Lock on indication, fix agent buglet

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1313 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channel.c

@@ -1150,6 +1150,7 @@ int ast_indicate(struct ast_channel *chan, int condition)
 	/* Stop if we're a zombie or need a soft hangup */
 	if (chan->zombie || ast_check_hangup(chan)) 
 		return -1;
+	ast_mutex_lock(&chan->lock);
 	if (chan->pvt->indicate)
 		res = chan->pvt->indicate(chan, condition);
 	if (!chan->pvt->indicate || res) {
@@ -1173,17 +1174,19 @@ int ast_indicate(struct ast_channel *chan, int condition)
 			if (ts && ts->data[0]) {
 				ast_log(LOG_DEBUG, "Driver for channel '%s' does not support indication %d, emulating it\n", chan->name, condition);
 				ast_playtones_start(chan,0,ts->data, 1);
+				res = 0;
 			} else if (condition == AST_CONTROL_PROGRESS) {
 				/* ast_playtones_stop(chan); */
 			} else {
 				/* not handled */
 				ast_log(LOG_WARNING, "Unable to handle indication %d for '%s'\n", condition, chan->name);
-				return -1;
+				res = -1;
 			}
 		}
 		else ast_playtones_stop(chan);
 	}
-	return 0;
+	ast_mutex_unlock(&chan->lock);
+	return res;
 }
 
 int ast_recvchar(struct ast_channel *chan, int timeout)

channels/chan_agent.c

@@ -246,6 +246,8 @@ static struct ast_frame  *agent_read(struct ast_channel *ast)
 	ast_mutex_lock(&p->lock); 
 	CHECK_FORMATS(ast, p);
 	if (p->chan) {
+		p->chan->exception = ast->exception;
+		p->chan->fdno = ast->fdno;
 		f = ast_read(p->chan);
 	} else
 		f = &null_frame;