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https://github.com/MaSzyna-EU07/maszyna.git
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Hirek193
4e3afdd2a6
Adds the logical protocol layer on top of the frame codec: session handshake with negotiated frame size, session scoped symbol handles, state subscriptions with periodic, on change and deadband filtering, command events with duplicate protection and continuous controls with stale update rejection, plus per connection rate limits and diagnostics. A single worker thread owns all of the blocking transport work and exchanges finished frames with the simulation thread through short locked queues, so a stalled, flooding or unplugged controller cannot hold up the simulation.
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
/*
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This Source Code Form is subject to the
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terms of the Mozilla Public License, v.
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2.0. If a copy of the MPL was not
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distributed with this file, You can
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obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <libserialport.h>
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#include <string>
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#include <vector>
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#include "hardware/transport/hardware_transport.h"
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// serial port transport, one connection per port, as described by the specification
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// the port is opened and serviced exclusively from the hardware worker thread
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namespace hardware
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{
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class serial_transport : public hardware_transport
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{
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public:
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// methods
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serial_transport( std::string Port, int const Baud );
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~serial_transport() override;
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bool connected() const override { return m_port != nullptr; }
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bool connect() override;
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void disconnect() override;
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int read( std::uint8_t *Buffer, std::size_t const Size ) override;
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int write( std::uint8_t const *Data, std::size_t const Size ) override;
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std::string kind() const override { return "Serial"; }
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std::string endpoint() const override;
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std::string last_error() const override { return m_lasterror; }
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private:
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// members
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std::string m_portname;
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int m_baud = 115200;
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sp_port *m_port = nullptr;
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std::string m_lasterror;
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};
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// list of serial ports currently present in the system
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std::vector<std::string> list_serial_ports();
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} // namespace hardware
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