monitor: Port handler_0 to use QDict

This commit ports command handlers that receive no arguments to use
the new monitor's dictionary.

It might seem no sense to do this, as the handlers have no arguments,
but at the end of this porting work all handlers will have the same
structure.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/monitor.c b/monitor.c
index 727848d..2b55c4c 100644
--- a/monitor.c
+++ b/monitor.c
@@ -426,7 +426,7 @@
 }
 #endif
 
-static void do_quit(Monitor *mon)
+static void do_quit(Monitor *mon, const QDict *qdict)
 {
     exit(0);
 }
@@ -559,7 +559,7 @@
     }
 }
 
-static void do_stop(Monitor *mon)
+static void do_stop(Monitor *mon, const QDict *qdict)
 {
     vm_stop(EXCP_INTERRUPT);
 }
@@ -571,7 +571,7 @@
     int err;
 };
 
-static void do_cont(Monitor *mon)
+static void do_cont(Monitor *mon, const QDict *qdict)
 {
     struct bdrv_iterate_context context = { mon, 0 };
 
@@ -587,7 +587,7 @@
 
     /* another key was set successfully, retry to continue */
     if (!err)
-        do_cont(mon);
+        do_cont(mon, NULL);
 }
 
 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
@@ -1238,12 +1238,12 @@
     }
 }
 
-static void do_system_reset(Monitor *mon)
+static void do_system_reset(Monitor *mon, const QDict *qdict)
 {
     qemu_system_reset_request();
 }
 
-static void do_system_powerdown(Monitor *mon)
+static void do_system_powerdown(Monitor *mon, const QDict *qdict)
 {
     qemu_system_powerdown_request();
 }
@@ -2554,7 +2554,7 @@
     QDict *qdict;
     void *str_allocated[MAX_ARGS];
     void *args[MAX_ARGS];
-    void (*handler_0)(Monitor *mon);
+    void (*handler_d)(Monitor *mon, const QDict *qdict);
     void (*handler_1)(Monitor *mon, void *arg0);
     void (*handler_2)(Monitor *mon, void *arg0, void *arg1);
     void (*handler_3)(Monitor *mon, void *arg0, void *arg1, void *arg2);
@@ -2848,8 +2848,8 @@
     qemu_errors_to_mon(mon);
     switch(nb_args) {
     case 0:
-        handler_0 = cmd->handler;
-        handler_0(mon);
+        handler_d = cmd->handler;
+        handler_d(mon, qdict);
         break;
     case 1:
         handler_1 = cmd->handler;