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Re-pgindent catcache.c after previous commit.
Discussion: https://postgr.es/m/1393953.1698353013@sss.pgh.pa.us Discussion: https://postgr.es/m/CAGjhLkOoBEC9mLsnB42d3CO1vcMx71MLSEuigeABbQ8oRdA6gw@mail.gmail.com
This commit is contained in:
Tom Lane
parent
db122d426a
commit
7ceeb57bad
196
src/backend/utils/cache/catcache.c
vendored
196
src/backend/utils/cache/catcache.c
vendored
@ -1369,34 +1369,34 @@ SearchCatCacheMiss(CatCache *cache,
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cur_skey[2].sk_argument = v3;
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cur_skey[3].sk_argument = v4;
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scandesc = systable_beginscan(relation,
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cache->cc_indexoid,
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IndexScanOK(cache, cur_skey),
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NULL,
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nkeys,
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cur_skey);
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scandesc = systable_beginscan(relation,
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cache->cc_indexoid,
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IndexScanOK(cache, cur_skey),
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NULL,
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nkeys,
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cur_skey);
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ct = NULL;
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stale = false;
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ct = NULL;
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stale = false;
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while (HeapTupleIsValid(ntp = systable_getnext(scandesc)))
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{
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ct = CatalogCacheCreateEntry(cache, ntp, scandesc, NULL,
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hashValue, hashIndex);
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/* upon failure, we must start the scan over */
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if (ct == NULL)
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while (HeapTupleIsValid(ntp = systable_getnext(scandesc)))
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{
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stale = true;
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break;
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ct = CatalogCacheCreateEntry(cache, ntp, scandesc, NULL,
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hashValue, hashIndex);
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/* upon failure, we must start the scan over */
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if (ct == NULL)
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{
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stale = true;
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break;
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}
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/* immediately set the refcount to 1 */
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ResourceOwnerEnlargeCatCacheRefs(CurrentResourceOwner);
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ct->refcount++;
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ResourceOwnerRememberCatCacheRef(CurrentResourceOwner, &ct->tuple);
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break; /* assume only one match */
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}
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/* immediately set the refcount to 1 */
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ResourceOwnerEnlargeCatCacheRefs(CurrentResourceOwner);
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ct->refcount++;
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ResourceOwnerRememberCatCacheRef(CurrentResourceOwner, &ct->tuple);
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break; /* assume only one match */
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}
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systable_endscan(scandesc);
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systable_endscan(scandesc);
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} while (stale);
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table_close(relation, AccessShareLock);
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@ -1656,95 +1656,95 @@ SearchCatCacheList(CatCache *cache,
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cur_skey[2].sk_argument = v3;
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cur_skey[3].sk_argument = v4;
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scandesc = systable_beginscan(relation,
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cache->cc_indexoid,
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IndexScanOK(cache, cur_skey),
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NULL,
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nkeys,
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cur_skey);
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scandesc = systable_beginscan(relation,
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cache->cc_indexoid,
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IndexScanOK(cache, cur_skey),
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NULL,
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nkeys,
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cur_skey);
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/* The list will be ordered iff we are doing an index scan */
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ordered = (scandesc->irel != NULL);
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/* The list will be ordered iff we are doing an index scan */
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ordered = (scandesc->irel != NULL);
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stale = false;
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stale = false;
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while (HeapTupleIsValid(ntp = systable_getnext(scandesc)))
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{
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uint32 hashValue;
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Index hashIndex;
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bool found = false;
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dlist_head *bucket;
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/*
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* See if there's an entry for this tuple already.
