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| #ifndef PROCARRAY_H |
| #define PROCARRAY_H |
|
|
| #include "storage/lock.h" |
| #include "storage/standby.h" |
| #include "utils/relcache.h" |
| #include "utils/snapshot.h" |
|
|
|
|
| extern Size ProcArrayShmemSize(void); |
| extern void CreateSharedProcArray(void); |
| extern void ProcArrayAdd(PGPROC *proc); |
| extern void ProcArrayRemove(PGPROC *proc, TransactionId latestXid); |
|
|
| extern void ProcArrayEndTransaction(PGPROC *proc, TransactionId latestXid); |
| extern void ProcArrayClearTransaction(PGPROC *proc); |
|
|
| extern void ProcArrayInitRecovery(TransactionId initializedUptoXID); |
| extern void ProcArrayApplyRecoveryInfo(RunningTransactions running); |
| extern void ProcArrayApplyXidAssignment(TransactionId topxid, |
| int nsubxids, TransactionId *subxids); |
|
|
| extern void RecordKnownAssignedTransactionIds(TransactionId xid); |
| extern void ExpireTreeKnownAssignedTransactionIds(TransactionId xid, |
| int nsubxids, TransactionId *subxids, |
| TransactionId max_xid); |
| extern void ExpireAllKnownAssignedTransactionIds(void); |
| extern void ExpireOldKnownAssignedTransactionIds(TransactionId xid); |
| extern void KnownAssignedTransactionIdsIdleMaintenance(void); |
|
|
| extern int GetMaxSnapshotXidCount(void); |
| extern int GetMaxSnapshotSubxidCount(void); |
|
|
| extern Snapshot GetSnapshotData(Snapshot snapshot); |
|
|
| extern bool ProcArrayInstallImportedXmin(TransactionId xmin, |
| VirtualTransactionId *sourcevxid); |
| 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); |
| extern TransactionId GetOldestSafeDecodingTransactionId(bool catalogOnly); |
| extern void GetReplicationHorizons(TransactionId *xmin, TransactionId *catalog_xmin); |
|
|
| extern VirtualTransactionId *GetVirtualXIDsDelayingChkpt(int *nvxids, int type); |
| extern bool HaveVirtualXIDsDelayingChkpt(VirtualTransactionId *vxids, |
| int nvxids, int type); |
|
|
| extern PGPROC *BackendPidGetProc(int pid); |
| extern PGPROC *BackendPidGetProcWithLock(int pid); |
| extern int BackendXidGetPid(TransactionId xid); |
| extern bool IsBackendPid(int pid); |
|
|
| extern VirtualTransactionId *GetCurrentVirtualXIDs(TransactionId limitXmin, |
| bool excludeXmin0, bool allDbs, int excludeVacuum, |
| int *nvxids); |
| extern VirtualTransactionId *GetConflictingVirtualXIDs(TransactionId limitXmin, Oid dbOid); |
| extern pid_t CancelVirtualTransaction(VirtualTransactionId vxid, ProcSignalReason sigmode); |
| extern pid_t SignalVirtualTransaction(VirtualTransactionId vxid, ProcSignalReason sigmode, |
| bool conflictPending); |
|
|
| extern bool MinimumActiveBackends(int min); |
| extern int CountDBBackends(Oid databaseid); |
| extern int CountDBConnections(Oid databaseid); |
| extern void CancelDBBackends(Oid databaseid, ProcSignalReason sigmode, bool conflictPending); |
| extern int CountUserBackends(Oid roleid); |
| extern bool CountOtherDBBackends(Oid databaseId, |
| int *nbackends, int *nprepared); |
| extern void TerminateOtherDBBackends(Oid databaseId); |
|
|
| extern void XidCacheRemoveRunningXids(TransactionId xid, |
| int nxids, const TransactionId *xids, |
| TransactionId latestXid); |
|
|
| extern void ProcArraySetReplicationSlotXmin(TransactionId xmin, |
| TransactionId catalog_xmin, bool already_locked); |
|
|
| extern void ProcArrayGetReplicationSlotXmin(TransactionId *xmin, |
| TransactionId *catalog_xmin); |
|
|
| #endif |
|
|
