[PATCH v4 08/16] UsbDevicemanager: Track device redirection operations in progress

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From: Kirill Moizik <kmoizik@xxxxxxxxxx>

Signed-off-by: Kirill Moizik <kmoizik@xxxxxxxxxx>
Signed-off-by: Dmitry Fleytman <dfleytma@xxxxxxxxxx>
---
 src/usb-device-manager.c | 71 ++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 62 insertions(+), 9 deletions(-)

diff --git a/src/usb-device-manager.c b/src/usb-device-manager.c
index af2c87a..f133907 100644
--- a/src/usb-device-manager.c
+++ b/src/usb-device-manager.c
@@ -122,6 +122,7 @@ struct _SpiceUsbDeviceManagerPrivate {
     GUdevClient *udev;
     libusb_device **coldplug_list; /* Avoid needless reprobing during init */
 #else
+    gboolean redirecting;
     libusb_hotplug_callback_handle hp_handle;
 #endif
 #ifdef G_OS_WIN32
@@ -205,10 +206,25 @@ _spice_usb_device_manager_connect_device_async(SpiceUsbDeviceManager *self,
                                                GAsyncReadyCallback callback,
                                                gpointer user_data);
 
+static
+void _connect_device_async_cb(GObject *gobject,
+                              GAsyncResult *channel_res,
+                              gpointer user_data);
+
 G_DEFINE_BOXED_TYPE(SpiceUsbDevice, spice_usb_device,
                     (GBoxedCopyFunc)spice_usb_device_ref,
                     (GBoxedFreeFunc)spice_usb_device_unref)
 
+static void
+_set_redirecting(SpiceUsbDeviceManager *self, gboolean is_redirecting)
+{
+#ifdef USE_GUDEV
+    g_object_set(self->priv->udev, "redirecting", is_redirecting, NULL);
+#else
+    self->priv->redirecting = is_redirecting;
+#endif
+}
+
 #else
 G_DEFINE_BOXED_TYPE(SpiceUsbDevice, spice_usb_device, g_object_ref, g_object_unref)
 #endif
@@ -1103,6 +1119,13 @@ static void spice_usb_device_manager_channel_connect_cb(
     g_object_unref(result);
 }
 
+typedef struct _connect_cb_data
+{
+    SpiceUsbDeviceManager  *self;
+    GAsyncReadyCallback     callback;
+    gpointer                user_data;
+} connect_cb_data;
+
 #ifdef G_OS_WIN32
 
 typedef struct _UsbInstallCbInfo {
@@ -1138,7 +1161,7 @@ static void spice_usb_device_manager_drv_install_cb(GObject *gobject,
     SpiceUsbDevice *device;
     UsbInstallCbInfo *cbinfo;
     GCancellable *cancellable;
-    GAsyncReadyCallback callback;
+    connect_cb_data *data;
 
     g_return_if_fail(user_data != NULL);
 
@@ -1147,8 +1170,7 @@ static void spice_usb_device_manager_drv_install_cb(GObject *gobject,
     device      = cbinfo->device;
     installer   = cbinfo->installer;
     cancellable = cbinfo->cancellable;
-    callback    = cbinfo->callback;
-    user_data   = cbinfo->user_data;
+    data        = cbinfo->user_data;
 
     g_free(cbinfo);
 
@@ -1170,8 +1192,8 @@ static void spice_usb_device_manager_drv_install_cb(GObject *gobject,
     _spice_usb_device_manager_connect_device_async(self,
                                                    device,
                                                    cancellable,
-                                                   callback,
-                                                   user_data);
+                                                   _connect_device_async_cb,
+                                                   data);
 
     spice_usb_device_unref(device);
 }
@@ -1552,8 +1574,17 @@ void spice_usb_device_manager_connect_device_async(SpiceUsbDeviceManager *self,
                                              GAsyncReadyCallback callback,
                                              gpointer user_data)
 {
+    g_return_if_fail(SPICE_IS_USB_DEVICE_MANAGER(self));
+#ifdef USE_USBREDIR
+    _set_redirecting(self, TRUE);
+
+    connect_cb_data *data = g_new(connect_cb_data, 1);
+    data->self = self;
+    data->callback  = callback;
+    data->user_data = user_data;
+
     if (self->priv->use_usbclerk) {
-#if defined(USE_USBREDIR) && defined(G_OS_WIN32)
+#ifdef G_OS_WIN32
         SpiceWinUsbDriver *installer;
         UsbInstallCbInfo *cbinfo;
 
@@ -1568,7 +1599,7 @@ void spice_usb_device_manager_connect_device_async(SpiceUsbDeviceManager *self,
         cbinfo->installer   = installer;
         cbinfo->cancellable = cancellable;
         cbinfo->callback    = callback;
-        cbinfo->user_data   = user_data;
+        cbinfo->user_data   = data;
 
         spice_win_usb_driver_install_async(installer, device, cancellable,
                                            spice_usb_device_manager_drv_install_cb,
@@ -1580,9 +1611,10 @@ void spice_usb_device_manager_connect_device_async(SpiceUsbDeviceManager *self,
         _spice_usb_device_manager_connect_device_async(self,
                                                        device,
                                                        cancellable,
-                                                       callback,
-                                                       user_data);
+                                                       _connect_device_async_cb,
+                                                       data);
     }
+#endif
 }
 
 gboolean spice_usb_device_manager_connect_device_finish(
@@ -1600,6 +1632,27 @@ gboolean spice_usb_device_manager_connect_device_finish(
     return TRUE;
 }
 
+#ifdef USE_USBREDIR
+static
+void _connect_device_async_cb(GObject *gobject,
+                              GAsyncResult *channel_res,
+                              gpointer user_data)
+{
+    connect_cb_data    *data    = user_data;
+    GSimpleAsyncResult *result  = g_simple_async_result_new(
+                                    G_OBJECT(data->self),
+                                    data->callback,
+                                    data->user_data,
+                                    spice_usb_device_manager_connect_device_async);
+
+    _set_redirecting(data->self, FALSE);
+
+    g_simple_async_result_complete(result);
+    g_object_unref(result);
+    g_free(data);
+}
+#endif
+
 /**
  * spice_usb_device_manager_disconnect_device:
  * @manager: the #SpiceUsbDeviceManager manager
-- 
2.4.3

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