1 /* <!-- copyright */ 2 /* 3 * aria2 - The high speed download utility 4 * 5 * Copyright (C) 2012 Tatsuhiro Tsujikawa 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 * 21 * In addition, as a special exception, the copyright holders give 22 * permission to link the code of portions of this program with the 23 * OpenSSL library under certain conditions as described in each 24 * individual source file, and distribute linked combinations 25 * including the two. 26 * You must obey the GNU General Public License in all respects 27 * for all of the code used other than OpenSSL. If you modify 28 * file(s) with this exception, you may extend this exception to your 29 * version of the file(s), but you are not obligated to do so. If you 30 * do not wish to do so, delete this exception statement from your 31 * version. If you delete this exception statement from all source 32 * files in the program, then also delete it here. 33 */ 34 /* copyright --> */ 35 #ifndef D_GROUP_ID_H 36 #define D_GROUP_ID_H 37 38 #include "common.h" 39 40 #include <set> 41 #include <string> 42 #include <memory> 43 44 namespace aria2 { 45 46 typedef uint64_t a2_gid_t; 47 48 class GroupId { 49 public: 50 static std::shared_ptr<GroupId> create(); 51 static std::shared_ptr<GroupId> import(a2_gid_t n); 52 static void clear(); 53 enum { ERR_NOT_UNIQUE = -1, ERR_NOT_FOUND = -2, ERR_INVALID = -3 }; 54 static int expandUnique(a2_gid_t& n, const char* hex); 55 static int toNumericId(a2_gid_t& n, const char* hex); 56 static std::string toHex(a2_gid_t n); 57 static std::string toAbbrevHex(a2_gid_t n); 58 59 ~GroupId(); getNumericId()60 a2_gid_t getNumericId() const { return gid_; } 61 std::string toHex() const; 62 std::string toAbbrevHex() const; 63 64 private: 65 static std::set<a2_gid_t> set_; 66 67 GroupId(a2_gid_t gid); 68 69 a2_gid_t gid_; 70 }; 71 72 } // namespace aria2 73 74 #endif // D_GROUP_ID_H 75