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1 /**
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2 * Transfers accelerator plugin for Orthanc
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3 * Copyright (C) 2018 Osimis, Belgium
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4 *
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5 * This program is free software: you can redistribute it and/or
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6 * modify it under the terms of the GNU Affero General Public License
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7 * as published by the Free Software Foundation, either version 3 of
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8 * the License, or (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 * Affero General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU Affero General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 **/
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18
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19
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20 #include "HttpQueriesRunner.h"
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21
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22 #include <Core/OrthancException.h>
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23
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24 #include <boost/thread.hpp>
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25
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26
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27 namespace OrthancPlugins
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28 {
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29 void HttpQueriesRunner::Worker(HttpQueriesRunner* that)
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30 {
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31 while (that->continue_)
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32 {
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33 size_t size;
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34
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35 if (that->queue_.ExecuteOneQuery(size))
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36 {
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37 boost::mutex::scoped_lock lock(that->mutex_);
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38 that->totalTraffic_ += size;
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39 that->lastUpdate_ = boost::posix_time::microsec_clock::local_time();
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40 }
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41 else
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42 {
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43 // We're done (either failure, or no more pending queries)
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44 return;
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45 }
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46 }
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47 }
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48
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49
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50 HttpQueriesRunner::HttpQueriesRunner(HttpQueriesQueue& queue,
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51 size_t threadsCount) :
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52 queue_(queue),
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53 continue_(true),
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54 start_(boost::posix_time::microsec_clock::local_time()),
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55 totalTraffic_(0),
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56 lastUpdate_(start_)
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57 {
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58 if (threadsCount == 0)
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59 {
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60 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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61 }
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62
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63 workers_.resize(threadsCount);
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64
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65 for (size_t i = 0; i < threadsCount; i++)
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66 {
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67 workers_[i] = new boost::thread(Worker, this);
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68 }
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69 }
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70
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71
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72 HttpQueriesRunner::~HttpQueriesRunner()
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73 {
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74 continue_ = false;
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75
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76 for (size_t i = 0; i < workers_.size(); i++)
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77 {
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78 if (workers_[i] != NULL)
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79 {
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80 if (workers_[i]->joinable())
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81 {
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82 workers_[i]->join();
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83 }
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84
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85 delete workers_[i];
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86 }
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87 }
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88 }
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89
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90
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91 void HttpQueriesRunner::GetSpeed(float& kilobytesPerSecond)
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92 {
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93 boost::mutex::scoped_lock lock(mutex_);
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94
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95 double ms = static_cast<double>((lastUpdate_ - start_).total_milliseconds());
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96
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97 if (ms < 10.0)
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98 {
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99 // Prevents division by zero on very quick transfers
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100 kilobytesPerSecond = 0;
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101 }
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102 else
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103 {
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104 kilobytesPerSecond = static_cast<float>(
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105 static_cast<double>(totalTraffic_) * 1000.0 /*ms*/ / (1024.0 /*KB*/ * ms));
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106 }
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107 }
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108 }
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