PostgreSQL Source Code git master
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Data Fields
PGPROC Struct Reference

#include <proc.h>

Data Fields

dlist_head * procgloballist
 
dlist_node freeProcsLink
 
int pid
 
BackendType backendType
 
Oid databaseId
 
Oid roleId
 
Oid tempNamespaceId
 
int pgxactoff
 
uint8 statusFlags
 
struct { 
 
   ProcNumber   procNumber 
 
   LocalTransactionId   lxid 
 
} vxid 
 
TransactionId xid
 
TransactionId xmin
 
XidCacheStatus subxidStatus
 
struct XidCache subxids
 
Latch procLatch
 
PGSemaphore sem
 
int delayChkptFlags
 
pg_atomic_uint32 pendingRecoveryConflicts
 
uint8 lwWaiting
 
uint8 lwWaitMode
 
proclist_node lwWaitLink
 
proclist_node cvWaitLink
 
PGPROC * lockGroupLeader
 
dlist_head lockGroupMembers
 
dlist_node lockGroupLink
 
LOCK * waitLock
 
dlist_node waitLink
 
PROCLOCK * waitProcLock
 
LOCKMODE waitLockMode
 
LOCKMASK heldLocks
 
pg_atomic_uint64 waitStart
 
ProcWaitStatus waitStatus
 
dlist_head myProcLocks [NUM_LOCK_PARTITIONS]
 
LWLock fpInfoLock
 
uint64 * fpLockBits
 
Oid * fpRelId
 
bool fpVXIDLock
 
LocalTransactionId fpLocalTransactionId
 
XLogRecPtr waitLSN
 
int syncRepState
 
dlist_node syncRepLinks
 
bool procArrayGroupMember
 
pg_atomic_uint32 procArrayGroupNext
 
TransactionId procArrayGroupMemberXid
 
bool clogGroupMember
 
pg_atomic_uint32 clogGroupNext
 
TransactionId clogGroupMemberXid
 
XidStatus clogGroupMemberXidStatus
 
int64 clogGroupMemberPage
 
XLogRecPtr clogGroupMemberLsn
 
uint32 wait_event_info
 

Detailed Description

Definition at line 175 of file proc.h.

Field Documentation

◆ backendType

BackendType PGPROC::backendType

Definition at line 190 of file proc.h.

Referenced by CountDBConnections(), CountUserBackends(), InitAuxiliaryProcess(), InitProcess(), MarkAsPreparingGuts(), and pg_signal_backend().

◆ clogGroupMember

bool PGPROC::clogGroupMember

Definition at line 356 of file proc.h.

Referenced by InitProcess(), and TransactionGroupUpdateXidStatus().

◆ clogGroupMemberLsn

XLogRecPtr PGPROC::clogGroupMemberLsn

Definition at line 363 of file proc.h.

Referenced by InitProcess(), and TransactionGroupUpdateXidStatus().

◆ clogGroupMemberPage

int64 PGPROC::clogGroupMemberPage

Definition at line 361 of file proc.h.

Referenced by InitProcess(), and TransactionGroupUpdateXidStatus().

◆ clogGroupMemberXid

TransactionId PGPROC::clogGroupMemberXid

Definition at line 358 of file proc.h.

Referenced by InitProcess(), and TransactionGroupUpdateXidStatus().

◆ clogGroupMemberXidStatus

XidStatus PGPROC::clogGroupMemberXidStatus

Definition at line 359 of file proc.h.

Referenced by InitProcess(), and TransactionGroupUpdateXidStatus().

◆ clogGroupNext

pg_atomic_uint32 PGPROC::clogGroupNext

Definition at line 357 of file proc.h.

Referenced by InitProcess(), InitProcGlobal(), and TransactionGroupUpdateXidStatus().

◆ cvWaitLink

proclist_node PGPROC::cvWaitLink

Definition at line 280 of file proc.h.

◆ databaseId

Oid PGPROC::databaseId

Definition at line 193 of file proc.h.

Referenced by checkTempNamespaceStatus(), ComputeXidHorizons(), CountDBBackends(), CountDBConnections(), CountOtherDBBackends(), FastPathTransferRelationLocks(), GetConflictingVirtualXIDs(), GetCurrentVirtualXIDs(), GetLockConflicts(), GetLockStatusData(), GetOldestActiveTransactionId(), GetRunningTransactionData(), InitAuxiliaryProcess(), InitPostgres(), InitProcess(), LockGXact(), MarkAsPreparingGuts(), pg_prepared_xact(), ProcArrayInstallImportedXmin(), ProcArrayInstallRestoredXmin(), SignalRecoveryConflictWithDatabase(), StartPrepare(), TerminateBackgroundWorkersForDatabase(), and TerminateOtherDBBackends().

