/
generic-sharing.c
1527 lines (1246 loc) · 39.9 KB
/
generic-sharing.c
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/*
* generic-sharing.c: Support functions for generic sharing.
*
* Author:
* Mark Probst (mark.probst@gmail.com)
*
* Copyright 2007-2009 Novell, Inc (http://www.novell.com)
*/
#include <config.h>
#include <string.h>
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#ifdef _MSC_VER
#include <glib.h>
#endif
#include <mono/utils/mono-membar.h>
#include <mono/utils/mono-counters.h>
#include "metadata-internals.h"
#include "class.h"
#include "class-internals.h"
#include "marshal.h"
#include "debug-helpers.h"
#include "tabledefs.h"
#include "mempool-internals.h"
static int
type_check_context_used (MonoType *type, gboolean recursive)
{
switch (mono_type_get_type (type)) {
case MONO_TYPE_VAR:
return MONO_GENERIC_CONTEXT_USED_CLASS;
case MONO_TYPE_MVAR:
return MONO_GENERIC_CONTEXT_USED_METHOD;
case MONO_TYPE_SZARRAY:
return mono_class_check_context_used (mono_type_get_class (type));
case MONO_TYPE_ARRAY:
return mono_class_check_context_used (mono_type_get_array_type (type)->eklass);
case MONO_TYPE_CLASS:
if (recursive)
return mono_class_check_context_used (mono_type_get_class (type));
else
return 0;
case MONO_TYPE_GENERICINST:
if (recursive) {
MonoGenericClass *gclass = type->data.generic_class;
g_assert (gclass->container_class->generic_container);
return mono_generic_context_check_used (&gclass->context);
} else {
return 0;
}
default:
return 0;
}
}
static int
inst_check_context_used (MonoGenericInst *inst)
{
int context_used = 0;
int i;
if (!inst)
return 0;
for (i = 0; i < inst->type_argc; ++i)
context_used |= type_check_context_used (inst->type_argv [i], TRUE);
return context_used;
}
/*
* mono_generic_context_check_used:
* @context: a generic context
*
* Checks whether the context uses a type variable. Returns an int
* with the bit MONO_GENERIC_CONTEXT_USED_CLASS set to reflect whether
* the context's class instantiation uses type variables.
*/
int
mono_generic_context_check_used (MonoGenericContext *context)
{
int context_used = 0;
context_used |= inst_check_context_used (context->class_inst);
context_used |= inst_check_context_used (context->method_inst);
return context_used;
}
/*
* mono_class_check_context_used:
* @class: a class
*
* Checks whether the class's generic context uses a type variable.
* Returns an int with the bit MONO_GENERIC_CONTEXT_USED_CLASS set to
* reflect whether the context's class instantiation uses type
* variables.
*/
int
mono_class_check_context_used (MonoClass *class)
{
int context_used = 0;
context_used |= type_check_context_used (&class->this_arg, FALSE);
context_used |= type_check_context_used (&class->byval_arg, FALSE);
if (class->generic_class)
context_used |= mono_generic_context_check_used (&class->generic_class->context);
else if (class->generic_container)
context_used |= mono_generic_context_check_used (&class->generic_container->context);
return context_used;
}
/*
* LOCKING: loader lock
*/
static MonoRuntimeGenericContextOtherInfoTemplate*
get_other_info_templates (MonoRuntimeGenericContextTemplate *template, int type_argc)
{
g_assert (type_argc >= 0);
if (type_argc == 0)
return template->other_infos;
return g_slist_nth_data (template->method_templates, type_argc - 1);
}
/*
* LOCKING: loader lock
*/
static void
set_other_info_templates (MonoImage *image, MonoRuntimeGenericContextTemplate *template, int type_argc,
MonoRuntimeGenericContextOtherInfoTemplate *oti)
{
g_assert (type_argc >= 0);
if (type_argc == 0)
template->other_infos = oti;
else {
int length = g_slist_length (template->method_templates);
GSList *list;
