usr/src/cmd/dtrace/test/tst/common/speculation/tst.ExitAftDiscard.d

   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 2006 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: Using exit after discard should work fine.
  31  *
  32  * SECTION: Speculative Tracing/Discarding a Speculation
  33  *
  34  */
  35 #pragma D option quiet
  36
  37 BEGIN
  38 {
  39         self->i = 0;
  40         self->spec = speculation();
  41 }
  42
  43 BEGIN
  44 /self->spec/
  45 {
  46         speculate(self->spec);
  47         self->i++;
  48         printf("self->i: %d\n", self->i);
  49 }
  50
  51 BEGIN
  52 /self->i/
  53 {
  54         discard(self->spec);
  55         exit(0);
  56 }