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// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 stress

import "github.com/elastic/beats/libbeat/common/atomic"

type closeSignaler struct {
	active atomic.Bool
	done   chan struct{}
}

func newCloseSignaler() *closeSignaler {
	return &closeSignaler{
		active: atomic.MakeBool(true),
		done:   make(chan struct{}),
	}
}

func (s *closeSignaler) Close() {
	if act := s.active.Swap(false); act {
		close(s.done)
	}
}

func (s *closeSignaler) Active() bool {
	return s.active.Load()
}

func (s *closeSignaler) C() <-chan struct{} {
	return s.done
}