/* FIXME: quadratic! */
while (length < type_argc) {
template->method_templates = g_slist_append_image (image, template->method_templates, NULL);
length++;
}
list = g_slist_nth (template->method_templates, type_argc - 1);
g_assert (list);
list->data = oti;
}
}
/*
* LOCKING: loader lock
*/
static int
template_get_max_argc (MonoRuntimeGenericContextTemplate *template)
{
return g_slist_length (template->method_templates);
}
/*
* LOCKING: loader lock
*/
static MonoRuntimeGenericContextOtherInfoTemplate*
rgctx_template_get_other_slot (MonoRuntimeGenericContextTemplate *template, int type_argc, int slot)
{
int i;
MonoRuntimeGenericContextOtherInfoTemplate *oti;
g_assert (slot >= 0);
for (oti = get_other_info_templates (template, type_argc), i = 0; i < slot; oti = oti->next, ++i) {
if (!oti)
return NULL;
}
return oti;
}
/*
* LOCKING: loader lock
*/
static int
rgctx_template_num_other_infos (MonoRuntimeGenericContextTemplate *template, int type_argc)
{
MonoRuntimeGenericContextOtherInfoTemplate *oti;
int i;
for (i = 0, oti = get_other_info_templates (template, type_argc); oti; ++i, oti = oti->next)
;
return i;
}
/* Maps from uninstantiated generic classes to GList's of
* uninstantiated generic classes whose parent is the key class or an
* instance of the key class.
*
* LOCKING: loader lock
*/
static GHashTable *generic_subclass_hash;
/*
* LOCKING: templates lock
*/
static void
class_set_rgctx_template (MonoClass *class, MonoRuntimeGenericContextTemplate *rgctx_template)
{
if (!class->image->rgctx_template_hash)
class->image->rgctx_template_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
g_hash_table_insert (class->image->rgctx_template_hash, class, rgctx_template);
}
/*
* LOCKING: loader lock
*/
static MonoRuntimeGenericContextTemplate*
class_lookup_rgctx_template (MonoClass *class)
{
MonoRuntimeGenericContextTemplate *template;
if (!class->image->rgctx_template_hash)
return NULL;
template = g_hash_table_lookup (class->image->rgctx_template_hash, class);
return template;
}
/*
* LOCKING: loader lock
*/
static void
register_generic_subclass (MonoClass *class)
{
MonoClass *parent = class->parent;
MonoClass *subclass;
MonoRuntimeGenericContextTemplate *rgctx_template = class_lookup_rgctx_template (class);
g_assert (rgctx_template);
if (parent->generic_class)
parent = parent->generic_class->container_class;
if (!generic_subclass_hash)
generic_subclass_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
subclass = g_hash_table_lookup (generic_subclass_hash, parent);
rgctx_template->next_subclass = subclass;
g_hash_table_insert (generic_subclass_hash, parent, class);
}
static void
move_subclasses_not_in_image_foreach_func (MonoClass *class, MonoClass *subclass, MonoImage *image)
{
MonoClass *new_list;
if (class->image == image) {
/* The parent class itself is in the image, so all the
subclasses must be in the image, too. If not,
we're removing an image containing a class which
still has a subclass in another image. */
while (subclass) {
g_assert (subclass->image == image);
subclass = class_lookup_rgctx_template (subclass)->next_subclass;
}
return;
}
new_list = NULL;
while (subclass) {
MonoRuntimeGenericContextTemplate *subclass_template = class_lookup_rgctx_template (subclass);
MonoClass *next = subclass_template->next_subclass;
if (subclass->image != image) {
subclass_template->next_subclass = new_list;
new_list = subclass;
}
subclass = next;
}
if (new_list)
g_hash_table_insert (generic_subclass_hash, class, new_list);
}
/*
* mono_class_unregister_image_generic_subclasses:
* @image: an image
*
* Removes all classes of the image from the generic subclass hash.
* Must be called when an image is unloaded.
