usr/src/cmd/dtrace/test/tst/common/usdt/tst.forker.ksh

   1 #!/usr/bin/ksh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22
  23 #
  24 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27 # ident "%Z%%M% %I%     %E% SMI"
  28 #
  29
  30 if [ $# != 1 ]; then
  31         echo expected one argument: '<'dtrace-path'>'
  32         exit 2
  33 fi
  34
  35 dtrace=$1
  36
  37 #
  38 # Test that we don't deadlock between forking and enabling/disabling USDT
  39 # probes. This test has succeeded if it completes at all.
  40 #
  41
  42 ./tst.forker.exe &
  43 id=$!
  44
  45 while kill -0 $id >/dev/null 2>&1; do
  46         $dtrace -p $id -s /dev/stdin <<-EOF
  47                 forker*:::fire
  48                 /i++ == 4/
  49                 {
  50                         exit(0);
  51                 }
  52         EOF
  53 done
  54
  55 exit 0