◆ delayChkptFlags

int PGPROC::delayChkptFlags

Definition at line 252 of file proc.h.

Referenced by EndPrepare(), GetOldestActiveTransactionId(), GetVirtualXIDsDelayingChkpt(), HaveVirtualXIDsDelayingChkpt(), heap_inplace_update_and_unlock(), InitAuxiliaryProcess(), InitProcess(), MarkAsPreparingGuts(), MarkBufferDirtyHint(), pg_truncate_visibility_map(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), RecordTransactionCommit(), RecordTransactionCommitPrepared(), RelationTruncate(), smgr_bulk_finish(), TruncateMultiXact(), and XLogSaveBufferForHint().

◆ fpInfoLock

LWLock PGPROC::fpInfoLock

Definition at line 316 of file proc.h.

Referenced by FastPathGetRelationLockEntry(), FastPathTransferRelationLocks(), GetLockConflicts(), GetLockStatusData(), InitProcGlobal(), LockAcquireExtended(), LockRelease(), LockReleaseAll(), VirtualXactLock(), VirtualXactLockTableCleanup(), and VirtualXactLockTableInsert().

◆ fpLocalTransactionId

LocalTransactionId PGPROC::fpLocalTransactionId

Definition at line 320 of file proc.h.

Referenced by GetLockStatusData(), InitAuxiliaryProcess(), InitProcess(), VirtualXactLock(), VirtualXactLockTableCleanup(), and VirtualXactLockTableInsert().

◆ fpLockBits

uint64* PGPROC::fpLockBits

Definition at line 317 of file proc.h.

Referenced by FastPathTransferRelationLocks(), GetLockConflicts(), GetLockStatusData(), and InitProcGlobal().

◆ fpRelId

Oid* PGPROC::fpRelId

Definition at line 318 of file proc.h.

Referenced by FastPathGetRelationLockEntry(), FastPathGrantRelationLock(), FastPathTransferRelationLocks(), FastPathUnGrantRelationLock(), GetLockConflicts(), GetLockStatusData(), and InitProcGlobal().

◆ fpVXIDLock

bool PGPROC::fpVXIDLock

Definition at line 319 of file proc.h.

Referenced by GetLockStatusData(), InitAuxiliaryProcess(), InitProcess(), VirtualXactLock(), VirtualXactLockTableCleanup(), and VirtualXactLockTableInsert().

◆ freeProcsLink

dlist_node PGPROC::freeProcsLink

Definition at line 178 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), and ProcKill().

◆ heldLocks

LOCKMASK PGPROC::heldLocks

Definition at line 300 of file proc.h.

Referenced by JoinWaitQueue().

◆ lockGroupLeader

PGPROC* PGPROC::lockGroupLeader

Definition at line 290 of file proc.h.

Referenced by BecomeLockGroupLeader(), BecomeLockGroupMember(), FindLockCycleRecurseMember(), GetBlockerStatusData(), InitAuxiliaryProcess(), InitProcess(), JoinWaitQueue(), lock_twophase_recover(), LockCheckConflicts(), log_status_format(), pg_stat_get_activity(), PostPrepare_Locks(), ProcKill(), SetupLockInTable(), TopoSort(), write_csvlog(), and write_jsonlog().

◆ lockGroupLink

dlist_node PGPROC::lockGroupLink

Definition at line 292 of file proc.h.

Referenced by BecomeLockGroupLeader(), BecomeLockGroupMember(), and ProcKill().

◆ lockGroupMembers

dlist_head PGPROC::lockGroupMembers

Definition at line 291 of file proc.h.

Referenced by BecomeLockGroupLeader(), BecomeLockGroupMember(), GetBlockerStatusData(), InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), and ProcKill().

◆ lwWaiting

uint8 PGPROC::lwWaiting

Definition at line 275 of file proc.h.

Referenced by BufferLockAcquire(), BufferLockDequeueSelf(), BufferLockQueueSelf(), BufferLockWakeup(), InitAuxiliaryProcess(), InitProcess(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockDequeueSelf(), LWLockQueueSelf(), LWLockUpdateVar(), LWLockWaitForVar(), LWLockWakeup(), and MarkAsPreparingGuts().

