lock

Documentation

Index

• func ExampleTry()
• type Mutex
  • 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)

Functions

func ExampleTry

func ExampleTry()

ExampleTry test try lock

Types

type Mutex

type Mutex struct {
	sync.Mutex
}

Mutex 扩展一个Mutex结构

func (*Mutex) TryLock

func (m *Mutex) TryLock() bool

TryLock 尝试获取锁

type RecursiveMutex

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

RecursiveMutex 包装一个Mutex,实现可重入, 即可重入锁(递归锁) 可重入锁主要用在线程需要多次进入临界区代码时，需要使用可重入锁，主要目的是为了避免死锁 临界区：一个被共享的资源

func (*RecursiveMutex) Lock

func (m *RecursiveMutex) Lock()

Lock 请求锁

func (*RecursiveMutex) Unlock

func (m *RecursiveMutex) Unlock()

Unlock 释放锁

type TokenRecursiveMutex

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

TokenRecursiveMutex Token方式的递归锁

func (*TokenRecursiveMutex) Lock

func (m *TokenRecursiveMutex) Lock(token int64)

Lock 请求锁，需要传入token

func (*TokenRecursiveMutex) Unlock

func (m *TokenRecursiveMutex) Unlock(token int64)

Unlock 释放锁