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[Qemu-devel] [PULL 22/36] monitor: introduce monitor_qmp_respond()
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PULL 22/36] monitor: introduce monitor_qmp_respond() |
Date: |
Mon, 12 Mar 2018 13:36:13 -0500 |
From: Peter Xu <address@hidden>
A tiny refactoring, preparing to split the QMP dispatcher away.
Reviewed-by: Fam Zheng <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
[eblake: rebase to qobject_to() usage]
Signed-off-by: Eric Blake <address@hidden>
---
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
- [Qemu-devel] [PULL 18/36] monitor: unify global init, (continued)
- [Qemu-devel] [PULL 18/36] monitor: unify global init, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 11/36] block: Deprecate "backing": "", Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 17/36] monitor: move the cur_mon hack deeper for QMP, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 10/36] block: Handle null backing link, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 13/36] qobject: introduce qstring_get_try_str(), Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 26/36] qmp: add new event "command-dropped", Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 19/36] monitor: let mon_list be tail queue, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 01/36] qapi2texi: minor python code simplification, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 12/36] docs: update QMP documents for OOB commands, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 14/36] qobject: introduce qobject_get_try_str(), Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 22/36] monitor: introduce monitor_qmp_respond(),
Eric Blake <=
- [Qemu-devel] [PULL 20/36] monitor: allow using IO thread for parsing, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 24/36] monitor: let suspend/resume work even with QMPs, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 29/36] qmp: support out-of-band (oob) execution, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 32/36] qmp: add command "x-oob-test", Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 34/36] tests: qmp-test: add oob test, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 28/36] qapi: introduce new cmd option "allow-oob", Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 21/36] qmp: introduce QMPCapability, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 30/36] qmp: isolate responses into io thread, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 15/36] qobject: let object_property_get_str() use new API, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 23/36] monitor: let suspend_cnt be thread safe, Eric Blake, 2018/03/12