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Another round of cleanups for dynahash.c (maybe it's finally clean of

portability issues).  Caller-visible data structures are now allocated
on MAXALIGN boundaries, allowing safe use of datatypes wider than 'long'.
Rejigger hash_create API so that caller specifies size of key and
total size of entry, not size of key and size of rest of entry.
This simplifies life considerably since each number is just a sizeof(),
and padding issues etc. are taken care of automatically.
This commit is contained in:
Tom Lane
2001-10-01 05:36:17 +00:00
parent f58179669a
commit 5999e78fc4
17 changed files with 524 additions and 682 deletions

View File

@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/access/transam/xlogutils.c,v 1.18 2001/08/25 18:52:41 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/xlogutils.c,v 1.19 2001/10/01 05:36:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -228,9 +228,9 @@ _xl_init_rel_cache(void)
_xlrelarr[0].moreRecently = &(_xlrelarr[0]);
_xlrelarr[0].lessRecently = &(_xlrelarr[0]);
memset(&ctl, 0, (int) sizeof(ctl));
memset(&ctl, 0, sizeof(ctl));
ctl.keysize = sizeof(RelFileNode);
ctl.datasize = sizeof(XLogRelDesc *);
ctl.entrysize = sizeof(XLogRelCacheEntry);
ctl.hash = tag_hash;
_xlrelcache = hash_create(_XLOG_RELCACHESIZE, &ctl,
@ -249,7 +249,7 @@ _xl_remove_hash_entry(XLogRelDesc **edata, Datum dummy)
rdesc->moreRecently->lessRecently = rdesc->lessRecently;
hentry = (XLogRelCacheEntry *) hash_search(_xlrelcache,
(char *) &(rdesc->reldata.rd_node), HASH_REMOVE, &found);
(void *) &(rdesc->reldata.rd_node), HASH_REMOVE, &found);
if (hentry == NULL)
elog(STOP, "_xl_remove_hash_entry: can't delete from cache");
@ -321,7 +321,7 @@ XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode)
bool found;
hentry = (XLogRelCacheEntry *)
hash_search(_xlrelcache, (char *) &rnode, HASH_FIND, &found);
hash_search(_xlrelcache, (void *) &rnode, HASH_FIND, &found);
if (hentry == NULL)
elog(STOP, "XLogOpenRelation: error in cache");
@ -345,7 +345,7 @@ XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode)
res->reldata.rd_node = rnode;
hentry = (XLogRelCacheEntry *)
hash_search(_xlrelcache, (char *) &rnode, HASH_ENTER, &found);
hash_search(_xlrelcache, (void *) &rnode, HASH_ENTER, &found);
if (hentry == NULL)
elog(STOP, "XLogOpenRelation: can't insert into cache");