gomp-20050608-branch/gcc/testsuite/ada/acats/tests/c9/c97201e.ada

   1 -- C97201E.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 RENDEZVOUS REQUESTED BY A CONDITIONAL_ENTRY_CALL
  26 --     IS PERFORMED ONLY IF IMMEDIATELY POSSIBLE.
  27
  28 -- CASE  E:  THE BODY OF THE TASK CONTAINING THE CALLED ENTRY
  29 --     DOES NOT CONTAIN AN ACCEPT_STATEMENT FOR THAT ENTRY  -
  30 --     AND THIS FACT CAN NOT BE DETERMINED STATICALLY.
  31 --     (THE ENTRY BELONGS TO AN ENTRY FAMILY; SOME FAMILY MEMBERS
  32 --     ARE "ACCEPTABLE", BUT NOT THE CALLED ONE.)
  33
  34
  35 -- RM 4/13/82
  36
  37
  38 WITH REPORT; USE REPORT;
  39 PROCEDURE C97201E IS
  40
  41      ELSE_BRANCH_TAKEN    :  BOOLEAN  :=  FALSE ;
  42
  43 BEGIN
  44
  45
  46      TEST ("C97201E", "CHECK THAT NO RENDEZVOUS REQUESTED BY"      &
  47                       " A CONDITIONAL_ENTRY_CALL CAN EVER OCCUR"   &
  48                       " IN THE ABSENCE OF A CORRESPONDING "        &
  49                       " ACCEPT_STATEMENT "                         );
  50
  51
  52      DECLARE
  53
  54           SUBTYPE  SHORT  IS  INTEGER RANGE 10..20 ;
  55
  56           KEEP_ALIVE  :  INTEGER  := 15 ;
  57
  58           TASK  T  IS
  59                ENTRY  DO_IT_NOW_ORELSE ( SHORT ) ;
  60           END  T ;
  61
  62
  63           TASK BODY  T  IS
  64           BEGIN
  65
  66                -- NO ACCEPT_STATEMENT FOR THE ENTRY_CALL BEING TESTED
  67                ACCEPT  DO_IT_NOW_ORELSE ( IDENT_INT(15) );
  68
  69                                      -- THIS ALSO PREVENTS THIS SERVER
  70                                      --     TASK FROM TERMINATING IF
  71                                      --     UPON ACTIVATION
  72                                      --     IT GETS TO RUN
  73                                      --     AHEAD OF THE CALLER (WHICH
  74                                      --     WOULD LEAD TO A SUBSEQUENT
  75                                      --     TASKING_ERROR AT THE TIME OF
  76                                      --     THE NO-WAIT CALL).
  77
  78           END ;
  79
  80
  81      BEGIN
  82
  83           SELECT
  84                T.DO_IT_NOW_ORELSE (10) ;  -- ACCEPT_STATEMENT HAS  15
  85           ELSE              -- (I.E. CALLER ADOPTS A NO-WAIT POLICY)
  86                             --      THEREFORE THIS BRANCH MUST BE CHOSEN
  87                ELSE_BRANCH_TAKEN := TRUE ;
  88                COMMENT( "ELSE_BRANCH  TAKEN" );
  89           END SELECT;
  90
  91           T.DO_IT_NOW_ORELSE(KEEP_ALIVE) ;-- THIS ALSO UPDATES NONLOCALS
  92
  93      END;   -- END OF BLOCK CONTAINING THE ENTRY CALL
  94
  95
  96      -- BY NOW, THE TASK IS TERMINATED
  97
  98      IF  ELSE_BRANCH_TAKEN  THEN
  99           NULL ;
 100      ELSE
 101           FAILED( "RENDEZVOUS ATTEMPTED?" );
 102      END IF;
 103
 104      RESULT;
 105
 106
 107 END  C97201E ;