULTIXACT_ZERO_OFF_PAGE)
{
int64 pageno;
- int slotno;
- LWLock *lock;
memcpy(&pageno, XLogRecGetData(record), sizeof(pageno));
-
- lock = SimpleLruGetBankLock(MultiXactOffsetCtl, pageno);
- LWLockAcquire(lock, LW_EXCLUSIVE);
-
- slotno = ZeroMultiXactOffsetPage(pageno, false);
- SimpleLruWritePage(MultiXactOffsetCtl, slotno);
- Assert(!MultiXactOffsetCtl->shared->page_dirty[slotno]);
-
- LWLockRelease(lock);
+ SimpleLruZeroAndWritePage(MultiXactOffsetCtl, pageno);
}
else if (info == XLOG_MULTIXACT_ZERO_MEM_PAGE)
{
int64 pageno;
- int slotno;
- LWLock *lock;
memcpy(&pageno, XLogRecGetData(record), sizeof(pageno));
-
- lock = SimpleLruGetBankLock(MultiXactMemberCtl, pageno);
- LWLockAcquire(lock, LW_EXCLUSIVE);
-
- slotno = ZeroMultiXactMemberPage(pageno, false);
- SimpleLruWritePage(MultiXactMemberCtl, slotno);
- Assert(!MultiXactMemberCtl->shared->page_dirty[slotno]);
-
- LWLockRelease(lock);
+ SimpleLruZeroAndWritePage(MultiXactMemberCtl, pageno);
}
else if (info == XLOG_MULTIXACT_CREATE_ID)
{
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-08 23:18:51 +0000