[gegl] [buffer] Guard some multi threading code in #if #endif

[Øyvind Kolås <ok src gnome org>]

commit 3bf3d2e1341f05a9db8f4857276701ab4b88263b
Author: �yvind Kolås <pippin gimp org>
Date:   Fri Nov 20 01:52:31 2009 +0000

    [buffer] Guard some multi threading code in #if #endif

 gegl/buffer/gegl-buffer.c       |    7 ++++++-
 gegl/buffer/gegl-tile-storage.c |    4 ++++
 gegl/buffer/gegl-tile-storage.h |    3 ++-
 3 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer.c b/gegl/buffer/gegl-buffer.c
index dad5669..cc2399d 100644
--- a/gegl/buffer/gegl-buffer.c
+++ b/gegl/buffer/gegl-buffer.c
@@ -1210,20 +1210,25 @@ gboolean gegl_buffer_try_lock (GeglBuffer *buffer)
     buffer->lock_count++;
   return TRUE;
 #else
-  return g_mutex_trylock (buffer->tile_storage->mutex);
+  //return g_mutex_trylock (buffer->tile_storage->mutex);
+  return FALSE;
 #endif
 }
 
 #if 1
 gboolean gegl_buffer_lock (GeglBuffer *buffer)
 {
+#if ENABLE_MT
   if(0)g_mutex_lock (buffer->tile_storage->mutex);
+#endif
   return TRUE;
 }
 
 gboolean gegl_buffer_unlock (GeglBuffer *buffer)
 {
+#if ENABLE_MT
   if(0)g_mutex_unlock (buffer->tile_storage->mutex);
+#endif
   return TRUE;
 }
 #endif
diff --git a/gegl/buffer/gegl-tile-storage.c b/gegl/buffer/gegl-tile-storage.c
index badb283..6786ea3 100644
--- a/gegl/buffer/gegl-tile-storage.c
+++ b/gegl/buffer/gegl-tile-storage.c
@@ -273,7 +273,9 @@ gegl_tile_storage_constructor (GType                  type,
                                               tile_storage,
                                               NULL);
   tile_storage->seen_zoom = FALSE;
+#if ENABLE_MT
   tile_storage->mutex = g_mutex_new ();
+#endif
 
   return object;
 }
@@ -288,7 +290,9 @@ gegl_tile_storage_finalize (GObject *object)
 
   if (self->path)
     g_free (self->path);
+#if ENABLE_MT
   g_mutex_free (self->mutex);
+#endif
 
   (*G_OBJECT_CLASS (parent_class)->finalize)(object);
 }
diff --git a/gegl/buffer/gegl-tile-storage.h b/gegl/buffer/gegl-tile-storage.h
index f20fa86..1020d5b 100644
--- a/gegl/buffer/gegl-tile-storage.h
+++ b/gegl/buffer/gegl-tile-storage.h
@@ -31,8 +31,9 @@
 struct _GeglTileStorage
 {
   GeglTileHandlerChain parent_instance;
-
+#if ENABLE_MT
   GMutex      *mutex;
+#endif
   Babl        *format;
   gint         tile_width;
   gint         tile_height;