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QEMU tools cannot run in the app process on iOS: a process may load QEMU only once and qemu-img calls exit(). So disk snapshots of a stopped VM, reclaiming space, compression, resizing and conversion on import were macOS-only. iOS 26 brings ExtensionKit, so qemu-img now runs in an ExtensionKit extension (iOSHelper, and iOSHelper-SE for UTM SE since an extension's bundle identifier must be prefixed by its host's). The helper speaks the same QEMUHelperProtocol as the macOS XPC helper but loads the tool into its own process, one tool per process. UTMProcess accepts an injected connection so the remote path is shared with macOS, including file access through bookmarks, whose implicit security scope grants the resolving process access. UTMHelperProcess launches the helper and, because the system hands a process that is still exiting to a launch that comes too soon, tears it down with a handshake on the interruption callback and runs helpers one at a time. UTMQemuImage now reads the tool's output until it ends instead of racing the exit message, resumes its continuations off the XPC reply queue (a call made from that queue blocks in NSXPC), and stops the process explicitly since the connection's exported object kept it from ever being deallocated on macOS. The last stderr line becomes the error text when the tool gives none. Assisted-by: Claude:claude-fable-5-1
19 lines
693 B
C
19 lines
693 B
C
//
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// Copyright © 2026 Turing Software, LLC. All rights reserved.
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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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// http://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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#include "QEMUHelperProtocol.h"
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#include "QEMUHelperDelegate.h"
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