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91 lines
3.1 KiB
91 lines
3.1 KiB
15 years ago
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/***************************************************************************
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* Copyright (C) 2005 by Joris Guisson *
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* joris.guisson@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef NETSOCKETGROUP_H
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#define NETSOCKETGROUP_H
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#include <list>
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#include <util/constants.h>
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namespace net
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{
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using bt::Uint32;
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class BufferedSocket;
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/**
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@author Joris Guisson <joris.guisson@gmail.com>
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*/
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class SocketGroup
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{
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Uint32 limit;
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std::list<BufferedSocket*> sockets;
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bt::TimeStamp prev_run_time;
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Uint32 group_allowance;
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public:
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SocketGroup(Uint32 limit);
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virtual ~SocketGroup();
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/// Clear the lists of sockets
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void clear() {sockets.clear();}
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/// Add a socket for processing
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void add(BufferedSocket* s) {sockets.push_back(s);}
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/**
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Process all the sockets in the vector for download.
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@param global_allowance How much the group can do, this will be updated, 0 means no limit
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@param now Current time
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@return true if we can download more data, false otherwise
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*/
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bool download(Uint32 & global_allowance,bt::TimeStamp now);
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/**
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Process all the sockets in the vector for upload
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@param global_allowance How much the group can do, this will be updated, 0 means no limit
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@param now Current time
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@return true if we can upload more data, false otherwise
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*/
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bool upload(Uint32 & global_allowance,bt::TimeStamp now);
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/**
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* Set the group limit in bytes per sec
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* @param lim The limit
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*/
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void setLimit(Uint32 lim) {limit = lim;}
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/// Get the number of sockets
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Uint32 numSockets() const {return sockets.size();}
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/**
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* Calculate the allowance for this group
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* @param now Current timestamp
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*/
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void calcAllowance(bt::TimeStamp now);
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private:
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void processUnlimited(bool up,bt::TimeStamp now);
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bool processLimited(bool up,bt::TimeStamp now,Uint32 & allowance);
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bool process(bool up,bt::TimeStamp now,Uint32 & global_allowance);
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};
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}
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#endif
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