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<td width="10%" class="headerValue"><a href="../index.html" title="Click to go to top-level">top level</a> - <a href="index.html" title="Click to go to directory core">core</a> - decode_database.h<span style="font-size: 80%;"> (source / <a href="decode_database.h.func-c.html" title="Click to go to function table">functions</a>)</span></td>
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<td class="headerValue">coverage.info</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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<td class="headerCovTableEntry">5</td>
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<td class="headerCovTableEntry">5</td>
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<td class="headerValue">2026-10-20 13:34:58</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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<td class="headerCovTableEntry">4</td>
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<pre class="sourceHeading"> Line data Source code</pre>
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<pre class="source">
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<span id="L1"><span class="lineNum"> 1</span> : /**</span>
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<span id="L2"><span class="lineNum"> 2</span> : * @file decode_database.h</span>
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<span id="L3"><span class="lineNum"> 3</span> : * @brief Runtime definitions and immutable indexed database.</span>
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<span id="L4"><span class="lineNum"> 4</span> : *</span>
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<span id="L5"><span class="lineNum"> 5</span> : * Created: 2026-03-13</span>
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<span id="L6"><span class="lineNum"> 6</span> : * Author: Deeaitch (Dim. Himro)</span>
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<span id="L7"><span class="lineNum"> 7</span> : *</span>
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<span id="L8"><span class="lineNum"> 8</span> : * Licensed under the MIT License.</span>
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<span id="L9"><span class="lineNum"> 9</span> : * See LICENSE file in the project root for full license text.</span>
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<span id="L10"><span class="lineNum"> 10</span> : */</span>
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<span id="L11"><span class="lineNum"> 11</span> : </span>
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<span id="L12"><span class="lineNum"> 12</span> : #ifndef DECODE_DATABASE_H</span>
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<span id="L13"><span class="lineNum"> 13</span> : #define DECODE_DATABASE_H</span>
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<span id="L14"><span class="lineNum"> 14</span> : </span>
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<span id="L15"><span class="lineNum"> 15</span> : #include "attributes.h"</span>
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<span id="L16"><span class="lineNum"> 16</span> : #include "definition_key.h"</span>
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<span id="L17"><span class="lineNum"> 17</span> : #include "multiplexing.h"</span>
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<span id="L18"><span class="lineNum"> 18</span> : #include "value_descriptions.h"</span>
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<span id="L19"><span class="lineNum"> 19</span> : #include <cstdint></span>
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<span id="L20"><span class="lineNum"> 20</span> : #include <memory></span>
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<span id="L21"><span class="lineNum"> 21</span> : #include <string></span>
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<span id="L22"><span class="lineNum"> 22</span> : #include <unordered_map></span>
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<span id="L23"><span class="lineNum"> 23</span> : #include <vector></span>
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<span id="L24"><span class="lineNum"> 24</span> : </span>
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<span id="L25"><span class="lineNum"> 25</span> : /**</span>
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<span id="L26"><span class="lineNum"> 26</span> : * @brief Signal byte order used for runtime decoding.</span>
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<span id="L27"><span class="lineNum"> 27</span> : */</span>
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<span id="L28"><span class="lineNum"> 28</span> : enum class ByteOrder {</span>
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<span id="L29"><span class="lineNum"> 29</span> : Intel,</span>
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<span id="L30"><span class="lineNum"> 30</span> : Motorola</span>
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<span id="L31"><span class="lineNum"> 31</span> : };</span>
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<span id="L32"><span class="lineNum"> 32</span> : </span>
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<span id="L33"><span class="lineNum"> 33</span> : /**</span>
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<span id="L34"><span class="lineNum"> 34</span> : * @brief Signal numeric type.</span>
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<span id="L35"><span class="lineNum"> 35</span> : */</span>
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<span id="L36"><span class="lineNum"> 36</span> : enum class ValueType {</span>
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<span id="L37"><span class="lineNum"> 37</span> : Unsigned,</span>
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<span id="L38"><span class="lineNum"> 38</span> : Signed</span>
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<span id="L39"><span class="lineNum"> 39</span> : };</span>
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<span id="L40"><span class="lineNum"> 40</span> : </span>
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<span id="L41"><span class="lineNum"> 41</span> : /**</span>
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<span id="L42"><span class="lineNum"> 42</span> : * @brief Runtime-ready signal definition.</span>
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<span id="L43"><span class="lineNum"> 43</span> : */</span>
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<span id="L44"><span class="lineNum"> 44</span> : struct DecodeSignal {</span>
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<span id="L45"><span class="lineNum"> 45</span> : Multiplexing multiplexing; /**< Selector role and branch value. */</span>
