1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
#!/bin/bash
#
# Copyright (C) 2021 Masatake YAMATO <yamato@redhat.com>
#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="pipe, no fork"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_LSFD"
ts_check_test_command "$TS_HELPER_MKFDS"
ts_check_prog "stat"
ts_check_prog "readlink"
ts_cd "$TS_OUTDIR"
pipe_name()
{
readlink /proc/$1/fd/$2
}
pipe_inode()
{
stat -L -c %i /proc/$1/fd/$2
}
PID=
FD0=3
FD1=4
EXPR=
{
coproc MKFDS { "$TS_HELPER_MKFDS" pipe-no-fork $FD0 $FD1 nonblock=-w rdup=$((FD0 + 2)) wdup=$((FD1 + 2)); }
if read -u ${MKFDS[0]} PID; then
EXPR='(PID == '"${PID}"') and ((FD == '"$FD0"') or (FD =='"$FD1"'))'
${TS_CMD_LSFD} -n -o ASSOC,MODE,TYPE,SOURCE,FLAGS -Q "${EXPR}"
echo 'ASSOC,MODE,TYPE,SOURCE,FLAGS': $?
LSFD_PIDS=$(${TS_CMD_LSFD} --raw -n -o PID -Q "${EXPR}")
echo 'PID[RUN]:' $?
[ "${LSFD_PIDS}" == "$(printf '%d\n%d' ${PID} ${PID})" ]
echo 'PID[STR]:' $?
LSFD_NAMES=$(${TS_CMD_LSFD} --raw -n -o NAME -Q "${EXPR}")
echo 'NAMES[RUN]:' $?
[ "${LSFD_NAMES}" == "$(printf '%s\n%s' $(pipe_name $PID $FD0) $(pipe_name $PID $FD1))" ]
echo 'NAMES[STR]:' $?
LSFD_INODES=$(${TS_CMD_LSFD} --raw -n -o INODE -Q "${EXPR}")
echo 'INODES[RUN]:' $?
[ "${LSFD_INODES}" == "$(printf '%d\n%d' $(pipe_inode $PID $FD0) $(pipe_inode $PID $FD1))" ]
echo 'INODES[STR]:' $?
LSFD_ENDPOINTS=$(${TS_CMD_LSFD} --raw -n -o ASSOC,ENDPOINTS -Q "${EXPR}")
echo 'ENDPOINTS[RUN]:' $?
mkfds=${TS_HELPER_MKFDS##*/}
line0=$(printf '%d ' $FD0)
line0+=$(printf '%d,%s,%d%c%c' $PID $mkfds $FD1 - w)
line0+='\x0a'
line0+=$(printf '%d,%s,%d%c%c' $PID $mkfds $((FD0 + 2)) r -)
line0+='\x0a'
line0+=$(printf '%d,%s,%d%c%c' $PID $mkfds $((FD1 + 2)) - w)
line1=$(printf '%d ' $FD1)
line1+=$(printf '%d,%s,%d%c%c' $PID $mkfds $FD0 r -)
line1+='\x0a'
line1+=$(printf '%d,%s,%d%c%c' $PID $mkfds $((FD0 + 2)) r -)
line1+='\x0a'
line1+=$(printf '%d,%s,%d%c%c' $PID $mkfds $((FD1 + 2)) - w)
expected=$(printf '%s\n%s' "${line0}" "${line1}")
if [ "${LSFD_ENDPOINTS}" == "${expected}" ]; then
echo 'ENDPOINTS[STR]:' $?
else
echo "lsfd output:"
echo "${LSFD_ENDPOINTS}"
echo "expectation:"
echo "${expected}"
fi
EXPR='(PID == '"${PID}"') and (FD == '"$FD0"')'
LSFD_ENDPOINTS_JSON=$(${TS_CMD_LSFD} -J --raw -n -o ASSOC,ENDPOINTS -Q "${EXPR}")
echo 'ASSOC,ENDPOINTS (JSON)': $?
EXPECTED_LSFD_ENDPOINTS_JSON=$(cat<<EOF
{
"lsfd": [
{
"assoc": "$FD0",
"endpoints": [
"$PID,test_mkfds,${FD1}-w", "$PID,test_mkfds,$((FD0 + 2))r-", "$PID,test_mkfds,$((FD1 + 2))-w"
]
}
]
}
EOF
)
if [[ "$EXPECTED_LSFD_ENDPOINTS_JSON" == "${LSFD_ENDPOINTS_JSON}" ]]; then
echo EXPECTED_LSFD_ENDPOINTS_JSON == LSFD_ENDPOINTS_JSON
else
echo LSFD_ENDPOINTS_JSON: "${LSFD_ENDPOINTS_JSON}"
echo EXPECTED_LSFD_ENDPOINTS_JSON: "${EXPECTED_LSFD_ENDPOINTS_JSON}"
fi
kill -CONT ${PID}
fi
wait ${MKFDS_PID}
} > $TS_OUTPUT 2>&1
ts_finalize
|
