| 1 | -- Copyright 2009-2016 Free Software Foundation, Inc. |
| 2 | -- |
| 3 | -- This program is free software; you can redistribute it and/or modify |
| 4 | -- it under the terms of the GNU General Public License as published by |
| 5 | -- the Free Software Foundation; either version 3 of the License, or |
| 6 | -- (at your option) any later version. |
| 7 | -- |
| 8 | -- This program is distributed in the hope that it will be useful, |
| 9 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | -- GNU General Public License for more details. |
| 12 | -- |
| 13 | -- You should have received a copy of the GNU General Public License |
| 14 | -- along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | |
| 16 | procedure Foo is |
| 17 | |
| 18 | task type Caller is |
| 19 | entry Initialize; |
| 20 | entry Call_Break_Me; |
| 21 | entry Finalize; |
| 22 | end Caller; |
| 23 | type Caller_Ptr is access Caller; |
| 24 | |
| 25 | procedure Break_Me is |
| 26 | begin |
| 27 | null; |
| 28 | end Break_Me; |
| 29 | |
| 30 | task body Caller is |
| 31 | begin |
| 32 | accept Initialize do |
| 33 | null; |
| 34 | end Initialize; |
| 35 | accept Call_Break_Me do |
| 36 | Break_Me; |
| 37 | end Call_Break_Me; |
| 38 | accept Finalize do |
| 39 | null; |
| 40 | end Finalize; |
| 41 | end Caller; |
| 42 | |
| 43 | Task_List : array (1 .. 3) of Caller_Ptr; |
| 44 | |
| 45 | begin |
| 46 | |
| 47 | -- Start all our tasks, and call the "Initialize" entry to make |
| 48 | -- sure all of them have now been started. We call that entry |
| 49 | -- immediately after having created the task in order to make sure |
| 50 | -- that we wait for that task to be created before we try to create |
| 51 | -- another one. That way, we know that the order in our Task_List |
| 52 | -- corresponds to the order in the GNAT runtime. |
| 53 | for J in Task_List'Range loop |
| 54 | Task_List (J) := new Caller; |
| 55 | Task_List (J).Initialize; |
| 56 | end loop; |
| 57 | |
| 58 | -- Next, call their Call_Break_Me entry of each task, using the same |
| 59 | -- order as the order used to create them. |
| 60 | for J in Task_List'Range loop -- STOP_HERE |
| 61 | Task_List (J).Call_Break_Me; |
| 62 | end loop; |
| 63 | |
| 64 | -- And finally, let all the tasks die... |
| 65 | for J in Task_List'Range loop |
| 66 | Task_List (J).Finalize; |
| 67 | end loop; |
| 68 | end Foo; |