| Line | Branch | Decision | Exec | Source |
|---|---|---|---|---|
| 1 | /** | |||
| 2 | * @file can_listener.h | |||
| 3 | * | |||
| 4 | * @date March 31, 2021 | |||
| 5 | * @author Matthew Kennedy, (c) 2021 | |||
| 6 | */ | |||
| 7 | ||||
| 8 | #pragma once | |||
| 9 | ||||
| 10 | #include "can.h" | |||
| 11 | ||||
| 12 | class CanListener { | |||
| 13 | public: | |||
| 14 | 12 | CanListener(uint32_t id) | ||
| 15 | 12 | : m_id(id) | ||
| 16 | { | |||
| 17 | 12 | } | ||
| 18 | ||||
| 19 | 14 | CanListener* processFrame(const size_t busIndex, const CANRxFrame& frame, efitick_t nowNt) { | ||
| 20 |
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14 | if (acceptFrame(busIndex, frame)) { |
| 21 | 13 | decodeFrame(frame, nowNt); | ||
| 22 | } | |||
| 23 | ||||
| 24 | 13 | return m_next; | ||
| 25 | } | |||
| 26 | ||||
| 27 | uint32_t getId() { | |||
| 28 | return m_id; | |||
| 29 | } | |||
| 30 | ||||
| 31 | void setNext(CanListener* next) { | |||
| 32 | m_next = next; | |||
| 33 | } | |||
| 34 | ||||
| 35 | ✗ | virtual CanListener* request() { | ||
| 36 | ✗ | return m_next; | ||
| 37 | } | |||
| 38 | ||||
| 39 | bool hasNext() const { | |||
| 40 | return m_next; | |||
| 41 | } | |||
| 42 | ||||
| 43 | // Return true if the provided frame should be accepted for processing by the listener. | |||
| 44 | // Override if you need more complex logic than comparing to a single ID. | |||
| 45 | 2 | virtual bool acceptFrame(const size_t busIndex, const CANRxFrame& frame) const { | ||
| 46 | /* accept from all buses */ | |||
| 47 | (void)busIndex; | |||
| 48 | ||||
| 49 |
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2 | return CAN_ID(frame) == m_id; | |
| 50 | } | |||
| 51 | ||||
| 52 | protected: | |||
| 53 | virtual void decodeFrame(const CANRxFrame& frame, efitick_t nowNt) = 0; | |||
| 54 | ||||
| 55 | private: | |||
| 56 | CanListener* m_next = nullptr; | |||
| 57 | ||||
| 58 | const uint32_t m_id; | |||
| 59 | }; | |||
| 60 |