ESP8266 Scheduler. Tasks in separate files arduino IDE - scheduled-tasks

Question

I want to create simple weather station with esp8266 but with scheduler to updating data and GUI more simultaneously. I've downloaded scheduler from here but there is information:
Tasks must be declared globally on the stack (not a pointer). Failure to do so will crash your device
Does that mean that I have to write all task classes in *.ino file? Can I save them in separate files and call to sketch file? How to do that? I've tried few times but the code won't compile.
Simpliest example of sketch:
#include <Scheduler.h>
#include <Arduino.h>
class SimpleTask : public Task {
protected:
void setup() {
Serial.println("Setup func");
}
void loop() {
Serial.println("Loop func");
delay(600);
}
} simple_task;
void setup() {
Serial.begin(115200);
Scheduler.start(&simple_task);
Scheduler.begin();
}
void loop() { }

Answer 1

Tasks must be declared globally on the stack (not a pointer).
I think strictly this means that Tasks must not be created on the heap and need to be global, static objects.
This can be done by creating the object in a separate file and declaring the object using the extern keyword.
e.g. an example mysimpletask.h:
#ifndef __MySIMPLETASK_H__
#define __MySIMPLETASK_H__
#include <Scheduler.h>
class MySimpleTask : public Task {
protected:
void setup();
void loop();
};
extern MySimpleTask my_simple_task;
#endif
The implementation in mysimpletask.cpp:
#include "mysimpletask.h"
void MySimpleTask::setup() {
Serial.println("Setup func");
}
void MySimpleTask::loop() {
Serial.println("Loop func");
delay(600);
}
MySimpleTask my_simple_task;
And the sketch:
#include <Scheduler.h>
#include <Arduino.h>
#include "mysimpletask.h"
void setup() {
Serial.begin(115200);
Scheduler.start(&my_simple_task);
Scheduler.begin();
}
void loop() { }