1-- C93004D.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-- CHECK THAT WHEN AN EXCEPTION IS RAISED DURING THE ACTIVATION OF A
26-- TASK, OTHER TASKS ARE UNAFFECTED.
27
28-- THIS TEST CHECKS THE CASE IN WHICH SOME OF THE OTHER TASKS ARE
29-- PERHAPS ACTIVATED BEFORE THE EXCEPTION OCCURS AND SOME TASKS ARE
30-- PERHAPS ACTIVATED AFTER.
31
32-- THE ENCLOSING BLOCK RECEIVES TASKING_ERROR.
33
34-- CHECK THAT TASKS WAITING FOR ENTRIES OF SUCH TASKS RECEIVE
35-- TASKING_ERROR.
36
37-- R. WILLIAMS 8/6/86
38-- PWN 11/30/94 REMOVED PRAGMA PRIORITY INSTANCES FOR ADA 9X.
39
40WITH SYSTEM; USE SYSTEM;
41WITH REPORT; USE REPORT;
42PROCEDURE C93004D IS
43
44
45BEGIN
46     TEST ( "C93004D", "CHECK THAT WHEN AN EXCEPTION IS RAISED " &
47                       "DURING ACTIVATION OF A TASK, OTHER TASKS " &
48                       "ARE NOT AFFECTED. IN THIS TEST, SOME OF THE " &
49                       "TASKS ARE PERHAPS ACTIVATED BEFORE THE " &
50                       "EXCEPTION OCCURS AND SOME PERHAPS AFTER" );
51
52
53     DECLARE
54
55          TASK T0 IS
56               ENTRY E;
57          END T0;
58
59          TASK TYPE T1 IS
60          END T1;
61
62          TASK TYPE T2 IS
63               ENTRY E;
64          END T2;
65
66          ARR_T2: ARRAY(INTEGER RANGE 1..4) OF T2;
67
68          TYPE AT1 IS ACCESS T1;
69
70          TASK BODY T0 IS
71          BEGIN
72               ACCEPT E;
73          END T0;
74
75          PACKAGE START_T1 IS      -- THIS PACKAGE TO AVOID ACCESS
76          END START_T1;            -- BEFORE ELABORATION ON T1.
77
78          TASK BODY T1 IS
79          BEGIN
80               DECLARE   -- THIS BLOCK TO CHECK THAT T1BIS TERMINATES.
81                    TASK T1BIS IS
82                    END T1BIS;
83
84                    TASK BODY T1BIS IS
85                    BEGIN
86                         ARR_T2(IDENT_INT(2)).E;
87                         FAILED ("RENDEZVOUS COMPLETED - T3");
88                    EXCEPTION
89                         WHEN TASKING_ERROR =>
90                              NULL;
91                         WHEN OTHERS =>
92                              FAILED("ABNORMAL EXCEPTION - T3");
93                    END T1BIS;
94               BEGIN
95                    NULL;
96               END;
97
98               ARR_T2(IDENT_INT(2)).E;   -- ARR_T2(2) IS NOW
99                                         -- TERMINATED.
100
101               FAILED ("RENDEZVOUS COMPLETED WITHOUT ERROR - T1");
102
103          EXCEPTION
104               WHEN TASKING_ERROR =>
105                    NULL;
106               WHEN OTHERS =>
107                    FAILED("ABNORMAL EXCEPTION - T1");
108          END;
109
110          PACKAGE BODY START_T1 IS
111               V_AT1 : AT1 := NEW T1;
112          END START_T1;
113
114          TASK BODY T2 IS
115               I : POSITIVE := IDENT_INT(0); -- RAISE CONSTRAINT_ERROR.
116          BEGIN
117               IF I /= IDENT_INT(2) OR I = IDENT_INT(1) + 1 THEN
118                    FAILED("T2 ACTIVATED OK");
119               END IF;
120          END T2;
121
122          TASK T3 IS
123               ENTRY E;
124          END T3;
125
126          TASK BODY T3 IS
127          BEGIN     -- T3 MUST BE ACTIVATED OK.
128               ACCEPT E;
129          END T3;
130
131     BEGIN -- T0, ARR_T2 (1 .. 4), T3 ACTIVATED HERE.
132
133          FAILED ("TASKING_ERROR NOT RAISED IN MAIN");
134          T3.E;          -- CLEAN UP.
135          T0.E;
136     EXCEPTION
137          WHEN TASKING_ERROR =>
138               BEGIN
139                    T3.E;
140                    T0.E;
141               EXCEPTION
142                    WHEN TASKING_ERROR =>
143                         FAILED ("T0 OR T3 NOT ACTIVATED");
144               END;
145          WHEN CONSTRAINT_ERROR =>
146               FAILED ("CONSTRAINT_ERROR RAISED IN MAIN");
147          WHEN OTHERS =>
148               FAILED ("ABNORMAL EXCEPTION IN MAIN-2");
149     END;
150
151     RESULT;
152END C93004D;
153