1-- C97201B.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 A CONDITIONAL ENTRY CALL IS NOT ACCEPTED IF THERE IS
26-- ANOTHER TASK QUEUED FOR THE ENTRY.
27
28-- WRG 7/11/86
29-- PWN 09/11/94  REMOVED PRAGMA PRIORITY FOR ADA 9X.
30
31with Impdef;
32WITH REPORT; USE REPORT;
33WITH SYSTEM; USE SYSTEM;
34PROCEDURE C97201B IS
35
36
37BEGIN
38
39     TEST ("C97201B", "CHECK THAT A CONDITIONAL ENTRY CALL IS NOT " &
40                      "ACCEPTED IF THERE IS ANOTHER TASK QUEUED " &
41                      "FOR THE ENTRY");
42
43     DECLARE
44
45          TASK T IS
46               ENTRY E;
47               ENTRY SYNCH;
48               ENTRY DONE;
49          END T;
50
51          TASK BODY T IS
52          BEGIN
53               -- ENSURE THAT E HAS BEEN CALLED BEFORE PROCEEDING:
54               WHILE E'COUNT = 0 LOOP
55                    DELAY 1.0 * Impdef.One_Second;
56               END LOOP;
57
58               ACCEPT SYNCH;
59
60               SELECT
61                    WHEN IDENT_BOOL (FALSE) =>
62                         ACCEPT E;
63                         FAILED ("CLOSED ALTERNATIVE TAKEN");
64               OR
65                    ACCEPT DONE DO
66                         IF E'COUNT /= 1 THEN
67                              FAILED (NATURAL'IMAGE(E'COUNT) &
68                                      " CALLS WERE QUEUED FOR ENTRY " &
69                                      "E OF TASK T");
70                         END IF;
71                    END DONE;
72               OR
73                    DELAY 1000.0 * Impdef.One_Second;
74                    FAILED ("DELAY EXPIRED; E'COUNT =" &
75                            NATURAL'IMAGE(E'COUNT) );
76               END SELECT;
77
78               WHILE E'COUNT > 0 LOOP
79                    ACCEPT E;
80               END LOOP;
81          END T;
82
83          TASK AGENT;
84
85          TASK BODY AGENT IS
86          BEGIN
87               T.E;
88          END AGENT;
89
90     BEGIN
91
92          T.SYNCH;
93
94          DELAY 10.0 * Impdef.One_Second;
95
96          SELECT
97               T.E;
98               FAILED ("CONDITIONAL ENTRY CALL ACCEPTED" );
99          ELSE
100               COMMENT ("ELSE PART EXECUTED");
101               T.DONE;
102          END SELECT;
103
104     END;
105
106     RESULT;
107
108END C97201B;
109