monitor: Introduce monitor_call_handler()

This commit moves the code which calls Monitor handlers to
its own function, as it will be used by QMP code as well.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

monitor.c

diff --git a/monitor.c b/monitor.c
index 1dda8cd..e202ba0 100644
--- a/monitor.c
+++ b/monitor.c
@@ -3187,6 +3187,18 @@
     mon->error = NULL;
 }
 
+static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
+                                 const QDict *params)
+{
+    QObject *data = NULL;
+
+    cmd->mhandler.cmd_new(mon, params, &data);
+    if (data)
+        cmd->user_print(mon, data);
+
+    qobject_decref(data);
+}
+
 static void monitor_handle_command(Monitor *mon, const char *cmdline)
 {
     QDict *qdict;
@@ -3201,13 +3213,7 @@
     qemu_errors_to_mon(mon);
 
     if (monitor_handler_ported(cmd)) {
-        QObject *data = NULL;
-
-        cmd->mhandler.cmd_new(mon, qdict, &data);
-        if (data)
-            cmd->user_print(mon, data);
-
-        qobject_decref(data);
+        monitor_call_handler(mon, cmd, qdict);
     } else {
         cmd->mhandler.cmd(mon, qdict);
     }