wehub-resource-sync
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47 lines
2.0 KiB
Swift
47 lines
2.0 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2026 Apple Inc. and the Containerization project authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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#if os(Linux)
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import CloudHypervisor
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/// Extension hook for `CHVirtualMachineInstance` lifecycle. Append conforming
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/// types to `Configuration.extensions` to participate in VM setup and
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/// teardown without subclassing.
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///
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/// All methods have no-op defaults so a conforming type only needs to
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/// implement the hooks it actually cares about.
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public protocol CHInstanceExtension: Sendable {
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/// Mutate the cloud-hypervisor `VmConfig` before the VM is created.
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/// Called by `start()` after the base config is built but before
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/// `vm.create` is dispatched to the VMM.
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func configureCH(_ config: inout CloudHypervisor.VmConfig) throws
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/// Called once the VM has been created and booted but before
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/// `start()` returns to the caller.
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func didCreate(_ instance: CHVirtualMachineInstance) throws
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/// Called from `stop()` before the VM is shut down. Errors are
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/// best-effort — `stop()` swallows them.
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func willStop(_ instance: CHVirtualMachineInstance) async throws
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}
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extension CHInstanceExtension {
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public func configureCH(_ config: inout CloudHypervisor.VmConfig) throws {}
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public func didCreate(_ instance: CHVirtualMachineInstance) throws {}
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public func willStop(_ instance: CHVirtualMachineInstance) async throws {}
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}
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#endif
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