*/
void
mono_class_unregister_image_generic_subclasses (MonoImage *image)
{
GHashTable *old_hash;
//g_print ("unregistering image %s\n", image->name);
if (!generic_subclass_hash)
return;
mono_loader_lock ();
old_hash = generic_subclass_hash;
generic_subclass_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
g_hash_table_foreach (old_hash, (GHFunc)move_subclasses_not_in_image_foreach_func, image);
mono_loader_unlock ();
g_hash_table_destroy (old_hash);
}
static MonoRuntimeGenericContextTemplate*
alloc_template (MonoClass *class)
{
static gboolean inited = FALSE;
static int num_allocted = 0;
static int num_bytes = 0;
int size = sizeof (MonoRuntimeGenericContextTemplate);
if (!inited) {
mono_counters_register ("RGCTX template num allocted", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_allocted);
mono_counters_register ("RGCTX template bytes allocted", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_bytes);
inited = TRUE;
}
num_allocted++;
num_bytes += size;
return mono_image_alloc0 (class->image, size);
}
static MonoRuntimeGenericContextOtherInfoTemplate*
alloc_oti (MonoImage *image)
{
static gboolean inited = FALSE;
static int num_allocted = 0;
static int num_bytes = 0;
int size = sizeof (MonoRuntimeGenericContextOtherInfoTemplate);
if (!inited) {
mono_counters_register ("RGCTX oti num allocted", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_allocted);
mono_counters_register ("RGCTX oti bytes allocted", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_bytes);
inited = TRUE;
}
num_allocted++;
num_bytes += size;
return mono_image_alloc0 (image, size);
}
#define MONO_RGCTX_SLOT_USED_MARKER ((gpointer)&mono_defaults.object_class->byval_arg)
/*
* LOCKING: loader lock
*/
static void
rgctx_template_set_other_slot (MonoImage *image, MonoRuntimeGenericContextTemplate *template, int type_argc,
int slot, gpointer data, int info_type)
{
static gboolean inited = FALSE;
static int num_markers = 0;
static int num_data = 0;
int i;
MonoRuntimeGenericContextOtherInfoTemplate *list = get_other_info_templates (template, type_argc);
MonoRuntimeGenericContextOtherInfoTemplate **oti = &list;
if (!inited) {
mono_counters_register ("RGCTX oti num markers", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_markers);
mono_counters_register ("RGCTX oti num data", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_data);
inited = TRUE;
}
g_assert (slot >= 0);
g_assert (data);
i = 0;
while (i <= slot) {
if (i > 0)
oti = &(*oti)->next;
if (!*oti)
*oti = alloc_oti (image);
++i;
}
g_assert (!(*oti)->data);
(*oti)->data = data;
(*oti)->info_type = info_type;
set_other_info_templates (image, template, type_argc, list);
if (data == MONO_RGCTX_SLOT_USED_MARKER)
++num_markers;
else
++num_data;
}
/*
* mono_method_get_declaring_generic_method:
* @method: an inflated method
*
* Returns an inflated method's declaring method.
*/
MonoMethod*
mono_method_get_declaring_generic_method (MonoMethod *method)
{
MonoMethodInflated *inflated;
g_assert (method->is_inflated);
inflated = (MonoMethodInflated*)method;
return inflated->declaring;
}
/*
* mono_class_get_method_generic:
* @klass: a class
* @method: a method
*
* Given a class and a generic method, which has to be of an
* instantiation of the same class that klass is an instantiation of,
* returns the corresponding method in klass. Example:
*
* klass is Gen<string>
* method is Gen<object>.work<int>
*
* returns: Gen<string>.work<int>
*/
MonoMethod*
mono_class_get_method_generic (MonoClass *klass, MonoMethod *method)
{
MonoMethod *declaring, *m;
int i;
if (method->is_inflated)
declaring = mono_method_get_declaring_generic_method (method);
