T7Stream.hpp File Reference

#include <array>
#include <cstdint>
#include <functional>
#include <memory>
#include <optional>
#include <stdexcept>
#include <string>
#include <vector>
#include "config/T7Config.hpp"
#include "time/BoardClockSync.hpp"

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Classes
class	fsw::t7::T7Error
	A device failure. More...
class	fsw::t7::T7Device
	The device seam. More...
struct	fsw::t7::T7Device::Backlog
struct	fsw::t7::StreamPlan
	What to write before streaming and what to stream, derived from a board's config. More...
struct	fsw::t7::Sample
	One published value. More...
struct	fsw::t7::ColdJunction
	One scan's thermocouple cold-junction temperature (the T7's terminals), in °C. More...
struct	fsw::t7::Block
	A decoded LJM_eStreamRead block. More...
class	fsw::t7::T7Session
	One T7's stream: open, configure, start, then read blocks until something throws. More...
class	fsw::t7::FakeT7Unit
	The stand-in T7 itself, as distinct from a connection to it. More...
class	fsw::t7::FakeT7Device
	A connection to a stand-in T7, for tests and for running the bridge with no hardware (t7_bridge --fake). More...
struct	fsw::t7::FakeT7Device::Options

Namespaces
namespace	fsw
	Motorized ball valve position: raw ADC counts -> % open.
namespace	fsw::t7
namespace	fsw::t7::ljm_code
	LJM and device error codes the session acts on (labjack/ljm_constants, LJM errorcodes).

Functions
std::array< uint8_t, 2 >	fsw::t7::table_id (uint8_t slot, uint8_t ain)
	Table id for one AIN: {0x26, (slot-1)*0x20 + ain}, the same layout as the ESP32 boards.
std::string	fsw::t7::entity_name (uint8_t slot, uint8_t ain)
	Elodin entity name for one AIN, e.g.
std::array< uint8_t, 2 >	fsw::t7::calibrated_table_id (uint8_t slot, uint8_t ain)
	Calibrated table for one AIN: table_id + 0x10, e.g.
std::string	fsw::t7::calibrated_entity_name (uint8_t slot, uint8_t ain)
	Calibrated entity name, e.g.
bool	fsw::t7::is_stream_not_running (int code)
	True for every way a stop can answer "there was no stream to stop".
StreamPlan	fsw::t7::plan_stream (const config::T7Board &board)

Variables
constexpr uint8_t	fsw::t7::kTypeHi = 0x26
	Elodin table-id high byte for T7 analog inputs (0x20-0x25 are the ESP32 sensor types).
constexpr double	fsw::t7::kDummyValue = -9999.0
	What LJM writes into a scan lost to stream auto-recovery (LJM_DUMMY_VALUE).
constexpr uint8_t	fsw::t7::kCjcAin = 14
	The T7's internal temperature sensor, streamed for thermocouple cold-junction compensation whenever a board has a TC channel.
constexpr int	fsw::t7::ljm_code::kStreamNotInitialized = 1225
	LJME_STREAM_NOT_INITIALIZED (LJM, this handle).
constexpr int	fsw::t7::ljm_code::kStreamNotRunning = 1303
	LJME_STREAM_NOT_RUNNING.
constexpr int	fsw::t7::ljm_code::kSynchronizationTimeout = 1306
	LJME_SYNCHRONIZATION_TIMEOUT (no stream data).
constexpr int	fsw::t7::ljm_code::kStreamIsActive = 2605
	device: "can not be performed while stream is running"
constexpr int	fsw::t7::ljm_code::kDeviceStreamNotRunning = 2620
	device: "Stream was already disabled"