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<span id="L46"><span class="lineNum"> 46</span> : std::string name; /**< Signal name. */</span>
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<span id="L47"><span class="lineNum"> 47</span> : std::uint32_t startBit = 0U; /**< DBC start bit. */</span>
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<span id="L48"><span class="lineNum"> 48</span> : std::uint32_t length = 0U; /**< Signal length in bits. */</span>
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<span id="L49"><span class="lineNum"> 49</span> : ByteOrder byteOrder = ByteOrder::Intel; /**< Intel or Motorola. */</span>
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<span id="L50"><span class="lineNum"> 50</span> : ValueType valueType = ValueType::Unsigned; /**< Signed or unsigned. */</span>
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<span id="L51"><span class="lineNum"> 51</span> : double factor = 1.0; /**< Scaling factor. */</span>
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<span id="L52"><span class="lineNum"> 52</span> : double offset = 0.0; /**< Physical offset. */</span>
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<span id="L53"><span class="lineNum"> 53</span> : double minimum = 0.0; /**< Minimum physical value. */</span>
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<span id="L54"><span class="lineNum"> 54</span> : double maximum = 0.0; /**< Maximum physical value. */</span>
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<span id="L55"><span class="lineNum"> 55</span> : std::string unit; /**< Physical unit. */</span>
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<span id="L56"><span class="lineNum"> 56</span> : std::vector<std::string> receivers; /**< Receivers. */</span>
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<span id="L57"><span class="lineNum"> 57</span> : ValueDescriptions valueDescriptions; /**< Raw integer state descriptions. */</span>
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<span id="L58"><span class="lineNum"> 58</span> : std::string comment; /**< Comment. */</span>
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<span id="L59"><span class="lineNum"> 59</span> : </span>
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<span id="L60"><span class="lineNum"> 60</span> : AttributeMap attributes; /**< Effective attributes after defaults and overrides. */</span>
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<span id="L61"><span class="lineNum"> 61</span> : </span>
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<span id="L62"><span class="lineNum"> 62</span> <span class="tlaGNC"> 2438 : DecodeSignal() = default;</span></span>
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<span id="L63"><span class="lineNum"> 63</span> : };</span>
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<span id="L64"><span class="lineNum"> 64</span> : </span>
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<span id="L65"><span class="lineNum"> 65</span> : /**</span>
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<span id="L66"><span class="lineNum"> 66</span> : * @brief Runtime-ready frame definition.</span>
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<span id="L67"><span class="lineNum"> 67</span> : */</span>
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<span id="L68"><span class="lineNum"> 68</span> : struct DecodeFrame {</span>
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<span id="L69"><span class="lineNum"> 69</span> : std::string name; /**< Frame name. */</span>
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<span id="L70"><span class="lineNum"> 70</span> : std::uint32_t canId = 0U; /**< Normalized CAN ID. */</span>
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<span id="L71"><span class="lineNum"> 71</span> : bool isExtended = false; /**< true for extended frame. */</span>
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<span id="L72"><span class="lineNum"> 72</span> : std::uint8_t dlc = 0U; /**< Payload length. */</span>
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<span id="L73"><span class="lineNum"> 73</span> : std::uint32_t pgn = 0U; /**< PGN if available. */</span>
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<span id="L74"><span class="lineNum"> 74</span> : bool hasPgn = false; /**< Explicit J1939 opt-in; pgn must match canId. */</span>
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<span id="L75"><span class="lineNum"> 75</span> : std::string transmitter; /**< Transmitter ECU. */</span>
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<span id="L76"><span class="lineNum"> 76</span> : std::string comment; /**< Frame comment. */</span>
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<span id="L77"><span class="lineNum"> 77</span> : std::vector<DecodeSignal> signals; /**< Signal definitions. */</span>
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<span id="L78"><span class="lineNum"> 78</span> : </span>
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<span id="L79"><span class="lineNum"> 79</span> : AttributeMap attributes; /**< Effective attributes after defaults and overrides. */</span>
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<span id="L80"><span class="lineNum"> 80</span> : std::optional<std::string> frameFormat; /**< VFrameFormat label, when declared. */</span>
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<span id="L81"><span class="lineNum"> 81</span> : std::optional<std::uint32_t> cycleTimeMs; /**< GenMsgCycleTime in milliseconds, when declared. */</span>
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<span id="L82"><span class="lineNum"> 82</span> : </span>
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<span id="L83"><span class="lineNum"> 83</span> <span class="tlaGNC"> 2400 : DecodeFrame() = default;</span></span>
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<span id="L84"><span class="lineNum"> 84</span> : </span>
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<span id="L85"><span class="lineNum"> 85</span> : /** @brief Return the stable normalized frame identifier. */</span>
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<span id="L86"><span class="lineNum"> 86</span> <span class="tlaGNC"> 11038 : FrameKey GetKey() const {</span></span>
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<span id="L87"><span class="lineNum"> 87</span> <span class="tlaGNC"> 11038 : return FrameKey(canId, isExtended);</span></span>
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<span id="L88"><span class="lineNum"> 88</span> : }</span>
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<span id="L89"><span class="lineNum"> 89</span> : };</span>
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<span id="L90"><span class="lineNum"> 90</span> : </span>
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<span id="L91"><span class="lineNum"> 91</span> : /** A PGN lookup rejects multiple definitions rather than choosing by order. */</span>
