leaks.sh revision 3f54fd611f536639ec30dd53c48e5ec1897cc7d9
########################################################################
# #
# This software is part of the ast package #
# Copyright (c) 1982-2012 AT&T Intellectual Property #
# and is licensed under the #
# Eclipse Public License, Version 1.0 #
# by AT&T Intellectual Property #
# #
# A copy of the License is available at #
# http://www.eclipse.org/org/documents/epl-v10.html #
# (with md5 checksum b35adb5213ca9657e911e9befb180842) #
# #
# Information and Software Systems Research #
# AT&T Research #
# Florham Park NJ #
# #
# David Korn <dgk@research.att.com> #
# #
########################################################################
builtin vmstate 2>/dev/null || exit 0
function err_exit
{
print -u2 -n "\t"
print -u2 -r ${Command}[$1]: "${@:2}"
let Errors+=1
}
alias err_exit='err_exit $LINENO'
Command=${0##*/}
integer Errors=0
# test for variable reset leak #
function test_reset
{
integer i n=$1
for ((i = 0; i < n; i++))
do u=$i
done
}
n=1000
# one round to get to steady state -- sensitive to -x
test_reset $n
a=0$(vmstate --format='+%(size)u')
b=0$(vmstate --format='+%(size)u')
test_reset $n
a=0$(vmstate --format='+%(size)u')
test_reset $n
b=0$(vmstate --format='+%(size)u')
if (( b > a ))
then err_exit "variable value reset memory leak -- $((b-a)) bytes after $n iterations"
fi
# buffer boundary tests
for exp in 65535 65536
do got=$($SHELL -c 'x=$(printf "%.*c" '$exp' x); print ${#x}' 2>&1)
[[ $got == $exp ]] || err_exit "large command substitution failed -- expected $exp, got $got"
done
data="(v=;sid=;di=;hi=;ti='1328244300';lv='o';id='172.3.161.178';var=(k='conn_num._total';u=;fr=;l='Number of Connections';n='22';t='number';))"
read -C stat <<< "$data"
a=0$(vmstate --format='+%(size)u')
for ((i=0; i < 500; i++))
do print -r -- "$data"
done | while read -u$n -C stat
do :
done {n}<&0-
b=0$(vmstate --format='+%(size)u')
(( b > a )) && err_exit 'memory leak with read -C when deleting compound variable'
read -C stat <<< "$data"
a=0$(vmstate --format='+%(size)u')
for ((i=0; i < 500; i++))
do read -C stat <<< "$data"
done
b=0$(vmstate --format='+%(size)u')
(( b > a )) && err_exit 'memory leak with read -C when using <<<'
exit $((Errors<125?Errors:125))