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- -- Copyright 2009-2022 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 Foo is
- Value : Integer := 0;
- task type Caller is
- entry Initialize;
- entry Call_Break_Me;
- entry Finalize;
- end Caller;
- type Caller_Ptr is access Caller;
- procedure Break_Me is
- begin
- Value := Value + 1;
- end Break_Me;
- task body Caller is
- begin
- accept Initialize do
- null;
- end Initialize;
- accept Call_Break_Me do
- Break_Me;
- end Call_Break_Me;
- accept Finalize do
- null;
- end Finalize;
- end Caller;
- Task_List : array (1 .. 3) of Caller_Ptr;
- begin
- -- Start all our tasks, and call the "Initialize" entry to make
- -- sure all of them have now been started. We call that entry
- -- immediately after having created the task in order to make sure
- -- that we wait for that task to be created before we try to create
- -- another one. That way, we know that the order in our Task_List
- -- corresponds to the order in the GNAT runtime.
- for J in Task_List'Range loop
- Task_List (J) := new Caller;
- Task_List (J).Initialize;
- end loop;
- -- Next, call their Call_Break_Me entry of each task, using the same
- -- order as the order used to create them.
- for J in Task_List'Range loop -- STOP_HERE
- Task_List (J).Call_Break_Me;
- end loop;
- -- And finally, let all the tasks die...
- for J in Task_List'Range loop
- Task_List (J).Finalize;
- end loop;
- null; -- STOP_HERE_2
- end Foo;
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