1-- C95040C.ADA
2
3--                             Grant of Unlimited Rights
4--
5--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
6--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
7--     unlimited rights in the software and documentation contained herein.
8--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
9--     this public release, the Government intends to confer upon all
10--     recipients unlimited rights  equal to those held by the Government.
11--     These rights include rights to use, duplicate, release or disclose the
12--     released technical data and computer software in whole or in part, in
13--     any manner and for any purpose whatsoever, and to have or permit others
14--     to do so.
15--
16--                                    DISCLAIMER
17--
18--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
19--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
20--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
21--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
22--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
23--     PARTICULAR PURPOSE OF SAID MATERIAL.
24--*
25-- CHECKS THAT A TASK COMPLETED, BUT NOT TERMINATED (I.E. WAITING
26-- FOR TERMINATION OF A DEPENDENT TASK) IS NEITHER 'TERMINATED NOR
27-- 'CALLABLE.  CALLS TO ENTRIES BELONGING TO SUCH A TASK RAISE
28-- TASKING_ERROR.
29
30-- J.P. ROSEN, ADA PROJECT, NYU
31-- JBG 6/1/84
32-- JWC 6/28/85   RENAMED FROM C9A009A-B.ADA
33-- PWN 9/11/94   REMOVED PRAGMA PRIORITY FOR ADA 9X
34
35WITH REPORT; USE REPORT;
36WITH SYSTEM; USE SYSTEM;
37PROCEDURE C95040C IS
38BEGIN
39
40     TEST ("C95040C", "TASKING_ERROR RAISED WHEN CALLING COMPLETED " &
41                      "BUT UNTERMINATED TASK");
42
43     DECLARE
44
45          TASK T1 IS
46               ENTRY E;
47          END T1;
48
49          TASK BODY T1 IS
50
51               TASK T2 IS
52               END T2;
53
54               TASK BODY T2 IS
55               BEGIN
56                    COMMENT ("BEGIN T2");
57                    T1.E;          -- T1 WILL COMPLETE BEFORE THIS CALL
58                                   -- OR WHILE WAITING FOR THIS CALL TO
59                                   -- BE ACCEPTED.  WILL DEADLOCK IF
60                                   -- TASKING_ERROR IS NOT RAISED.
61                    FAILED ("NO TASKING_ERROR RAISED");
62               EXCEPTION
63                    WHEN TASKING_ERROR =>
64                         IF T1'CALLABLE THEN
65                              FAILED ("T1 STILL CALLABLE");
66                         END IF;
67
68                         IF T1'TERMINATED THEN    -- T1 CAN'T TERMINATE
69                                                  -- UNTIL T2 HAS
70                                                  -- TERMINATED.
71                              FAILED ("T1 TERMINATED");
72                         END IF;
73                    WHEN OTHERS =>
74                         FAILED ("WRONG EXCEPTION");
75               END T2;
76          BEGIN
77               NULL;
78          END;
79
80     BEGIN
81          NULL;
82     END;
83
84     RESULT;
85
86END C95040C;
87