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<span id="L92"><span class="lineNum"> 92</span> : struct PgnLookupResult {</span>
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<span id="L93"><span class="lineNum"> 93</span> : std::shared_ptr<const DecodeFrame> definition; /**< Owning matched definition; empty if missing or ambiguous. */</span>
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<span id="L94"><span class="lineNum"> 94</span> : bool ambiguous = false; /**< True when multiple definitions share the requested PGN. */</span>
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<span id="L95"><span class="lineNum"> 95</span> : };</span>
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<span id="L96"><span class="lineNum"> 96</span> : </span>
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<span id="L97"><span class="lineNum"> 97</span> : /**</span>
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<span id="L98"><span class="lineNum"> 98</span> : * @brief Immutable runtime snapshot. Copies share storage; reload replaces a snapshot.</span>
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<span id="L99"><span class="lineNum"> 99</span> : * Owning lookup handles and decoded results keep old definitions alive.</span>
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<span id="L100"><span class="lineNum"> 100</span> : */</span>
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<span id="L101"><span class="lineNum"> 101</span> : class DecodeDatabase {</span>
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<span id="L102"><span class="lineNum"> 102</span> : public:</span>
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<span id="L103"><span class="lineNum"> 103</span> <span class="tlaGNC"> 21 : DecodeDatabase() = default;</span></span>
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<span id="L104"><span class="lineNum"> 104</span> : /**</span>
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<span id="L105"><span class="lineNum"> 105</span> : * Copy and validate definitions before building the frame index.</span>
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<span id="L106"><span class="lineNum"> 106</span> : * Input aliases cannot modify the snapshot, even for rvalue input.</span>
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<span id="L107"><span class="lineNum"> 107</span> : * @throws std::invalid_argument for invalid metadata or duplicate keys.</span>
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<span id="L108"><span class="lineNum"> 108</span> : */</span>
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<span id="L109"><span class="lineNum"> 109</span> : explicit DecodeDatabase(const std::vector<DecodeFrame> &frames);</span>
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<span id="L110"><span class="lineNum"> 110</span> : </span>
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<span id="L111"><span class="lineNum"> 111</span> : /** Borrowed view, valid while this snapshot remains alive and unchanged. */</span>
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<span id="L112"><span class="lineNum"> 112</span> : const std::vector<DecodeFrame> &GetFrames() const;</span>
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<span id="L113"><span class="lineNum"> 113</span> : /** Owning handles retain the entire snapshot across reload or destruction. */</span>
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<span id="L114"><span class="lineNum"> 114</span> : std::shared_ptr<const DecodeFrame> FindFrame(const FrameKey &key) const;</span>
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<span id="L115"><span class="lineNum"> 115</span> : /** Only explicitly marked hasPgn frames participate; ambiguous results have no definition. */</span>
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<span id="L116"><span class="lineNum"> 116</span> : PgnLookupResult FindFrameByPgn(std::uint32_t pgn) const;</span>
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<span id="L117"><span class="lineNum"> 117</span> : /** @brief Return an owning signal handle, or an empty handle for a missing key. */</span>
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<span id="L118"><span class="lineNum"> 118</span> : std::shared_ptr<const DecodeSignal> FindSignal(const SignalKey &key) const;</span>
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<span id="L119"><span class="lineNum"> 119</span> : </span>
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<span id="L120"><span class="lineNum"> 120</span> : private:</span>
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<span id="L121"><span class="lineNum"> 121</span> : struct Storage {</span>
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<span id="L122"><span class="lineNum"> 122</span> : std::vector<DecodeFrame> frames;</span>
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<span id="L123"><span class="lineNum"> 123</span> : std::unordered_map<FrameKey, std::size_t, FrameKeyHasher> frameIndexByKey;</span>
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<span id="L124"><span class="lineNum"> 124</span> : </span>
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<span id="L125"><span class="lineNum"> 125</span> : std::unordered_map<std::uint32_t, std::vector<std::size_t>> frameIndicesByPgn;</span>
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<span id="L126"><span class="lineNum"> 126</span> : </span>
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<span id="L127"><span class="lineNum"> 127</span> : explicit Storage(const std::vector<DecodeFrame> &definitions);</span>
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<span id="L128"><span class="lineNum"> 128</span> : };</span>
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<span id="L129"><span class="lineNum"> 129</span> : </span>
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<span id="L130"><span class="lineNum"> 130</span> : std::shared_ptr<const Storage> storage;</span>
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<span id="L131"><span class="lineNum"> 131</span> : };</span>
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<span id="L132"><span class="lineNum"> 132</span> : </span>
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<span id="L133"><span class="lineNum"> 133</span> : #endif /* DECODE_DATABASE_H */</span>
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</pre>
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<table width="100%" border=0 cellspacing=0 cellpadding=0>
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<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
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<tr><td class="versionInfo">Generated by: <a href="https://github.com//linux-test-project/lcov" target="_parent">LCOV version 2.0-1</a></td></tr>
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