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freeRTOS based schedule #1516

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hreintke
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This PR implements a FunctionQueue class which provides scheduling functionality for ESP32.

Each FunctionQueue executes as an independent RTOS task, pinned to core 1, priority 1 (equal to loop).
The actual queue is implemented as a RTOS queue.
bool FunctionQueue::scheduleFunction(std::function<void(void)> sf) is used for scheduling.

FunctionQueue myFQ();
myFQ.scheduleFunction([](){Serial.printf("Scheduled print\r\n");

If instantiated with bool parameter = true, FunctionQueue myFQ(true); the scheduled functions will be executed in sync with loop (loop - scheduled - loop - scheduled). That provides the same functionality as in ESP8266.

The Ticker class is updated to have the scheduled versions use the FunctionQueue.

Comments welcome

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vTaskDelete(NULL);
}

FunctionQueue FQ;

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Other libraries allow to not automatically instantiate global variables.

Do we need to obey NO_GLOBAL_INSTANCES here?

@me-no-dev me-no-dev closed this Dec 14, 2021
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4 participants