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#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26
27. ${STF_SUITE}/include/libtest.kshlib
28
29###############################################################################
30#
31# __stc_assertion_start
32#
33# ID: threadsappend_001_pos
34#
35# DESCRIPTION:
36#
37# Ensure multiple threads performing write appends to the same ZFS
38# file succeed.
39#
40# STRATEGY:
41#	1) Verify this is a multi-processor system
42#	2) Create multiple threads with each appending to a file
43#       3) Verify that the resulting file is the expected size
44#
45# TESTABILITY: explicit
46#
47# TEST_AUTOMATION_LEVEL: automated
48#
49# CODING_STATUS: COMPLETED (2005-07-04)
50#
51# __stc_assertion_end
52#
53###############################################################################
54
55verify_runnable "both"
56
57log_assert "Ensure multiple threads performing write appends to the same" \
58	"ZFS file succeed"
59
60#
61# $FILE_SIZE is hardcoded into threadsappend.c and is the expected
62# size of the file after all the threads have appended to it
63#
64typeset -i FILE_SIZE=1310720
65
66#
67# This test should be run on a multi-processor system because otherwise the FS
68# will not be concurrently used by the threads
69#
70NCPUS=`sysctl -a | awk -F '"' '/cpu count="[0-9+]"/ {print $2; exit}'`
71if [[ $? -ne 0 || -z $NCPUS || $NCPUS -le 1 ]]; then
72	 log_unsupported \
73	 	"This test should be executed on a multi-processor system."
74fi
75
76#
77# zfs_threadsappend tries to append to $TESTFILE using threads
78# so that the resulting file is $FILE_SIZE bytes in size
79#
80log_must threadsappend ${TESTDIR}/${TESTFILE}
81
82#
83# Check the size of the resulting file
84#
85SIZE=`$LS -l ${TESTDIR}/${TESTFILE} | $AWK '{print $5}'`
86if [[ $SIZE -ne $FILE_SIZE ]]; then
87	log_fail "'The length of ${TESTDIR}/${TESTFILE}' doesnt equal 1310720."
88fi
89
90log_pass "Multiple thread appends succeeded. File size as expected"
91