[mutter] MetaLauncher: Remember the KMS file path

[Jonas Ådahl <jadahl src gnome org>]

commit 4547c6e9f36891967fc125b7a9f86f3dbdf02f5d
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Aug 18 10:57:01 2016 +0800

    MetaLauncher: Remember the KMS file path
    
    Not only keep the KMS fd around, also remember the file path used. This
    will later be used when initializing a EGLDevice based renderer.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773629

 src/backends/native/meta-launcher.c |   14 +++++++++++++-
 src/backends/native/meta-launcher.h |    2 ++
 2 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/src/backends/native/meta-launcher.c b/src/backends/native/meta-launcher.c
index ddb7080..abba17e 100644
--- a/src/backends/native/meta-launcher.c
+++ b/src/backends/native/meta-launcher.c
@@ -61,6 +61,7 @@ struct _MetaLauncher
   gboolean session_active;
 
   int kms_fd;
+  char *kms_file_path;
 };
 
 static Login1Session *
@@ -435,6 +436,7 @@ static gboolean
 get_kms_fd (Login1Session *session_proxy,
             const gchar   *seat_id,
             int           *fd_out,
+            char         **kms_file_path_out,
             GError       **error)
 {
   int major, minor;
@@ -466,6 +468,7 @@ get_kms_fd (Login1Session *session_proxy,
     }
 
   *fd_out = fd;
+  *kms_file_path_out = g_steal_pointer (&path);
 
   return TRUE;
 }
@@ -509,6 +512,7 @@ meta_launcher_new (GError **error)
   g_autofree char *seat_id = NULL;
   gboolean have_control = FALSE;
   int kms_fd;
+  char *kms_file_path;
 
   session_proxy = get_session_proxy (NULL, error);
   if (!session_proxy)
@@ -530,7 +534,7 @@ meta_launcher_new (GError **error)
   if (!seat_proxy)
     goto fail;
 
-  if (!get_kms_fd (session_proxy, seat_id, &kms_fd, error))
+  if (!get_kms_fd (session_proxy, seat_id, &kms_fd, &kms_file_path, error))
     goto fail;
 
   self = g_slice_new0 (MetaLauncher);
@@ -539,6 +543,7 @@ meta_launcher_new (GError **error)
 
   self->session_active = TRUE;
   self->kms_fd = kms_fd;
+  self->kms_file_path = kms_file_path;
 
   clutter_evdev_set_device_callbacks (on_evdev_device_open,
                                       on_evdev_device_close,
@@ -558,6 +563,7 @@ meta_launcher_free (MetaLauncher *self)
 {
   g_object_unref (self->seat_proxy);
   g_object_unref (self->session_proxy);
+  g_free (self->kms_file_path);
   g_slice_free (MetaLauncher, self);
 }
 
@@ -585,3 +591,9 @@ meta_launcher_get_kms_fd (MetaLauncher *self)
 {
   return self->kms_fd;
 }
+
+const char *
+meta_launcher_get_kms_file_path (MetaLauncher *self)
+{
+  return self->kms_file_path;
+}
diff --git a/src/backends/native/meta-launcher.h b/src/backends/native/meta-launcher.h
index df4b0da..4b16e35 100644
--- a/src/backends/native/meta-launcher.h
+++ b/src/backends/native/meta-launcher.h
@@ -36,4 +36,6 @@ gboolean          meta_launcher_activate_vt             (MetaLauncher  *self,
 
 int               meta_launcher_get_kms_fd              (MetaLauncher  *self);
 
+const char *      meta_launcher_get_kms_file_path       (MetaLauncher *self);
+
 #endif /* META_LAUNCHER_H */