else
declaring = method;
m = NULL;
if (klass->generic_class)
m = mono_class_get_inflated_method (klass, declaring);
if (!m) {
mono_class_setup_methods (klass);
if (klass->exception_type)
return NULL;
for (i = 0; i < klass->method.count; ++i) {
m = klass->methods [i];
if (m == declaring)
break;
if (m->is_inflated && mono_method_get_declaring_generic_method (m) == declaring)
break;
}
if (i >= klass->method.count)
return NULL;
}
if (method != declaring) {
MonoGenericContext context;
context.class_inst = NULL;
context.method_inst = mono_method_get_context (method)->method_inst;
m = mono_class_inflate_generic_method (m, &context);
}
return m;
}
static gpointer
inflate_other_data (gpointer data, int info_type, MonoGenericContext *context, MonoClass *class, gboolean temporary)
{
MonoError error;
g_assert (data);
if (data == MONO_RGCTX_SLOT_USED_MARKER)
return MONO_RGCTX_SLOT_USED_MARKER;
switch (info_type)
{
case MONO_RGCTX_INFO_STATIC_DATA:
case MONO_RGCTX_INFO_KLASS:
case MONO_RGCTX_INFO_VTABLE:
case MONO_RGCTX_INFO_TYPE:
case MONO_RGCTX_INFO_REFLECTION_TYPE: {
gpointer result = mono_class_inflate_generic_type_with_mempool (temporary ? NULL : class->image,
data, context, &error);
g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
return result;
}
case MONO_RGCTX_INFO_METHOD:
case MONO_RGCTX_INFO_GENERIC_METHOD_CODE:
case MONO_RGCTX_INFO_METHOD_RGCTX:
case MONO_RGCTX_INFO_METHOD_CONTEXT:
case MONO_RGCTX_INFO_REMOTING_INVOKE_WITH_CHECK: {
MonoMethod *method = data;
MonoMethod *inflated_method;
MonoType *inflated_type = mono_class_inflate_generic_type (&method->klass->byval_arg, context);
MonoClass *inflated_class = mono_class_from_mono_type (inflated_type);
mono_metadata_free_type (inflated_type);
mono_class_init (inflated_class);
g_assert (!method->wrapper_type);
if (inflated_class->byval_arg.type == MONO_TYPE_ARRAY ||
inflated_class->byval_arg.type == MONO_TYPE_SZARRAY) {
inflated_method = mono_method_search_in_array_class (inflated_class,
method->name, method->signature);
} else {
inflated_method = mono_class_inflate_generic_method (method, context);
}
mono_class_init (inflated_method->klass);
g_assert (inflated_method->klass == inflated_class);
return inflated_method;
}
case MONO_RGCTX_INFO_CLASS_FIELD: {
MonoClassField *field = data;
MonoType *inflated_type = mono_class_inflate_generic_type (&field->parent->byval_arg, context);
MonoClass *inflated_class = mono_class_from_mono_type (inflated_type);
int i = field - field->parent->fields;
gpointer dummy = NULL;
mono_metadata_free_type (inflated_type);
mono_class_get_fields (inflated_class, &dummy);
g_assert (inflated_class->fields);
return &inflated_class->fields [i];
}
default:
g_assert_not_reached ();
}
/* Not reached, quiet compiler */
return NULL;
}
static gpointer
inflate_other_info (MonoRuntimeGenericContextOtherInfoTemplate *oti,
MonoGenericContext *context, MonoClass *class, gboolean temporary)
{
return inflate_other_data (oti->data, oti->info_type, context, class, temporary);
}
static void
free_inflated_info (int info_type, gpointer info)
{
if (!info)
return;
switch (info_type) {
case MONO_RGCTX_INFO_STATIC_DATA:
case MONO_RGCTX_INFO_KLASS:
case MONO_RGCTX_INFO_VTABLE:
case MONO_RGCTX_INFO_TYPE:
case MONO_RGCTX_INFO_REFLECTION_TYPE:
mono_metadata_free_type (info);
break;
default:
break;
}
}
static MonoRuntimeGenericContextOtherInfoTemplate
class_get_rgctx_template_oti (MonoClass *class, int type_argc, guint32 slot, gboolean temporary, gboolean *do_free);
/*
* mono_class_get_runtime_generic_context_template:
* @class: a class
*
* Looks up or constructs, if necessary, the runtime generic context
* for class.
