/*
* e-plugin-mono.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#include "e-plugin-mono.h"
#include <sys/types.h>
#include <string.h>
#include "e-plugin-mono.h"
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/object.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/threads.h>
#include <mono/metadata/mono-config.h>
#include <mono/jit/jit.h>
#define E_PLUGIN_MONO_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_PLUGIN_MONO, EPluginMonoPrivate))
struct _EPluginMonoPrivate {
MonoAssembly *assembly;
MonoClass *class;
MonoObject *plugin;
GHashTable *methods;
};
static MonoDomain *domain;
static gpointer parent_class;
static GType plugin_mono_type;
static gchar *
get_xml_prop (xmlNodePtr node, const gchar *id)
{
xmlChar *prop;
gchar *out = NULL;
prop = xmlGetProp (node, (xmlChar *) id);
if (prop != NULL) {
out = g_strdup ((gchar *) prop);
xmlFree (prop);
}
return out;
}
static void
plugin_mono_finalize (GObject *object)
{
EPluginMono *plugin_mono;
plugin_mono = E_PLUGIN_MONO (object);
g_free (plugin_mono->location);
g_free (plugin_mono->handler);
g_hash_table_destroy (plugin_mono->priv->methods);
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gint
plugin_mono_construct (EPlugin *plugin, xmlNodePtr root)
{
EPluginMono *plugin_mono;
/* Chain up to parent's construct() method. */
if (E_PLUGIN_CLASS (parent_class)->construct (plugin, root) == -1)
return -1;
plugin_mono = E_PLUGIN_MONO (plugin);
plugin_mono->location = get_xml_prop (root, "location");
plugin_mono->handler = get_xml_prop (root, "handler");
return (plugin_mono->location != NULL) ? 0 : -1;
}
/*
Two approaches:
You can have a Evolution.Plugin implementation which has every
callback as methods on it. Or you can just use static methods
for everything.
All methods take a single (structured) argument.
*/
static gpointer
plugin_mono_invoke (EPlugin *plugin,
const gchar *name,
gpointer data)
{
EPluginMono *plugin_mono;
EPluginMonoPrivate *priv;
MonoMethodDesc *d;
MonoMethod *m;
MonoObject *x = NULL, *res;
gpointer *params;
plugin_mono = E_PLUGIN_MONO (plugin);
priv = plugin_mono->priv;
/* we need to do this every time since we may be called from any thread for some uses */
mono_thread_attach (domain);
if (priv->assembly == NULL) {
priv->assembly = mono_domain_assembly_open (
domain, plugin_mono->location);
if (priv->assembly == NULL) {
g_warning (
"Can't load assembly '%s'",
plugin_mono->location);
return NULL;
}
if (plugin_mono->handler == NULL
|| (priv->class = mono_class_from_name (mono_assembly_get_image (priv->assembly), "", plugin_mono->handler)) == NULL) {
} else {
priv->plugin = mono_object_new (domain, priv->class);
/* could conceivably init with some context too */
mono_runtime_object_init (priv->plugin);
}
}
m = g_hash_table_lookup (priv->methods, name);
if (m == NULL) {
if (priv->class) {
/* class method */
MonoMethod* mono_method;
gpointer iter = NULL;
d = mono_method_desc_new (name, FALSE);
/*if (d == NULL) {
g_warning ("Can't create method descriptor for '%s'", name);
return NULL;
}*/
while ((mono_method = mono_class_get_methods (priv->class, &iter))) {
g_print ("\n\a Method name is : <%s>\n\a", mono_method_get_name (mono_method));
}
//mono_class_get_method_from_name
m = mono_class_get_method_from_name (priv->class, name, -1);
if (m == NULL) {
g_warning ("Can't find method callback '%s'", name);
return NULL;
}
} else {
/* static method */
d = mono_method_desc_new (name, FALSE);
if (d == NULL) {
g_warning ("Can't create method descriptor for '%s'", name);
return NULL;
}
m = mono_method_desc_search_in_image (d, mono_assembly_get_image (priv->assembly));
if (m == NULL) {
g_warning ("Can't find method callback '%s'", name);
return NULL;
}
}
g_hash_table_insert (priv->methods, g_strdup (name), m);
}
params = g_malloc0(sizeof (*params)*1);
params[0] = &data;
res = mono_runtime_invoke (m, priv->plugin, params, &x);
/* do i need to free params?? */
if (x)
mono_print_unhandled_exception (x);
if (res) {
gpointer *p = mono_object_unbox (res);
return *p;
} else
return NULL;
}
static void
plugin_mono_class_init (EPluginMonoClass *class)
{
GObjectClass *object_class;
EPluginClass *plugin_class;
parent_class = g_type_class_peek_parent (class);
g_type_class_add_private (class, sizeof (EPluginMonoPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->finalize = plugin_mono_finalize;
plugin_class = E_PLUGIN_CLASS (class);
plugin_class->construct = plugin_mono_construct;
plugin_class->invoke = plugin_mono_invoke;
plugin_class->type = "mono";
}
static void
plugin_mono_init (EPluginMono *plugin_mono)
{
GHashTable *methods;
methods = g_hash_table_new_full (
g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) NULL);
plugin_mono->priv = E_PLUGIN_MONO_GET_PRIVATE (plugin_mono);
plugin_mono->priv->methods = methods;
}
GType
e_plugin_mono_get_type (void)
{
return plugin_mono_type;
}
void
e_plugin_mono_register_type (GTypeModule *type_module)
{
static const GTypeInfo type_info = {
sizeof (EPluginMonoClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) plugin_mono_class_init,
(GClassFinalizeFunc) NULL,
NULL, /* class_data */
sizeof (EPluginMono),
0, /* n_preallocs */
(GInstanceInitFunc) plugin_mono_init,
NULL /* value_table */
};
plugin_mono_type = g_type_module_register_type (
type_module, E_TYPE_PLUGIN,
"EPluginMono", &type_info, 0);
domain = mono_jit_init ("Evolution");
mono_thread_attach (domain);
}
