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bee231b9ff
ServerService used to own three mutexes coordinating six pieces of mutable state (exports, busy, controlState, controlSeq, controlSubs, LeaseManager). The lock-ordering rule that fixed the import/attach race in 0c892411a lived only as a comment. Two-mutex (fast/slow) ledger absorbs all of it; the two mutexes are never held simultaneously, so the ordering rule becomes a property of the type instead of a discipline callers must observe. TryReserveForImport closes the window where two concurrent OpReqImports could both pass the busy check before either marked busy.
sing-box
The universal proxy platform.
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Copyright (C) 2022 by nekohasekai <contact-sagernet@sekai.icu>
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