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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . E X E C U T I O N _ T I M E . T I M E R S --
-- --
-- S p e c --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. In accordance with the copyright of that document, you can freely --
-- copy and modify this specification, provided that if you redistribute a --
-- modified version, any changes that you have made are clearly indicated. --
-- --
------------------------------------------------------------------------------
-- This unit is not implemented in typical GNAT implementations that lie on
-- top of operating systems, because it is infeasible to implement in such
-- environments.
-- If a target environment provides appropriate support for this package,
-- then the Unimplemented_Unit pragma should be removed from this spec and
-- an appropriate body provided.
with System;
package Ada.Execution_Time.Timers is
pragma Preelaborate;
pragma Unimplemented_Unit;
type Timer (T : not null access constant Ada.Task_Identification.Task_Id) is
tagged limited private;
type Timer_Handler is access protected procedure (TM : in out Timer);
Min_Handler_Ceiling : constant System.Any_Priority := System.Priority'Last;
procedure Set_Handler
(TM : in out Timer;
In_Time : Ada.Real_Time.Time_Span;
Handler : Timer_Handler);
procedure Set_Handler
(TM : in out Timer;
At_Time : CPU_Time;
Handler : Timer_Handler);
function Current_Handler (TM : Timer) return Timer_Handler;
procedure Cancel_Handler
(TM : in out Timer;
Cancelled : out Boolean);
function Time_Remaining (TM : Timer) return Ada.Real_Time.Time_Span;
Timer_Resource_Error : exception;
private
type Timer (T : access Ada.Task_Identification.Task_Id) is
tagged limited null record;
end Ada.Execution_Time.Timers;
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