mutex

Documentation

Index

• type Mutex
  • func (m *Mutex) Count() int
  • func (m *Mutex) IsLocked() bool
  • func (m *Mutex) IsStarving() bool
  • func (m *Mutex) IsWoken() bool
  • func (m *Mutex) TryLock() bool
• type RecursiveMutex
  • func (m *RecursiveMutex) Lock()
  • func (m *RecursiveMutex) Unlock()
• type TokenRecursiveMutex
  • func (m *TokenRecursiveMutex) Lock(token int64)
  • func (m *TokenRecursiveMutex) Unlock(token int64)

Types

type Mutex

type Mutex struct {
	sync.Mutex
}

扩展一个Mutex结构

func (*Mutex) Count

func (m *Mutex) Count() int

* * @Description: 获取等待这把锁的 goroutine 的总数 * @return: int * @Author: Iori * @Date: 2023-06-09 14:41:52 *

func (*Mutex) IsLocked

func (m *Mutex) IsLocked() bool

锁是否被持有

func (*Mutex) IsStarving

func (m *Mutex) IsStarving() bool

锁是否处于饥饿状态

func (*Mutex) IsWoken

func (m *Mutex) IsWoken() bool

是否有等待者被唤醒

func (*Mutex) TryLock

func (m *Mutex) TryLock() bool

尝试获取锁 PS：在 Go 1.18 官方标准库中，已经为 Mutex/RWMutex 增加了 TryLock 方法。

type RecursiveMutex

type RecursiveMutex struct {
	sync.Mutex
	// contains filtered or unexported fields
}

RecursiveMutex 包装一个Mutex,实现可重入

func (*RecursiveMutex) Lock

func (m *RecursiveMutex) Lock()

func (*RecursiveMutex) Unlock

func (m *RecursiveMutex) Unlock()

type TokenRecursiveMutex

type TokenRecursiveMutex struct {
	sync.Mutex
	// contains filtered or unexported fields
}

Token方式的递归锁

func (*TokenRecursiveMutex) Lock

func (m *TokenRecursiveMutex) Lock(token int64)

请求锁，需要传入token

func (*TokenRecursiveMutex) Unlock

func (m *TokenRecursiveMutex) Unlock(token int64)

释放锁