Viewing file:  subtrans.h (973 B) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* subtrans.h
*
* PostgreSQL subtransaction-log manager
*
* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/access/subtrans.h
*/
#ifndef SUBTRANS_H
#define SUBTRANS_H
/* Number of SLRU buffers to use for subtrans */
#define NUM_SUBTRANS_BUFFERS 32
extern void SubTransSetParent(TransactionId xid, TransactionId parent, bool overwriteOK);
extern TransactionId SubTransGetParent(TransactionId xid);
extern TransactionId SubTransGetTopmostTransaction(TransactionId xid);
extern Size SUBTRANSShmemSize(void);
extern void SUBTRANSShmemInit(void);
extern void BootStrapSUBTRANS(void);
extern void StartupSUBTRANS(TransactionId oldestActiveXID);
extern void ShutdownSUBTRANS(void);
extern void CheckPointSUBTRANS(void);
extern void ExtendSUBTRANS(TransactionId newestXact);
extern void TruncateSUBTRANS(TransactionId oldestXact);
#endif /* SUBTRANS_H */
|