1 // libTorrent - BitTorrent library 2 // Copyright (C) 2005-2011, Jari Sundell 3 // 4 // This program is free software; you can redistribute it and/or modify 5 // it under the terms of the GNU General Public License as published by 6 // the Free Software Foundation; either version 2 of the License, or 7 // (at your option) any later version. 8 // 9 // This program is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with this program; if not, write to the Free Software 16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 17 // 18 // In addition, as a special exception, the copyright holders give 19 // permission to link the code of portions of this program with the 20 // OpenSSL library under certain conditions as described in each 21 // individual source file, and distribute linked combinations 22 // including the two. 23 // 24 // You must obey the GNU General Public License in all respects for 25 // all of the code used other than OpenSSL. If you modify file(s) 26 // with this exception, you may extend this exception to your version 27 // of the file(s), but you are not obligated to do so. If you do not 28 // wish to do so, delete this exception statement from your version. 29 // If you delete this exception statement from all source files in the 30 // program, then also delete it here. 31 // 32 // Contact: Jari Sundell <jaris@ifi.uio.no> 33 // 34 // Skomakerveien 33 35 // 3185 Skoppum, NORWAY 36 37 #ifndef LIBTORRENT_DATA_FILE_MANAGER_H 38 #define LIBTORRENT_DATA_FILE_MANAGER_H 39 40 #include <vector> 41 #include <torrent/common.h> 42 43 namespace torrent { 44 45 class File; 46 47 class LIBTORRENT_EXPORT FileManager : private std::vector<File*> { 48 public: 49 typedef std::vector<File*> base_type; 50 typedef uint32_t size_type; 51 52 using base_type::value_type; 53 using base_type::iterator; 54 using base_type::reverse_iterator; 55 56 using base_type::begin; 57 using base_type::end; 58 using base_type::rbegin; 59 using base_type::rend; 60 61 FileManager(); 62 ~FileManager(); 63 open_files()64 size_type open_files() const { return base_type::size(); } 65 max_open_files()66 size_type max_open_files() const { return m_maxOpenFiles; } 67 void set_max_open_files(size_type s); 68 69 bool open(value_type file, int prot, int flags); 70 void close(value_type file); 71 72 void close_least_active(); 73 74 // Statistics: files_opened_counter()75 uint64_t files_opened_counter() const { return m_filesOpenedCounter; } files_closed_counter()76 uint64_t files_closed_counter() const { return m_filesClosedCounter; } files_failed_counter()77 uint64_t files_failed_counter() const { return m_filesFailedCounter; } 78 79 private: 80 FileManager(const FileManager&) LIBTORRENT_NO_EXPORT; 81 void operator = (const FileManager&) LIBTORRENT_NO_EXPORT; 82 83 size_type m_maxOpenFiles; 84 85 uint64_t m_filesOpenedCounter; 86 uint64_t m_filesClosedCounter; 87 uint64_t m_filesFailedCounter; 88 }; 89 90 } 91 92 #endif 93