95 lines
3.7 KiB
C++
95 lines
3.7 KiB
C++
/*
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universe.h
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Copyright (c) 2020 Kevin Matz (kevin.matz@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#pragma once
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#include "dmx.h"
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#include <chrono>
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#include <cstdint>
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#include <functional>
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#include <memory>
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#include <shared_mutex>
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#include <queue>
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#include <vector>
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namespace DMX {
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using DimmerData = std::array<uint8_t, E111_LAST_SLOT + 1>; //!< Array of 513 bytes for basic data.
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/**
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* @brief The Universe class
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*
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* \cite DMX ANSI E1.11 describes may things about moving data over serial EIA-485-A
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* links. This class encapselates that data, regardless of how it was
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* transmitted.
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*/
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class Universe {
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public:
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explicit Universe (int timeout_period = E111_DATA_LOSS_TIMEOUT);
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virtual long age() const;
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virtual double rxRate();
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virtual uint8_t status() const;
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virtual uint8_t slot(const uint16_t) const;
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virtual void setStatus(uint8_t);
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virtual void setValue(const uint16_t start, const uint16_t footprint,
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const uint8_t* const data);
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virtual void setValue(const uint16_t address, const uint8_t value);
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virtual void setData(const std::vector<uint8_t> &);
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virtual void setAltData(const std::vector<uint8_t> &);
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std::shared_ptr<void> onDataChange(const std::function<void(Universe*)>);
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std::shared_ptr<void> onStatusChange(const std::function<void(Universe*)>);
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/// Known states of the universe Status value
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enum Status : uint8_t {
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DMX_NULL = 0, //!< uninitialized
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DMX_ACTIVE = 1, //!< actively sending/receiving data
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DMX_LOST = 2, //!< no activity in E111_DATA_LOSS_TIMEOUT
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RX_TIMEOUT = 250 //!< no activity in the constructed timeout period
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};
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protected:
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inline void doDataCallbacks() {do_callbacks_(cb_dataChange);} //!< Data Change Callbacks
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inline void doStatusCallbacks() {do_callbacks_(cb_statusChange);} //!< Status Change Callbacks
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void do_callbacks_(std::vector<std::weak_ptr<const std::function<void(Universe*)>>>&);
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DimmerData null_start_data; //!< NULL Start Code data
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mutable std::shared_mutex mtx_data; //!< memory protect Null Start data
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mutable std::shared_mutex mtx_control; //!< thread protected access control
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std::chrono::system_clock::time_point last_updated_; //!< time of the latest update
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private:
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void rx_timeout_(bool add_now = false);
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const int rx_timeout_period_;
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uint8_t status_; //!< the operating state of the universe
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std::queue<std::chrono::time_point<std::chrono::system_clock>> rx_times_;
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std::vector<std::weak_ptr<const std::function<void(Universe*)>>> cb_dataChange;
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std::vector<std::weak_ptr<const std::function<void(Universe*)>>> cb_statusChange;
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};
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} // namespace DMX
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