diff options
Diffstat (limited to 'src/include/storage/smgr.h')
| -rw-r--r-- | src/include/storage/smgr.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/include/storage/smgr.h b/src/include/storage/smgr.h index 92b9198d542..9eccf7671ed 100644 --- a/src/include/storage/smgr.h +++ b/src/include/storage/smgr.h @@ -33,6 +33,9 @@ * without having to make the smgr explicitly aware of relcache. There * can't be more than one "owner" pointer per SMgrRelation, but that's * all we need. + * + * SMgrRelations that do not have an "owner" are considered to be transient, + * and are deleted at end of transaction. */ typedef struct SMgrRelationData { @@ -63,6 +66,9 @@ typedef struct SMgrRelationData /* for md.c; NULL for forks that are not open */ struct _MdfdVec *md_fd[MAX_FORKNUM + 1]; + + /* if unowned, list link in list of all unowned SMgrRelations */ + struct SMgrRelationData *next_unowned_reln; } SMgrRelationData; typedef SMgrRelationData *SMgrRelation; @@ -95,6 +101,7 @@ extern void smgrimmedsync(SMgrRelation reln, ForkNumber forknum); extern void smgrpreckpt(void); extern void smgrsync(void); extern void smgrpostckpt(void); +extern void AtEOXact_SMgr(void); /* internals: move me elsewhere -- ay 7/94 */ |