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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2004-08-01 17:32:22 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2004-08-01 17:32:22 +0000 |
| commit | efcaf1e868d8399d932e68b8b248bcbd089b2d6b (patch) | |
| tree | c6235945f73faab427498dd8662efab5cf2fe5fd /src/backend/utils/init | |
| parent | 9d9cdf82a404f3e2a2d82cefc2c35ded55bb3b2e (diff) | |
| download | postgresql-efcaf1e868d8399d932e68b8b248bcbd089b2d6b.tar.gz | |
Some mop-up work for savepoints (nested transactions). Store a small
number of active subtransaction XIDs in each backend's PGPROC entry,
and use this to avoid expensive probes into pg_subtrans during
TransactionIdIsInProgress. Extend EOXactCallback API to allow add-on
modules to get control at subxact start/end. (This is deliberately
not compatible with the former API, since any uses of that API probably
need manual review anyway.) Add basic reference documentation for
SAVEPOINT and related commands. Minor other cleanups to check off some
of the open issues for subtransactions.
Alvaro Herrera and Tom Lane.
Diffstat (limited to 'src/backend/utils/init')
| -rw-r--r-- | src/backend/utils/init/miscinit.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c index 2ae41c013c..e5e21e8719 100644 --- a/src/backend/utils/init/miscinit.c +++ b/src/backend/utils/init/miscinit.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.129 2004/07/12 00:09:06 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.130 2004/08/01 17:32:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -115,19 +115,29 @@ ReindexIsProcessingIndex(Oid indexOid) /* * SetReindexProcessing * Set flag that specified heap/index are being reindexed. - * Pass InvalidOid to indicate that reindexing is not active. */ void SetReindexProcessing(Oid heapOid, Oid indexOid) { - /* Args should be both, or neither, InvalidOid */ - Assert((heapOid == InvalidOid) == (indexOid == InvalidOid)); + Assert(OidIsValid(heapOid) && OidIsValid(indexOid)); /* Reindexing is not re-entrant. */ - Assert(indexOid == InvalidOid || currentlyReindexedIndex == InvalidOid); + if (OidIsValid(currentlyReindexedIndex)) + elog(ERROR, "cannot reindex while reindexing"); currentlyReindexedHeap = heapOid; currentlyReindexedIndex = indexOid; } +/* + * ResetReindexProcessing + * Unset reindexing status. + */ +void +ResetReindexProcessing(void) +{ + currentlyReindexedHeap = InvalidOid; + currentlyReindexedIndex = InvalidOid; +} + /* ---------------------------------------------------------------- * database path / name support stuff * ---------------------------------------------------------------- |