00001 /* 00002 00003 Copyright (c) 2003, Magnus Jonsson 00004 All rights reserved. 00005 00006 Redistribution and use in source and binary forms, with or without 00007 modification, are permitted provided that the following conditions 00008 are met: 00009 00010 * Redistributions of source code must retain the above copyright 00011 notice, this list of conditions and the following disclaimer. 00012 * Redistributions in binary form must reproduce the above copyright 00013 notice, this list of conditions and the following disclaimer in 00014 the documentation and/or other materials provided with the distribution. 00015 * Neither the name of the author nor the names of its 00016 contributors may be used to endorse or promote products derived 00017 from this software without specific prior written permission. 00018 00019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00020 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00023 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00024 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00025 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00026 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00027 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00028 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00029 POSSIBILITY OF SUCH DAMAGE. 00030 00031 */ 00032 00033 #ifndef TORRENT_ALLOCATE_RESOURCES_HPP_INCLUDED 00034 #define TORRENT_ALLOCATE_RESOURCES_HPP_INCLUDED 00035 00036 #include <map> 00037 #include <utility> 00038 00039 #include <boost/shared_ptr.hpp> 00040 00041 #include "libtorrent/resource_request.hpp" 00042 #include "libtorrent/peer_id.hpp" 00043 #include "libtorrent/socket.hpp" 00044 #include "libtorrent/session.hpp" 00045 00046 namespace libtorrent 00047 { 00048 class peer_connection; 00049 class torrent; 00050 00051 int saturated_add(int a, int b); 00052 00053 // Function to allocate a limited resource fairly among many consumers. 00054 // It takes into account the current use, and the consumer's desired use. 00055 // Should be invoked periodically to allow it adjust to the situation (make 00056 // sure "used" is updated between calls!). 00057 // If resources = std::numeric_limits<int>::max() it means there is an infinite 00058 // supply of resources (so everyone can get what they want). 00059 00060 void allocate_resources( 00061 int resources 00062 , std::map<sha1_hash, boost::shared_ptr<torrent> >& torrents 00063 , resource_request torrent::* res); 00064 00065 void allocate_resources( 00066 int resources 00067 , std::map<tcp::endpoint, peer_connection*>& connections 00068 , resource_request peer_connection::* res); 00069 00070 // Used for global limits. 00071 void allocate_resources( 00072 int resources 00073 , std::vector<session*>& _sessions 00074 , resource_request session::* res); 00075 } 00076 00077 00078 #endif
1.5.6