/*
 * null-gc.c: GC implementation using malloc: will leak everything, just for testing.
 *
 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
 */

#include "config.h"
#include <glib.h>
#include <mono/metadata/mono-gc.h>
#include <mono/metadata/gc-internal.h>

#ifdef HAVE_NULL_GC

void
mono_gc_base_init (void)
{
}

void
mono_gc_collect (int generation)
{
}

int
mono_gc_max_generation (void)
{
	return 0;
}

int
mono_gc_get_generation  (MonoObject *object)
{
	return 0;
}

int
mono_gc_collection_count (int generation)
{
	return 0;
}

void
mono_gc_add_memory_pressure (gint64 value)
{
}

/* maybe track the size, not important, though */
int64_t
mono_gc_get_used_size (void)
{
	return 1024*1024;
}

int64_t
mono_gc_get_heap_size (void)
{
	return 2*1024*1024;
}

void
mono_gc_disable (void)
{
}

void
mono_gc_enable (void)
{
}

gboolean
mono_gc_is_gc_thread (void)
{
	return TRUE;
}

gboolean
mono_gc_register_thread (void *baseptr)
{
	return TRUE;
}

gboolean
mono_object_is_alive (MonoObject* o)
{
	return TRUE;
}

void
mono_gc_enable_events (void)
{
}

int
mono_gc_register_root (char *start, size_t size, void *descr)
{
	return TRUE;
}

void
mono_gc_deregister_root (char* addr)
{
}

void
mono_gc_weak_link_add (void **link_addr, MonoObject *obj, gboolean track)
{
	*link_addr = obj;
}

void
mono_gc_weak_link_remove (void **link_addr)
{
	*link_addr = NULL;
}

MonoObject*
mono_gc_weak_link_get (void **link_addr)
{
	return *link_addr;
}

void*
mono_gc_make_descr_for_string (gsize *bitmap, int numbits)
{
	return NULL;
}

void*
mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size)
{
	return NULL;
}

void*
mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size)
{
	return NULL;
}

void*
mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits)
{
	return NULL;
}

void*
mono_gc_alloc_fixed (size_t size, void *descr)
{
	return g_malloc0 (size);
}

void
mono_gc_free_fixed (void* addr)
{
	g_free (addr);
}

void
mono_gc_wbarrier_set_field (MonoObject *obj, gpointer field_ptr, MonoObject* value)
{
	*(void**)field_ptr = value;
}

void
mono_gc_wbarrier_set_arrayref (MonoArray *arr, gpointer slot_ptr, MonoObject* value)
{
	*(void**)slot_ptr = value;
}

void
mono_gc_wbarrier_arrayref_copy (gpointer dest_ptr, gpointer src_ptr, int count)
{
	memmove (dest_ptr, src_ptr, count * sizeof (gpointer));
}

void
mono_gc_wbarrier_generic_store (gpointer ptr, MonoObject* value)
{
	*(void**)ptr = value;
}

void
mono_gc_wbarrier_generic_nostore (gpointer ptr)
{
}

void
mono_gc_wbarrier_value_copy (gpointer dest, gpointer src, int count, MonoClass *klass)
{
	memmove (dest, src, count * mono_class_value_size (klass, NULL));
}

void
mono_gc_wbarrier_object_copy (MonoObject* obj, MonoObject *src)
{
	/* do not copy the sync state */
	memcpy ((char*)obj + sizeof (MonoObject), (char*)src + sizeof (MonoObject),
			mono_object_class (obj)->instance_size - sizeof (MonoObject));
}

MonoMethod*
mono_gc_get_managed_allocator (MonoVTable *vtable, gboolean for_box)
{
	return NULL;
}

MonoMethod*
mono_gc_get_managed_array_allocator (MonoVTable *vtable, int rank)
{
	return NULL;
}

MonoMethod*
mono_gc_get_managed_allocator_by_type (int atype)
{
	return NULL;
}

guint32
mono_gc_get_managed_allocator_types (void)
{
	return 0;
}

void
mono_gc_add_weak_track_handle (MonoObject *obj, guint32 gchandle)
{
}

void
mono_gc_change_weak_track_handle (MonoObject *old_obj, MonoObject *obj, guint32 gchandle)
{
}

void
mono_gc_remove_weak_track_handle (guint32 gchandle)
{
}

GSList*
mono_gc_remove_weak_track_object (MonoDomain *domain, MonoObject *obj)
{
	return NULL;
}

void
mono_gc_clear_domain (MonoDomain *domain)
{
}

int
mono_gc_get_suspend_signal (void)
{
	return -1;
}

MonoMethod*
mono_gc_get_write_barrier (void)
{
	g_assert_not_reached ();
	return NULL;
}

void*
mono_gc_invoke_with_gc_lock (MonoGCLockedCallbackFunc func, void *data)
{
	return func (data);
}

#endif