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/**
* NOTE: none of this actually applies as this file was taken from mono/samples
* @file size.c
* @brief file from mono samples
*
* $LicenseInfo:firstyear=2007&license=viewergpl$
*
* Copyright (c) 2007-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include <glib.h>
#include <mono/jit/jit.h>
#include <mono/metadata/environment.h>
#include <mono/metadata/profiler.h>
#include <mono/metadata/tokentype.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/llassembly.h>
#include <string.h>
#include "stdtypes.h"
#include "linden_common.h"
#define FIELD_ATTRIBUTE_STATIC 0x10
#define FIELD_ATTRIBUTE_HAS_FIELD_RVA 0x100
static int memory_usage (MonoObject *obj, GHashTable *visited,
int (*functor)(MonoObject*, MonoType*, int));
static int
memory_usage_array (MonoArray *array, GHashTable *visited,
int (*functor)(MonoObject*, MonoType*, int))
{
int total = 0;
MonoClass *array_class = mono_object_get_class ((MonoObject *) array);
MonoClass *element_class = mono_class_get_element_class (array_class);
MonoType *element_type = mono_class_get_type (element_class);
if (MONO_TYPE_IS_REFERENCE (element_type)) {
int i;
for (i = 0; i < mono_array_length (array); i++) {
MonoObject *element = (MonoObject*)mono_array_get (array, gpointer, i);
if (element != NULL)
total += memory_usage (element, visited, functor);
}
}
return total;
}
static int
memory_usage (MonoObject *obj, GHashTable *visited,
int (*functor)(MonoObject*, MonoType*, int))
{
int total = 0;
MonoClass *klass;
MonoType *type;
gpointer iter = NULL;
MonoClassField *field;
if (g_hash_table_lookup (visited, obj))
return 0;
g_hash_table_insert (visited, obj, obj);
klass = mono_object_get_class (obj);
type = mono_class_get_type (klass);
/* This is an array, so drill down into it */
if (type->type == MONO_TYPE_SZARRAY)
total += memory_usage_array ((MonoArray *) obj, visited, functor);
while ((field = mono_class_get_fields (klass, &iter)) != NULL) {
MonoType *ftype = mono_field_get_type (field);
gpointer value;
if ((ftype->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA)) != 0)
continue;
/* FIXME: There are probably other types we need to drill down into */
switch (ftype->type) {
case MONO_TYPE_CLASS:
case MONO_TYPE_OBJECT:
mono_field_get_value (obj, field, &value);
if (value != NULL)
total += memory_usage ((MonoObject *) value, visited, functor);
break;
case MONO_TYPE_STRING:
mono_field_get_value (obj, field, &value);
if (value != NULL)
total += mono_object_get_size ((MonoObject *) value);
break;
case MONO_TYPE_SZARRAY:
mono_field_get_value (obj, field, &value);
if (value != NULL) {
total += memory_usage_array ((MonoArray *) value, visited, functor);
total += mono_object_get_size ((MonoObject *) value);
}
break;
default:
/* printf ("Got type 0x%x\n", ftype->type); */
/* ignore, this will be included in mono_object_get_size () */
break;
}
}
total = functor(obj, type, total);
return total;
}
int addObjectSize(MonoObject* obj, MonoType* type, int total)
{
return total + mono_object_get_size (obj);
}
/*
* Only returns data for instances, not for static fields, those might
* be larger, or hold larger structures
*/
int
GetMemoryUsage (MonoObject *obj)
{
GHashTable *visited = g_hash_table_new (NULL, NULL);
int n;
n = memory_usage (obj, visited, addObjectSize);
g_hash_table_destroy (visited);
return n;
}
int printObjectSize(MonoObject* obj, MonoType* type, int total)
{
total += mono_object_get_size (obj);
llinfos << "Object type: " << mono_type_full_name(type) << " size: "
<< total << llendl;
return total;
}
/*
* Only returns data for instances, not for static fields, those might
* be larger, or hold larger structures
*/
int
PrintMemoryUsage (MonoObject *obj)
{
GHashTable *visited = g_hash_table_new (NULL, NULL);
int n;
n = memory_usage (obj, visited, printObjectSize);
g_hash_table_destroy (visited);
return n;
}
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