|
111
|
1 -- C95040D.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 TASKING_ERROR IS RAISED IN A CALLING
|
|
|
26 -- TASK WHEN THE TASK OWNING THE ENTRY TERMINATES BEFORE RENDEZVOUS
|
|
|
27 -- CAN OCCUR.
|
|
|
28
|
|
|
29 -- CHECK THAT RE-RAISING TASKING_ERROR, ONCE TRAPPED IN THE CALLER,
|
|
|
30 -- DOES NOT PROPAGATE OUTSIDE THE TASK BODY.
|
|
|
31
|
|
|
32 -- GOM 11/29/84
|
|
|
33 -- JWC 05/14/85
|
|
|
34 -- PWB 02/11/86 CORRECTED CALL TO TEST TO SHOW CORRECT TEST NAME.
|
|
|
35 -- RLB 12/15/99 REMOVED POTENTIALLY ERRONEOUS CALLS TO REPORT.COMMENT.
|
|
|
36
|
|
|
37 WITH REPORT;
|
|
|
38 USE REPORT;
|
|
|
39
|
|
|
40 PROCEDURE C95040D IS
|
|
|
41
|
|
|
42 PROCEDURE DRIVER IS
|
|
|
43
|
|
|
44 TASK NEST IS
|
|
|
45 ENTRY OUTER;
|
|
|
46 ENTRY INNER;
|
|
|
47 END NEST;
|
|
|
48
|
|
|
49 TASK SLAVE;
|
|
|
50
|
|
|
51 TASK BODY NEST IS
|
|
|
52 BEGIN
|
|
|
53 --COMMENT("AT TOP OF 'NEST' TASK WAITING ON 'OUTER' " &
|
|
|
54 -- "RENDEZVOUS");
|
|
|
55
|
|
|
56 ACCEPT OUTER DO
|
|
|
57 --COMMENT("IN 'OUTER' RENDEZVOUS OF 'NEST' TASK " &
|
|
|
58 -- "ABOUT TO 'RETURN'");
|
|
|
59
|
|
|
60 RETURN; -- CAUSES 'INNER' RENDEZVOUS TO BE SKIPPED.
|
|
|
61
|
|
|
62 ACCEPT INNER DO
|
|
|
63 FAILED("'INNER' RENDEZVOUS OF 'NEST' TASK " &
|
|
|
64 "SHOULD NEVER BE PERFORMED");
|
|
|
65 END INNER;
|
|
|
66 END OUTER;
|
|
|
67
|
|
|
68 --COMMENT("'OUTER' RENDEZVOUS COMPLETED IN 'NEST' TASK " &
|
|
|
69 -- "AND NOW TERMINATING");
|
|
|
70 END NEST;
|
|
|
71
|
|
|
72 TASK BODY SLAVE IS
|
|
|
73 BEGIN
|
|
|
74 --COMMENT("AT TOP OF 'SLAVE' TASK. CALLING 'INNER' " &
|
|
|
75 -- "RENDEZVOUS");
|
|
|
76
|
|
|
77 NEST.INNER;
|
|
|
78
|
|
|
79 FAILED("SHOULD HAVE RAISED 'TASKING_ERROR' IN 'SLAVE' " &
|
|
|
80 "TASK");
|
|
|
81 EXCEPTION
|
|
|
82 WHEN TASKING_ERROR =>
|
|
|
83 --COMMENT("'SLAVE' TASK CORRECTLY TRAPPING " &
|
|
|
84 -- "'TASKING_ERROR' AND RE-RAISING IT (BUT " &
|
|
|
85 -- "SHOULD NOT BE PROPAGATED)");
|
|
|
86 RAISE;
|
|
|
87 END SLAVE;
|
|
|
88
|
|
|
89 BEGIN -- START OF DRIVER PROCEDURE.
|
|
|
90
|
|
|
91 --COMMENT("AT TOP OF 'DRIVER'. CALLING 'OUTER' ENTRY OF " &
|
|
|
92 -- "'NEST' TASK");
|
|
|
93
|
|
|
94 NEST.OUTER;
|
|
|
95
|
|
|
96 --COMMENT("'OUTER' RENDEZVOUS COMPLETED. 'DRIVER' AWAITING " &
|
|
|
97 -- "TERMINATION OF 'NEST' AND 'SLAVE' TASKS");
|
|
|
98
|
|
|
99 EXCEPTION
|
|
|
100 WHEN TASKING_ERROR =>
|
|
|
101 FAILED("'TASKING_ERROR' CAUGHT IN 'DRIVER' WHEN IT " &
|
|
|
102 "SHOULD HAVE BEEN CAUGHT IN 'SLAVE' TASK, OR " &
|
|
|
103 "'TASKING_ERROR' WAS INCORRECTLY PROPAGATED BY " &
|
|
|
104 "'SLAVE' TASK");
|
|
|
105 END DRIVER;
|
|
|
106
|
|
|
107 BEGIN -- START OF MAIN PROGRAM.
|
|
|
108
|
|
|
109 TEST("C95040D","CHECK THAT 'TASKING_ERROR' IS RAISED IN A " &
|
|
|
110 "CALLER TASK WHEN TASK OWNING THE ENTRY CANNOT " &
|
|
|
111 "PERFORM RENDEZVOUS. ALSO CHECK THAT " &
|
|
|
112 "'TASKING_ERROR', ONCE RAISED, IS NOT PROPAGATED " &
|
|
|
113 "OUTSIDE THE TASK BODY");
|
|
|
114
|
|
|
115 --COMMENT("MAIN PROGRAM CALLING 'DRIVER' PROCEDURE");
|
|
|
116
|
|
|
117 DRIVER;
|
|
|
118
|
|
|
119 --COMMENT("MAIN PROGRAM NOW TERMINATING");
|
|
|
120
|
|
|
121 RESULT;
|
|
|
122 END C95040D;
|
