commit 6f382ed226f3a408825d882e6c4b47499baaa15b
author Luiz Capitulino <lcapitulino@redhat.com> Tue Feb 14 13:41:13 2012 -0200
committer Luiz Capitulino <lcapitulino@redhat.com> Wed Feb 22 17:23:50 2012 -0200
tree 842957696f2497c86b3fd04170762969756c7a8c
parent bde25388d1cee6576ff12dd40f9abf489f0031ed

qmp: add DEVICE_TRAY_MOVED event

It's emitted whenever the tray is moved by the guest or by HMP/QMP
commands.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>

block.c

diff --git a/block.c b/block.c
index bfb0dec..e27d528 100644
--- a/block.c
+++ b/block.c
@@ -972,10 +972,30 @@
     qobject_decref(data);
 }
 
+static void bdrv_emit_qmp_eject_event(BlockDriverState *bs, bool ejected)
+{
+    QObject *data;
+
+    data = qobject_from_jsonf("{ 'device': %s, 'tray-open': %i }",
+                              bdrv_get_device_name(bs), ejected);
+    monitor_protocol_event(QEVENT_DEVICE_TRAY_MOVED, data);
+
+    qobject_decref(data);
+}
+
 static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load)
 {
     if (bs->dev_ops && bs->dev_ops->change_media_cb) {
+        bool tray_was_closed = !bdrv_dev_is_tray_open(bs);
         bs->dev_ops->change_media_cb(bs->dev_opaque, load);
+        if (tray_was_closed) {
+            /* tray open */
+            bdrv_emit_qmp_eject_event(bs, true);
+        }
+        if (load) {
+            /* tray close */
+            bdrv_emit_qmp_eject_event(bs, false);
+        }
     }
 }
 
@@ -3616,6 +3636,10 @@
     if (drv && drv->bdrv_eject) {
         drv->bdrv_eject(bs, eject_flag);
     }
+
+    if (bs->device_name[0] != '\0') {
+        bdrv_emit_qmp_eject_event(bs, eject_flag);
+    }
 }
 
 /**