1#!/usr/local/bin/ksh93 -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# $FreeBSD$ 24 25# 26# Copyright 2007 Sun Microsystems, Inc. All rights reserved. 27# Use is subject to license terms. 28# 29# ident "@(#)mmap_write_001_pos.ksh 1.3 07/07/31 SMI" 30# 31. $STF_SUITE/include/libtest.kshlib 32 33# ########################################################################## 34# 35# __stc_assertion_start 36# 37# ID: mmap_write_001_pos 38# 39# DESCRIPTION: 40# Writing to a file and mmaping that file at the 41# same time does not result in a deadlock. 42# 43# STRATEGY: 44# 1. Make sure this test executes on multi-processes system. 45# 2. Call mmapwrite binary. 46# 3. wait 120s and make sure the test file existed. 47# 48# TESTABILITY: explicit 49# 50# TEST_AUTOMATION_LEVEL: automated 51# 52# CODING_STATUS: COMPLETED (2005-07-04) 53# 54# __stc_assertion_end 55# 56################################################################################ 57 58verify_runnable "both" 59 60# Default is 120 seconds or 2 minutes 61WAITTIME=${WAITTIME-120} 62 63log_assert "write()s to a file and mmap() that file at the same time does not "\ 64 "result in a deadlock." 65 66# Detect and make sure this test must be executed on a multi-process system 67NCPUS=`sysctl -a | awk -F '"' '/cpu count="[0-9+]"/ {print $2; exit}'` 68if [[ $? -ne 0 || -z $NCPUS || $NCPUS -le 1 ]]; then 69 log_unsupported "This test must be executed on a multi-processor system." 70fi 71 72log_must $CHMOD 777 $TESTDIR 73$MMAPWRITE $TESTDIR/$TESTFILE & 74PID_MMAPWRITE=$! 75log_note "$MMAPWRITE $TESTDIR/$TESTFILE pid: $PID_MMAPWRITE" 76log_must $SLEEP 10 77 78typeset -i i=0 79while (( i < $WAITTIME )); do 80 if ! $PS -ef | $PGREP $MMAPWRITE > /dev/null ; then 81 log_must $WAIT $PID_MMAPWRITE 82 break 83 fi 84 $SLEEP 1 85 (( i += 1 )) 86done 87 88if $PS -ef | $PGREP $MMAPWRITE > /dev/null ; then 89 log_must $KILL -9 $PID_MMAPWRITE 90fi 91log_must $LS -l $TESTDIR/$TESTFILE 92 93log_pass "write(2) a mmap(2)'ing file succeeded." 94