*/
static MonoRuntimeGenericContextTemplate*
mono_class_get_runtime_generic_context_template (MonoClass *class)
{
MonoRuntimeGenericContextTemplate *parent_template, *template;
guint32 i;
g_assert (!class->generic_class);
mono_loader_lock ();
template = class_lookup_rgctx_template (class);
mono_loader_unlock ();
if (template)
return template;
template = alloc_template (class);
mono_loader_lock ();
if (class->parent) {
if (class->parent->generic_class) {
guint32 num_entries;
int max_argc, type_argc;
parent_template = mono_class_get_runtime_generic_context_template
(class->parent->generic_class->container_class);
max_argc = template_get_max_argc (parent_template);
for (type_argc = 0; type_argc <= max_argc; ++type_argc) {
num_entries = rgctx_template_num_other_infos (parent_template, type_argc);
/* FIXME: quadratic! */
for (i = 0; i < num_entries; ++i) {
MonoRuntimeGenericContextOtherInfoTemplate oti;
oti = class_get_rgctx_template_oti (class->parent, type_argc, i, FALSE, NULL);
if (oti.data && oti.data != MONO_RGCTX_SLOT_USED_MARKER) {
rgctx_template_set_other_slot (class->image, template, type_argc, i,
oti.data, oti.info_type);
}
}
}
} else {
MonoRuntimeGenericContextOtherInfoTemplate *oti;
int max_argc, type_argc;
parent_template = mono_class_get_runtime_generic_context_template (class->parent);
max_argc = template_get_max_argc (parent_template);
for (type_argc = 0; type_argc <= max_argc; ++type_argc) {
/* FIXME: quadratic! */
for (i = 0, oti = parent_template->other_infos; oti; ++i, oti = oti->next) {
if (oti->data && oti->data != MONO_RGCTX_SLOT_USED_MARKER) {
rgctx_template_set_other_slot (class->image, template, type_argc, i,
oti->data, oti->info_type);
}
}
}
}
}
if (class_lookup_rgctx_template (class)) {
/* some other thread already set the template */
template = class_lookup_rgctx_template (class);
} else {
class_set_rgctx_template (class, template);
if (class->parent)
register_generic_subclass (class);
}
mono_loader_unlock ();
return template;
}
/*
* temporary signifies whether the inflated info (oti.data) will be
* used temporarily, in which case it might be heap-allocated, or
* permanently, in which case it will be mempool-allocated. If
* temporary is set then *do_free will return whether the returned
* data must be freed.
*
* LOCKING: loader lock
*/
static MonoRuntimeGenericContextOtherInfoTemplate
class_get_rgctx_template_oti (MonoClass *class, int type_argc, guint32 slot, gboolean temporary, gboolean *do_free)
{
g_assert ((temporary && do_free) || (!temporary && !do_free));
if (class->generic_class) {
MonoRuntimeGenericContextOtherInfoTemplate oti;
gboolean tmp_do_free;
oti = class_get_rgctx_template_oti (class->generic_class->container_class,
type_argc, slot, TRUE, &tmp_do_free);
if (oti.data) {
gpointer info = oti.data;
oti.data = inflate_other_info (&oti, &class->generic_class->context, class, temporary);
if (tmp_do_free)
free_inflated_info (oti.info_type, info);
}
if (temporary)
*do_free = TRUE;
return oti;
} else {
MonoRuntimeGenericContextTemplate *template;
MonoRuntimeGenericContextOtherInfoTemplate *oti;
template = mono_class_get_runtime_generic_context_template (class);
oti = rgctx_template_get_other_slot (template, type_argc, slot);
g_assert (oti);
if (temporary)
*do_free = FALSE;
return *oti;
}
}
static MonoClass*
class_uninstantiated (MonoClass *class)
{
if (class->generic_class)
return class->generic_class->container_class;
return class;
}
static gpointer
class_type_info (MonoDomain *domain, MonoClass *class, int info_type)
{
switch (info_type) {
case MONO_RGCTX_INFO_STATIC_DATA: {
MonoVTable *vtable = mono_class_vtable (domain, class);
if (!vtable)
