libpurple/plugins/mono/loader/mono.c

branch
cpw.khc.msnp14
changeset 20478
46933dc62880
parent 20472
6a6d2ef151e6
parent 15938
1b037158411e
child 20481
65485e2ed8a3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libpurple/plugins/mono/loader/mono.c	Sun Apr 15 03:43:17 2007 +0000
@@ -0,0 +1,233 @@
+/*
+ * Mono Plugin Loader
+ *
+ * -- Thanks to the perl plugin loader for all the great tips ;-)
+ *
+ * Eoin Coffey
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "internal.h"
+#include "debug.h"
+#include "plugin.h"
+#include "version.h"
+#include "mono-helper.h"
+
+#define MONO_PLUGIN_ID "core-mono"
+
+/******************************************************************************
+ * Loader Stuff
+ *****************************************************************************/
+/* probes the given plugin to determine if its a plugin */
+static gboolean probe_mono_plugin(PurplePlugin *plugin)
+{
+	MonoAssembly *assm;
+	MonoMethod *m = NULL;
+	MonoObject *plugin_info;
+	gboolean found_load = FALSE, found_unload = FALSE, found_destroy = FALSE;
+	gpointer iter = NULL;
+
+	PurplePluginInfo *info;
+	PurpleMonoPlugin *mplug;
+
+	char *file = plugin->path;
+
+	assm = mono_domain_assembly_open(ml_get_domain(), file);
+
+	if (!assm) {
+		return FALSE;
+	} 
+
+	purple_debug(PURPLE_DEBUG_INFO, "mono", "Probing plugin\n");
+
+	if (ml_is_api_dll(mono_assembly_get_image(assm))) {
+		purple_debug(PURPLE_DEBUG_INFO, "mono", "Found our PurpleAPI.dll\n");
+		return FALSE;
+	}
+
+	info = g_new0(PurplePluginInfo, 1);
+	mplug = g_new0(PurpleMonoPlugin, 1);
+	
+	mplug->signal_data = NULL;
+
+	mplug->assm = assm;
+
+	mplug->klass = ml_find_plugin_class(mono_assembly_get_image(mplug->assm));
+	if (!mplug->klass) {
+		purple_debug(PURPLE_DEBUG_ERROR, "mono", "no plugin class in \'%s\'\n", file);
+		return FALSE;
+	}
+
+	mplug->obj = mono_object_new(ml_get_domain(), mplug->klass);
+	if (!mplug->obj) {
+		purple_debug(PURPLE_DEBUG_ERROR, "mono", "obj not valid\n");
+		return FALSE;
+	}
+
+	mono_runtime_object_init(mplug->obj);
+
+	while ((m = mono_class_get_methods(mplug->klass, &iter))) {
+		purple_debug_info("mono", "plugin method: %s\n", mono_method_get_name(m));
+		if (strcmp(mono_method_get_name(m), "Load") == 0) {
+			mplug->load = m;
+			found_load = TRUE;
+		} else if (strcmp(mono_method_get_name(m), "Unload") == 0) {
+			mplug->unload = m;
+			found_unload = TRUE;
+		} else if (strcmp(mono_method_get_name(m), "Destroy") == 0) {
+			mplug->destroy = m;
+			found_destroy = TRUE;
+		}
+	}
+
+	if (!(found_load && found_unload && found_destroy)) {
+		purple_debug(PURPLE_DEBUG_ERROR, "mono", "did not find the required methods\n");
+		return FALSE;
+	}
+	
+	plugin_info = ml_get_info_prop(mplug->obj);
+
+	/* now that the methods are filled out we can populate
+	   the info struct with all the needed info */
+
+	info->id = ml_get_prop_string(plugin_info, "Id");
+	info->name = ml_get_prop_string(plugin_info, "Name");
+	info->version = ml_get_prop_string(plugin_info, "Version");
+	info->summary = ml_get_prop_string(plugin_info, "Summary");
+	info->description = ml_get_prop_string(plugin_info, "Description");
