| /******************************************************************** |
| * 2014 - |
| * open source under Apache License Version 2.0 |
| ********************************************************************/ |
| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| #ifndef _HDFS_LIBHDFS3_CLIENT_LEASE_RENEW_H_ |
| #define _HDFS_LIBHDFS3_CLIENT_LEASE_RENEW_H_ |
| |
| #include <map> |
| |
| #include "Atomic.h" |
| #include "Memory.h" |
| #include "Thread.h" |
| |
| namespace Hdfs { |
| namespace Internal { |
| |
| class FileSystemInter; |
| |
| class LeaseRenewer { |
| public: |
| virtual ~LeaseRenewer() { |
| } |
| |
| virtual void StartRenew(shared_ptr<FileSystemInter> filesystem) = 0; |
| virtual void StopRenew(shared_ptr<FileSystemInter> filesystem) = 0; |
| |
| public: |
| static LeaseRenewer & GetLeaseRenewer(); |
| static void CreateSinglten(); |
| |
| private: |
| static once_flag once; |
| static shared_ptr<LeaseRenewer> renewer; |
| }; |
| |
| class LeaseRenewerImpl: public LeaseRenewer { |
| public: |
| LeaseRenewerImpl(); |
| ~LeaseRenewerImpl(); |
| int getInterval() const; |
| void setInterval(int interval); |
| void StartRenew(shared_ptr<FileSystemInter> filesystem); |
| void StopRenew(shared_ptr<FileSystemInter> filesystem); |
| |
| private: |
| void renewer(); |
| |
| private: |
| atomic<bool> stop; |
| condition_variable cond; |
| int interval; |
| mutex mut; |
| std::map<std::string, shared_ptr<FileSystemInter> > maps; |
| thread worker; |
| }; |
| |
| } |
| } |
| #endif /* _HDFS_LIBHDFS3_CLIENT_LEASE_RENEW_H_ */ |