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 /* 28 * ASSERTION: 29 * Call to commit() on a buffer after it has been discarded is silently 30 * ignored. 31 * 32 * SECTION: Speculative Tracing/Committing a Speculation; 33 * Options and Tunables/cleanrate 34 * 35 */ 36 #pragma D option quiet 37 #pragma D option cleanrate=3000hz 38 39 BEGIN 40 { 41 self->i = 0; 42 self->commit = 0; 43 self->discard = 0; 44 var1 = speculation(); 45 printf("Speculation ID: %d\n", var1); 46 } 47 48 BEGIN 49 /var1/ 50 { 51 speculate(var1); 52 printf("This statement and the following are speculative!!\n"); 53 printf("Speculating on id: %d\n", var1); 54 self->i++; 55 } 56 57 BEGIN 58 /(self->i)/ 59 { 60 discard(var1); 61 self->discard++; 62 commit(var1); 63 self->commit++; 64 } 65 66 BEGIN 67 /self->commit/ 68 { 69 printf("Commited a discarded buffer\n"); 70 exit(0); 71 } 72 73 74 BEGIN 75 /!self->commit/ 76 { 77 printf("Couldnt commit a discarded buffer\n"); 78 exit(1); 79 } 80 81 ERROR 82 { 83 exit(1); 84 } 85