qmp hmp: Factor out common "using spice" test

Into qemu_using_spice().  For want of a better place, put it next the
existing monitor command handler dummies in qemu-spice.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/monitor.c b/monitor.c
index 7e4f605e6d..8323de3ebc 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1095,11 +1095,12 @@ static int client_migrate_info(Monitor *mon, const QDict *qdict,
     const char *subject  = qdict_get_try_str(qdict, "cert-subject");
     int port             = qdict_get_try_int(qdict, "port", -1);
     int tls_port         = qdict_get_try_int(qdict, "tls-port", -1);
+    Error *err;
     int ret;
 
     if (strcmp(protocol, "spice") == 0) {
-        if (!using_spice) {
-            qerror_report(QERR_DEVICE_NOT_ACTIVE, "spice");
+        if (!qemu_using_spice(&err)) {
+            qerror_report_err(err);
             return -1;
         }