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minio/cmd/lock-rpc-client.go

114 lines
3.2 KiB

/*
* 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 cmd
import (
"crypto/tls"
"github.com/minio/dsync"
xnet "github.com/minio/minio/pkg/net"
)
// LockRPCClient is authenticable lock RPC client compatible to dsync.NetLocker
type LockRPCClient struct {
*RPCClient
}
// ServerAddr - dsync.NetLocker interface compatible method.
func (lockRPC *LockRPCClient) ServerAddr() string {
url := lockRPC.ServiceURL()
return url.Host
}
// ServiceEndpoint - dsync.NetLocker interface compatible method.
func (lockRPC *LockRPCClient) ServiceEndpoint() string {
url := lockRPC.ServiceURL()
return url.Path
}
// RLock calls read lock RPC.
func (lockRPC *LockRPCClient) RLock(args dsync.LockArgs) (reply bool, err error) {
err = lockRPC.Call(lockServiceName+".RLock", &LockArgs{LockArgs: args}, &reply)
return reply, err
}
// Lock calls write lock RPC.
func (lockRPC *LockRPCClient) Lock(args dsync.LockArgs) (reply bool, err error) {
err = lockRPC.Call(lockServiceName+".Lock", &LockArgs{LockArgs: args}, &reply)
return reply, err
}
// RUnlock calls read unlock RPC.
func (lockRPC *LockRPCClient) RUnlock(args dsync.LockArgs) (reply bool, err error) {
err = lockRPC.Call(lockServiceName+".RUnlock", &LockArgs{LockArgs: args}, &reply)
return reply, err
}
// Unlock calls write unlock RPC.
func (lockRPC *LockRPCClient) Unlock(args dsync.LockArgs) (reply bool, err error) {
err = lockRPC.Call(lockServiceName+".Unlock", &LockArgs{LockArgs: args}, &reply)
return reply, err
}
// ForceUnlock calls force unlock RPC.
func (lockRPC *LockRPCClient) ForceUnlock(args dsync.LockArgs) (reply bool, err error) {
err = lockRPC.Call(lockServiceName+".ForceUnlock", &LockArgs{LockArgs: args}, &reply)
return reply, err
}
// Expired calls expired RPC.
func (lockRPC *LockRPCClient) Expired(args dsync.LockArgs) (reply bool, err error) {
err = lockRPC.Call(lockServiceName+".Expired", &LockArgs{LockArgs: args}, &reply)
return reply, err
}
// NewLockRPCClient - returns new lock RPC client.
func NewLockRPCClient(host *xnet.Host) (*LockRPCClient, error) {
scheme := "http"
if globalIsSSL {
scheme = "https"
}
serviceURL := &xnet.URL{
Scheme: scheme,
Host: host.String(),
Path: lockServicePath,
}
var tlsConfig *tls.Config
if globalIsSSL {
tlsConfig = &tls.Config{
ServerName: host.Name,
RootCAs: globalRootCAs,
}
}
rpcClient, err := NewRPCClient(
RPCClientArgs{
NewAuthTokenFunc: newAuthToken,
RPCVersion: globalRPCAPIVersion,
ServiceName: lockServiceName,
ServiceURL: serviceURL,
TLSConfig: tlsConfig,
},
)
if err != nil {
return nil, err
}
return &LockRPCClient{rpcClient}, nil
}