70 lines
1.7 KiB
Ada
70 lines
1.7 KiB
Ada
-- Copyright 2011-2015 Free Software Foundation, Inc.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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procedure Task_Switch is
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-------------------
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-- Declaractions --
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-------------------
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task type Callee is
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entry Finito;
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end Callee;
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type Callee_Ptr is access Callee;
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task type Caller is
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end Caller;
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type Caller_Ptr is access Caller;
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procedure Break_Me;
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My_Caller : Caller_Ptr;
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My_Callee : Callee_Ptr;
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------------
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-- Bodies --
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------------
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task body Callee is
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begin
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-- Just wait until we are told to terminate this task.
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-- This is just to maintain this task alive.
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accept Finito do
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null;
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end Finito;
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end Callee;
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task body Caller is
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begin
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Break_Me;
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My_Callee.Finito;
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end Caller;
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procedure Break_Me is
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begin
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null;
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end Break_Me;
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begin
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-- Make sure to create the Callee task first... And then give it
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-- enough time to complete its activation phase before we start
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-- the Caller task.
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My_Callee := new Callee;
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delay 0.1;
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My_Caller := new Caller;
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end Task_Switch;
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