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

pkg/log/rate_limited.go

@@ -0,0 +1,63 @@
+// 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 log
+
+import (
+	"time"
+
+	"golang.org/x/time/rate"
+)
+
+type rateLimitedLogger struct {
+	logger Logger
+	limit  *rate.Limiter
+}
+
+func (rl *rateLimitedLogger) Debugf(format string, v ...any) {
+	if rl.limit.Allow() {
+		rl.logger.Debugf(format, v...)
+	}
+}
+
+func (rl *rateLimitedLogger) Infof(format string, v ...any) {
+	if rl.limit.Allow() {
+		rl.logger.Infof(format, v...)
+	}
+}
+
+func (rl *rateLimitedLogger) Warningf(format string, v ...any) {
+	if rl.limit.Allow() {
+		rl.logger.Warningf(format, v...)
+	}
+}
+
+func (rl *rateLimitedLogger) IsLogging(level Level) bool {
+	return rl.logger.IsLogging(level)
+}
+
+// BasicRateLimitedLogger returns a Logger that logs to the global logger no
+// more than once per the provided duration.
+func BasicRateLimitedLogger(every time.Duration) Logger {
+	return RateLimitedLogger(Log(), every)
+}
+
+// RateLimitedLogger returns a Logger that logs to the provided logger no more
+// than once per the provided duration.
+func RateLimitedLogger(logger Logger, every time.Duration) Logger {
+	return &rateLimitedLogger{
+		logger: logger,
+		limit:  rate.NewLimiter(rate.Every(every), 1),
+	}
+}