14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * CDDL HEADER START
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * The contents of this file are subject to the terms of the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Common Development and Distribution License (the "License").
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * You may not use this file except in compliance with the License.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * See the License for the specific language governing permissions
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * and limitations under the License.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * When distributing Covered Code, include this CDDL HEADER in each
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * If applicable, add the following below this CDDL HEADER, with the
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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * information: Portions Copyright [yyyy] [name of copyright owner]
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * CDDL HEADER END
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Use is subject to license terms.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#pragma ident "%Z%%M% %I% %E% SMI"
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * ASSERTION:
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Positive test for ring buffer policy.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * SECTION: Buffers and Buffering/ring Policy;
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Buffers and Buffering/Buffer Sizes;
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Options and Tunables/bufsize;
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * We make some regrettable assumptions about the implementation in this test.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * First, we assume that each entry for the printf() of an int takes _exactly_
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * eight bytes (four bytes for the EPID, four bytes for the payload). Second,
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * we assume that by allocating storage for n + 1 records, we will get exactly
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * n. Here is why: the final predicate that evaluates to false will reserve
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * space that it won't use. This act of reservation will advance the wrapped
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * offset. That record won't be subsequently used, but the wrapped offset has
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * advanced. (And in this case, that old record is clobbered by the exit()
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * anyway.) Thirdly: we rely on t_cpu/cpu_id. Finally: we rely on being
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * able to run on the CPU that we first ran on.