ui/clipboard: add qemu_clipboard_check_serial()

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/ui/clipboard.c b/ui/clipboard.c
index 743b39edf4..ffbd80e5c6 100644
--- a/ui/clipboard.c
+++ b/ui/clipboard.c
@@ -41,6 +41,21 @@ void qemu_clipboard_peer_release(QemuClipboardPeer *peer,
     }
 }
 
+bool qemu_clipboard_check_serial(QemuClipboardInfo *info, bool client)
+{
+    if (!info->has_serial ||
+        !cbinfo[info->selection] ||
+        !cbinfo[info->selection]->has_serial) {
+        return true;
+    }
+
+    if (client) {
+        return cbinfo[info->selection]->serial >= info->serial;
+    } else {
+        return cbinfo[info->selection]->serial > info->serial;
+    }
+}
+
 void qemu_clipboard_update(QemuClipboardInfo *info)
 {
     QemuClipboardNotify notify = {