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#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/assembly.h>
#include <string.h>
#define FIELD_ATTRIBUTE_STATIC 0x10
#define FIELD_ATTRIBUTE_HAS_FIELD_RVA 0x100
static int memory_usage (MonoObject *obj, GHashTable *visited);
static int
memory_usage_array (MonoArray *array, GHashTable *visited)
{
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 = mono_array_get (array, gpointer, i);
if (element != NULL)
total += memory_usage (element, visited);
}
}
return total;
}
static int
memory_usage (MonoObject *obj, GHashTable *visited)
{
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);
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);
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);
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 += mono_object_get_size (obj);
return total;
}
/*
* Only returns data for instances, not for static fields, those might
* be larger, or hold larger structures
*/
static int
GetMemoryUsage (MonoObject *this)
{
GHashTable *visited = g_hash_table_new (NULL, NULL);
int n;
n = memory_usage (this, visited);
g_hash_table_destroy (visited);
return n;
}
static int installed = 0;
void install_icall (MonoProfiler *prof, MonoMethod *method, MonoJitInfo* jinfo)
{
if (installed)
return;
mono_add_internal_call ("Mono.ObjectServices.ObjectInspector::GetMemoryUsage", GetMemoryUsage);
installed = 1;
}
void
mono_profiler_init_size (const char *desc)
{
MonoProfilerHandle handle = mono_profiler_create (NULL);
mono_profiler_set_jit_done_callback (handle, install_icall);
}
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