/*
 * Copyright 2018-present Open Networking Foundation

 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at

 * http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package device

import (
	ofp "github.com/opencord/voltha-protos/v3/go/openflow_13"
)

// listDeviceGroups returns logical device flow groups
func (agent *Agent) listDeviceGroups() map[uint32]*ofp.OfpGroupEntry {
	groupIDs := agent.groupLoader.List()
	groups := make(map[uint32]*ofp.OfpGroupEntry, len(groupIDs))
	for groupID := range groupIDs {
		if groupHandle, have := agent.groupLoader.Lock(groupID); have {
			groups[groupID] = groupHandle.GetReadOnly()
			groupHandle.Unlock()
		}
	}
	return groups
}