golang runtime2 代码
文件路径：/src/sync/runtime2.go
/ Copyright 2020 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/go:build !goexperiment.staticlockranking
package sync
import "unsafe"
/ Approximation of notifyList in runtime/sema.go. Size and alignment must
/ agree.
type notifyList struct {
wait uint32
notify uint32
lock uintptr / key field of the mutex
head unsafe.Pointer
tail unsafe.Pointer
}