gvisor-lx/pkg/sync/locking/locking.go
Leadaxe 2c4ae3b0a4 snapshot: sagernet/gvisor v0.0.0-20250811.0-sing-box-mod.1
Содержимое пина, зафиксированного в go.mod sing-box-lx, одним коммитом
без истории. Полная история SagerNet/gvisor — 1.45 ГБ и клонируется в
каждой CI-джобе; наша дельта — одна вставка в одну функцию, история для
неё не нужна.

Module path github.com/sagernet/gvisor сохранён намеренно: на него
опирается replace-директива суперпроекта.

Патч поверх — отдельным коммитом, чтобы дельта читалась одним git show
и переносилась на новый пин копированием.

SPECS/TASKS/048-GVISOR_HANDSHAKE_NIL_CRASH
2026-08-04 15:50:08 +03:00

28 lines
1.3 KiB
Go

// Copyright 2022 The gVisor 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
//
// http://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.
// Package locking implements lock primitives with the correctness validator.
//
// All mutexes are divided on classes and the validator check following conditions:
// - Mutexes of the same class are not taken more than once except cases when
// that is expected.
// - Mutexes are never locked in a reverse order. Lock dependencies are tracked
// on the class level.
//
// The validator is implemented in a very straightforward way. For each mutex
// class, we maintain the ancestors list of all classes that have ever been
// taken before the target one. For each goroutine, we have the list of
// currently locked mutexes. And finally, all lock methods check that
// ancestors of currently locked mutexes don't contain the target one.
package locking