1-- C9A009A.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-- TEST ABORT DURING RENDEZVOUS
26
27-- CALLING TASK IN RENDEVOUS IS NAMED IN ABORT STATEMENT.
28
29-- JEAN-PIERRE ROSEN 09 MARCH 1984
30-- JBG 6/1/84
31-- JWC 6/28/85   RENAMED FROM C9A009D-B.ADA
32
33WITH SYSTEM; USE SYSTEM;
34WITH REPORT; USE REPORT;
35PROCEDURE C9A009A IS
36
37BEGIN
38
39     TEST("C9A009A", "CALLING TASK IS ABORTED DIRECTLY");
40
41     DECLARE
42     -- T1 CALLS T2, WHICH ABORTS T1 WHILE IN RENDEVOUS
43
44          T2_CONTINUED : BOOLEAN := FALSE;
45
46          TASK CONTINUED IS
47               ENTRY GET (T2_CONTINUED : OUT BOOLEAN);
48               ENTRY PUT (T2_CONTINUED : IN  BOOLEAN);
49          END CONTINUED;
50
51          TASK BODY CONTINUED IS
52               CONTINUED : BOOLEAN := FALSE;
53          BEGIN
54               LOOP
55                    SELECT
56                         ACCEPT GET (T2_CONTINUED : OUT BOOLEAN) DO
57                              T2_CONTINUED := CONTINUED;
58                         END GET;
59                    OR
60                         ACCEPT PUT (T2_CONTINUED : IN BOOLEAN) DO
61                              CONTINUED := T2_CONTINUED;
62                         END PUT;
63                    OR
64                         TERMINATE;
65                    END SELECT;
66               END LOOP;
67          END CONTINUED;
68
69     BEGIN     -- THIS BLOCK WILL MAKE SURE T2 IS TERMINATED, AND SO,
70               -- T2_CONTINUED IS ASSIGNED A VALUE IF T2 CONTINUES
71               -- EXECUTION CORRECTLY.
72
73          DECLARE
74
75               TASK T1;
76
77               TASK T2 IS
78                    ENTRY E1;
79               END T2;
80
81               TASK BODY T1 IS
82               BEGIN
83                    T2.E1;
84                    FAILED ("T1 NOT ABORTED");
85               EXCEPTION
86                    WHEN TASKING_ERROR =>
87                         FAILED ("TASKING_ERROR RAISED IN T1");
88                    WHEN OTHERS =>
89                         FAILED ("OTHER EXCEPTION RAISED - T1");
90               END T1;
91
92               TASK BODY T2 IS
93               BEGIN
94                    ACCEPT E1 DO
95                         ABORT T1;
96                         ABORT T1;
97                         ABORT T1; -- WHY NOT?
98                         IF T1'TERMINATED THEN
99                              FAILED ("T1 PREMATURELY TERMINATED");
100                         END IF;
101                    END E1;
102                    CONTINUED.PUT (T2_CONTINUED => TRUE);
103               END T2;
104          BEGIN
105               NULL;
106          END;
107     -- T2 NOW TERMINATED
108          CONTINUED.GET (T2_CONTINUED);
109          IF NOT T2_CONTINUED THEN
110               FAILED ("WHEN CALLER WAS ABORTED IN RENDEVOUS, CALLED " &
111                       "TASK DID NOT CONTINUE");
112          END IF;
113     END;
114
115     RESULT;
116
117END C9A009A;
118