usr/src/cmd/dtrace/test/tst/common/funcs/tst.ftruncate.ksh

   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 #ident  "%Z%%M% %I%     %E% SMI"
  27
  28 script()
  29 {
  30         $dtrace -q -o $tmpfile -s /dev/stdin <<EOF
  31         tick-10ms
  32         {
  33                 printf("%d\n", i++);
  34         }
  35
  36         tick-10ms
  37         /i == 10/
  38         {
  39                 ftruncate();
  40         }
  41
  42         tick-10ms
  43         /i == 20/
  44         {
  45                 exit(0);
  46         }
  47 EOF
  48 }
  49
  50 if [ $# != 1 ]; then
  51         echo expected one argument: '<'dtrace-path'>'
  52         exit 2
  53 fi
  54
  55 dtrace=$1
  56 tmpfile=/tmp/tst.ftruncate.$$
  57
  58 script
  59 status=$?
  60
  61 cat $tmpfile
  62 rm $tmpfile
  63
  64 exit $status