/usr/include/eiskaltdcpp/dcpp/ThrottleManager.h is in libeiskaltdcpp-dev 2.2.9-4.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /*
* Copyright (C) 2009-2012 Jacek Sieka, arnetheduck on gmail point com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "Singleton.h"
#include "Socket.h"
#include "TimerManager.h"
#include "SettingsManager.h"
namespace dcpp
{
/**
* Manager for throttling traffic flow.
* Inspired by Token Bucket algorithm: http://en.wikipedia.org/wiki/Token_bucket
*/
class ThrottleManager :
public Singleton<ThrottleManager>, private TimerManagerListener
{
public:
/*
* Throttles traffic and reads a packet from the network
*/
int read(Socket* sock, void* buffer, size_t len);
/*
* Throttles traffic and writes a packet to the network
* Handle this a little bit differently than downloads due to OpenSSL stupidity
*/
int write(Socket* sock, void* buffer, size_t& len);
static SettingsManager::IntSetting getCurSetting(SettingsManager::IntSetting setting);
static int getUpLimit();
static int getDownLimit();
static void setSetting(SettingsManager::IntSetting setting, int value);
void shutdown();
private:
// stack up throttled read & write threads
CriticalSection stateCS;
CriticalSection waitCS[2];
long activeWaiter;
#ifndef _WIN32 //*nix
// shutdown wait
CriticalSection shutdownCS;
long n_lock, halt;
#endif
// download limiter
CriticalSection downCS;
int64_t downTokens;
// upload limiter
CriticalSection upCS;
int64_t upTokens;
friend class Singleton<ThrottleManager>;
ThrottleManager(void) : activeWaiter(-1), downTokens(0), upTokens(0)
{
#ifndef _WIN32 //*nix
n_lock = halt = 0;
#endif
TimerManager::getInstance()->addListener(this);
}
~ThrottleManager(void);
bool getCurThrottling();
void waitToken();
// TimerManagerListener
void on(TimerManagerListener::Second, uint64_t /* aTick */) noexcept;
};
} // namespace dcpp
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