Wiki » Historie » Version 4
Maximilian Seesslen, 10.09.2025 11:39
| 1 | 2 | Maximilian Seesslen | Small general purpose C++ library for microcontrollers like STM32 with flash sizes down to 16 KByte. |
|---|---|---|---|
| 2 | |||
| 3 | |||
| 4 | It provides classes |
||
| 5 | * Lists |
||
| 6 | * Ring buffers |
||
| 7 | * Strings |
||
| 8 | * Checksums |
||
| 9 | * Logging |
||
| 10 | * Signaling |
||
| 11 | * Testing |
||
| 12 | |||
| 13 | Some functions are similar to Qt but very reduced to work on microcontrollers with down to 16KiB of flash. |
||
| 14 | |||
| 15 | (Naming is from 'Leptothorax', a small ant) |
||
| 16 | 3 | Maximilian Seesslen | |
| 17 | [[Pending signals]] |
||
| 18 | 4 | Maximilian Seesslen | [[Event loop chain]] |
| 19 | |||
| 20 | 1 | Maximilian Seesslen | h1. Wiki |
| 21 | |||
| 22 | Pending signals: |
||
| 23 | |||
| 24 | <pre><code class="cpp"> |
||
| 25 | #if 0 |
||
| 26 | template<class... T> |
||
| 27 | struct Store1 |
||
| 28 | { |
||
| 29 | T...[0] t; |
||
| 30 | }; |
||
| 31 | |||
| 32 | template<typename... T> |
||
| 33 | class Store |
||
| 34 | { |
||
| 35 | //struct { T...[0] t; }data; |
||
| 36 | T...[0] t; |
||
| 37 | }; |
||
| 38 | |||
| 39 | //consteval |
||
| 40 | auto first_plus_last(auto... args) |
||
| 41 | { |
||
| 42 | return args...[0] + args...[sizeof...(args) - 1]; |
||
| 43 | } |
||
| 44 | |||
| 45 | static_assert(first_plus_last(5) == 10); |
||
| 46 | static_assert(first_plus_last(5, 4) == 9); |
||
| 47 | static_assert(first_plus_last(5, 6, 2) == 7); |
||
| 48 | #endif |
||
| 49 | |||
| 50 | |||
| 51 | class CPendingSignal |
||
| 52 | { |
||
| 53 | public: |
||
| 54 | CPendingSignal() |
||
| 55 | {}; |
||
| 56 | virtual void emitSignal(){}; |
||
| 57 | }; |
||
| 58 | |||
| 59 | template<typename T> |
||
| 60 | class CPendingSignal1: public CPendingSignal |
||
| 61 | { |
||
| 62 | CSignal<void, T> &m_signal; |
||
| 63 | T m_p1; |
||
| 64 | public: |
||
| 65 | CPendingSignal1(CSignal<void, T>& signal, T i1) |
||
| 66 | :m_signal(signal) |
||
| 67 | ,m_p1(i1) |
||
| 68 | { |
||
| 69 | } |
||
| 70 | virtual void emitSignal(); |
||
| 71 | }; |
||
| 72 | |||
| 73 | template<typename T1, typename T2> |
||
| 74 | class CPendingSignal2: public CPendingSignal |
||
| 75 | { |
||
| 76 | CSignal<void, T1, T2> &m_signal; |
||
| 77 | T1 m_p1; |
||
| 78 | T2 m_p2; |
||
| 79 | public: |
||
| 80 | constexpr CPendingSignal2(CSignal<void, T1, T2> &signal, T1 i1, T2 i2) |
||
| 81 | :m_signal(signal) |
||
| 82 | ,m_p1(i1) |
||
| 83 | ,m_p2(i2) |
||
| 84 | { |
||
| 85 | } |
||
| 86 | virtual void emitSignal() |
||
| 87 | { |
||
| 88 | m_signal.emitSignal(m_p1, m_p2); |
||
| 89 | } |
||
