diff options
| author | Tom Lane | 2001-02-26 00:50:08 +0000 |
|---|---|---|
| committer | Tom Lane | 2001-02-26 00:50:08 +0000 |
| commit | 9c9936587c6a9aeb8b425a499cf73e5e7af38ddd (patch) | |
| tree | f1d7328907a9ffb8a9319b689a9bb40f7e1d0313 /src/include/storage/sinval.h | |
| parent | 60774e821060dd6d6395504d4ccda107d2a71a42 (diff) | |
Implement COMMIT_SIBLINGS parameter to allow pre-commit delay to occur
only if at least N other backends currently have open transactions. This
is not a great deal of intelligence about whether a delay might be
profitable ... but it beats no intelligence at all. Note that the default
COMMIT_DELAY is still zero --- this new code does nothing unless that
setting is changed.
Also, mark ENABLEFSYNC as a system-wide setting. It's no longer safe to
allow that to be set per-backend, since we may be relying on some other
backend's fsync to have synced the WAL log.
Diffstat (limited to 'src/include/storage/sinval.h')
| -rw-r--r-- | src/include/storage/sinval.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/include/storage/sinval.h b/src/include/storage/sinval.h index 1b04bcec900..93a10e72feb 100644 --- a/src/include/storage/sinval.h +++ b/src/include/storage/sinval.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: sinval.h,v 1.17 2001/01/24 19:43:28 momjian Exp $ + * $Id: sinval.h,v 1.18 2001/02/26 00:50:08 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -30,6 +30,6 @@ extern void InvalidateSharedInvalid(void (*invalFunction) (), extern bool DatabaseHasActiveBackends(Oid databaseId, bool ignoreMyself); extern bool TransactionIdIsInProgress(TransactionId xid); extern void GetXmaxRecent(TransactionId *XmaxRecent); - +extern int CountActiveBackends(void); #endif /* SINVAL_H */ |