char/spice: trigger HUP event

Inform the front-end of disconnected state (spice client
disconnected).

This will wakeup the source handler immediately, so it can detect the
disconnection asap.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Victor Toso <victortoso@redhat.com>
Message-id: 20190221110703.5775-2-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/chardev/spice.c b/chardev/spice.c
index 173c257949..c2baeb5461 100644
--- a/chardev/spice.c
+++ b/chardev/spice.c
@@ -148,15 +148,25 @@ static void vmc_unregister_interface(SpiceChardev *scd)
 static gboolean spice_char_source_prepare(GSource *source, gint *timeout)
 {
     SpiceCharSource *src = (SpiceCharSource *)source;
+    Chardev *chr = CHARDEV(src->scd);
 
     *timeout = -1;
 
+    if (!chr->be_open) {
+        return true;
+    }
+
     return !src->scd->blocked;
 }
 
 static gboolean spice_char_source_check(GSource *source)
 {
     SpiceCharSource *src = (SpiceCharSource *)source;
+    Chardev *chr = CHARDEV(src->scd);
+
+    if (!chr->be_open) {
+        return true;
+    }
 
     return !src->scd->blocked;
 }
@@ -164,9 +174,12 @@ static gboolean spice_char_source_check(GSource *source)
 static gboolean spice_char_source_dispatch(GSource *source,
     GSourceFunc callback, gpointer user_data)
 {
+    SpiceCharSource *src = (SpiceCharSource *)source;
+    Chardev *chr = CHARDEV(src->scd);
     GIOFunc func = (GIOFunc)callback;
+    GIOCondition cond = chr->be_open ? G_IO_OUT : G_IO_HUP;
 
-    return func(NULL, G_IO_OUT, user_data);
+    return func(NULL, cond, user_data);
 }
 
 static GSourceFuncs SpiceCharSourceFuncs = {