Files
minio/vendor/github.com/minio/dsync/dsync.go
T
Krishnan Parthasarathi b7c169d71d object layer initialization using distributed locking (#2397)
* vendorized latest minio/dsync

* wip - object layer initialization using distributed locking
2016-09-13 21:18:30 -07:00

58 lines
1.5 KiB
Go

/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dsync
import (
"errors"
"net/rpc"
)
const RpcPath = "/dsync"
const DebugPath = "/debug"
const DefaultPath = "/rpc/dsync"
var n int
var nodes []string
var rpcPaths []string
func closeClients(clients []*rpc.Client) {
for _, clnt := range clients {
clnt.Close()
}
}
// Same as SetNodes, but takes a slice of rpc paths as argument different from the package-level default.
func SetNodesWithPath(nodeList []string, paths []string) (err error) {
// Validate if number of nodes is within allowable range.
if n != 0 {
return errors.New("Cannot reinitialize dsync package")
} else if len(nodeList) < 4 {
return errors.New("Dsync not designed for less than 4 nodes")
} else if len(nodeList) > 16 {
return errors.New("Dsync not designed for more than 16 nodes")
}
nodes = make([]string, len(nodeList))
copy(nodes, nodeList[:])
rpcPaths = make([]string, len(paths))
copy(rpcPaths, paths[:])
n = len(nodes)
return nil
}