diff options
Diffstat (limited to '')
-rw-r--r-- | src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d | 78 | ||||
-rw-r--r-- | src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d.out | 5 |
2 files changed, 83 insertions, 0 deletions
diff --git a/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d new file mode 100644 index 00000000..68e35889 --- /dev/null +++ b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d @@ -0,0 +1,78 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * ASSERTION: + * Positive test for ring buffer policy. + * + * SECTION: Buffers and Buffering/ring Policy; + * Buffers and Buffering/Buffer Sizes; + * Options and Tunables/bufsize; + * Options and Tunables/bufpolicy + */ + +/* + * We make some regrettable assumptions about the implementation in this test. + * First, we assume that each entry for the printf() of an int takes _exactly_ + * eight bytes (four bytes for the EPID, four bytes for the payload). Second, + * we assume that by allocating storage for n + 1 records, we will get exactly + * n. Here is why: the final predicate that evaluates to false will reserve + * space that it won't use. This act of reservation will advance the wrapped + * offset. That record won't be subsequently used, but the wrapped offset has + * advanced. (And in this case, that old record is clobbered by the exit() + * anyway.) Thirdly: we rely on t_cpu/cpu_id. Finally: we rely on being + * able to run on the CPU that we first ran on. + */ +#pragma D option bufpolicy=ring +#pragma D option bufsize=40 +#pragma D option quiet + +int n; + +BEGIN +{ + cpuid = -1; +} + +tick-10msec +/cpuid == -1/ +{ + cpuid = curthread->t_cpu->cpu_id; +} + +tick-10msec +/curthread->t_cpu->cpu_id == cpuid && n < 100/ +{ + printf("%d\n", n++); +} + +tick-10msec +/n == 100/ +{ + exit(0); +} diff --git a/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d.out b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d.out new file mode 100644 index 00000000..99fd231e --- /dev/null +++ b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/buffering/tst.ring3.d.out @@ -0,0 +1,5 @@ +96 +97 +98 +99 + |