In several places, the resolver assigned values to event->ev_sender simply

because the field couldn't be NULL (until recently).  They now use NULL.

diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index 084975ebae401255ec3645f9db07f30a341c4d31..8b16654bb9b7e8fa9ea6d4fc7a2d4b79a10766a7 100644 (file)
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: resolver.c,v 1.160 2000/07/28 22:37:47 bwelling Exp $ */
+/* $Id: resolver.c,v 1.161 2000/07/29 01:18:36 bwelling Exp $ */
 
 #include <config.h>
 
@@ -1849,6 +1849,8 @@ fctx_start(isc_task_t *task, isc_event_t *event) {
 
        REQUIRE(VALID_FCTX(fctx));
 
+       UNUSED(task);
+
        res = fctx->res;
        bucketnum = fctx->bucketnum;
 
@@ -1885,13 +1887,11 @@ fctx_start(isc_task_t *task, isc_event_t *event) {
                fctx->state = fetchstate_active;
                /*
                 * Reset the control event for later use in shutting down
-                * the fctx.  "task" is set as the sender only to satisfy
-                * the requirement that the sender is non-null, but it is not
-                * used by the event receiver.
+                * the fctx.
                 */
                ISC_EVENT_INIT(event, sizeof(*event), 0, NULL,
                               DNS_EVENT_FETCHCONTROL, fctx_doshutdown, fctx,
-                              task, NULL, NULL);
+                              NULL, NULL, NULL);
        }
 
        UNLOCK(&res->buckets[bucketnum].lock);
@@ -4764,15 +4764,12 @@ dns_resolver_createfetch(dns_resolver_t *res, dns_name_t *name,
        if (new_fctx) {
                if (result == ISC_R_SUCCESS) {
                        /*
-                        * Launch this fctx.  "task" is set as the sender only
-                        * to satisfy the requirement that the sender is
-                        * non-null, but it is not used by the event
-                        * receiver.
+                        * Launch this fctx.
                         */
                        event = &fctx->control_event;
                        ISC_EVENT_INIT(event, sizeof(*event), 0, NULL,
                                       DNS_EVENT_FETCHCONTROL,
-                                      fctx_start, fctx, task,
+                                      fctx_start, fctx, NULL,
                                       NULL, NULL);
                        isc_task_send(res->buckets[bucketnum].task, &event);
                } else {