1-- C93005C.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 IF AN EXCEPTION IS RAISED IN A DECLARATIVE PART OR PACKAGE 26-- SPECIFICATION, A TASK DECLARED IN THE SAME DECLARATIVE PART BECOMES 27-- COMPLETED BEFORE IT HAS BEEN ACTIVATED; ANY TASKS AWAITING A 28-- RENDEZVOUS WITH THE COMPLETED RECEIVE TASKING_ERROR. 29 30-- CASE 1: TASKS IN DECLARATIVE PART OF A BLOCK AND PACKAGE 31-- SPECIFICATION. THE TASKS DEPEND ON THE DECLARATIVE PART. 32 33-- RAC 19-MAR-1985 34-- JBG 06/03/85 35-- EG 10/30/85 ELIMINATE THE USE OF NUMERIC_ERROR IN TEST. 36-- PWN 09/11/94 REMOVED PRAGMA PRIORITY FOR ADA 9X. 37 38WITH REPORT; USE REPORT; 39WITH SYSTEM; USE SYSTEM; 40PRAGMA ELABORATE (REPORT); 41 42with Impdef; 43 44PACKAGE C93005C_PK1 IS 45 46 -- THIS TYPE OF TASK IS ALWAYS UNACTIVATED. 47 TASK TYPE UNACTIVATED IS 48 ENTRY E; 49 END UNACTIVATED; 50 51 TYPE ACC_UNACTIVATED IS ACCESS UNACTIVATED; 52 53 -- ******************************************* 54 -- DEFINITIONS FOR MUST NOT BE TERMINATED TASKS 55 -- ******************************************* 56 -- 57 -- THIS SET OF DECLARATIONS DEFINES A RECORD TYPE MNT (MUST NOT 58 -- TERMINATE). WHENEVER SUCH A RECORD IS DECLARED, A COUNT IS 59 -- INCREMENTED AND A TASK IS CREATED. THE TASK WILL DECREMENT THE 60 -- COUNT UNLESS IT IS INCORRECTLY AND PREMATURELY TERMINATED. 61 -- THE ROUTINE CHECK IS CALLED TO VERIFY WHETHER THE COUNT 62 -- HAS RETURNED TO 0 (ALL MNT TASKS GOT A CHANCE TO DO THEIR 63 -- DECREMENT). 64 65 -- AN MNT TASK. SUCH TASKS MUST NOT BE TERMINATED 66 -- BY ANYONE BUT THEMSELVES. 67 -- 68 TASK TYPE MNT_TASK IS 69 END MNT_TASK; 70 71 FUNCTION F RETURN INTEGER; 72 73 -- THE RECORD THAT IS DECLARED TO HOLD AN MNT TASK 74 -- AND FORCE CALLING F BEFORE CREATING THE TASK. 75 -- F INCREMENTS THE COUNT, THE TASK DECREMENTS THE 76 -- COUNT. 77 -- 78 TYPE MNT IS 79 RECORD 80 DUMMY : INTEGER := F; 81 T : MNT_TASK; 82 END RECORD; 83 84 PROCEDURE CHECK; 85 86 87 -- ******************************************* 88 -- END OF DEFINITIONS FOR MUST NOT BE TERMINATED TASKS 89 -- ******************************************* 90 91END C93005C_PK1; 92 93 94PACKAGE BODY C93005C_PK1 IS 95 96-- THIS TASK IS CALLED IF AN UNACTIVATED TASK 97-- IS EVER INCORRECTLY ACTIVATED. IT REPORTS FAILURE. 98 99 TASK T IS 100 ENTRY E; 101 END; 102 103 -- *********************************************** 104 -- START OF DEFINITIONS FOR MUST NOT TERMINATE TASKS 105 -- *********************************************** 106 107-- COUNT OF TASKS THAT MUST NOT BE TERMINATED AND 108-- ARE STILL ACTIVE. 