Software Timers

Firmware
1

Can some confirm that I can’t have any arguments on the Software Timer function when creating the timer? I have a work around but it’s not a clean as I would like it.

Below is sample code.

int CloudRelayInChange(String command) {
  bool value = 0;
  // Do stuff.......
}
void Switch4TimerFunction(){
  Particle.publish("Switch4TimerFunction", "4");
  CloudRelayInChange("4");
}

//  This failes compiling every time     Timer TimerSwitch4(50000, CloudRelayInChange("4"), true);
Timer TimerSwitch4(50000, Switch4TimerFunction, true); // This works

void setup() {
      TimerSwitch4.start()
}
2

No, Timer TimerSwitch4(50000, CloudRelayInChange("4"), true) can’t work since the constructor for Timer expects a function pointer and not the return value of a function.

Acutally it expects a function pointer to a void fn(void) and not a function pointer to a function like this int fn(String).

This is the relevant code from the sources

typedef std::function<void(void)> timer_callback_fn;
Timer(unsigned period, timer_callback_fn callback_, bool one_shot=false);

But if you want a clean solution, you can subclass Timer and provide it with some kind of flag, which you can set via your own constructor or a version of start() or a dedicated setter methode.
Less clean, but a lot easier is using a global flag.