[PATCH] monitor: trace qmp_send_response

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Add a useful counterpart for trace_handle_qmp_command for debugging
libvirt guests.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 monitor/qmp.c        | 6 ++++++
 monitor/trace-events | 1 +
 2 files changed, 7 insertions(+)

diff --git a/monitor/qmp.c b/monitor/qmp.c
index 8f91af32be..772b9e7b30 100644
--- a/monitor/qmp.c
+++ b/monitor/qmp.c
@@ -111,6 +111,12 @@ void qmp_send_response(MonitorQMP *mon, const QDict *rsp)
     const QObject *data = QOBJECT(rsp);
     GString *json;
 
+    if (trace_event_get_state_backends(TRACE_QMP_SEND_RESPONSE)) {
+        json = qobject_to_json(data);
+        trace_qmp_send_response(mon, json->str);
+        g_string_free(json, true);
+    }
+
     json = qobject_to_json_pretty(data, mon->pretty);
     assert(json != NULL);
 
diff --git a/monitor/trace-events b/monitor/trace-events
index 0365ac4d99..12f0576c7b 100644
--- a/monitor/trace-events
+++ b/monitor/trace-events
@@ -13,3 +13,4 @@ monitor_suspend(void *ptr, int cnt) "mon %p: %d"
 monitor_qmp_cmd_in_band(const char *id) "%s"
 monitor_qmp_cmd_out_of_band(const char *id) "%s"
 handle_qmp_command(void *mon, const char *req) "mon %p req: %s"
+qmp_send_response(void *mon, const char *req) "mon %p req: %s"
-- 
2.29.2