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XAda.Dispatching.TTS API

Set_Plan

Set new TT plan to start at the end of the next mode change slot. This procedure can be invoked from any task.

procedure Set_Plan
  (TTP : Time_Triggered_Plan_Access);

Wait_For_Activation

TT works use this procedure to wait for their next assigned slot. The invoking task gets blocked until the next work slot with the proper Work_Id is reached. When task is released, the When_Was_Released result informs the caller task of the slot starting time.

If this procedure is invoked from within a TT slot it implicitly informs the TT scheduler that the current slot has been finished.

procedure Wait_For_Activation
  (Work_Id           : TT_Work_Id;
   When_Was_Released : out Ada.Real_Time.Time);

Continue_Sliced

TT works use this procedure to inform that the critical part of the current slot has been finished. It tranforms the current slot in a continuation slot.

procedure Continue_Sliced;

Leave_TT_Level

TT works use this procedure to inform the TT scheduler that there is no more work to do at TT priority level.

procedure Leave_TT_Level;

Get_Last_Plan_Release

Returns the last time the first slot of the plan was released.

function Get_Last_Plan_Release return Ada.Real_Time.Time;

Wait_For_Sync

Priority-based tasks use this procedure to wait for their next assigned sync slot. The invoking task gets blocked until the next sync slot with the proper Sync_Id is reached. If the sync slot is reached before the procedure is invoked, the caller tasks is not blocked and continues its execution. This behaviour is similar to use delay until with an absolute time in the past.

When task is released, the When_Was_Released result informs the caller task of the slot starting time.

If this procedure is invoked from within a TT slot it implicitly informs the TT scheduler that the current slot has been finished.

procedure Wait_For_Sync
  (Sync_Id           : TT_Sync_Id;
   When_Was_Released : out Ada.Real_Time.Time);