app_queue: add RINGCANCELED log event on caller hang up

QueueLog did not log ringnoanswer when the caller abandoned call
before first timeout. It was impossible to get agent membername
and ringing duration for this short calls. After some discusions
it seems that the best way is to add new event RINGCANCELED,
which is generated after caller hangup during ringing.

ASTERISK-26665

Change-Id: Ic70f7b0f32fc95c9378e5bcf63865519014805d3

UPGRADE.txt

@@ -33,6 +33,10 @@ Queue:
    their ringinuse value updated to the value of the queue. Previously, the
    ringinuse value for dynamic members was not updated on reload.
 
+Queue log:
+ - New RINGCANCELED event is logged when the caller hangs up while ringing.
+   The data1 field contains number of miliseconds since start of ringing.
+
 Channel Drivers:
 
 chan_dahdi:

apps/app_queue.c

@@ -4760,6 +4760,7 @@ static struct callattempt *wait_for_answer(struct queue_ent *qe, struct callatte
 #endif
 	char *inchan_name;
 	struct timeval start_time_tv = ast_tvnow();
+	int canceled_by_caller = 0; /* 1 when caller hangs up or press digit or press * */
 
 	ast_channel_lock(qe->chan);
 	inchan_name = ast_strdupa(ast_channel_name(qe->chan));
@@ -5198,29 +5199,33 @@ static struct callattempt *wait_for_answer(struct queue_ent *qe, struct callatte
 			if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass.integer == AST_CONTROL_HANGUP))) {
 				/* Got hung up */
 				*to = -1;
-				publish_dial_end_event(in, outgoing, NULL, "CANCEL");
 				if (f) {
 					if (f->data.uint32) {
 						ast_channel_hangupcause_set(in, f->data.uint32);
 					}
 					ast_frfree(f);
 				}
-				return NULL;
-			}
-
-			if ((f->frametype == AST_FRAME_DTMF) && caller_disconnect && (f->subclass.integer == '*')) {
+				canceled_by_caller = 1;
+			} else if ((f->frametype == AST_FRAME_DTMF) && caller_disconnect && (f->subclass.integer == '*')) {
 				ast_verb(3, "User hit %c to disconnect call.\n", f->subclass.integer);
 				*to = 0;
-				publish_dial_end_event(in, outgoing, NULL, "CANCEL");
 				ast_frfree(f);
-				return NULL;
-			}
-			if ((f->frametype == AST_FRAME_DTMF) && valid_exit(qe, f->subclass.integer)) {
+				canceled_by_caller = 1;
+			} else if ((f->frametype == AST_FRAME_DTMF) && valid_exit(qe, f->subclass.integer)) {
 				ast_verb(3, "User pressed digit: %c\n", f->subclass.integer);
 				*to = 0;
-				publish_dial_end_event(in, outgoing, NULL, "CANCEL");
 				*digit = f->subclass.integer;
 				ast_frfree(f);
+				canceled_by_caller = 1;
+			}
+			/* When caller hung up or pressed * or digit. */
+			if (canceled_by_caller) {
+				publish_dial_end_event(in, outgoing, NULL, "CANCEL");
+				for (o = start; o; o = o->call_next) {
+					if (o->chan) {
+						ast_queue_log(qe->parent->name, ast_channel_uniqueid(qe->chan), o->member->membername, "RINGCANCELED", "%d", (int) ast_tvdiff_ms(ast_tvnow(), start_time_tv));
+					}
+				}
 				return NULL;
 			}