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1d506c26 | 1 | -- Copyright 2009-2024 Free Software Foundation, Inc. |
8a18382f TT |
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 | Value : Integer := 0; | |
19 | ||
20 | task type Caller is | |
21 | entry Initialize; | |
22 | entry Call_Break_Me; | |
23 | entry Finalize; | |
24 | end Caller; | |
25 | type Caller_Ptr is access Caller; | |
26 | ||
27 | procedure Break_Me is | |
28 | begin | |
29 | Value := Value + 1; | |
30 | end Break_Me; | |
31 | ||
32 | task body Caller is | |
33 | begin | |
34 | accept Initialize do | |
35 | null; | |
36 | end Initialize; | |
37 | accept Call_Break_Me do | |
38 | Break_Me; | |
39 | end Call_Break_Me; | |
40 | accept Finalize do | |
41 | null; | |
42 | end Finalize; | |
43 | end Caller; | |
44 | ||
45 | Task_List : array (1 .. 3) of Caller_Ptr; | |
46 | ||
47 | begin | |
48 | ||
49 | -- Start all our tasks, and call the "Initialize" entry to make | |
50 | -- sure all of them have now been started. We call that entry | |
51 | -- immediately after having created the task in order to make sure | |
52 | -- that we wait for that task to be created before we try to create | |
53 | -- another one. That way, we know that the order in our Task_List | |
54 | -- corresponds to the order in the GNAT runtime. | |
55 | for J in Task_List'Range loop | |
56 | Task_List (J) := new Caller; | |
57 | Task_List (J).Initialize; | |
58 | end loop; | |
59 | ||
60 | -- Next, call their Call_Break_Me entry of each task, using the same | |
61 | -- order as the order used to create them. | |
62 | for J in Task_List'Range loop -- STOP_HERE | |
63 | Task_List (J).Call_Break_Me; | |
64 | end loop; | |
65 | ||
66 | -- And finally, let all the tasks die... | |
67 | for J in Task_List'Range loop | |
68 | Task_List (J).Finalize; | |
69 | end loop; | |
70 | ||
71 | null; -- STOP_HERE_2 | |
72 | ||
73 | end Foo; |