timer_init {governor}

Create a timer object which will return TRUE when checked and the given duration has elapsed.

Description

The timer will automatically reset any time it is checked (via check_timer()) and it returns TRUE.

Usage

timer_init(duration, reset_mode = "checked")

Arguments

duration

timer duration in seconds

reset_mode

one of 'checked' (default) or 'created' . If 'checked', then when the timer is reset the next alarm will be set to duration seconds after timer_check() last returned TRUE. If 'created', then the time is reset to the next increment of N * duration after the timestamp when the timer was created

Value

a timer object to used with timer_check()

Examples

# Run two timers in a tight 'while' loop
# The short timer should trigger every 0.1 seconds
# The long timer will trigger after 1 second
# Note that the timers will reset every time they trigger (after returning TRUE)
long_timer <- timer_init(1)
short_timer <- timer_init(0.1)
counter <- 0L
while(TRUE) {
  if (timer_check(long_timer)) {
    cat("\nLong  timer fired at count: ", counter, "\n")
    break;
  } 
  if (timer_check(short_timer)) {
    cat("Short timer fired at count: ", counter,  "\n")
  } 
  counter <- counter + 1L
}