1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#pragma ident "%Z%%M% %I% %E% SMI" 28 29/* 30 * ASSERTION: 31 * Can call discard on an already discarded buffer. 32 * 33 * SECTION: Speculative Tracing/Discarding a Speculation; 34 * Options and Tunables/cleanrate 35 * 36 */ 37#pragma D option quiet 38#pragma D option cleanrate=3000hz 39 40BEGIN 41{ 42 self->i = 0; 43 self->discard1 = 0; 44 self->discard2 = 0; 45 var1 = speculation(); 46 printf("Speculation ID: %d\n", var1); 47} 48 49BEGIN 50/var1/ 51{ 52 speculate(var1); 53 printf("This statement and the following are speculative!!\n"); 54 printf("Speculating on id: %d\n", var1); 55 self->i++; 56} 57 58BEGIN 59/(self->i)/ 60{ 61 discard(var1); 62 self->discard1++; 63 discard(var1); 64 self->discard2++; 65} 66 67BEGIN 68/(self->discard2) && (self->discard1)/ 69{ 70 printf("Discarded a discarded buffer\n"); 71 exit(0); 72} 73 74 75BEGIN 76/(!self->discard2) || (!self->discard1)/ 77{ 78 printf("Couldnt discard a discarded buffer\n"); 79 exit(1); 80} 81 82ERROR 83{ 84 exit(1); 85} 86