1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
-- C97301D.ADA
-- Grant of Unlimited Rights
--
-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
-- unlimited rights in the software and documentation contained herein.
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
-- this public release, the Government intends to confer upon all
-- recipients unlimited rights equal to those held by the Government.
-- These rights include rights to use, duplicate, release or disclose the
-- released technical data and computer software in whole or in part, in
-- any manner and for any purpose whatsoever, and to have or permit others
-- to do so.
--
-- DISCLAIMER
--
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
-- PARTICULAR PURPOSE OF SAID MATERIAL.
--*
-- CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT LEAST THE SPECIFIED
-- AMOUNT OF TIME IF A RENDEVOUS IS NOT POSSIBLE.
-- CASE D: THE BODY OF THE TASK CONTAINING THE CALLED ENTRY
-- DOES NOT CONTAIN AN ACCEPT_STATEMENT FOR THAT ENTRY.
-- RJW 3/31/86
with Impdef;
WITH REPORT; USE REPORT;
WITH CALENDAR; USE CALENDAR;
PROCEDURE C97301D IS
OR_BRANCH_TAKEN : BOOLEAN := FALSE;
BEGIN
TEST ("C97301D", "CHECK THAT A TIMED_ENTRY_CALL DELAYS FOR AT " &
"LEAST THE SPECIFIED AMOUNT OF TIME WHEN THE " &
"BODY OF THE TASK CONTAINING THE CALLED ENTRY " &
"DOES NOT CONTAIN AN ACCEPT_STATEMENT FOR " &
"THAT ENTRY" );
DECLARE
START_TIME : TIME;
WAIT_TIME : CONSTANT DURATION := 10.0 * Impdef.One_Second;
TASK T IS
ENTRY DO_IT_NOW_OR_WAIT;
ENTRY KEEP_ALIVE;
END T;
TASK BODY T IS
BEGIN
-- NO ACCEPT_STATEMENT FOR THE ENTRY_CALL BEING TESTED.
ACCEPT KEEP_ALIVE; -- TO PREVENT THIS SERVER TASK FROM
-- TERMINATING IF
-- UPON ACTIVATION
-- IT GETS TO RUN
-- AHEAD OF THE CALLER (WHICH
-- WOULD LEAD TO A SUBSEQUENT
-- TASKING_ERROR AT THE TIME
-- OF THE NO-WAIT CALL).
END;
BEGIN
START_TIME := CLOCK;
SELECT
T.DO_IT_NOW_OR_WAIT;
OR
-- THIS BRANCH MUST BE CHOSEN.
DELAY WAIT_TIME;
IF CLOCK >= (WAIT_TIME + START_TIME) THEN
NULL;
ELSE
FAILED ( "INSUFFICIENT WAITING TIME" );
END IF;
OR_BRANCH_TAKEN := TRUE;
COMMENT( "OR_BRANCH TAKEN" );
END SELECT;
T.KEEP_ALIVE;
EXCEPTION
WHEN TASKING_ERROR =>
FAILED ( "TASKING ERROR RAISED" );
END; -- END OF BLOCK CONTAINING THE ENTRY CALL.
-- BY NOW, THE TASK IS TERMINATED.
IF OR_BRANCH_TAKEN THEN
NULL;
ELSE
FAILED( "RENDEZVOUS ATTEMPTED?" );
END IF;
RESULT;
END C97301D;
|
