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Code Issues Releases Wiki Activity

rename 'rbtiterator' and similar names in qpcache

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when the QP cache was adapted from the RBT database, some names
weren't changed. this could be confusing, so let's change them now.
also, we no longer need to include rbt.h.
This commit is contained in:
Evan Hunt
2024-09-13 19:26:54 -07:00
parent 377831a290
commit 5a444838db
1 changed files with 33 additions and 39 deletions
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72
lib/dns/qpcache.c
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@@ -48,7 +48,6 @@
#include <dns/masterdump.h>
#include <dns/nsec.h>
#include <dns/qp.h>
#include <dns/rbt.h>
#include <dns/rdata.h>
#include <dns/rdataset.h>
#include <dns/rdatasetiter.h>
@@ -112,11 +111,10 @@
#define ACTIVE(header, now) \
(((header)->ttl > (now)) || ((header)->ttl == (now) && ZEROTTL(header)))
#define EXPIREDOK(rbtiterator) \
(((rbtiterator)->common.options & DNS_DB_EXPIREDOK) != 0)
#define EXPIREDOK(iterator) \
(((iterator)->common.options & DNS_DB_EXPIREDOK) != 0)
#define STALEOK(rbtiterator) \
(((rbtiterator)->common.options & DNS_DB_STALEOK) != 0)
#define STALEOK(iterator) (((iterator)->common.options & DNS_DB_STALEOK) != 0)
#define KEEPSTALE(qpdb) ((qpdb)->common.serve_stale_ttl > 0)
@@ -159,8 +157,7 @@
#define DNS_QPDB_EXPIRE_TTL_COUNT 10
/*%
* This is the structure that is used for each node in the qp trie of
* trees. For now it is a copy of the dns_rbtnode structure.
* This is the structure that is used for each node in the qp trie of trees.
*/
typedef struct qpcnode qpcnode_t;
struct qpcnode {
@@ -3766,20 +3763,19 @@ dns__qpcache_create(isc_mem_t *mctx, const dns_name_t *origin,
static void
rdatasetiter_destroy(dns_rdatasetiter_t **iteratorp DNS__DB_FLARG) {
qpc_rditer_t *rbtiterator = NULL;
qpc_rditer_t *iterator = NULL;
rbtiterator = (qpc_rditer_t *)(*iteratorp);
iterator = (qpc_rditer_t *)(*iteratorp);
dns__db_detachnode(rbtiterator->common.db,
&rbtiterator->common.node DNS__DB_FLARG_PASS);
isc_mem_put(rbtiterator->common.db->mctx, rbtiterator,
sizeof(*rbtiterator));
dns__db_detachnode(iterator->common.db,
&iterator->common.node DNS__DB_FLARG_PASS);
isc_mem_put(iterator->common.db->mctx, iterator, sizeof(*iterator));
*iteratorp = NULL;
}
static bool
iterator_active(qpcache_t *qpdb, qpc_rditer_t *rbtiterator,
iterator_active(qpcache_t *qpdb, qpc_rditer_t *iterator,
dns_slabheader_t *header) {
dns_ttl_t stale_ttl = header->ttl + STALE_TTL(header, qpdb);
@@ -3793,7 +3789,7 @@ iterator_active(qpcache_t *qpdb, qpc_rditer_t *rbtiterator,
/*
* If this header is still active then return it.
*/
if (ACTIVE(header, rbtiterator->common.now)) {
if (ACTIVE(header, iterator->common.now)) {
return (true);
}
@@ -3801,17 +3797,17 @@ iterator_active(qpcache_t *qpdb, qpc_rditer_t *rbtiterator,
* If we are not returning stale records or the rdataset is
* too old don't return it.
