| /* |
| * |
| * 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. |
| * |
| */ |
| |
| /** |
| * \file lp_map.h |
| * |
| * Qpid asynchronous store plugin library |
| * |
| * File containing code for class mrg::journal::lp_map (logical file map). |
| * See class documentation for details. |
| * |
| * \author Kim van der Riet |
| */ |
| |
| #ifndef QPID_LEGACYSTORE_JRNL_LP_MAP_H |
| #define QPID_LEGACYSTORE_JRNL_LP_MAP_H |
| |
| #include <map> |
| #include <string> |
| #include <sys/types.h> |
| #include <vector> |
| |
| namespace mrg |
| { |
| namespace journal |
| { |
| /** |
| * \class lp_map |
| * \brief Maps the logical file id (lfid) to the physical file id (pfid) in the journal. |
| * |
| * NOTE: NOT THREAD SAFE |
| */ |
| class lp_map |
| { |
| public: |
| typedef std::map<u_int16_t, u_int16_t> lp_map_t; |
| typedef lp_map_t::const_iterator lp_map_citr_t; |
| typedef lp_map_t::const_reverse_iterator lp_map_critr_t; |
| |
| private: |
| typedef std::pair<u_int16_t, u_int16_t> lfpair; |
| typedef std::pair<lp_map_t::iterator, bool> lfret; |
| lp_map_t _map; |
| |
| public: |
| lp_map(); |
| virtual ~lp_map(); |
| |
| void insert(u_int16_t lfid, u_int16_t pfid); |
| inline u_int16_t size() const { return u_int16_t(_map.size()); } |
| inline bool empty() const { return _map.empty(); } |
| inline lp_map_citr_t begin() { return _map.begin(); } |
| inline lp_map_citr_t end() { return _map.end(); } |
| inline lp_map_critr_t rbegin() { return _map.rbegin(); } |
| inline lp_map_critr_t rend() { return _map.rend(); } |
| void get_pfid_list(std::vector<u_int16_t>& pfid_list); |
| |
| // debug aid |
| std::string to_string(); |
| }; |
| |
| } // namespace journal |
| } // namespace mrg |
| |
| #endif // ifndef QPID_LEGACYSTORE_JRNL_LP_MAP_H |