Бычков Андрей
ba8bc27298
git-svn-id: svn://db.shs.com.ru/libs@1 a8b55f48-bf90-11e4-a774-851b48703e85
117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/*
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PIP - Platform Independent Primitives
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Speed and quality in/out diagnostics
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Copyright (C) 2014 Ivan Pelipenko peri4ko@gmail.com
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pidiagnostics.h"
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/** \class PIDiagnostics
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* \brief Connection quality diagnostics
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* \details
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* \section PIDiagnostics_sec0 Synopsis
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* This class provide abstract connection quality diagnostics and
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* counting. You should create instance of %PIDiagnostics and on
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* packet receive call function \a received(), on packet send call
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* function \a sended(). %PIDiagnostics calculates correct, wrong
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* and sended counters, packets per second, bytes per seconds,
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* immediate and integral receive frequencies and receive/send speeds
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* in human readable representation. There statistics are calculates
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* one time per period, by default 1 second. To calculate them you
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* should start %PIDiagnostics with function \a start() or pass \b true
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* to constructor.
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* */
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PIDiagnostics::PIDiagnostics(bool start_): PITimer() {
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PITimer::reset();
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reset();
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if (start_) start();
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}
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void PIDiagnostics::reset() {
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lock();
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qual = PIDiagnostics::Unknown;
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speedIn = speedOut = PIString::readableSize(0) + "/s";
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ifreq = immediate_freq = integral_freq = 0.f;
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packets[0] = packets[1] = 0;
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cur_pckt = rec_once = 0;
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wrong_count = receive_count = send_count = 0;
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packets_in_sec = packets_out_sec = bytes_in_sec = bytes_out_sec = 0;
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unlock();
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}
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void PIDiagnostics::received(int size, bool correct) {
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lock();
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packets[correct ? 1 : 0]++;
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rec_once = 1;
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if (correct) {
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float el = elapsed_s();
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PITimer::reset();
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if (el > 0.f) immediate_freq = ifreq = 1.f / el;
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else immediate_freq = ifreq = 0.f;
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receive_count++;
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packets_in_sec++;
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bytes_in_sec += size;
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} else {
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immediate_freq = ifreq = 0.f;
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wrong_count++;
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}
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unlock();
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}
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void PIDiagnostics::sended(int size) {
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lock();
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send_count++;
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packets_out_sec++;
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bytes_out_sec += size;
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unlock();
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}
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void PIDiagnostics::tick(void * data, int delimiter) {
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lock();
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PIDiagnostics::Quality diag;
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float fdel = 1. / (interval() / 1000.);
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immediate_freq = ifreq;
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ifreq = 0.f;
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speedIn = PIString::readableSize(bytes_in_sec * fdel) + "/s";
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speedOut = PIString::readableSize(bytes_out_sec * fdel) + "/s";
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bytes_in_sec = bytes_out_sec = packets_in_sec = packets_out_sec = 0;
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int arc = packets[0] + packets[1];
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float good_percents = 0.f;
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if (arc > 0) good_percents = (float)packets[1] / arc * 100.f;
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integral_freq = packets[1] * fdel;
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if (rec_once == 0) {
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diag = PIDiagnostics::Unknown;
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} else {
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if (good_percents == 0.f) diag = PIDiagnostics::Failure;
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else if (good_percents <= 20.f) diag = PIDiagnostics::Bad;
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else if (good_percents > 20.f && good_percents <= 80.f) diag = PIDiagnostics::Average;
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else diag = PIDiagnostics::Good;
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if (diag != qual) {
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qualityChanged(diag, qual);
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qual = diag;
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}
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}
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packets[0] = packets[1] = 0;
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unlock();
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}
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