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Unify how we use isc_refcount_decrement() to destroy object

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The isc_refcount_decrement() was either used as:

    if (isc_refcount_decrement() == 1) { destroy(); }

or

    if (isc_refcount_decrement() != 1) { return; } destroy();

This commits eradicates the last usage of the later, so the code is unified to
use the former.
This commit is contained in:
Ondřej Surý
2019-09-12 09:49:16 +02:00
committed by Mark Andrews
parent c3bcb4d47a
commit ed494fe29d
1 changed files with 57 additions and 59 deletions
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116
lib/dns/rpz.c
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@@ -2081,70 +2081,68 @@ rpz_detach(dns_rpz_zone_t **rpzp) {
rpz = *rpzp; rpz = *rpzp;
*rpzp = NULL; *rpzp = NULL;
if (isc_refcount_decrement(&rpz->refs) != 1) { if (isc_refcount_decrement(&rpz->refs) == 1) {
return; isc_refcount_destroy(&rpz->refs);
}
isc_refcount_destroy(&rpz->refs); rpzs = rpz->rpzs;
rpz->rpzs = NULL;
rpzs = rpz->rpzs; if (dns_name_dynamic(&rpz->origin)) {
rpz->rpzs = NULL; dns_name_free(&rpz->origin, rpzs->mctx);
if (dns_name_dynamic(&rpz->origin)) {
dns_name_free(&rpz->origin, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->client_ip)) {
dns_name_free(&rpz->client_ip, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->ip)) {
dns_name_free(&rpz->ip, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->nsdname)) {
dns_name_free(&rpz->nsdname, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->nsip)) {
dns_name_free(&rpz->nsip, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->passthru)) {
dns_name_free(&rpz->passthru, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->drop)) {
dns_name_free(&rpz->drop, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->tcp_only)) {
dns_name_free(&rpz->tcp_only, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->cname)) {
dns_name_free(&rpz->cname, rpzs->mctx);
}
if (rpz->dbversion != NULL) {
dns_db_closeversion(rpz->db, &rpz->dbversion, false);
}
if (rpz->db != NULL) {
dns_db_updatenotify_unregister(
rpz->db, dns_rpz_dbupdate_callback, rpz);
dns_db_detach(&rpz->db);
}
if (rpz->updaterunning) {
isc_task_purgeevent(rpzs->updater, &rpz->updateevent);
if (rpz->updbit != NULL) {
dns_dbiterator_destroy(&rpz->updbit);
} }
if (rpz->newnodes != NULL) { if (dns_name_dynamic(&rpz->client_ip)) {
isc_ht_destroy(&rpz->newnodes); dns_name_free(&rpz->client_ip, rpzs->mctx);
} }
dns_db_closeversion(rpz->updb, &rpz->updbversion, false); if (dns_name_dynamic(&rpz->ip)) {
dns_db_detach(&rpz->updb); dns_name_free(&rpz->ip, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->nsdname)) {
dns_name_free(&rpz->nsdname, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->nsip)) {
dns_name_free(&rpz->nsip, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->passthru)) {
dns_name_free(&rpz->passthru, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->drop)) {
dns_name_free(&rpz->drop, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->tcp_only)) {
dns_name_free(&rpz->tcp_only, rpzs->mctx);
}
if (dns_name_dynamic(&rpz->cname)) {
dns_name_free(&rpz->cname, rpzs->mctx);
}
if (rpz->dbversion != NULL) {
dns_db_closeversion(rpz->db, &rpz->dbversion, false);
}
if (rpz->db != NULL) {
dns_db_updatenotify_unregister(
rpz->db, dns_rpz_dbupdate_callback, rpz);
dns_db_detach(&rpz->db);
}
if (rpz->updaterunning) {
isc_task_purgeevent(rpzs->updater, &rpz->updateevent);
if (rpz->updbit != NULL) {
dns_dbiterator_destroy(&rpz->updbit);
}
if (rpz->newnodes != NULL) {
isc_ht_destroy(&rpz->newnodes);
}
dns_db_closeversion(rpz->updb, &rpz->updbversion, false);
dns_db_detach(&rpz->updb);
}
isc_timer_reset(rpz->updatetimer, isc_timertype_inactive,
NULL, NULL, true);
isc_timer_detach(&rpz->updatetimer);
isc_ht_destroy(&rpz->nodes);
isc_mem_put(rpzs->mctx, rpz, sizeof(*rpz));
rpz_detach_rpzs(&rpzs);
} }
isc_timer_reset(rpz->updatetimer, isc_timertype_inactive,
NULL, NULL, true);
isc_timer_detach(&rpz->updatetimer);
isc_ht_destroy(&rpz->nodes);
isc_mem_put(rpzs->mctx, rpz, sizeof(*rpz));
rpz_detach_rpzs(&rpzs);
} }
void void