rsync

Documentation

Index

• Variables
• func Acquire(key string, ttl int, f func() error) error
• func AcquireDelay(key string, ttl int, f func() error) error
• func AcquireOnce(key string, ttl int, f func() error) error

Variables

var ErrLock = errors.New("lock failure")

Functions

func Acquire

func Acquire(key string, ttl int, f func() error) error

Acquire is a distributed lock by etcd try to lock with a key if timeout the lock will be return f() is the function what will be lock it will return a error key is prefix or a unique id tll is lock timeout setting tryLockTimes is backoff to retry lock

func AcquireDelay

func AcquireDelay(key string, ttl int, f func() error) error

func AcquireOnce

func AcquireOnce(key string, ttl int, f func() error) error

if lock get failure during time.Second,it will be return lock err