OpenDTU-old/include/PowerMeterHttpSml.h
Bernhard Kirchen 6b19b877c6 power meter refactoring: split loop task init from init()
when performing a test request using the web UI, we need to init() the
respective power meter, but we do not want to start the polling task.
hence we move initialization of the polling task to the poll() function.
it will return if the task is setup already, otherwise setup the task.
2024-06-27 22:18:41 +02:00

46 lines
1.0 KiB
C++

// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <atomic>
#include <memory>
#include <condition_variable>
#include <mutex>
#include <stdint.h>
#include <Arduino.h>
#include "HttpGetter.h"
#include "Configuration.h"
#include "PowerMeterSml.h"
class PowerMeterHttpSml : public PowerMeterSml {
public:
explicit PowerMeterHttpSml(PowerMeterHttpSmlConfig const& cfg)
: PowerMeterSml("PowerMeterHttpSml")
, _cfg(cfg) { }
~PowerMeterHttpSml();
bool init() final;
void loop() final;
bool isDataValid() const final;
// returns an empty string on success,
// returns an error message otherwise.
String poll();
private:
static void pollingLoopHelper(void* context);
std::atomic<bool> _taskDone;
void pollingLoop();
PowerMeterHttpSmlConfig const _cfg;
uint32_t _lastPoll = 0;
std::unique_ptr<HttpGetter> _upHttpGetter;
TaskHandle_t _taskHandle = nullptr;
bool _stopPolling;
mutable std::mutex _pollingMutex;
std::condition_variable _cv;
};