Re: [PATCH spice-gtk 4/5] Narrow dbus-glib code, to fit other implementation easily

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On Fri, Feb 7, 2014 at 10:45 AM, Christophe Fergeau <cfergeau@xxxxxxxxxx> wrote:
> On Thu, Feb 06, 2014 at 01:55:54PM +0100, Marc-André Lureau wrote:
>> From: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
>>
>> ---
>>  gtk/desktop-integration.c | 55 +++++++++++++++++++++++++----------------------
>>  1 file changed, 29 insertions(+), 26 deletions(-)
>>
>> diff --git a/gtk/desktop-integration.c b/gtk/desktop-integration.c
>> index 06712d9..064994d 100644
>> --- a/gtk/desktop-integration.c
>> +++ b/gtk/desktop-integration.c
>> @@ -22,7 +22,7 @@
>>  #include "config.h"
>>
>>  #include <glib-object.h>
>> -#ifdef USE_DBUS_GLIB
>> +#if defined(USE_DBUS_GLIB)
>>  #include <dbus/dbus-glib.h>
>>  #endif
>>
>> @@ -41,12 +41,14 @@
>>      (G_TYPE_INSTANCE_GET_PRIVATE ((obj), SPICE_TYPE_DESKTOP_INTEGRATION, SpiceDesktopIntegrationPrivate))
>>
>>  struct _SpiceDesktopIntegrationPrivate {
>> -#ifdef USE_DBUS_GLIB
>> +#if defined(USE_DBUS_GLIB)
>>      DBusGProxy *gnome_session_proxy;
>> -    guint gnome_automount_inhibit_cookie;
>> +#elif defined(USE_GDBUS)
>> +    GDBusProxy *gnome_session_proxy;
>
> This bit belongs in the next patch.
>
>>  #else
>> -    int dummy;
>> +    GObject *gnome_session_proxy; /* dummy */
>>  #endif
>> +    guint gnome_automount_inhibit_cookie;
>>  };
>>
>>  G_DEFINE_TYPE(SpiceDesktopIntegration, spice_desktop_integration, G_TYPE_OBJECT);
>> @@ -54,27 +56,28 @@ G_DEFINE_TYPE(SpiceDesktopIntegration, spice_desktop_integration, G_TYPE_OBJECT)
>>  /* ------------------------------------------------------------------ */
>>  /* Gnome specific code                                                */
>>
>> -#ifdef USE_DBUS_GLIB
>> -
>>  static void handle_dbus_call_error(const char *call, GError **_error)
>>  {
>>      GError *error = *_error;
>>      const char *message = error->message;
>>
>> +#if defined(USE_DBUS_GLIB)
>>      if (error->domain == DBUS_GERROR &&
>>              error->code == DBUS_GERROR_REMOTE_EXCEPTION)
>>          message = dbus_g_error_get_name(error);
>> +#endif
>>      g_warning("Error calling '%s': %s", call, message);
>>      g_clear_error(_error);
>>  }
>>
>>  static gboolean gnome_integration_init(SpiceDesktopIntegration *self)
>>  {
>> -    SpiceDesktopIntegrationPrivate *priv = self->priv;
>> +    G_GNUC_UNUSED SpiceDesktopIntegrationPrivate *priv = self->priv;
>>      GError *error = NULL;
>> -    DBusGConnection *conn;
>> +    gboolean success = TRUE;
>>
>> -    conn = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
>> +#if defined(USE_DBUS_GLIB)
>> +    DBusGConnection *conn = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
>>      if (!conn)
>>          goto end;
>>
>> @@ -87,14 +90,18 @@ static gboolean gnome_integration_init(SpiceDesktopIntegration *self)
>>                                              "org.gnome.SessionManager",
>>                                              &error);
>>  end:
>> +#else
>> +    success = FALSE;
>
> Wondering if there should be some kind of compile-time or runtime warning
> if this bit of code is reached?

there is run-time, at caller side.

But adding this to second patch could be helpful:

if test "x$have_dbus" = "xno"; then
  AC_MSG_WARN([No D-Bus support, desktop function and USB may not work
properly])
fi

> ACK otherwise.
>
> Christophe



-- 
Marc-André Lureau
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