◆ lwWaitLink

proclist_node PGPROC::lwWaitLink

Definition at line 277 of file proc.h.

◆ lwWaitMode

uint8 PGPROC::lwWaitMode

Definition at line 276 of file proc.h.

Referenced by BufferLockQueueSelf(), BufferLockWakeup(), InitAuxiliaryProcess(), InitProcess(), LWLockQueueSelf(), LWLockUpdateVar(), LWLockWakeup(), and MarkAsPreparingGuts().

◆ lxid

LocalTransactionId PGPROC::lxid

Definition at line 223 of file proc.h.

Referenced by AbortTransaction(), AuxiliaryProcKill(), CommitTransaction(), exec_eval_simple_expr(), exec_simple_check_plan(), exec_stmt_call(), ExportSnapshot(), get_cast_hashentry(), GetLockStatusData(), GetSingleProcBlockerStatusData(), GetStableLatestTransactionId(), InitAuxiliaryProcess(), InitProcess(), lock_and_open_sequence(), log_status_format(), MarkAsPreparingGuts(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcArrayInstallImportedXmin(), ProcKill(), StartTransaction(), write_csvlog(), and write_jsonlog().

◆ myProcLocks

dlist_head PGPROC::myProcLocks[NUM_LOCK_PARTITIONS]

Definition at line 313 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), lock_twophase_recover(), LockReleaseAll(), MarkAsPreparingGuts(), PostPrepare_Locks(), ProcKill(), and SetupLockInTable().

◆ pendingRecoveryConflicts

pg_atomic_uint32 PGPROC::pendingRecoveryConflicts

Definition at line 262 of file proc.h.

Referenced by HandleRecoveryConflictInterrupt(), InitProcess(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcessInterrupts(), ProcessRecoveryConflictInterrupts(), report_recovery_conflict(), SignalRecoveryConflict(), SignalRecoveryConflictWithDatabase(), and SignalRecoveryConflictWithVirtualXID().

◆ pgxactoff

int PGPROC::pgxactoff

Definition at line 199 of file proc.h.

Referenced by GetNewTransactionId(), GetSnapshotData(), InitWalSender(), ProcArrayAdd(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcArrayInstallRestoredXmin(), ProcArrayRemove(), ReplicationSlotRelease(), set_indexsafe_procflags(), StartupDecodingContext(), TransactionIdIsInProgress(), vacuum_rel(), and XidCacheRemoveRunningXids().

◆ pid

int PGPROC::pid

Definition at line 189 of file proc.h.

Referenced by AuxiliaryPidGetProc(), AuxiliaryProcKill(), BackendPidGetProcWithLock(), BackendXidGetPid(), BecomeLockGroupMember(), CountDBBackends(), CountDBConnections(), CountOtherDBBackends(), CountUserBackends(), GetConflictingVirtualXIDs(), GetLeaderApplyWorkerPid(), GetLockStatusData(), GetSingleProcBlockerStatusData(), InitProcess(), log_status_format(), logicalrep_worker_stop_internal(), LogRecoveryConflict(), MarkAsPreparingGuts(), MinimumActiveBackends(), pg_stat_get_activity(), pg_stat_get_subscription(), ProcArrayRemove(), ProcKill(), ProcNumberGetProc(), ProcNumberGetTransactionIds(), SignalRecoveryConflict(), SignalRecoveryConflictWithDatabase(), SignalRecoveryConflictWithVirtualXID(), TerminateOtherDBBackends(), write_csvlog(), and write_jsonlog().

◆ procArrayGroupMember

bool PGPROC::procArrayGroupMember

Definition at line 342 of file proc.h.

Referenced by InitProcess(), and ProcArrayGroupClearXid().

◆ procArrayGroupMemberXid

TransactionId PGPROC::procArrayGroupMemberXid

Definition at line 350 of file proc.h.

Referenced by InitProcess(), and ProcArrayGroupClearXid().

◆ procArrayGroupNext

pg_atomic_uint32 PGPROC::procArrayGroupNext

Definition at line 344 of file proc.h.

Referenced by InitProcess(), InitProcGlobal(), and ProcArrayGroupClearXid().

◆ procgloballist

dlist_head* PGPROC::procgloballist

Definition at line 177 of file proc.h.