mono_raise_exception (mono_class_get_exception_for_failure (class));
return vtable->data;
}
case MONO_RGCTX_INFO_KLASS:
return class;
case MONO_RGCTX_INFO_VTABLE: {
MonoVTable *vtable = mono_class_vtable (domain, class);
if (!vtable)
mono_raise_exception (mono_class_get_exception_for_failure (class));
return vtable;
}
default:
g_assert_not_reached ();
}
/* Not reached */
return NULL;
}
static gpointer
instantiate_other_info (MonoDomain *domain, MonoRuntimeGenericContextOtherInfoTemplate *oti,
MonoGenericContext *context, MonoClass *class)
{
gpointer data;
gboolean temporary;
if (!oti->data)
return NULL;
switch (oti->info_type) {
case MONO_RGCTX_INFO_STATIC_DATA:
case MONO_RGCTX_INFO_KLASS:
case MONO_RGCTX_INFO_VTABLE:
temporary = TRUE;
break;
default:
temporary = FALSE;
}
data = inflate_other_info (oti, context, class, temporary);
switch (oti->info_type) {
case MONO_RGCTX_INFO_STATIC_DATA:
case MONO_RGCTX_INFO_KLASS:
case MONO_RGCTX_INFO_VTABLE: {
MonoClass *arg_class = mono_class_from_mono_type (data);
free_inflated_info (oti->info_type, data);
g_assert (arg_class);
/* The class might be used as an argument to
mono_value_copy(), which requires that its GC
descriptor has been computed. */
if (oti->info_type == MONO_RGCTX_INFO_KLASS)
mono_class_compute_gc_descriptor (arg_class);
return class_type_info (domain, arg_class, oti->info_type);
}
case MONO_RGCTX_INFO_TYPE:
return data;
case MONO_RGCTX_INFO_REFLECTION_TYPE:
return mono_type_get_object (domain, data);
case MONO_RGCTX_INFO_METHOD:
return data;
case MONO_RGCTX_INFO_GENERIC_METHOD_CODE:
/*
* We can't create a jump trampoline here, as it cannot be patched.
*/
return mono_create_ftnptr (mono_domain_get (), mono_compile_method (data));
case MONO_RGCTX_INFO_REMOTING_INVOKE_WITH_CHECK:
return mono_create_ftnptr (mono_domain_get (), mono_compile_method (mono_marshal_get_remoting_invoke_with_check (data)));
case MONO_RGCTX_INFO_CLASS_FIELD:
return data;
case MONO_RGCTX_INFO_METHOD_RGCTX: {
MonoMethodInflated *method = data;
MonoVTable *vtable;
g_assert (method->method.method.is_inflated);
g_assert (method->context.method_inst);
vtable = mono_class_vtable (domain, method->method.method.klass);
if (!vtable)
mono_raise_exception (mono_class_get_exception_for_failure (method->method.method.klass));
return mono_method_lookup_rgctx (vtable, method->context.method_inst);
}
case MONO_RGCTX_INFO_METHOD_CONTEXT: {
MonoMethodInflated *method = data;
g_assert (method->method.method.is_inflated);
g_assert (method->context.method_inst);
return method->context.method_inst;
}
default:
g_assert_not_reached ();
}
/* Not reached */
return NULL;
}
/*
* LOCKING: loader lock
*/
static void
fill_in_rgctx_template_slot (MonoClass *class, int type_argc, int index, gpointer data, int info_type)
{
MonoRuntimeGenericContextTemplate *template = mono_class_get_runtime_generic_context_template (class);
MonoClass *subclass;
g_assert (!class->generic_class);
rgctx_template_set_other_slot (class->image, template, type_argc, index, data, info_type);
/* Recurse for all subclasses */
if (generic_subclass_hash)
subclass = g_hash_table_lookup (generic_subclass_hash, class);
else
subclass = NULL;
while (subclass) {
MonoRuntimeGenericContextOtherInfoTemplate subclass_oti;
MonoRuntimeGenericContextTemplate *subclass_template = class_lookup_rgctx_template (subclass);
g_assert (!subclass->generic_class);
g_assert (subclass_template);
subclass_oti = class_get_rgctx_template_oti (subclass->parent, type_argc, index, FALSE, NULL);
g_assert (subclass_oti.data);
fill_in_rgctx_template_slot (subclass, type_argc, index, subclass_oti.data, info_type);
subclass = subclass_template->next_subclass;
