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-- Copyright 2011-2012 Free Software Foundation, Inc.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
procedure Task_Switch is
-------------------
-- Declaractions --
-------------------
task type Callee is
entry Finito;
end Callee;
type Callee_Ptr is access Callee;
task type Caller is
end Caller;
type Caller_Ptr is access Caller;
procedure Break_Me;
My_Caller : Caller_Ptr;
My_Callee : Callee_Ptr;
------------
-- Bodies --
------------
task body Callee is
begin
-- Just wait until we are told to terminate this task.
-- This is just to maintain this task alive.
accept Finito do
null;
end Finito;
end Callee;
task body Caller is
begin
Break_Me;
My_Callee.Finito;
end Caller;
procedure Break_Me is
begin
null;
end Break_Me;
begin
-- Make sure to create the Callee task first... And then give it
-- enough time to complete its activation phase before we start
-- the Caller task.
My_Callee := new Callee;
delay 0.1;
My_Caller := new Caller;
end Task_Switch;
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