/*
 * 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.
 */

extern long long stat_scan_object_called_major;

#ifdef FIXED_HEAP
#define PREFETCH_DYNAMIC_HEAP(addr)
#else
#define PREFETCH_DYNAMIC_HEAP(addr)	PREFETCH ((addr))
#endif

#undef HANDLE_PTR
#define HANDLE_PTR(ptr,obj)	do {					\
		void *__old = *(ptr);					\
		void *__copy;						\
		if (__old) {						\
			PREFETCH_DYNAMIC_HEAP (__old);			\
			major_copy_or_mark_object ((ptr), queue);	\
			__copy = *(ptr);				\
			SGEN_COND_LOG (9, __old != __copy, "Overwrote field at %p with %p (was: %p)", (ptr), *(ptr), __old); \
			if (G_UNLIKELY (sgen_ptr_in_nursery (__copy) && !sgen_ptr_in_nursery ((ptr)))) \
				sgen_add_to_global_remset ((ptr));	\
		}							\
	} while (0)

static void
major_scan_object (char *start, SgenGrayQueue *queue)
{
#include "sgen-scan-object.h"

	HEAVY_STAT (++stat_scan_object_called_major);
}