Files
container/Sources/Containerization/VirtualMachineInstance.swift
T
Danny Canter 056a909081 VirtualMachineManager: Rework protocol (#341)
Today this protocols create method is just odd. Our only implementation
of it immediately casts to LinuxContainer, failing if it cannot do so. I
think what might make more sense is to pass in a configuration itself
with core parameters that we expect every vmm to be able to support, and
then in a specific implementation they can continue to cast this type to
a specific one to possibly extract some extra configuration values
(rosetta for VZ for example).

This rework will also make it simpler to support a Pod type, as the vm
setup is identical and simple.
2025-10-21 01:23:00 -07:00

64 lines
2.2 KiB
Swift

//===----------------------------------------------------------------------===//
// Copyright © 2025 Apple Inc. and the Containerization project 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
//
// https://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.
//===----------------------------------------------------------------------===//
import ContainerizationError
import Foundation
/// The runtime state of the virtual machine instance.
public enum VirtualMachineInstanceState: Sendable {
case starting
case running
case stopped
case stopping
case unknown
}
/// A live instance of a virtual machine.
public protocol VirtualMachineInstance: Sendable {
associatedtype Agent: VirtualMachineAgent
// The state of the virtual machine.
var state: VirtualMachineInstanceState { get }
var mounts: [String: [AttachedFilesystem]] { get }
/// Dial the Agent. It's up the VirtualMachineInstance to determine
/// what port the agent is listening on.
func dialAgent() async throws -> Agent
/// Dial a vsock port in the guest.
func dial(_ port: UInt32) async throws -> FileHandle
/// Listen on a host vsock port.
func listen(_ port: UInt32) throws -> VsockConnectionStream
/// Stop listening on a vsock port.
func stopListen(_ port: UInt32) throws
/// Start the virtual machine.
func start() async throws
/// Stop the virtual machine.
func stop() async throws
/// Pause the virtual machine.
func pause() async throws
/// Resume the virtual machine.
func resume() async throws
}
extension VirtualMachineInstance {
func pause() async throws {
throw ContainerizationError(.unsupported, message: "pause")
}
func resume() async throws {
throw ContainerizationError(.unsupported, message: "resume")
}
}