From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45335) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1evSJZ-0000nj-2g for qemu-devel@nongnu.org; Mon, 12 Mar 2018 14:36:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1evSJY-00060v-1U for qemu-devel@nongnu.org; Mon, 12 Mar 2018 14:36:53 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40646 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1evSJX-00060b-TZ for qemu-devel@nongnu.org; Mon, 12 Mar 2018 14:36:51 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7F0C476FB9 for ; Mon, 12 Mar 2018 18:36:51 +0000 (UTC) From: Eric Blake Date: Mon, 12 Mar 2018 13:36:13 -0500 Message-Id: <20180312183628.394722-23-eblake@redhat.com> In-Reply-To: <20180312183628.394722-1-eblake@redhat.com> References: <20180312183628.394722-1-eblake@redhat.com> Subject: [Qemu-devel] [PULL 22/36] monitor: introduce monitor_qmp_respond() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Xu , "Dr. David Alan Gilbert" , Markus Armbruster From: Peter Xu A tiny refactoring, preparing to split the QMP dispatcher away. Reviewed-by: Fam Zheng Reviewed-by: Stefan Hajnoczi Signed-off-by: Peter Xu Message-Id: <20180309090006.10018-12-peterx@redhat.com> Reviewed-by: Eric Blake [eblake: rebase to qobject_to() usage] Signed-off-by: Eric Blake --- monitor.c | 50 +++++++++++++++++++++++++++++++++----------------- 1 file changed, 33 insertions(+), 17 deletions(-) diff --git a/monitor.c b/monitor.c index 1a95fb372c6..a3412359ca8 100644 --- a/monitor.c +++ b/monitor.c @@ -3819,6 +3819,38 @@ static int monitor_can_read(void *opaque) return (mon->suspend_cnt == 0) ? 1 : 0; } +/* + * 1. This function takes ownership of rsp, err, and id. + * 2. rsp, err, and id may be NULL. + * 3. If err != NULL then rsp must be NULL. + */ +static void monitor_qmp_respond(Monitor *mon, QObject *rsp, + Error *err, QObject *id) +{ + QDict *qdict = NULL; + + if (err) { + assert(!rsp); + qdict = qdict_new(); + qdict_put_obj(qdict, "error", qmp_build_error_object(err)); + error_free(err); + rsp = QOBJECT(qdict); + } + + if (rsp) { + if (id) { + /* This is for the qdict below. */ + qobject_incref(id); + qdict_put_obj(qobject_to(QDict, rsp), "id", id); + } + + monitor_json_emitter(mon, rsp); + } + + qobject_decref(id); + qobject_decref(rsp); +} + static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens) { QObject *req, *rsp = NULL, *id = NULL; @@ -3870,24 +3902,8 @@ static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens) } err_out: - if (err) { - qdict = qdict_new(); - qdict_put_obj(qdict, "error", qmp_build_error_object(err)); - error_free(err); - rsp = QOBJECT(qdict); - } + monitor_qmp_respond(mon, rsp, err, id); - if (rsp) { - if (id) { - qdict_put_obj(qobject_to(QDict, rsp), "id", id); - id = NULL; - } - - monitor_json_emitter(mon, rsp); - } - - qobject_decref(id); - qobject_decref(rsp); qobject_decref(req); } -- 2.14.3