1#!/bin/sh
2# description: Test creation and deletion of trace instances
3
4if [ ! -d instances ] ; then
5    echo "no instance directory with this kernel"
6    exit_unsupported;
7fi
8
9fail() { # mesg
10    rmdir x y z 2>/dev/null
11    echo $1
12    set -e
13    exit $FAIL
14}
15
16cd instances
17
18# we don't want to fail on error
19set +e
20
21mkdir x
22rmdir x
23result=$?
24
25if [ $result -ne 0 ]; then
26    echo "instance rmdir not supported"
27    exit_unsupported
28fi
29
30instance_slam() {
31    while :; do
32	mkdir x
33	mkdir y
34	mkdir z
35	rmdir x
36	rmdir y
37	rmdir z
38    done 2>/dev/null
39}
40
41instance_slam &
42p1=$!
43echo $p1
44
45instance_slam &
46p2=$!
47echo $p2
48
49instance_slam &
50p3=$!
51echo $p3
52
53instance_slam &
54p4=$!
55echo $p4
56
57instance_slam &
58p5=$!
59echo $p5
60
61ls -lR >/dev/null
62sleep 1
63
64kill -1 $p1
65kill -1 $p2
66kill -1 $p3
67kill -1 $p4
68kill -1 $p5
69
70echo "Wait for processes to finish"
71wait $p1 $p2 $p3 $p4 $p5
72echo "all processes finished, wait for cleanup"
73
74mkdir x y z
75ls x y z
76rmdir x y z
77for d in x y z; do
78        if [ -d $d ]; then
79                fail "instance $d still exists"
80        fi
81done
82
83set -e
84
85exit 0
86