lock

nlock

A simple but powerful distributed lock

Get Started

Download

go get github.com/inuggets/nlock

Usage

Redis lock

import lock github.com/inuggets/nlock

redisPool := lock.NewRedisPool("localhost:6379", "PASSWORD")
key := "test"
l := lock.NewRedisLock(redisPool, 15) // ttl is 15s
if l.Lock(key) {
    defer l.Unlock(key)
    if l.HasLock(key) { // You can check if has lock
        ...
    }
    
    // Do something
    ...
}

Lock with waiting time

l := lock.NewRedisLock(redisPool, 15) // ttl is 15s
if lock.LockWait(key, 3) { // Wait up to 3s if key is locked but others
    defer l.Unlock(key)
}

Methods

- Lock(key string) bool                             // lock

- LockWait(key string, seconds int64) bool          // lock with waiting time

- Locked(key string) bool                           // check if locked

- HasLock(key string) bool                          // check if has/own lock

- Unlock(key string) bool                           // unlock

MySQL lock

import lock github.com/inuggets/nlock

db, _ := lock.NewMysqlClient("localhost:3306", "DB", "USER", "PASSWORD")
l := lock.NewMysqlLock(db, 15)
key := "test"
l := lock.NewRedisLock(redisPool, 15) // ttl is 15s
if l.Lock(key) {
    defer l.Unlock(key)
}

License

nlock is under the MIT license. See the LICENSE for detail.