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Name	Size	Permission
backendid.h	730 B	-rw-r--r--
barrier.h	6.6 KB	-rw-r--r--
block.h	3.21 KB	-rw-r--r--
buf.h	1.06 KB	-rw-r--r--
buf_internals.h	7.79 KB	-rw-r--r--
buffile.h	1.67 KB	-rw-r--r--
bufmgr.h	7.2 KB	-rw-r--r--
bufpage.h	12.91 KB	-rw-r--r--
copydir.h	561 B	-rw-r--r--
fd.h	3.56 KB	-rw-r--r--
freespace.h	1.23 KB	-rw-r--r--
fsm_internals.h	2.24 KB	-rw-r--r--
indexfsm.h	795 B	-rw-r--r--
ipc.h	2.54 KB	-rw-r--r--
item.h	469 B	-rw-r--r--
itemid.h	4.24 KB	-rw-r--r--
itemptr.h	3.72 KB	-rw-r--r--
large_object.h	2.89 KB	-rw-r--r--
latch.h	5.28 KB	-rw-r--r--
lmgr.h	3.22 KB	-rw-r--r--
lock.h	21.16 KB	-rw-r--r--
lwlock.h	3.58 KB	-rw-r--r--
off.h	1.58 KB	-rw-r--r--
pg_sema.h	2.41 KB	-rw-r--r--
pg_shmem.h	1.95 KB	-rw-r--r--
pmsignal.h	2.03 KB	-rw-r--r--
pos.h	1.56 KB	-rw-r--r--
predicate.h	2.56 KB	-rw-r--r--
predicate_internals.h	16.98 KB	-rw-r--r--
proc.h	9.58 KB	-rw-r--r--
procarray.h	2.96 KB	-rw-r--r--
procsignal.h	1.76 KB	-rw-r--r--
reinit.h	588 B	-rw-r--r--
relfilenode.h	4.31 KB	-rw-r--r--
s_lock.h	28 KB	-rw-r--r--
shmem.h	2.63 KB	-rw-r--r--
sinval.h	4.97 KB	-rw-r--r--
sinvaladt.h	1.49 KB	-rw-r--r--
smgr.h	5.67 KB	-rw-r--r--
spin.h	2.71 KB	-rw-r--r--
standby.h	3.97 KB	-rw-r--r--

Code Editor : predicate.h

/*-------------------------------------------------------------------------
 *
 * predicate.h
 *	  POSTGRES public predicate locking definitions.
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/storage/predicate.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef PREDICATE_H
#define PREDICATE_H

#include "utils/relcache.h"
#include "utils/snapshot.h"

/*
 * GUC variables
 */
extern int	max_predicate_locks_per_xact;

/* Number of SLRU buffers to use for predicate locking */
#define NUM_OLDSERXID_BUFFERS	16

/*
 * function prototypes
 */

/* housekeeping for shared memory predicate lock structures */
extern void InitPredicateLocks(void);
extern Size PredicateLockShmemSize(void);

extern void CheckPointPredicate(void);

/* predicate lock reporting */
extern bool PageIsPredicateLocked(Relation relation, BlockNumber blkno);

/* predicate lock maintenance */
extern Snapshot GetSerializableTransactionSnapshot(Snapshot snapshot);
extern void SetSerializableTransactionSnapshot(Snapshot snapshot,
								   TransactionId sourcexid);
extern void RegisterPredicateLockingXid(TransactionId xid);
extern void PredicateLockRelation(Relation relation, Snapshot snapshot);
extern void PredicateLockPage(Relation relation, BlockNumber blkno, Snapshot snapshot);
extern void PredicateLockTuple(Relation relation, HeapTuple tuple, Snapshot snapshot);
extern void PredicateLockPageSplit(Relation relation, BlockNumber oldblkno, BlockNumber newblkno);
extern void PredicateLockPageCombine(Relation relation, BlockNumber oldblkno, BlockNumber newblkno);
extern void TransferPredicateLocksToHeapRelation(Relation relation);
extern void ReleasePredicateLocks(bool isCommit);

/* conflict detection (may also trigger rollback) */
extern void CheckForSerializableConflictOut(bool valid, Relation relation, HeapTuple tuple,
								Buffer buffer, Snapshot snapshot);
extern void CheckForSerializableConflictIn(Relation relation, HeapTuple tuple, Buffer buffer);
extern void CheckTableForSerializableConflictIn(Relation relation);

/* final rollback checking */
extern void PreCommit_CheckForSerializationFailure(void);

/* two-phase commit support */
extern void AtPrepare_PredicateLocks(void);
extern void PostPrepare_PredicateLocks(TransactionId xid);
extern void PredicateLockTwoPhaseFinish(TransactionId xid, bool isCommit);
extern void predicatelock_twophase_recover(TransactionId xid, uint16 info,
							   void *recdata, uint32 len);

#endif   /* PREDICATE_H */

${this.title}

Code Editor : predicate.h