解析Golang sync.Mutex源码-note
2022-12-19 本文已影响0人
robertzhai
代码路径
- /usr/local/go/go17/src/sync/mutex.go
数据结构
// A Mutex is a mutual exclusion lock.
// The zero value for a Mutex is an unlocked mutex.
//
// A Mutex must not be copied after first use.
type Mutex struct {
state int32 // mutex锁当前的状态
sema uint32 // 信号量，用于唤醒goroutine
}
// A Locker represents an object that can be locked and unlocked.
type Locker interface {
Lock()
Unlock()
}
lock
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unlock
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