feat: allow dynamic instances of non-hotplug plugins

Signed-off-by: Adriaan Schmidt <[email protected]>

Author: adriaan42

tuned/daemon/controller.py

@@ -467,10 +467,6 @@ def instance_create(self, plugin_name, instance_name, options, caller = None):
 			log.error(rets)
 			return (False, rets)
 		plugin = plugins[plugin_name]
-		if not isinstance(plugin, hotplug.Plugin):
-			rets = "Plugin '%s' does not support hotplugging or dynamic instances." % plugin.name
-			log.error(rets)
-			return (False, rets)
 		devices = options.pop("devices", None)
 		devices_udev_regex = options.pop("devices_udev_regex", None)
 		script_pre = options.pop("script_pre", None)
@@ -525,10 +521,6 @@ def instance_destroy(self, instance_name, caller = None):
 			log.error(rets)
 			return (False, rets)
 		plugin = instance.plugin
-		if not isinstance(plugin, hotplug.Plugin):
-			rets = "Plugin '%s' does not support hotplugging or dynamic instances." % plugin.name
-			log.error(rets)
-			return (False, rets)
 		devices = instance.processed_devices.copy()
 		try:
 			plugin._remove_devices_nocheck(instance, devices)

tuned/plugins/base.py

@@ -154,6 +154,9 @@ def _get_device_objects(self, devices):
 		return None
 
 	def _get_matching_devices(self, instance, devices):
+		if not self._devices_supported:
+			return set()
+
 		if instance.devices_udev_regex is None:
 			return set(self._device_matcher.match_list(instance.devices_expression, devices))
 		else:
@@ -164,6 +167,18 @@ def _get_matching_devices(self, instance, devices):
 			udev_devices = self._device_matcher_udev.match_list(instance.devices_udev_regex, udev_devices)
 			return set([x.sys_name for x in udev_devices])
 
+	def _add_device(self, device_name):
+		pass
+
+	def _add_devices_nocheck(self, instance, device_names):
+		pass
+
+	def _remove_device(self, device_name):
+		pass
+
+	def _remove_devices_nocheck(self, instance, device_names):
+		pass
+
 	def assign_free_devices(self, instance):
 		if not self._devices_supported:
 			return