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Load plugins separately from initializing

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Add separate mutter_plugin_manager_load() and
mutter_plugin_manager_initialize() calls so that we can just
load the plugins without start them. This is useful for introspecting
a gnome-shell plugin at build time.

http://bugzilla.gnome.org/show_bug.cgi?id=580032
This commit is contained in:
Colin Walters 2008-11-13 17:06:07 -05:00 committed by Owen W. Taylor
parent 52638b9d8e
commit a4746d75e6
3 changed files with 54 additions and 28 deletions
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4
src/compositor/mutter/compositor-mutter.c
View File

@ -1906,6 +1906,10 @@ clutter_cmp_manage_screen (MetaCompositor *compositor,
info->plugin_mgr =
mutter_plugin_manager_new (screen);
if (!mutter_plugin_manager_load (info->plugin_mgr))
g_critical ("failed to load plugins");
if (!mutter_plugin_manager_initialize (info->plugin_mgr))
g_critical ("failed to initialize plugins");
/*
* Delay the creation of the overlay window as long as we can, to avoid

76
src/compositor/mutter/mutter-plugin-manager.c
View File

@ -41,12 +41,19 @@ struct MutterPluginManager
{
MetaScreen *screen;
GList *plugins;
GList *unload; /* Plugins that are disabled and pending unload */
GList /* MutterPluginPending */ *pending_plugin_modules; /* Plugins not yet fully loaded */
GList /* MutterPlugin */ *plugins; /* TODO -- maybe use hash table */
GList *unload; /* Plugins that are disabled and pending unload */
guint idle_unload_id;
};
typedef struct MutterPluginPending
{
MutterModule *module;
char *path;
char *params;
} MutterPluginPending;
/*
* Checks that the plugin is compatible with the WM and sets up the plugin
@ -200,7 +207,7 @@ mutter_plugin_manager_get_module (const gchar *path)
/*
* Loads all plugins listed in gconf registry.
*/
static gboolean
gboolean
mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
{
const gchar *dpath = MUTTER_PLUGIN_DIR "/";
@ -246,7 +253,6 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
if (module)
{
MutterPlugin *p;
gboolean use_succeeded;
/*
@ -258,18 +264,15 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
*/
use_succeeded = g_type_module_use (G_TYPE_MODULE (module));
if (use_succeeded &&
(p = mutter_plugin_load (plugin_mgr, module, params)))
{
plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, p);
}
else
{
g_warning ("Plugin load for [%s] failed", path);
}
if (use_succeeded)
g_type_module_unuse (G_TYPE_MODULE (module));
{
MutterPluginPending *pending = g_new0 (MutterPluginPending, 1);
pending->module = module;
pending->path = g_strdup (path);
pending->params = g_strdup (params);
plugin_mgr->pending_plugin_modules =
g_list_prepend (plugin_mgr->pending_plugin_modules, pending);
}
}
else
g_warning ("Unable to load plugin module [%s]: %s",
@ -286,7 +289,7 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
if (fallback)
g_slist_free (fallback);
if (plugin_mgr->plugins != NULL)
if (plugin_mgr->pending_plugin_modules != NULL)
{
meta_prefs_add_listener (prefs_changed_callback, plugin_mgr);
return TRUE;
@ -295,6 +298,35 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
return FALSE;
}
gboolean
mutter_plugin_manager_initialize (MutterPluginManager *plugin_mgr)
{
GList *iter;
for (iter = plugin_mgr->pending_plugin_modules; iter; iter = iter->next)
{
MutterPluginPending *pending = (MutterPluginPending*) iter->data;
MutterPlugin *p;
if ((p = mutter_plugin_load (plugin_mgr, pending->module, pending->params)))
{
plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, p);
}
else
{
g_warning ("Plugin load for [%s] failed", pending->path);
}
g_type_module_unuse (G_TYPE_MODULE (pending->module));
g_free (pending->path);
g_free (pending->params);
g_free (pending);
}
g_list_free (plugin_mgr->pending_plugin_modules);
plugin_mgr->pending_plugin_modules = NULL;
return TRUE;
}
/*
* Reloads all plugins
*/
@ -309,12 +341,6 @@ mutter_plugin_manager_reload (MutterPluginManager *plugin_mgr)
return mutter_plugin_manager_load (plugin_mgr);
}
static gboolean
mutter_plugin_manager_init (MutterPluginManager *plugin_mgr)
{
return mutter_plugin_manager_load (plugin_mgr);
}
MutterPluginManager *
mutter_plugin_manager_new (MetaScreen *screen)
{
@ -330,12 +356,6 @@ mutter_plugin_manager_new (MetaScreen *screen)
plugin_mgr->screen = screen;
if (!mutter_plugin_manager_init (plugin_mgr))
{
g_free (plugin_mgr);
plugin_mgr = NULL;
}
return plugin_mgr;
}

2
src/compositor/mutter/mutter-plugin-manager.h
View File

@ -34,6 +34,8 @@
typedef struct MutterPluginManager MutterPluginManager;
MutterPluginManager * mutter_plugin_manager_new (MetaScreen *screen);
gboolean mutter_plugin_manager_load (MutterPluginManager *mgr);
gboolean mutter_plugin_manager_initialize (MutterPluginManager *plugin_mgr);
gboolean mutter_plugin_manager_event_simple (MutterPluginManager *mgr,
MutterWindow *actor,
unsigned long event);