| 90 | }; |
||
| 91 | |||
| 92 | template<typename T1, typename T2, typename T3> |
||
| 93 | class CPendingSignal3: public CPendingSignal |
||
| 94 | { |
||
| 95 | CSignal<void, T1, T2, T3> &m_signal; |
||
| 96 | T1 m_p1; |
||
| 97 | T2 m_p2; |
||
| 98 | T3 m_p3; |
||
| 99 | public: |
||
| 100 | constexpr CPendingSignal3(CSignal<void, T1, T2, T3> &signal, T1 i1, T2 i2, T3 i3) |
||
| 101 | :m_signal(signal) |
||
| 102 | ,m_p1(i1) |
||
| 103 | ,m_p2(i2) |
||
| 104 | ,m_p3(i3) |
||
| 105 | { |
||
| 106 | } |
||
| 107 | virtual void emitSignal() |
||
| 108 | { |
||
| 109 | m_signal.emitSignal(m_p1, m_p2, m_p3); |
||
| 110 | } |
||
| 111 | }; |
||
| 112 | |||
| 113 | template<typename T> |
||
| 114 | CPendingSignal* XcreatePendingSignal(T p1) |
||
| 115 | { |
||
| 116 | return( new CPendingSignal1<T>(p1) ); |
||
| 117 | }; |
||
| 118 | |||
| 119 | template<typename T1, typename T2> |
||
| 120 | CPendingSignal* XcreatePendingSignal(CSignal<void, T1, T2> &sig, T1 p1, T2 p2) |
||
| 121 | { |
||
| 122 | return( new CPendingSignal2<T1, T2>(sig, p1, p2) ); |
||
| 123 | }; |
||
| 124 | |||
| 125 | template<typename T1, typename T2, typename T3> |
||
| 126 | CPendingSignal* XcreatePendingSignal(CSignal<void, T1, T2, T3> &sig, T1 p1, T2 p2, T3 p3) |
||
| 127 | { |
||
| 128 | return( new CPendingSignal3<T1, T2, T3>(sig, p1, p2, p3) ); |
||
| 129 | }; |
||
| 130 | |||
| 131 | enum EColor{ |
||
| 132 | white, black, grey, green, |
||
| 133 | }; |
||
| 134 | |||
| 135 | void show(int i1, int i2, EColor col) |
||
| 136 | { |
||
| 137 | printf("SIGNAL: %d/%d - %d\n", i1, i2, col); |
||
| 138 | } |
||
| 139 | |||
| 140 | int main( int argc, const char *argv[] ) |
||
| 141 | { |
||
| 142 | CEventLoop l1; |
||
| 143 | CEventLoop l2; |
||
| 144 | CEventLoop l3; |
||
| 145 | |||
| 146 | printf( "Size: %d\n", sizeof(l1) ); |
||
| 147 | printf( "Size ptr: %d\n", sizeof(argv[0]) ); |
||
| 148 | printf( "Size pend: %d\n", sizeof(CPendingSignal2<int, int>) ); |
||
| 149 | |||
| 150 | CSignal<void, int, int, EColor> sig1; |
||
| 151 | sig1.connect( &show ); |
||
| 152 | CPendingSignal* ps1=XcreatePendingSignal<int, int, EColor>(sig1, 1,2, black); |
||
| 153 | //CPendingSignal* ps2=createPendingSignal(sig1, 123,456, 0); |
||
| 154 | CPendingSignal* ps2 = sig1.createPendingSignal(123,456, white); |
||
| 155 | |||
| 156 | printf("-------------------\n"); |
||
| 157 | ps1->emitSignal(); |
||
| 158 | ps2->emitSignal(); |
||
| 159 | |||
| 160 | CEventLoop::allEventLoops(); |
||
| 161 | return(0); |
||
| 162 | } |
||
| 163 | |||
| 164 | //---fin---------------------------------------------------------------------- |
||
| 165 | |||
| 166 | </code></pre> |