*/
if (!STALEOK(rbtiterator) || (rbtiterator->common.now > stale_ttl)) {
if (!STALEOK(iterator) || (iterator->common.now > stale_ttl)) {
return (false);
}
return (true);
}
static isc_result_t
rdatasetiter_first(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
qpc_rditer_t *rbtiterator = (qpc_rditer_t *)iterator;
qpcache_t *qpdb = (qpcache_t *)(rbtiterator->common.db);
qpcnode_t *qpnode = rbtiterator->common.node;
rdatasetiter_first(dns_rdatasetiter_t *it DNS__DB_FLARG) {
qpc_rditer_t *iterator = (qpc_rditer_t *)it;
qpcache_t *qpdb = (qpcache_t *)(iterator->common.db);
qpcnode_t *qpnode = iterator->common.node;
dns_slabheader_t *header = NULL, *top_next = NULL;
isc_rwlocktype_t nlocktype = isc_rwlocktype_none;
@@ -3820,14 +3816,13 @@ rdatasetiter_first(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
for (header = qpnode->data; header != NULL; header = top_next) {
top_next = header->next;
do {
if (EXPIREDOK(rbtiterator)) {
if (EXPIREDOK(iterator)) {
if (!NONEXISTENT(header)) {
break;
}
header = header->down;
} else if (!IGNORE(header)) {
if (!iterator_active(qpdb, rbtiterator, header))
{
if (!iterator_active(qpdb, iterator, header)) {
header = NULL;
}
break;
@@ -3842,7 +3837,7 @@ rdatasetiter_first(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
NODE_UNLOCK(&qpdb->node_locks[qpnode->locknum].lock, &nlocktype);
rbtiterator->current = header;
iterator->current = header;
if (header == NULL) {
return (ISC_R_NOMORE);
@@ -3852,17 +3847,17 @@ rdatasetiter_first(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
}
static isc_result_t
rdatasetiter_next(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
qpc_rditer_t *rbtiterator = (qpc_rditer_t *)iterator;
qpcache_t *qpdb = (qpcache_t *)(rbtiterator->common.db);
qpcnode_t *qpnode = rbtiterator->common.node;
rdatasetiter_next(dns_rdatasetiter_t *it DNS__DB_FLARG) {
qpc_rditer_t *iterator = (qpc_rditer_t *)it;
qpcache_t *qpdb = (qpcache_t *)(iterator->common.db);
qpcnode_t *qpnode = iterator->common.node;
dns_slabheader_t *header = NULL, *top_next = NULL;
dns_typepair_t type, negtype;
dns_rdatatype_t rdtype, covers;
isc_rwlocktype_t nlocktype = isc_rwlocktype_none;
bool expiredok = EXPIREDOK(rbtiterator);
bool expiredok = EXPIREDOK(iterator);
header = rbtiterator->current;
header = iterator->current;
if (header == NULL) {
return (ISC_R_NOMORE);
}
@@ -3906,8 +3901,7 @@ rdatasetiter_next(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
}
header = header->down;
} else if (!IGNORE(header)) {
if (!iterator_active(qpdb, rbtiterator, header))
{
if (!iterator_active(qpdb, iterator, header)) {
header = NULL;
}
break;
@@ -3931,7 +3925,7 @@ rdatasetiter_next(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
NODE_UNLOCK(&qpdb->node_locks[qpnode->locknum].lock, &nlocktype);
rbtiterator->current = header;
iterator->current = header;
if (header == NULL) {
return (ISC_R_NOMORE);
@@ -3941,20 +3935,20 @@ rdatasetiter_next(dns_rdatasetiter_t *iterator DNS__DB_FLARG) {
}
static void
rdatasetiter_current(dns_rdatasetiter_t *iterator,
rdatasetiter_current(dns_rdatasetiter_t *it,
dns_rdataset_t *rdataset DNS__DB_FLARG) {
qpc_rditer_t *rbtiterator = (qpc_rditer_t *)iterator;
qpcache_t *qpdb = (qpcache_t *)(rbtiterator->common.db);
qpcnode_t *qpnode = rbtiterator->common.node;
qpc_rditer_t *iterator = (qpc_rditer_t *)it;
qpcache_t *qpdb = (qpcache_t *)(iterator->common.db);
qpcnode_t *qpnode = iterator->common.node;
dns_slabheader_t *header = NULL;
isc_rwlocktype_t nlocktype = isc_rwlocktype_none;
header = rbtiterator->current;
header = iterator->current;
REQUIRE(header != NULL);
NODE_RDLOCK(&qpdb->node_locks[qpnode->locknum].lock, &nlocktype);
bindrdataset(qpdb, qpnode, header, rbtiterator->common.now, nlocktype,
bindrdataset(qpdb, qpnode, header, iterator->common.now, nlocktype,
isc_rwlocktype_none, rdataset DNS__DB_FLARG_PASS);
NODE_UNLOCK(&qpdb->node_locks[qpnode->locknum].lock, &nlocktype);