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Clean up and document the API for XLogOpenRelation and XLogReadBuffer.

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This commit doesn't make much functional change, but it does eliminate some
duplicated code --- for instance, PageIsNew tests are now done inside
XLogReadBuffer rather than by each caller.
The GIST xlog code still needs a lot of love, but I'll worry about that
separately.
This commit is contained in:
Tom Lane
2006-03-29 21:17:39 +00:00
parent 2154e1c11e
commit 6d61cdec07
14 changed files with 562 additions and 397 deletions
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17
src/backend/commands/dbcommands.c
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@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.178 2006/03/24 04:32:13 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.179 2006/03/29 21:17:38 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -671,7 +671,7 @@ dropdb(const char *dbname, bool missing_ok)
* is important to ensure that no remaining backend tries to write out a
* dirty buffer to the dead database later...
*/
DropBuffers(db_id);
DropDatabaseBuffers(db_id);
/*
* Also, clean out any entries in the shared free space map.
@ -1377,11 +1377,16 @@ dbase_redo(XLogRecPtr lsn, XLogRecord *record)
dst_path = GetDatabasePath(xlrec->db_id, xlrec->tablespace_id);
/*
* Drop pages for this database that are in the shared buffer cache
*/
DropBuffers(xlrec->db_id);
/* Drop pages for this database that are in the shared buffer cache */
DropDatabaseBuffers(xlrec->db_id);
/* Also, clean out any entries in the shared free space map */
FreeSpaceMapForgetDatabase(xlrec->db_id);
/* Clean out the xlog relcache too */
XLogDropDatabase(xlrec->db_id);
/* And remove the physical files */
if (!rmtree(dst_path, true))
ereport(WARNING,
(errmsg("could not remove database directory \"%s\"",