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1 -- C97201B.ADA
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2
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 -- CHECK THAT A CONDITIONAL ENTRY CALL IS NOT ACCEPTED IF THERE IS
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26 -- ANOTHER TASK QUEUED FOR THE ENTRY.
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27
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28 -- WRG 7/11/86
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29 -- PWN 09/11/94 REMOVED PRAGMA PRIORITY FOR ADA 9X.
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30
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31 with Impdef;
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32 WITH REPORT; USE REPORT;
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33 WITH SYSTEM; USE SYSTEM;
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34 PROCEDURE C97201B IS
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35
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36
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37 BEGIN
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38
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39 TEST ("C97201B", "CHECK THAT A CONDITIONAL ENTRY CALL IS NOT " &
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40 "ACCEPTED IF THERE IS ANOTHER TASK QUEUED " &
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41 "FOR THE ENTRY");
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42
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43 DECLARE
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44
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45 TASK T IS
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46 ENTRY E;
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47 ENTRY SYNCH;
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48 ENTRY DONE;
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49 END T;
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50
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51 TASK BODY T IS
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52 BEGIN
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53 -- ENSURE THAT E HAS BEEN CALLED BEFORE PROCEEDING:
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54 WHILE E'COUNT = 0 LOOP
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55 DELAY 1.0 * Impdef.One_Second;
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56 END LOOP;
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57
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58 ACCEPT SYNCH;
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59
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60 SELECT
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61 WHEN IDENT_BOOL (FALSE) =>
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62 ACCEPT E;
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63 FAILED ("CLOSED ALTERNATIVE TAKEN");
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64 OR
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65 ACCEPT DONE DO
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66 IF E'COUNT /= 1 THEN
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67 FAILED (NATURAL'IMAGE(E'COUNT) &
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68 " CALLS WERE QUEUED FOR ENTRY " &
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69 "E OF TASK T");
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70 END IF;
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71 END DONE;
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72 OR
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73 DELAY 1000.0 * Impdef.One_Second;
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74 FAILED ("DELAY EXPIRED; E'COUNT =" &
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75 NATURAL'IMAGE(E'COUNT) );
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76 END SELECT;
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77
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78 WHILE E'COUNT > 0 LOOP
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79 ACCEPT E;
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80 END LOOP;
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81 END T;
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82
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83 TASK AGENT;
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84
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85 TASK BODY AGENT IS
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86 BEGIN
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87 T.E;
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88 END AGENT;
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89
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90 BEGIN
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91
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92 T.SYNCH;
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93
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94 DELAY 10.0 * Impdef.One_Second;
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95
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96 SELECT
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97 T.E;
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98 FAILED ("CONDITIONAL ENTRY CALL ACCEPTED" );
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99 ELSE
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100 COMMENT ("ELSE PART EXECUTED");
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101 T.DONE;
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102 END SELECT;
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103
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104 END;
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105
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106 RESULT;
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107
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108 END C97201B;
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