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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
| commit | 5e45211a64149b3c659b90ff2de6fa982a5a93ed (patch) | |
| tree | 739caf8c461053357daa9f162bef34516c7bf452 /src/include/access/subtrans.h | |
| parent | Initial commit. (diff) | |
| download | postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.tar.xz postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.zip | |
Adding upstream version 15.5.upstream/15.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/access/subtrans.h')
| -rw-r--r-- | src/include/access/subtrans.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/include/access/subtrans.h b/src/include/access/subtrans.h new file mode 100644 index 0000000..f94e116 --- /dev/null +++ b/src/include/access/subtrans.h @@ -0,0 +1,29 @@ +/* + * subtrans.h + * + * PostgreSQL subtransaction-log manager + * + * Portions Copyright (c) 1996-2022, 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); +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 CheckPointSUBTRANS(void); +extern void ExtendSUBTRANS(TransactionId newestXact); +extern void TruncateSUBTRANS(TransactionId oldestXact); + +#endif /* SUBTRANS_H */ |