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Two-phase commit. Original patch by Heikki Linnakangas, with additional

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hacking by Alvaro Herrera and Tom Lane.
This commit is contained in:
Tom Lane
2005-06-17 22:32:51 +00:00
parent 5495575903
commit d0a89683a3
61 changed files with 4454 additions and 439 deletions
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17
src/include/storage/lock.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/storage/lock.h,v 1.88 2005/06/14 22:15:33 tgl Exp $
* $PostgreSQL: pgsql/src/include/storage/lock.h,v 1.89 2005/06/17 22:32:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -370,7 +370,7 @@ extern void InitLocks(void);
extern LockMethod GetLocksMethodTable(LOCK *lock);
extern LOCKMETHODID LockMethodTableInit(const char *tabName,
const LOCKMASK *conflictsP,
int numModes, int maxBackends);
int numModes);
extern LOCKMETHODID LockMethodTableRename(LOCKMETHODID lockmethodid);
extern LockAcquireResult LockAcquire(LOCKMETHODID lockmethodid,
LOCKTAG *locktag,
@@ -383,13 +383,15 @@ extern bool LockRelease(LOCKMETHODID lockmethodid, LOCKTAG *locktag,
extern void LockReleaseAll(LOCKMETHODID lockmethodid, bool allLocks);
extern void LockReleaseCurrentOwner(void);
extern void LockReassignCurrentOwner(void);
extern void AtPrepare_Locks(void);
extern void PostPrepare_Locks(TransactionId xid);
extern int LockCheckConflicts(LockMethod lockMethodTable,
LOCKMODE lockmode,
LOCK *lock, PROCLOCK *proclock, PGPROC *proc);
extern void GrantLock(LOCK *lock, PROCLOCK *proclock, LOCKMODE lockmode);
extern void GrantAwaitedLock(void);
extern void RemoveFromWaitQueue(PGPROC *proc);
extern int LockShmemSize(int maxBackends);
extern int LockShmemSize(void);
extern bool DeadLockCheck(PGPROC *proc);
extern void DeadLockReport(void);
extern void RememberSimpleDeadLock(PGPROC *proc1,
@@ -400,8 +402,15 @@ extern void InitDeadLockChecking(void);
extern LockData *GetLockStatusData(void);
extern const char *GetLockmodeName(LOCKMODE mode);
extern void lock_twophase_recover(TransactionId xid, uint16 info,
void *recdata, uint32 len);
extern void lock_twophase_postcommit(TransactionId xid, uint16 info,
void *recdata, uint32 len);
extern void lock_twophase_postabort(TransactionId xid, uint16 info,
void *recdata, uint32 len);
#ifdef LOCK_DEBUG
extern void DumpLocks(void);
extern void DumpLocks(PGPROC *proc);
extern void DumpAllLocks(void);
#endif