194 lines
6.2 KiB
C++
194 lines
6.2 KiB
C++
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/*
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Copyright (c) 2003, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_STAT_HPP_INCLUDED
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#define TORRENT_STAT_HPP_INCLUDED
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#include <algorithm>
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#include <vector>
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#include <assert.h>
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#include "libtorrent/size_type.hpp"
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#include "libtorrent/invariant_check.hpp"
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#include "libtorrent/config.hpp"
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namespace libtorrent
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{
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class TORRENT_EXPORT stat
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{
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friend class invariant_access;
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enum { history = 10 };
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public:
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stat()
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: m_downloaded_payload(0)
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, m_uploaded_payload(0)
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, m_downloaded_protocol(0)
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, m_uploaded_protocol(0)
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, m_total_download_payload(0)
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, m_total_upload_payload(0)
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, m_total_download_protocol(0)
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, m_total_upload_protocol(0)
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, m_mean_download_rate(0)
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, m_mean_upload_rate(0)
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, m_mean_download_payload_rate(0)
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, m_mean_upload_payload_rate(0)
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{
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std::fill(m_download_rate_history, m_download_rate_history+history, 0.f);
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std::fill(m_upload_rate_history, m_upload_rate_history+history, 0.f);
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std::fill(m_download_payload_rate_history, m_download_payload_rate_history+history, 0.f);
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std::fill(m_upload_payload_rate_history, m_upload_payload_rate_history+history, 0.f);
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}
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void operator+=(const stat& s)
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{
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INVARIANT_CHECK;
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m_downloaded_payload += s.m_downloaded_payload;
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m_total_download_payload += s.m_downloaded_payload;
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m_downloaded_protocol += s.m_downloaded_protocol;
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m_total_download_protocol += s.m_downloaded_protocol;
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m_uploaded_payload += s.m_uploaded_payload;
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m_total_upload_payload += s.m_uploaded_payload;
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m_uploaded_protocol += s.m_uploaded_protocol;
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m_total_upload_protocol += s.m_uploaded_protocol;
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}
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void received_bytes(int bytes_payload, int bytes_protocol)
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{
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INVARIANT_CHECK;
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assert(bytes_payload >= 0);
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assert(bytes_protocol >= 0);
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m_downloaded_payload += bytes_payload;
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m_total_download_payload += bytes_payload;
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m_downloaded_protocol += bytes_protocol;
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m_total_download_protocol += bytes_protocol;
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}
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void sent_bytes(int bytes_payload, int bytes_protocol)
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{
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INVARIANT_CHECK;
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assert(bytes_payload >= 0);
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assert(bytes_protocol >= 0);
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m_uploaded_payload += bytes_payload;
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m_total_upload_payload += bytes_payload;
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m_uploaded_protocol += bytes_protocol;
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m_total_upload_protocol += bytes_protocol;
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}
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// should be called once every second
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void second_tick(float tick_interval);
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float upload_rate() const { return m_mean_upload_rate; }
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float download_rate() const { return m_mean_download_rate; }
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float upload_payload_rate() const { return m_mean_upload_payload_rate; }
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float download_payload_rate() const { return m_mean_download_payload_rate; }
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size_type total_payload_upload() const { return m_total_upload_payload; }
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size_type total_payload_download() const { return m_total_download_payload; }
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size_type total_protocol_upload() const { return m_total_upload_protocol; }
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size_type total_protocol_download() const { return m_total_download_protocol; }
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// this is used to offset the statistics when a
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// peer_connection is opened and have some previous
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// transfers from earlier connections.
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void add_stat(size_type downloaded, size_type uploaded)
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{
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m_total_download_payload += downloaded;
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m_total_upload_payload += uploaded;
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}
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private:
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#ifndef NDEBUG
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void check_invariant() const
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{
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assert(m_mean_upload_rate >= 0);
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assert(m_mean_download_rate >= 0);
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assert(m_mean_upload_payload_rate >= 0);
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assert(m_mean_download_payload_rate >= 0);
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assert(m_total_upload_payload >= 0);
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assert(m_total_download_payload >= 0);
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assert(m_total_upload_protocol >= 0);
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assert(m_total_download_protocol >= 0);
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}
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#endif
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// history of download/upload speeds a few seconds back
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float m_download_rate_history[history];
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float m_upload_rate_history[history];
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float m_download_payload_rate_history[history];
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float m_upload_payload_rate_history[history];
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// the accumulators we are adding the downloads/uploads
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// to this second. This only counts the actual payload
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// and ignores the bytes sent as protocol chatter.
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int m_downloaded_payload;
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int m_uploaded_payload;
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// the accumulators we are adding the downloads/uploads
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// to this second. This only counts the protocol
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// chatter and ignores the actual payload
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int m_downloaded_protocol;
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int m_uploaded_protocol;
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// total download/upload counters
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// only counting payload data
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size_type m_total_download_payload;
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size_type m_total_upload_payload;
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// total download/upload counters
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// only counting protocol chatter
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size_type m_total_download_protocol;
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size_type m_total_upload_protocol;
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// current mean download/upload rates
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float m_mean_download_rate;
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float m_mean_upload_rate;
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float m_mean_download_payload_rate;
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float m_mean_upload_payload_rate;
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};
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}
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#endif // TORRENT_STAT_HPP_INCLUDED
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