diff options
| -rw-r--r-- | src/backend/storage/ipc/procarray.c | 52 | ||||
| -rw-r--r-- | src/include/storage/procarray.h | 1 |
2 files changed, 0 insertions, 53 deletions
diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c index e5b945a9ee3..2418967def6 100644 --- a/src/backend/storage/ipc/procarray.c +++ b/src/backend/storage/ipc/procarray.c @@ -1622,58 +1622,6 @@ TransactionIdIsInProgress(TransactionId xid) return false; } -/* - * TransactionIdIsActive -- is xid the top-level XID of an active backend? - * - * This differs from TransactionIdIsInProgress in that it ignores prepared - * transactions, as well as transactions running on the primary if we're in - * hot standby. Also, we ignore subtransactions since that's not needed - * for current uses. - */ -bool -TransactionIdIsActive(TransactionId xid) -{ - bool result = false; - ProcArrayStruct *arrayP = procArray; - TransactionId *other_xids = ProcGlobal->xids; - int i; - - /* - * Don't bother checking a transaction older than RecentXmin; it could not - * possibly still be running. - */ - if (TransactionIdPrecedes(xid, RecentXmin)) - return false; - - LWLockAcquire(ProcArrayLock, LW_SHARED); - - for (i = 0; i < arrayP->numProcs; i++) - { - int pgprocno = arrayP->pgprocnos[i]; - PGPROC *proc = &allProcs[pgprocno]; - TransactionId pxid; - - /* Fetch xid just once - see GetNewTransactionId */ - pxid = UINT32_ACCESS_ONCE(other_xids[i]); - - if (!TransactionIdIsValid(pxid)) - continue; - - if (proc->pid == 0) - continue; /* ignore prepared transactions */ - - if (TransactionIdEquals(pxid, xid)) - { - result = true; - break; - } - } - - LWLockRelease(ProcArrayLock); - - return result; -} - /* * Determine XID horizons. diff --git a/src/include/storage/procarray.h b/src/include/storage/procarray.h index ef0b733ebe8..e4877d88e8f 100644 --- a/src/include/storage/procarray.h +++ b/src/include/storage/procarray.h @@ -53,7 +53,6 @@ extern bool ProcArrayInstallRestoredXmin(TransactionId xmin, PGPROC *proc); extern RunningTransactions GetRunningTransactionData(void); extern bool TransactionIdIsInProgress(TransactionId xid); -extern bool TransactionIdIsActive(TransactionId xid); extern TransactionId GetOldestNonRemovableTransactionId(Relation rel); extern TransactionId GetOldestTransactionIdConsideredRunning(void); extern TransactionId GetOldestActiveTransactionId(void); |