CPAL Playground

/*
Licence Creative Commons CC0 - "No Rights Reserved"
@keywords activation, triggered; next_activations; init() function; wakeup_at()
*/

const time64: period = 50ms;

processdef My_Process()
{
  state Main {
    IO.println("Current activation released at %t", self.current_activation);
    loop over self.next_activations with it {
        IO.println("An activation scheduled in %t", time64.as(it.current));
    }
  }
}

process My_Process: task1[][require_activation(task1)]();

init() {

/* Schedule a process activation at time 150ms*/ 
  wakeup_at(task1, 150ms);
  /* This call is without effect since an activation is already planed at 150 ms*/ 
  wakeup_at(task1, 150ms);
  /* Schedule another activation, at time 300ms */
  wakeup_at(task1, 300ms);
  /* A second activation is released at time 300ms */ 
  wakeup_also_at(task1, 300ms);

/* Scheduling a process activation in relative time */
  wakeup_in(task1, 400ms);
  /* This call is ignored as an activation is already planed at t=500ms */
  wakeup_in(task1, 400ms);
  /* This call will add another instance at t=500ms */ 
  wakeup_also_in(task1, 400ms);
  
}

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Simulation
Tasks diagram


Quiet mode disabled
[0.000000000000:ASSIGN] Assign cpal_system new value: Scheduling_Policy.FIFO
[0.000000000000:ASSIGN][0.000000000000] Pushed task1 new value: 150ms
[0.000000000000:ASSIGN][0.000000000000] Pushed task1 new value: 300ms
[0.000000000000:ASSIGN][0.000000000000] Pushed task1 new value: 300ms
[0.000000000000:ASSIGN][0.000000000000] Pushed task1 new value: 400ms
[0.000000000000:ASSIGN][0.000000000000] Pushed task1 new value: 400ms
[0.150000000000:wakeup-at:STARTING_TASK] 'task1'
[0.150000000000:STATE] process "My_Process", instance "task1", state "Main"
[0.150000000000:PRINTLN] Current activation released at 150ms
[0.150000000000:PRINTLN] An activation scheduled in 150ms
[0.150000000000:PRINTLN] An activation scheduled in 150ms
[0.150000000000:PRINTLN] An activation scheduled in 250ms
[0.150000000000:PRINTLN] An activation scheduled in 250ms
[0.150000000000:wakeup-at:TASK_FINISHED] 'task1'
[0.300000000000:wakeup-at:STARTING_TASK] 'task1'
[0.300000000000:PRINTLN] Current activation released at 300ms
[0.300000000000:PRINTLN] An activation scheduled in 0
[0.300000000000:PRINTLN] An activation scheduled in 100ms
[0.300000000000:PRINTLN] An activation scheduled in 100ms
[0.300000000000:wakeup-at:TASK_FINISHED] 'task1'
[0.300000000000:wakeup-at:STARTING_TASK] 'task1'
[0.300000000000:PRINTLN] Current activation released at 300ms
[0.300000000000:PRINTLN] An activation scheduled in 100ms
[0.300000000000:PRINTLN] An activation scheduled in 100ms
[0.300000000000:wakeup-at:TASK_FINISHED] 'task1'
[0.400000000000:wakeup-at:STARTING_TASK] 'task1'
[0.400000000000:PRINTLN] Current activation released at 400ms
[0.400000000000:PRINTLN] An activation scheduled in 0
[0.400000000000:wakeup-at:TASK_FINISHED] 'task1'
[0.400000000000:wakeup-at:STARTING_TASK] 'task1'
[0.400000000000:PRINTLN] Current activation released at 400ms
[0.400000000000:wakeup-at:TASK_FINISHED] 'task1'
EXIT (SUCCESS) AT 3s (3000000000000)