PGPROC Struct Reference

#include <proc.h>

Data Fields
SHM_QUEUE	links
PGSemaphoreData	sem
int	waitStatus
Latch	procLatch
LocalTransactionId	lxid
int	pid
int	pgprocno
BackendId	backendId
Oid	databaseId
Oid	roleId
bool	recoveryConflictPending
bool	lwWaiting
uint8	lwWaitMode
struct PGPROC *	lwWaitLink
LOCK *	waitLock
PROCLOCK *	waitProcLock
LOCKMODE	waitLockMode
LOCKMASK	heldLocks
XLogRecPtr	waitLSN
int	syncRepState
SHM_QUEUE	syncRepLinks
SHM_QUEUE	myProcLocks [NUM_LOCK_PARTITIONS]
struct XidCache	subxids
LWLockId	backendLock
uint64	fpLockBits
Oid	fpRelId [FP_LOCK_SLOTS_PER_BACKEND]
bool	fpVXIDLock
LocalTransactionId	fpLocalTransactionId

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Detailed Description

Definition at line 73 of file proc.h.

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Field Documentation

BackendId PGPROC::backendId

Definition at line 90 of file proc.h.

Referenced by GetLockStatusData(), InitAuxiliaryProcess(), InitProcess(), log_line_prefix(), MarkAsPreparing(), SharedInvalBackendInit(), StartTransaction(), VirtualXactLock(), VirtualXactLockTableCleanup(), VirtualXactLockTableInsert(), and write_csvlog().

LWLockId PGPROC::backendLock

Definition at line 134 of file proc.h.

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

Oid PGPROC::databaseId

Definition at line 91 of file proc.h.

Referenced by CancelDBBackends(), CountDBBackends(), CountOtherDBBackends(), FastPathTransferRelationLocks(), GetConflictingVirtualXIDs(), GetCurrentVirtualXIDs(), GetLockConflicts(), GetLockStatusData(), GetOldestXmin(), InitAuxiliaryProcess(), InitPostgres(), InitProcess(), LockGXact(), MarkAsPreparing(), pg_prepared_xact(), ProcArrayInstallImportedXmin(), and StartPrepare().

LocalTransactionId PGPROC::fpLocalTransactionId

Definition at line 140 of file proc.h.

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

uint64 PGPROC::fpLockBits

Definition at line 137 of file proc.h.

Oid PGPROC::fpRelId[FP_LOCK_SLOTS_PER_BACKEND]

Definition at line 138 of file proc.h.

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

bool PGPROC::fpVXIDLock

Definition at line 139 of file proc.h.

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

LOCKMASK PGPROC::heldLocks

Definition at line 111 of file proc.h.

Referenced by LockAcquireExtended(), and ProcSleep().

SHM_QUEUE PGPROC::links

Definition at line 76 of file proc.h.

Referenced by CheckDeadLock(), DeadLockCheck(), FindLockCycleRecurse(), HaveNFreeProcs(), InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), LockErrorCleanup(), MarkAsPreparing(), ProcKill(), ProcLockWakeup(), ProcSleep(), ProcWakeup(), RemoveFromWaitQueue(), and TopoSort().

bool PGPROC::lwWaiting

Definition at line 102 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockRelease(), and MarkAsPreparing().

struct PGPROC* PGPROC::lwWaitLink

Definition at line 104 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockRelease(), and MarkAsPreparing().

uint8 PGPROC::lwWaitMode

Definition at line 103 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockRelease(), and MarkAsPreparing().

LocalTransactionId PGPROC::lxid

Definition at line 83 of file proc.h.

Referenced by AbortTransaction(), CommitTransaction(), exec_eval_simple_expr(), fmgr_sql(), GetLockStatusData(), GetStableLatestTransactionId(), init_sql_fcache(), InitAuxiliaryProcess(), InitProcess(), log_line_prefix(), MarkAsPreparing(), open_share_lock(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), StartTransaction(), and write_csvlog().

SHM_QUEUE PGPROC::myProcLocks[NUM_LOCK_PARTITIONS]

Definition at line 129 of file proc.h.

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

int PGPROC::pgprocno

Definition at line 87 of file proc.h.

