seaweedfs/weed/filer/etcd/etcd_store_kv.go

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package etcd
import (
"context"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/filer"
)
func (store *EtcdStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
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_, err = store.client.Put(ctx, store.etcdKeyPrefix+string(key), string(value))
if err != nil {
return fmt.Errorf("kv put: %v", err)
}
return nil
}
func (store *EtcdStore) KvGet(ctx context.Context, key []byte) (value []byte, err error) {
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resp, err := store.client.Get(ctx, store.etcdKeyPrefix+string(key))
if err != nil {
return nil, fmt.Errorf("kv get: %v", err)
}
if len(resp.Kvs) == 0 {
return nil, filer.ErrKvNotFound
}
return resp.Kvs[0].Value, nil
}
func (store *EtcdStore) KvDelete(ctx context.Context, key []byte) (err error) {
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_, err = store.client.Delete(ctx, store.etcdKeyPrefix+string(key))
if err != nil {
return fmt.Errorf("kv delete: %v", err)
}
return nil
}