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/*
* Copyright (c) 2021 AtLarge Research
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.opendc.compute.failure.hostfault
import kotlinx.coroutines.delay
import org.opendc.compute.simulator.host.SimHost
import org.opendc.compute.simulator.service.ComputeService
/**
* A type of [HostFault] where the hosts are stopped and recover after a given amount of time.
*/
public class StartStopHostFault(
private val service: ComputeService,
) : HostFault(service) {
override suspend fun apply(
victims: List<SimHost>,
faultDuration: Long,
) {
val client: ComputeService.ComputeClient = service.newClient()
for (host in victims) {
val guests = host.getGuests()
val snapshots = guests.map { it.virtualMachine!!.snapshot }
val tasks = guests.map { it.task }
host.fail()
for ((task, snapshot) in tasks.zip(snapshots)) {
client.rescheduleTask(task, snapshot)
}
}
delay(faultDuration)
for (host in victims) {
host.recover()
}
}
override fun toString(): String = "StartStopHostFault"
}
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