1########################################################################
2#                                                                      #
3#               This software is part of the ast package               #
4#          Copyright (c) 1982-2012 AT&T Intellectual Property          #
5#                      and is licensed under the                       #
6#                 Eclipse Public License, Version 1.0                  #
7#                    by AT&T Intellectual Property                     #
8#                                                                      #
9#                A copy of the License is available at                 #
10#          http://www.eclipse.org/org/documents/epl-v10.html           #
11#         (with md5 checksum b35adb5213ca9657e911e9befb180842)         #
12#                                                                      #
13#              Information and Software Systems Research               #
14#                            AT&T Research                             #
15#                           Florham Park NJ                            #
16#                                                                      #
17#                  David Korn <dgk@research.att.com>                   #
18#                                                                      #
19########################################################################
20builtin vmstate 2>/dev/null || exit 0
21
22function err_exit
23{
24	print -u2 -n "\t"
25	print -u2 -r ${Command}[$1]: "${@:2}"
26	let Errors+=1
27}
28alias err_exit='err_exit $LINENO'
29
30Command=${0##*/}
31integer Errors=0
32
33# test for variable reset leak #
34
35function test_reset
36{
37	integer i n=$1
38
39	for ((i = 0; i < n; i++))
40	do	u=$i
41	done
42}
43
44n=1000
45
46# one round to get to steady state -- sensitive to -x
47
48test_reset $n
49a=0$(vmstate --format='+%(size)u')
50b=0$(vmstate --format='+%(size)u')
51
52test_reset $n
53a=0$(vmstate --format='+%(size)u')
54test_reset $n
55b=0$(vmstate --format='+%(size)u')
56
57if	(( b > a ))
58then	err_exit "variable value reset memory leak -- $((b-a)) bytes after $n iterations"
59fi
60
61# buffer boundary tests
62
63for exp in 65535 65536
64do	got=$($SHELL -c 'x=$(printf "%.*c" '$exp' x); print ${#x}' 2>&1)
65	[[ $got == $exp ]] || err_exit "large command substitution failed -- expected $exp, got $got"
66done
67
68data="(v=;sid=;di=;hi=;ti='1328244300';lv='o';id='172.3.161.178';var=(k='conn_num._total';u=;fr=;l='Number of Connections';n='22';t='number';))"
69read -C stat <<< "$data"
70a=0$(vmstate --format='+%(size)u')
71for ((i=0; i < 500; i++))
72do	print -r -- "$data"
73done |	while read -u$n -C stat
74	do	:
75	done	{n}<&0-
76b=0$(vmstate --format='+%(size)u')
77(( b > a )) && err_exit 'memory leak with read -C when deleting compound variable'
78
79read -C stat <<< "$data"
80a=0$(vmstate --format='+%(size)u')
81for ((i=0; i < 500; i++))
82do      read -C stat <<< "$data"
83done
84b=0$(vmstate --format='+%(size)u')
85(( b > a )) && err_exit 'memory leak with read -C when using <<<'
86
87exit $((Errors<125?Errors:125))
88