src/include/access/subtrans.h

   1 /*
   2  * subtrans.h
   3  *
   4  * PostgreSQL subtransaction-log manager
   5  *
   6  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/access/subtrans.h
  10  */
  11 #ifndef SUBTRANS_H
  12 #define SUBTRANS_H
  13
  14 extern void SubTransSetParent(TransactionId xid, TransactionId parent);
  15 extern TransactionId SubTransGetParent(TransactionId xid);
  16 extern TransactionId SubTransGetTopmostTransaction(TransactionId xid);
  17
  18 extern Size SUBTRANSShmemSize(void);
  19 extern void SUBTRANSShmemInit(void);
  20 extern void BootStrapSUBTRANS(void);
  21 extern void StartupSUBTRANS(TransactionId oldestActiveXID);
  22 extern void CheckPointSUBTRANS(void);
  23 extern void ExtendSUBTRANS(TransactionId newestXact);
  24 extern void TruncateSUBTRANS(TransactionId oldestXact);
  25
  26 #endif                                                  /* SUBTRANS_H */