Referenced by InitProcess(), InitProcGlobal(), and ProcKill().

◆ procLatch

Latch PGPROC::procLatch

Definition at line 248 of file proc.h.

Referenced by AuxiliaryProcKill(), ConditionVariableBroadcast(), ConditionVariableSignal(), InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), logicalrep_worker_wakeup_ptr(), ProcKill(), ProcWakeup(), SwitchBackToLocalLatch(), SwitchToSharedLatch(), and SyncRepWakeQueue().

◆ procNumber

ProcNumber PGPROC::procNumber

Definition at line 218 of file proc.h.

Referenced by AuxiliaryProcKill(), ExportSnapshot(), GetLockStatusData(), GetSingleProcBlockerStatusData(), InitAuxiliaryProcess(), InitProcess(), InitRecoveryTransactionEnvironment(), log_status_format(), MarkAsPreparingGuts(), ProcArrayInstallImportedXmin(), ProcKill(), StartTransaction(), VirtualXactLock(), VirtualXactLockTableCleanup(), VirtualXactLockTableInsert(), write_csvlog(), and write_jsonlog().

◆ roleId

Oid PGPROC::roleId

Definition at line 194 of file proc.h.

Referenced by CountUserBackends(), InitAuxiliaryProcess(), InitProcess(), MarkAsPreparingGuts(), pg_signal_backend(), SetAuthenticatedUserId(), and TerminateOtherDBBackends().

◆ sem

PGSemaphore PGPROC::sem

Definition at line 250 of file proc.h.

Referenced by BufferLockAcquire(), BufferLockDequeueSelf(), BufferLockWakeup(), InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockDequeueSelf(), LWLockUpdateVar(), LWLockWaitForVar(), LWLockWakeup(), ProcArrayGroupClearXid(), and TransactionGroupUpdateXidStatus().

◆ statusFlags

uint8 PGPROC::statusFlags

Definition at line 202 of file proc.h.

Referenced by _brin_parallel_build_main(), _bt_parallel_build_main(), _gin_parallel_build_main(), FindLockCycleRecurseMember(), InitAuxiliaryProcess(), InitProcess(), InitWalSender(), MarkAsPreparingGuts(), parallel_vacuum_main(), ProcArrayAdd(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcArrayInstallRestoredXmin(), ReplicationSlotRelease(), set_indexsafe_procflags(), StartupDecodingContext(), and vacuum_rel().

◆ subxids

struct XidCache PGPROC::subxids

Definition at line 241 of file proc.h.

Referenced by GetNewTransactionId(), GetRunningTransactionData(), GetSnapshotData(), GXactLoadSubxactData(), TransactionIdIsInProgress(), TransactionIdSetPageStatus(), and XidCacheRemoveRunningXids().

◆ subxidStatus

XidCacheStatus PGPROC::subxidStatus

Definition at line 239 of file proc.h.

Referenced by consume_xids_common(), GetNewTransactionId(), GXactLoadSubxactData(), MarkAsPreparingGuts(), ProcArrayAdd(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcNumberGetTransactionIds(), TransactionIdSetPageStatus(), and XidCacheRemoveRunningXids().

◆ syncRepLinks

dlist_node PGPROC::syncRepLinks

Definition at line 335 of file proc.h.

Referenced by InitProcess(), SyncRepCancelWait(), SyncRepCleanupAtProcExit(), SyncRepQueueInsert(), SyncRepWaitForLSN(), and SyncRepWakeQueue().

◆ syncRepState

int PGPROC::syncRepState

Definition at line 334 of file proc.h.

Referenced by InitProcess(), SyncRepCancelWait(), SyncRepWaitForLSN(), and SyncRepWakeQueue().

◆ tempNamespaceId

Oid PGPROC::tempNamespaceId

Definition at line 196 of file proc.h.

Referenced by AtEOSubXact_Namespace(), AtEOXact_Namespace(), checkTempNamespaceStatus(), InitAuxiliaryProcess(), InitProcess(), InitTempTableNamespace(), and MarkAsPreparingGuts().

