[Spice-devel] [PATCH 2/5] WinUsbDev: add redirecting state to GUdevClientPrivate

[Christophe Fergeau]

On Thu, Jul 02, 2015 at 04:41:32PM +0300, Kirill Moizik wrote:
> we need to add redirecting  state to singleton  since wnd_proc callback should not query usb devices
> in the middle of redirecting flow.

Why ?


>GUdevClient is the only context exist in the cb, so we should add a stateand update it accordingly.
> 
> Signed-off-by: Kirill Moizik <kirill at daynix.com>
> ---
>  src/map-file      |  2 ++
>  src/win-usb-dev.c | 15 +++++++++++++++
>  src/win-usb-dev.h |  2 ++
>  3 files changed, 19 insertions(+)
> 
> diff --git a/src/map-file b/src/map-file
> index d3a079e..f9883b2 100644
> --- a/src/map-file
> +++ b/src/map-file
> @@ -117,6 +117,8 @@ spice_uri_to_string;
>  spice_usb_device_get_description;
>  spice_usb_device_get_libusb_device;
>  spice_usb_device_get_type;
> +spice_g_udev_set_redirecting;
> +spice_g_udev_handle_device_change;
>  spice_usb_device_manager_set_redirecting;
>  spice_usb_device_manager_get_redirecting;
>  spice_usb_device_manager_can_redirect_device;
> diff --git a/src/win-usb-dev.c b/src/win-usb-dev.c
> index 1e4b2d6..23bea42 100644
> --- a/src/win-usb-dev.c
> +++ b/src/win-usb-dev.c
> @@ -37,6 +37,7 @@ struct _GUdevClientPrivate {
>      gssize udev_list_size;
>      GList *udev_list;
>      HWND hwnd;
> +    gboolean redirecting;
>  };
>  
>  #define G_UDEV_CLIENT_WINCLASS_NAME  TEXT("G_UDEV_CLIENT")
> @@ -186,6 +187,7 @@ g_udev_client_initable_init(GInitable *initable, GCancellable *cancellable,
>      self = G_UDEV_CLIENT(initable);
>      priv = self->priv;
>  
> +    priv->redirecting = FALSE;
>      rc = libusb_init(&priv->ctx);
>      if (rc < 0) {
>          const char *errstr = spice_usbutil_libusb_strerror(rc);
> @@ -334,6 +336,11 @@ static gboolean gudev_devices_are_equal(GUdevDevice *a, GUdevDevice *b)
>      return (same_pid && same_vid);
>  }
>  
> +void spice_g_udev_set_redirecting (gboolean val)
> +{
> +    GUdevClientPrivate *priv = singleton->priv;
> +    priv->redirecting = val;
> +}
>  
>  /* Assumes each event stands for a single device change (at most) */
>  static void handle_dev_change(GUdevClient *self)
> @@ -347,6 +354,9 @@ static void handle_dev_change(GUdevClient *self)
>      GList *llist, *slist; /* long-list and short-list*/
>      GList *lit, *sit; /* iterators for long-list and short-list */
>      GUdevDevice *ldev, *sdev; /* devices on long-list and short-list */
> +    if (priv->redirecting == TRUE) {


if (priv->redirecting) {

}


> +        return;
> +    }
>  
>      dev_count = g_udev_client_list_devices(self, &now_devs, &err,
>                                             __FUNCTION__);
> @@ -409,6 +419,11 @@ leave:
>      priv->udev_list_size = dev_count;
>  }
>  
> +void spice_g_udev_handle_device_change(void)
> +{
> +    handle_dev_change(singleton);
> +}
> +
>  static LRESULT CALLBACK wnd_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
>  {
>      /* Only DBT_DEVNODES_CHANGED recieved */
> diff --git a/src/win-usb-dev.h b/src/win-usb-dev.h
> index b5c4fce..080c89f 100644
> --- a/src/win-usb-dev.h
> +++ b/src/win-usb-dev.h
> @@ -86,6 +86,8 @@ GType g_udev_device_get_type(void) G_GNUC_CONST;
>  const gchar *g_udev_device_get_property(GUdevDevice *udev, const gchar *property);
>  const gchar *g_udev_device_get_sysfs_attr(GUdevDevice *udev, const gchar *attr);
>  
> +void   spice_g_udev_set_redirecting(gboolean val);
> +void   spice_g_udev_handle_device_change(void);
>  GQuark g_udev_client_error_quark(void);
>  #define G_UDEV_CLIENT_ERROR g_udev_client_error_quark()
>  
> -- 
> 2.1.0
> 
> _______________________________________________
> Spice-devel mailing list
> Spice-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/spice-devel
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