redislock

Documentation

Index

• Variables
• type Lock
  • func New(conn redis.Conn, key string, val interface{}, expire int) *Lock
  • func (lock *Lock) TryLock() (bool, error)
  • func (lock *Lock) Unlock() error

Variables

var DefaultExpire = 20 //默认key过期时间20s

Types

type Lock

type Lock struct {
	// contains filtered or unexported fields
}

func New

func New(conn redis.Conn, key string, val interface{}, expire int) *Lock

New 实例化redis分布式锁实例对象

func (*Lock) TryLock

func (lock *Lock) TryLock() (bool, error)

TryLock 尝试加锁,如果加锁成功就返回true,nil 利用redis setEx nx的原子性实现分布式锁

func (*Lock) Unlock

func (lock *Lock) Unlock() error

Unlock 释放锁采用redis lua脚步执行，成功返回nil