◆ [struct]

struct { ... } PGPROC::vxid

Referenced by AbortTransaction(), AuxiliaryProcKill(), CommitTransaction(), exec_eval_simple_expr(), exec_simple_check_plan(), exec_stmt_call(), ExportSnapshot(), get_cast_hashentry(), GetLockStatusData(), GetSingleProcBlockerStatusData(), GetStableLatestTransactionId(), InitAuxiliaryProcess(), InitProcess(), InitRecoveryTransactionEnvironment(), lock_and_open_sequence(), log_status_format(), MarkAsPreparingGuts(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcArrayInstallImportedXmin(), ProcKill(), StartTransaction(), VirtualXactLock(), VirtualXactLockTableCleanup(), VirtualXactLockTableInsert(), write_csvlog(), and write_jsonlog().

◆ wait_event_info

uint32 PGPROC::wait_event_info

Definition at line 370 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), pg_isolation_test_session_is_blocked(), pg_stat_get_activity(), pg_stat_get_backend_wait_event(), pg_stat_get_backend_wait_event_type(), and pgstat_report_activity().

◆ waitLink

dlist_node PGPROC::waitLink

Definition at line 297 of file proc.h.

Referenced by CheckDeadLock(), InitAuxiliaryProcess(), InitProcess(), JoinWaitQueue(), LockErrorCleanup(), MarkAsPreparingGuts(), ProcWakeup(), and RemoveFromWaitQueue().

◆ waitLock

LOCK* PGPROC::waitLock

Definition at line 296 of file proc.h.

Referenced by CheckDeadLock(), GetLockStatusData(), GetSingleProcBlockerStatusData(), InitAuxiliaryProcess(), InitProcess(), JoinWaitQueue(), MarkAsPreparingGuts(), MinimumActiveBackends(), ProcWakeup(), RemoveFromWaitQueue(), and TopoSort().

◆ waitLockMode

LOCKMODE PGPROC::waitLockMode

Definition at line 299 of file proc.h.

Referenced by FindLockCycleRecurseMember(), GetLockStatusData(), GetSingleProcBlockerStatusData(), JoinWaitQueue(), ProcLockWakeup(), and RemoveFromWaitQueue().

◆ waitLSN

XLogRecPtr PGPROC::waitLSN

Definition at line 333 of file proc.h.

Referenced by InitProcess(), SyncRepQueueInsert(), SyncRepWaitForLSN(), and SyncRepWakeQueue().

◆ waitProcLock

PROCLOCK* PGPROC::waitProcLock

Definition at line 298 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), JoinWaitQueue(), MarkAsPreparingGuts(), ProcLockWakeup(), ProcWakeup(), and RemoveFromWaitQueue().

◆ waitStart

pg_atomic_uint64 PGPROC::waitStart

Definition at line 303 of file proc.h.

Referenced by GetLockStatusData(), InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), MarkAsPreparingGuts(), ProcSleep(), ProcWakeup(), and ResolveRecoveryConflictWithLock().

◆ waitStatus

ProcWaitStatus PGPROC::waitStatus

Definition at line 306 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), JoinWaitQueue(), LockErrorCleanup(), MarkAsPreparingGuts(), ProcSleep(), ProcWakeup(), and RemoveFromWaitQueue().

◆ xid

TransactionId PGPROC::xid

Definition at line 229 of file proc.h.

Referenced by ComputeXidHorizons(), GetNewTransactionId(), GetRunningTransactionLocks(), GetSnapshotData(), InitAuxiliaryProcess(), InitProcess(), MarkAsPreparingGuts(), MinimumActiveBackends(), pg_prepared_xact(), ProcArrayAdd(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcArrayGroupClearXid(), ProcNumberGetTransactionIds(), set_indexsafe_procflags(), TransactionIdSetPageStatus(), and VirtualXactLock().

◆ xmin

TransactionId PGPROC::xmin

Definition at line 234 of file proc.h.

Referenced by AtEOXact_Snapshot(), ComputeXidHorizons(), DefineIndex(), ExecWaitStmt(), GetConflictingVirtualXIDs(), GetCurrentVirtualXIDs(), GetSnapshotData(), GetSnapshotDataReuse(), InitAuxiliaryProcess(), InitProcess(), InitWalSender(), MarkAsPreparingGuts(), PhysicalReplicationSlotNewXmin(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayEndTransactionInternal(), ProcArrayInstallImportedXmin(), ProcArrayInstallRestoredXmin(), ProcessStandbyHSFeedbackMessage(), ProcNumberGetTransactionIds(), set_indexsafe_procflags(), SnapBuildInitialSnapshot(), and SnapshotResetXmin().

The documentation for this struct was generated from the following file: