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annotate dep/animia/src/strategist.cc @ 139:478f3b366199

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dep/animia: separate lots of things, use base class for OS stuff
author Paper <mrpapersonic@gmail.com>
date Sun, 12 Nov 2023 16:43:07 -0500
parents 28842a8d0c6b
children 1e696863b54c
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1 #include "animia/strategies.h"
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2 #include "animia/util.h"
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3 #include "animia/fd.h"
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4 #include "animia.h"
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5 #include <iostream>
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6
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7 namespace animia::internal {
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8
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9 class Strategist {
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10 public:
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11 Strategist(Result& result) : result_(result) {}
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12
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13 bool ApplyStrategies();
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14
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15 private:
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16 bool AddMedia(const MediaInfo media_information);
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17
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18 bool ApplyOpenFilesStrategy();
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19
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20 Result& result_;
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21 };
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22
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23 bool Strategist::ApplyStrategies() {
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24 bool success = false;
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25
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26 for (const auto strategy : result_.player.strategies) {
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27 switch (strategy) {
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28 case Strategy::OpenFiles:
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29 success |= ApplyOpenFilesStrategy();
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30 break;
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31 }
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32 }
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33
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34 return success;
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35 }
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36
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37 bool ApplyStrategies(std::vector<Result>& results) {
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38 bool success = false;
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39
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40 for (auto& result : results) {
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41 Strategist strategist(result);
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42 success |= strategist.ApplyStrategies();
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43 }
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44
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45 return success;
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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 bool Strategist::ApplyOpenFilesStrategy() {
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51 bool success = false;
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52
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53 const std::set<pid_t> pids{result_.process.pid};
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54 std::vector<std::tuple<pid_t, std::string>> files;
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55
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56 fd.EnumerateOpenFiles(pids, files);
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57
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58 for (const auto& [pid, file] : files) {
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59 success |= AddMedia({MediaInfoType::File, file});
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60 }
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61
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62 return success;
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63 }
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64
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65 ////////////////////////////////////////////////////////////////////////////////
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66
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67 bool Strategist::AddMedia(const MediaInfo media_information) {
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68 if (media_information.value.empty())
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69 return false;
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70
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71 Media media;
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72 media.information.push_back(media_information);
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73 result_.media.push_back(std::move(media));
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74
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75 return true;
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76 }
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78 }