/
locker.go
42 lines (34 loc) · 830 Bytes
/
locker.go
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package storage
import (
"context"
log "github.com/sirupsen/logrus"
"go.etcd.io/etcd/client/v3"
"go.etcd.io/etcd/client/v3/concurrency"
)
type Locker struct {
mutex *concurrency.Mutex
}
func NewLocker(ctx context.Context, path string, endpoints []string) (*Locker, error) {
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
log.Errorf("new etcd client err %+v", err)
return nil, err
}
session, err := concurrency.NewSession(cli)
if err != nil {
log.Errorf("new session err %+v", err)
return nil, err
}
return &Locker{
mutex: concurrency.NewMutex(session, path),
}, nil
}
func (l *Locker) Lock(ctx context.Context) error {
return l.mutex.Lock(ctx)
}
func (l *Locker) UnLock(ctx context.Context) error {
return l.mutex.Unlock(ctx)
}