diff options
Diffstat (limited to 'libdino/src/plugin/loader.vala')
| -rw-r--r-- | libdino/src/plugin/loader.vala | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libdino/src/plugin/loader.vala b/libdino/src/plugin/loader.vala new file mode 100644 index 00000000..43ce0801 --- /dev/null +++ b/libdino/src/plugin/loader.vala @@ -0,0 +1,66 @@ +namespace Dino.Plugins { + +public errordomain Error { + NOT_SUPPORTED, + UNEXPECTED_TYPE, + NO_REGISTRATION_FUNCTION, + FAILED +} + +private class Info : Object { + public Module module; + public Type gtype; + + public Info(Type type, owned Module module) { + this.module = (owned) module; + this.gtype = type; + } +} + +public class Loader : Object { + [CCode (has_target = false)] + private delegate Type RegisterPluginFunction (Module module); + + private RootInterface[] plugins = new RootInterface[0]; + private Info[] infos = new Info[0]; + + public RootInterface load(string name, Dino.Application app) throws Error { + if (Module.supported () == false) { + throw new Error.NOT_SUPPORTED ("Plugins are not supported"); + } + + Module module = Module.open ("plugins/" + name, ModuleFlags.BIND_LAZY); + if (module == null) { + throw new Error.FAILED (Module.error ()); + } + + void* function; + module.symbol ("register_plugin", out function); + if (function == null) { + throw new Error.NO_REGISTRATION_FUNCTION ("register_plugin () not found"); + } + + RegisterPluginFunction register_plugin = (RegisterPluginFunction) function; + Type type = register_plugin (module); + if (type.is_a (typeof (RootInterface)) == false) { + throw new Error.UNEXPECTED_TYPE ("Unexpected type"); + } + + Info info = new Plugins.Info (type, (owned) module); + infos += info; + + RootInterface plugin = (RootInterface) Object.new (type); + plugins += plugin; + plugin.registered (app); + + return plugin; + } + + public void shutdown() { + foreach (RootInterface p in plugins) { + p.shutdown(); + } + } +} + +}
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