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*/
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ct = NULL;
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hashValue = CatalogCacheComputeTupleHashValue(cache, cache->cc_nkeys, ntp);
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hashIndex = HASH_INDEX(hashValue, cache->cc_nbuckets);
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bucket = &cache->cc_bucket[hashIndex];
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dlist_foreach(iter, bucket)
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while (HeapTupleIsValid(ntp = systable_getnext(scandesc)))
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{
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ct = dlist_container(CatCTup, cache_elem, iter.cur);
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if (ct->dead || ct->negative)
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continue; /* ignore dead and negative entries */
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if (ct->hash_value != hashValue)
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continue; /* quickly skip entry if wrong hash val */
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if (!ItemPointerEquals(&(ct->tuple.t_self), &(ntp->t_self)))
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continue; /* not same tuple */
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uint32 hashValue;
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Index hashIndex;
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bool found = false;
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dlist_head *bucket;
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/*
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* Found a match, but can't use it if it belongs to another
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* list already
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* See if there's an entry for this tuple already.
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*/
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if (ct->c_list)
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continue;
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ct = NULL;
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hashValue = CatalogCacheComputeTupleHashValue(cache, cache->cc_nkeys, ntp);
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hashIndex = HASH_INDEX(hashValue, cache->cc_nbuckets);
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found = true;
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break; /* A-OK */
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}
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if (!found)
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{
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/* We didn't find a usable entry, so make a new one */
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ct = CatalogCacheCreateEntry(cache, ntp, scandesc, NULL,
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hashValue, hashIndex);
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/* upon failure, we must start the scan over */
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if (ct == NULL)
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bucket = &cache->cc_bucket[hashIndex];
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dlist_foreach(iter, bucket)
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{
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ct = dlist_container(CatCTup, cache_elem, iter.cur);
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if (ct->dead || ct->negative)
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continue; /* ignore dead and negative entries */
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if (ct->hash_value != hashValue)
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continue; /* quickly skip entry if wrong hash val */
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if (!ItemPointerEquals(&(ct->tuple.t_self), &(ntp->t_self)))
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continue; /* not same tuple */
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/*
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* Release refcounts on any items we already had. We dare
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* not try to free them if they're now unreferenced, since
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* an error while doing that would result in the PG_CATCH
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* below doing extra refcount decrements. Besides, we'll
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* likely re-adopt those items in the next iteration, so
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* it's not worth complicating matters to try to get rid
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* of them.
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* Found a match, but can't use it if it belongs to
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* another list already
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*/
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foreach(ctlist_item, ctlist)
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{
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ct = (CatCTup *) lfirst(ctlist_item);
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Assert(ct->c_list == NULL);
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Assert(ct->refcount > 0);
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ct->refcount--;
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}
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/* Reset ctlist in preparation for new try */
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ctlist = NIL;
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stale = true;
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break;
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if (ct->c_list)
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continue;
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found = true;
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break; /* A-OK */
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}
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if (!found)
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{
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/* We didn't find a usable entry, so make a new one */
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ct = CatalogCacheCreateEntry(cache, ntp, scandesc, NULL,
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hashValue, hashIndex);
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/* upon failure, we must start the scan over */
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if (ct == NULL)
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{
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/*
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* Release refcounts on any items we already had. We
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* dare not try to free them if they're now
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* unreferenced, since an error while doing that would
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* result in the PG_CATCH below doing extra refcount
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* decrements. Besides, we'll likely re-adopt those
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* items in the next iteration, so it's not worth
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* complicating matters to try to get rid of them.
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*/
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foreach(ctlist_item, ctlist)
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{
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ct = (CatCTup *) lfirst(ctlist_item);
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Assert(ct->c_list == NULL);
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Assert(ct->refcount > 0);
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ct->refcount--;
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}
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/* Reset ctlist in preparation for new try */
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ctlist = NIL;
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stale = true;
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break;
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}
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}
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/* Careful here: add entry to ctlist, then bump its refcount */
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/* This way leaves state correct if lappend runs out of memory */
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ctlist = lappend(ctlist, ct);
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ct->refcount++;
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}
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/* Careful here: add entry to ctlist, then bump its refcount */
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/* This way leaves state correct if lappend runs out of memory */
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ctlist = lappend(ctlist, ct);
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ct->refcount++;
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}
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systable_endscan(scandesc);
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systable_endscan(scandesc);
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} while (stale);
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table_close(relation, AccessShareLock);
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