/*
 * sgen-major-scan-object.h: Object scanning in the major collectors.
 *
 * Copyright 2001-2003 Ximian, Inc
 * Copyright 2003-2010 Novell, Inc.
 * Copyright (C) 2012 Xamarin Inc
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License 2.0 as published by the Free Software Foundation;
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License 2.0 along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * FIXME: We use the same scanning function in the concurrent collector whether we scan
 * during the starting/finishing collection pause (with the world stopped) or from the
 * concurrent worker thread.
 *
 * As long as the world is stopped, we should just follow pointers into the nursery and
 * evict if possible.  In that case we also don't need the ALWAYS_ADD_TO_GLOBAL_REMSET case,
 * which only seems to make sense for when the world is stopped, in which case we only need
 * it because we don't follow into the nursery.
 */

#undef HANDLE_PTR
#define HANDLE_PTR(ptr,obj)     do {                                    \
                GCObject *__old = *(ptr);                                   \
                binary_protocol_scan_process_reference ((full_object), (ptr), __old); \
                if (__old) {                                            \
                        gboolean __still_in_nursery = major_copy_or_mark_object_with_evacuation ((ptr), __old, queue); \
                        if (G_UNLIKELY (__still_in_nursery && !sgen_ptr_in_nursery ((ptr)) && !SGEN_OBJECT_IS_CEMENTED (*(ptr)))) { \
                                GCObject *__copy = *(ptr);                  \
                                sgen_add_to_global_remset ((ptr), __copy); \
                        }						\
                }                                                       \
        } while (0)


static void
major_scan_vtype_concurrent_finish (GCObject *full_object, char *start, SgenDescriptor desc, SgenGrayQueue *queue BINARY_PROTOCOL_ARG (size_t size))
{
	SGEN_OBJECT_LAYOUT_STATISTICS_DECLARE_BITMAP;

#ifdef HEAVY_STATISTICS
	/* FIXME: We're half scanning this object.  How do we account for that? */
	//add_scanned_object (start);
#endif

	/* The descriptors include info about the object header as well */
	start -= SGEN_CLIENT_OBJECT_HEADER_SIZE;

#define SCAN_OBJECT_NOVTABLE
#define SCAN_OBJECT_PROTOCOL
#include "sgen-scan-object.h"

	SGEN_OBJECT_LAYOUT_STATISTICS_COMMIT_BITMAP;
}