+	info->author = ml_get_prop_string(plugin_info, "Author");
+	info->homepage = ml_get_prop_string(plugin_info, "Homepage");
+
+	info->magic = PURPLE_PLUGIN_MAGIC;
+	info->major_version = PURPLE_MAJOR_VERSION;
+	info->minor_version = PURPLE_MINOR_VERSION;
+	info->type = PURPLE_PLUGIN_STANDARD;
+
+	/* this plugin depends on us; duh */
+	info->dependencies = g_list_append(info->dependencies, MONO_PLUGIN_ID);
+	mplug->plugin = plugin;
+				
+	plugin->info = info;
+	info->extra_info = mplug;
+
+	ml_add_plugin(mplug);
+
+	return purple_plugin_register(plugin);
+}
+
+/* Loads a Mono Plugin by calling 'load' in the class */
+static gboolean load_mono_plugin(PurplePlugin *plugin)
+{
+	PurpleMonoPlugin *mplug;
+
+	purple_debug(PURPLE_DEBUG_INFO, "mono", "Loading plugin\n");
+
+	mplug = (PurpleMonoPlugin*)plugin->info->extra_info;
+
+	ml_invoke(mplug->load, mplug->obj, NULL);
+
+	return TRUE;
+}
+
+/* Unloads a Mono Plugin by calling 'unload' in the class */
+static gboolean unload_mono_plugin(PurplePlugin *plugin)
+{
+	PurpleMonoPlugin *mplug;
+
+	purple_debug(PURPLE_DEBUG_INFO, "mono", "Unloading plugin\n");
+
+	mplug = (PurpleMonoPlugin*)plugin->info->extra_info;
+
+	purple_signals_disconnect_by_handle((gpointer)mplug->klass);
+	g_list_foreach(mplug->signal_data, (GFunc)g_free, NULL);
+	g_list_free(mplug->signal_data);
+	mplug->signal_data = NULL;
+
+	ml_invoke(mplug->unload, mplug->obj, NULL);
+
+	return TRUE;
+}
+
+static void destroy_mono_plugin(PurplePlugin *plugin)
+{
+	PurpleMonoPlugin *mplug;
+
+	purple_debug(PURPLE_DEBUG_INFO, "mono", "Destroying plugin\n");
+
+	mplug = (PurpleMonoPlugin*)plugin->info->extra_info;
+
+	ml_invoke(mplug->destroy, mplug->obj, NULL);
+
+	if (plugin->info) {
+		g_free(plugin->info->name);
+		g_free(plugin->info->version);
+		g_free(plugin->info->summary);
+		g_free(plugin->info->description);
+		g_free(plugin->info->author);
+		g_free(plugin->info->homepage);
+	}
+
+	if (mplug) {
+		if (mplug->assm) {
+			mono_assembly_close(mplug->assm);
+		}
+
+		g_free(mplug);
+		mplug = NULL;
+	}
+}
+
+/******************************************************************************
+ * Plugin Stuff
+ *****************************************************************************/
+static void plugin_destroy(PurplePlugin *plugin)
+{
+	ml_uninit();
+}
+
+static PurplePluginLoaderInfo loader_info =
+{
+	NULL,
+	probe_mono_plugin,
+	load_mono_plugin,
+	unload_mono_plugin,
+	destroy_mono_plugin
+};
+
+static PurplePluginInfo info =
+{
+	PURPLE_PLUGIN_MAGIC,
+	PURPLE_MAJOR_VERSION,
+	PURPLE_MINOR_VERSION,
+	PURPLE_PLUGIN_LOADER,
+	NULL,
+	0,
+	NULL,
+	PURPLE_PRIORITY_DEFAULT,
+	MONO_PLUGIN_ID,
+	N_("Mono Plugin Loader"),
+	VERSION,
+	N_("Loads .NET plugins with Mono."),
+	N_("Loads .NET plugins with Mono."),
+	"Eoin Coffey <ecoffey@simla.colostate.edu>",
+	PURPLE_WEBSITE,
+	NULL,
+	NULL,
+	plugin_destroy,
+	NULL,
+	&loader_info,
+	NULL,
+	NULL
+};
+
+static void init_plugin(PurplePlugin *plugin)
+{
+	ml_init();
+	
+	loader_info.exts = g_list_append(loader_info.exts, "dll");
+}
+
+PURPLE_INIT_PLUGIN(mono, init_plugin, info)

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