// Copyright 2021 The gVisor Authors.
//
// 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 control

import (
	"gvisor.dev/gvisor/pkg/sentry/kernel"
)

// Lifecycle provides functions related to starting and stopping tasks.
type Lifecycle struct {
	Kernel *kernel.Kernel
}

// Pause pauses all tasks, blocking until they are stopped.
func (l *Lifecycle) Pause(_, _ *struct{}) error {
	l.Kernel.Pause()
	return nil
}

// Resume resumes all tasks.
func (l *Lifecycle) Resume(_, _ *struct{}) error {
	l.Kernel.Unpause()
	return nil
}