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|
-- C96001A.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.
--*
-- OBJECTIVE:
-- CHECK THAT A DELAY STATEMENT DELAYS EXECUTION FOR AT LEAST THE
-- SPECIFIED TIME. SPECIFICALLY,
-- (A) POSITIVE DELAY ARGUMENT.
-- (B) NEGATIVE DELAY ARGUMENT.
-- (C) ZERO DELAY ARGUMENT.
-- (D) DURATION'SMALL DELAY ARGUMENT.
-- (E) EXPRESSION OF TYPE DURATION AS DELAY ARGUMENT.
-- HISTORY:
-- CPP 8/14/84 CREATED ORIGINAL TEST.
-- RJW 11/13/87 ADDED CODE WHICH ALLOWS TEST TO REPORT "PASSED"
-- IF TICK > DURATION'SMALL.
with Impdef;
WITH CALENDAR; USE CALENDAR;
WITH SYSTEM; USE SYSTEM;
WITH REPORT; USE REPORT;
PROCEDURE C96001A IS
SUBTYPE INT IS INTEGER RANGE 0 .. 20_000;
BEGIN
TEST ("C96001A", "CHECK THAT DELAY STATEMENT DELAYS " &
"EXECUTION FOR AT LEAST THE SPECIFIED TIME");
---------------------------------------------
DECLARE -- (A)
X : DURATION := 5.0 * Impdef.One_Second;
OLD_TIME : TIME;
LAPSE : DURATION;
BEGIN -- (A)
LOOP
OLD_TIME := CLOCK;
DELAY X;
LAPSE := CLOCK - OLD_TIME;
EXIT;
END LOOP;
IF LAPSE < X THEN
FAILED ("DELAY DID NOT LAPSE AT LEAST 5.0 " &
"SECONDS - (A)");
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED - (A)");
END;
---------------------------------------------
DECLARE -- (B)
OLD_TIME : TIME;
LAPSE : DURATION;
BEGIN -- (B)
LOOP
OLD_TIME := CLOCK;
DELAY -5.0;
LAPSE := CLOCK - OLD_TIME;
EXIT;
END LOOP;
COMMENT ("(B) - NEGATIVE DELAY LAPSED FOR " &
INT'IMAGE (INT (LAPSE * 1_000)) & " MILLISECONDS");
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED - (B)");
END;
---------------------------------------------
DECLARE -- (C)
X : DURATION := 0.0;
OLD_TIME : TIME;
LAPSE : DURATION;
BEGIN -- (C)
LOOP
OLD_TIME := CLOCK;
DELAY X;
LAPSE := CLOCK - OLD_TIME;
EXIT;
END LOOP;
COMMENT ("(C) - ZERO DELAY LAPSED FOR " &
INT'IMAGE (INT (LAPSE * 1_000)) & " MILLISECONDS");
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED - (C)");
END;
---------------------------------------------
DECLARE -- (D)
X : DURATION := DURATION'SMALL;
OLD_TIME : TIME;
LAPSE : DURATION;
BEGIN -- (D)
LOOP
OLD_TIME := CLOCK;
DELAY X;
LAPSE := CLOCK - OLD_TIME;
EXIT;
END LOOP;
IF LAPSE < X THEN
IF TICK < DURATION'SMALL THEN
FAILED ("DELAY DID NOT LAPSE AT LEAST " &
"DURATION'SMALL SECONDS - (D)");
ELSE
COMMENT ("TICK > DURATION'SMALL SO DELAY IN " &
"'(D)' IS NOT MEASURABLE");
END IF;
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED - (D)");
END;
---------------------------------------------
DECLARE -- (E)
INC1 : DURATION := 2.0 * Impdef.One_Second;
INC2 : DURATION := 3.0 * Impdef.One_Second;
OLD_TIME : TIME;
LAPSE : DURATION;
BEGIN -- (E)
LOOP
OLD_TIME := CLOCK;
DELAY INC1 + INC2;
LAPSE := CLOCK - OLD_TIME;
EXIT;
END LOOP;
IF LAPSE < (INC1 + INC2) THEN
FAILED ("DELAY DID NOT LAPSE AT LEAST " &
"INC1 + INC2 SECONDS - (E)");
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED - (E)");
END;
RESULT;
END C96001A;
|