Referenced by FindLockCycleRecurse(), GetRunningTransactionLocks(), InitAuxiliaryProcess(), InitProcess(), InitProcGlobal(), MarkAsPreparing(), ProcArrayAdd(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), ProcArrayRemove(), ProcSleep(), and TwoPhaseShmemInit().

int PGPROC::pid

Definition at line 86 of file proc.h.

Referenced by autovac_balance_cost(), AuxiliaryProcKill(), BackendPidGetProc(), BackendXidGetPid(), CancelDBBackends(), CancelVirtualTransaction(), CountDBBackends(), CountOtherDBBackends(), CountUserBackends(), FindLockCycleRecurse(), GetConflictingVirtualXIDs(), GetLockStatusData(), InitAuxiliaryProcess(), InitProcess(), MarkAsPreparing(), MinimumActiveBackends(), ProcArrayRemove(), ProcSleep(), RememberSimpleDeadLock(), and TransactionIdIsActive().

Latch PGPROC::procLatch

Definition at line 81 of file proc.h.

Referenced by AutoVacLauncherMain(), AuxiliaryProcKill(), avl_sighup_handler(), avl_sigterm_handler(), avl_sigusr2_handler(), BackgroundWriterMain(), BgSigHupHandler(), CheckpointerMain(), ChkptSigHupHandler(), die(), handle_sig_alarm(), InitAuxiliaryProcess(), InitProcess(), ProcKill(), ReqCheckpointHandler(), ReqShutdownHandler(), SigHupHandler(), StatementCancelHandler(), SyncRepWaitForLSN(), SyncRepWakeQueue(), WalShutdownHandler(), WalSigHupHandler(), WalWriterMain(), worker_spi_main(), worker_spi_sighup(), and worker_spi_sigterm().

bool PGPROC::recoveryConflictPending

Definition at line 99 of file proc.h.

Referenced by CancelDBBackends(), CancelVirtualTransaction(), errdetail_abort(), InitProcess(), ProcArrayClearTransaction(), ProcArrayEndTransaction(), and RecoveryConflictInterrupt().

Oid PGPROC::roleId

Definition at line 92 of file proc.h.

Referenced by CountUserBackends(), InitAuxiliaryProcess(), InitializeSessionUserId(), InitProcess(), MarkAsPreparing(), and pg_signal_backend().

PGSemaphoreData PGPROC::sem

Definition at line 78 of file proc.h.

Referenced by CheckDeadLock(), InitAuxiliaryProcess(), InitProcess(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockRelease(), ProcSendSignal(), ProcSleep(), ProcWaitForSignal(), and ProcWakeup().

struct XidCache PGPROC::subxids

Definition at line 131 of file proc.h.

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

SHM_QUEUE PGPROC::syncRepLinks

Definition at line 122 of file proc.h.

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

int PGPROC::syncRepState

Definition at line 121 of file proc.h.

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

LOCK* PGPROC::waitLock

Definition at line 108 of file proc.h.

Referenced by CheckDeadLock(), ExpandConstraints(), FindLockCycleRecurse(), GetLockStatusData(), InitAuxiliaryProcess(), InitProcess(), MarkAsPreparing(), MinimumActiveBackends(), ProcSleep(), ProcWakeup(), RememberSimpleDeadLock(), RemoveFromWaitQueue(), and TopoSort().

LOCKMODE PGPROC::waitLockMode

Definition at line 110 of file proc.h.

Referenced by FindLockCycleRecurse(), GetLockStatusData(), ProcLockWakeup(), ProcSleep(), RememberSimpleDeadLock(), and RemoveFromWaitQueue().

XLogRecPtr PGPROC::waitLSN

Definition at line 120 of file proc.h.

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

PROCLOCK* PGPROC::waitProcLock

Definition at line 109 of file proc.h.

Referenced by InitAuxiliaryProcess(), InitProcess(), MarkAsPreparing(), ProcLockWakeup(), ProcSleep(), ProcWakeup(), and RemoveFromWaitQueue().

int PGPROC::waitStatus

Definition at line 79 of file proc.h.

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

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

• src/include/storage/proc.h