}
}
/*
* LOCKING: loader lock
*/
static int
register_other_info (MonoClass *class, int type_argc, gpointer data, int info_type)
{
int i;
MonoRuntimeGenericContextTemplate *template = mono_class_get_runtime_generic_context_template (class);
MonoClass *parent;
MonoRuntimeGenericContextOtherInfoTemplate *oti;
for (i = 0, oti = get_other_info_templates (template, type_argc); oti; ++i, oti = oti->next) {
if (!oti->data)
break;
}
//g_print ("template %s . other_infos [%d] = %s\n", mono_type_get_full_name (class), i, mono_type_get_full_name (other_class));
/* Mark the slot as used in all parent classes (until we find
a parent class which already has it marked used). */
parent = class->parent;
while (parent != NULL) {
MonoRuntimeGenericContextTemplate *parent_template;
MonoRuntimeGenericContextOtherInfoTemplate *oti;
if (parent->generic_class)
parent = parent->generic_class->container_class;
parent_template = mono_class_get_runtime_generic_context_template (parent);
oti = rgctx_template_get_other_slot (parent_template, type_argc, i);
if (oti && oti->data)
break;
rgctx_template_set_other_slot (parent->image, parent_template, type_argc, i,
MONO_RGCTX_SLOT_USED_MARKER, 0);
parent = parent->parent;
}
/* Fill in the slot in this class and in all subclasses
recursively. */
fill_in_rgctx_template_slot (class, type_argc, i, data, info_type);
return i;
}
static gboolean
other_info_equal (gpointer data1, gpointer data2, int info_type)
{
switch (info_type) {
case MONO_RGCTX_INFO_STATIC_DATA:
case MONO_RGCTX_INFO_KLASS:
case MONO_RGCTX_INFO_VTABLE:
case MONO_RGCTX_INFO_TYPE:
case MONO_RGCTX_INFO_REFLECTION_TYPE:
return mono_class_from_mono_type (data1) == mono_class_from_mono_type (data2);
case MONO_RGCTX_INFO_METHOD:
case MONO_RGCTX_INFO_GENERIC_METHOD_CODE:
case MONO_RGCTX_INFO_CLASS_FIELD:
case MONO_RGCTX_INFO_METHOD_RGCTX:
case MONO_RGCTX_INFO_METHOD_CONTEXT:
case MONO_RGCTX_INFO_REMOTING_INVOKE_WITH_CHECK:
return data1 == data2;
default:
g_assert_not_reached ();
}
/* never reached */
return FALSE;
}
static int
lookup_or_register_other_info (MonoClass *class, int type_argc, gpointer data, int info_type,
MonoGenericContext *generic_context)
{
static gboolean inited = FALSE;
static int max_slot = 0;
MonoRuntimeGenericContextTemplate *rgctx_template =
mono_class_get_runtime_generic_context_template (class);
MonoRuntimeGenericContextOtherInfoTemplate *oti_list, *oti;
int i;
g_assert (!class->generic_class);
g_assert (class->generic_container || type_argc);
mono_loader_lock ();
oti_list = get_other_info_templates (rgctx_template, type_argc);
for (oti = oti_list, i = 0; oti; oti = oti->next, ++i) {
gpointer inflated_data;
if (oti->info_type != info_type || !oti->data)
continue;
inflated_data = inflate_other_info (oti, generic_context, class, TRUE);
if (other_info_equal (data, inflated_data, info_type)) {
free_inflated_info (info_type, inflated_data);
mono_loader_unlock ();
return i;
}
free_inflated_info (info_type, inflated_data);
}
/* We haven't found the info */
i = register_other_info (class, type_argc, data, info_type);
mono_loader_unlock ();
if (!inited) {
mono_counters_register ("RGCTX max slot number", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &max_slot);
inited = TRUE;
}
if (i > max_slot)
max_slot = i;
return i;
}
/*
* mono_method_lookup_or_register_other_info:
* @method: a method
* @in_mrgctx: whether to put the data into the MRGCTX
* @data: the info data
* @info_type: the type of info to register about data
* @generic_context: a generic context
*
* Looks up and, if necessary, adds information about other_class in
* method's or method's class runtime generic context. Returns the