1 #! /usr/bin/ksh -p
   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 2009 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27 
  28 ################################################################################
  29 #
  30 # __stc_assertion_start
  31 #
  32 # ID: dir_pos003
  33 #
  34 # DESCRIPTION:
  35 #   Concurrently rename directory accross two trees. nfs should be able
  36 #   to handle race situation.
  37 #
  38 # STRATEGY:
  39 #   - Create two dirs 1/2/3/4/5 and a/b/c/d/e
  40 #   - Looply rename directory to create race situation.
  41 #     One process rename "a/b/c" to "1/2/3/c" and back again,
  42 #     another process rename "1" to "a/b/c/d/e/1" and back again.
  43 #   - The system should be stable to handle race situation.
  44 #
  45 # TESTABILITY: explicit
  46 #
  47 # TEST_AUTOMATION_LEVEL: automated
  48 #
  49 # __stc_assertion_end
  50 #
  51 ################################################################################
  52 
  53 . ${STF_SUITE}/include/nfsgen.kshlib
  54 
  55 readonly FILE=$(whence -p ${0})
  56 readonly NAME=$(basename $0)
  57 readonly DIR=$(dirname $0)
  58 
  59 export _NFS_STF_DEBUG=$_NFS_STF_DEBUG:$NFSGEN_DEBUG
  60 [[ :$NFSGEN_DEBUG: = *:${NAME}:* \
  61         || :${NFSGEN_DEBUG}: = *:all:* ]] && set -x
  62 
  63 # Extract and print assertion information from this source script to journal
  64 extract_assertion_info $FILE
  65 
  66 function assert_cleanup {
  67         [[ :$NFSGEN_DEBUG: = *:${NAME}:* \
  68                 || :${NFSGEN_DEBUG}: = *:all:* ]] && set -x
  69 
  70         cd - && rm -rf $testdir 
  71         cleanup $1
  72 }
  73 
  74 function loop_mv {
  75         [[ :$NFSGEN_DEBUG: = *:${NAME}:* \
  76                 || :${NFSGEN_DEBUG}: = *:all:* ]] && set -x
  77         src=$1
  78         dst=$2
  79 
  80         while true; do
  81                 mv $src $dst > /dev/null 2>&1
  82                 mv $dst $src > /dev/null 2>&1
  83         done
  84 }
  85 
  86 testdir=${MNTDIR}/${NAME}.`hostname`.$$
  87 RUN_CHECK mkdir -p $testdir/1/2/3/4/5 $testdir/a/b/c/d/e \
  88         || assert_cleanup $STF_UNINITIATED
  89 RUN_CHECK cd $testdir || assert_cleanup $STF_UNINITIATED
  90 
  91 #
  92 # Rename directory to generate race condition, we don't care
  93 # if the rename succeeds or fails. The test just verify if
  94 # the system is stable. 
  95 #
  96 loop_mv a/b/c 1/2/3/c &
  97 pid1=$!
  98 loop_mv a/b/c/d/e/1 1 &
  99 pid2=$!
 100 
 101 sleep 30
 102 kill -9 $pid1 $pid2
 103 assert_cleanup $STF_PASS
 104