qemu,qmp: Convert do_sendkey() to QObject,QError

Convert do_sendkey() to QObject,QError, we need to use it.(via libvirt)

It is a trivial conversion, carefully converted the error reports.

Signed-off-by Lai Jiangshan <[email protected]>

---

hmp-commands.hx +2 -1

index 23024ba..7a49b74 100644
@@ -436,7 +436,8 @@ ETEXI
         .args_type  = "string:s,hold_time:i?",
         .params     = "keys [hold_ms]",
         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
-        .mhandler.cmd = do_sendkey,
+        .user_print = monitor_user_noop,
+        .mhandler.cmd_new = do_sendkey,
     },
 
 STEXI

monitor.c +8 -7

index ec31eac..729a7cb 100644
@@ -1678,7 +1678,7 @@ static void release_keys(void *opaque)
     }
 }
 
-static void do_sendkey(Monitor *mon, const QDict *qdict)
+static int do_sendkey(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     char keyname_buf[16];
     char *separator;

@@ -1700,18 +1700,18 @@ static void do_sendkey(Monitor *mon, const QDict *qdict)
         if (keyname_len > 0) {
             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
             if (keyname_len > sizeof(keyname_buf) - 1) {
-                monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
-                return;
+                qerror_report(QERR_INVALID_KEY, keyname_buf);
+                return -1;
             }
             if (i == MAX_KEYCODES) {
-                monitor_printf(mon, "too many keys\n");
-                return;
+                qerror_report(QERR_TOO_MANY_KEYS);
+                return -1;
             }
             keyname_buf[keyname_len] = 0;
             keycode = get_keycode(keyname_buf);
             if (keycode < 0) {
-                monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
-                return;
+                qerror_report(QERR_UNKNOWN_KEY, keyname_buf);
+                return -1;
             }
             keycodes[i++] = keycode;
         }

@@ -1730,6 +1730,7 @@ static void do_sendkey(Monitor *mon, const QDict *qdict)
     /* delayed key up events */
     qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
+    return 0;
 }
 
 static int mouse_button_state;

qmp-commands.hx +24 -0

index e5f157f..a385b66 100644
@@ -225,6 +225,30 @@ Example:
 <- { "return": {} }
 
 EQMP
+    {
+        .name       = "sendkey",
+        .args_type  = "string:s,hold_time:i?",
+        .params     = "keys [hold_ms]",
+        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
+        .user_print = monitor_user_noop,
+        .mhandler.cmd_new = do_sendkey,
+    },
+
+SQMP
+@item sendkey @var{keys}
+@findex sendkey
+
+Send @var{keys} to the emulator. @var{keys} could be the name of the
+key or @code{#} followed by the raw value in either decimal or hexadecimal
+format. Use @code{-} to press several keys simultaneously. Example:
+@example
+sendkey ctrl-alt-f1
+@end example
+
+This command is useful to send keys that your graphical user interface
+intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
+
+EQMP
 
     {
         .name       = "system_reset",