109 110 MNT_COUNT : INTEGER := 0; 111 112-- TASK TO SYNCHRONIZE THE MNT_COUNT VARIABLE 113 114 TASK MNT_COUNTER IS 115 ENTRY INCR; 116 ENTRY DECR; 117 END MNT_COUNTER; 118 119-- SYNCHRONIZING TASK 120 121 TASK BODY MNT_COUNTER IS 122 BEGIN 123 LOOP 124 SELECT 125 ACCEPT INCR DO 126 MNT_COUNT := MNT_COUNT +1; 127 END INCR; 128 129 OR ACCEPT DECR DO 130 MNT_COUNT := MNT_COUNT -1; 131 END DECR; 132 133 OR TERMINATE; 134 135 END SELECT; 136 END LOOP; 137 END MNT_COUNTER; 138 139-- INCREMENT THE MNT_COUNT WHEN A TASK IS CREATED 140-- 141 FUNCTION F RETURN INTEGER IS 142 BEGIN 143 MNT_COUNTER.INCR; 144 RETURN 0; 145 END F; 146 147-- CHECK THAT THE MUST NOT BE TERMINATED TASKS ARE 148-- NOT YET TERMINATED AND THAT THE SYNCRHONIZING TASK 149-- ITSELF IS NOT TERMINATED. 150-- 151 PROCEDURE CHECK IS 152 BEGIN 153 IF MNT_COUNT /= 0 OR MNT_COUNTER'TERMINATED THEN 154 FAILED ("SOME MUST-NOT-TERMINATE TASK WAS PREMATURELY " & 155 "TERMINATED"); 156 END IF; 157-- RESET THE COUNT FOR THE NEXT SUBTEST: 158 MNT_COUNT := 0; 159 END CHECK; 160 161-- A MUST NOT BE TERMINATED TASK. DELAY LONG ENOUGH 162-- TO BE THE LAST TASK OF A SCOPE TO TERMINATE. THEN 163-- DECREMENT THE COUNTER. 164-- 165 TASK BODY MNT_TASK IS 166 BEGIN 167 DELAY 5.0 * Impdef.One_Second; 168 MNT_COUNTER.DECR; 169 END MNT_TASK; 170 171 -- *********************************************** 172 -- END OF DEFINITIONS FOR MUST NOT TERMINATE TASKS 173 -- *********************************************** 174 175 TASK BODY T IS 176 BEGIN 177 LOOP 178 SELECT 179 ACCEPT E DO 180 FAILED ("SOME TYPE U TASK WAS ACTIVATED"); 181 END E; 182 183 OR TERMINATE; 184 END SELECT; 185 END LOOP; 186 END T; 187 188 -- TASKS OF TYPE UNACTIVATED MUST NEVER BE ACTIVATED. 189 -- 190 TASK BODY UNACTIVATED IS 191 BEGIN 192 T.E; 193 END UNACTIVATED; 194END C93005C_PK1; 195 196WITH REPORT, C93005C_PK1; 197USE REPORT, C93005C_PK1; 198WITH SYSTEM; USE SYSTEM; 199PROCEDURE C93005C IS 200 201 202BEGIN 203 204 TEST("C93005C", "TEST EXCEPTIONS TERMINATE NOT YET ACTIVATED " & 205 "TASKS"); 206 207 COMMENT("SUBTEST 1: TASKS IN DECL PART OF A BLOCK AND A PACKAGE " & 208 "SPEC"); 209 COMMENT(" THE TASKS DEPEND ON THE DECLARATIVE PART"); 210B1: DECLARE 211 X : MNT; 212 BEGIN 213B2: BEGIN 214B3: DECLARE 215 TYPE ACC_MNT IS ACCESS MNT; 216 T1 : UNACTIVATED; 217 M2 : ACC_MNT := NEW MNT; 218 219 PACKAGE RAISES_EXCEPTION IS 220 T2 : UNACTIVATED; 221 M3 : ACC_MNT := NEW MNT; 222 I : POSITIVE := IDENT_INT(0); -- RAISE 223 -- CONSTRAINT_ERROR EXCEPTION 224 END RAISES_EXCEPTION; 225 USE RAISES_EXCEPTION; 226 BEGIN -- WOULD HAVE BEEN ACTIVATED HERE 227 IF EQUAL (I, I) THEN 228 FAILED ("EXCEPTION NOT RAISED"); 229 END IF; 230 EXCEPTION 231 WHEN OTHERS => 232 FAILED ("EXCEPTION RAISED IN WRONG SCOPE"); 233 END B3; 234 EXCEPTION 235 WHEN CONSTRAINT_ERROR => 236 COMMENT ("SUBTEST 1 COMPLETED"); 237 WHEN OTHERS => 238 FAILED ("WRONG EXCEPTION RAISED IN B2"); 239 END B2; 240 END B1; 241 242 CHECK; 243 244 RESULT; 245 246EXCEPTION 247 WHEN OTHERS => 248 FAILED ("EXCEPTION NOT ABSORBED"); 249 RESULT; 250END C93005C; 251