2004-07-01 02:52:04 +02:00
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/*
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* subtrans.h
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*
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2004-08-24 01:22:45 +02:00
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* PostgreSQL subtransaction-log manager
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2004-07-01 02:52:04 +02:00
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*
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2017-01-03 19:48:53 +01:00
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* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
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2004-07-01 02:52:04 +02:00
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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2010-09-20 22:08:53 +02:00
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* src/include/access/subtrans.h
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2004-07-01 02:52:04 +02:00
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*/
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#ifndef SUBTRANS_H
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#define SUBTRANS_H
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2005-12-07 00:08:34 +01:00
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/* Number of SLRU buffers to use for subtrans */
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#define NUM_SUBTRANS_BUFFERS 32
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2017-04-27 14:41:22 +02:00
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extern void SubTransSetParent(TransactionId xid, TransactionId parent);
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2004-07-01 02:52:04 +02:00
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extern TransactionId SubTransGetParent(TransactionId xid);
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extern TransactionId SubTransGetTopmostTransaction(TransactionId xid);
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2005-08-21 01:26:37 +02:00
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extern Size SUBTRANSShmemSize(void);
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2004-07-01 02:52:04 +02:00
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extern void SUBTRANSShmemInit(void);
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extern void BootStrapSUBTRANS(void);
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2005-06-18 00:32:51 +02:00
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extern void StartupSUBTRANS(TransactionId oldestActiveXID);
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2004-07-01 02:52:04 +02:00
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extern void ShutdownSUBTRANS(void);
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extern void CheckPointSUBTRANS(void);
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extern void ExtendSUBTRANS(TransactionId newestXact);
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extern void TruncateSUBTRANS(TransactionId oldestXact);
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#endif /* SUBTRANS_H */
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