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045880fb BP |
1 | #!/bin/bash |
2 | # Copyright (C) 2009 Benjamin Poirier | |
3 | ||
4 | # This program is free software; you can redistribute it and/or modify | |
5 | # it under the terms of the GNU General Public License as published by | |
6 | # the Free Software Foundation; either version 2 of the License, or | |
7 | # (at your option) any later version. | |
8 | ||
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. | |
13 | ||
14 | # You should have received a copy of the GNU General Public License along | |
15 | # with this program; if not, write to the Free Software Foundation, Inc., | |
16 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | ||
80bb2806 | 18 | DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}') |
19 | MARKERSROOT=${DEBUGFSROOT}/ltt/markers | |
024405bd | 20 | |
045880fb BP |
21 | usage () { |
22 | echo "Usage: $0 [OPTION]..." > /dev/stderr | |
23 | echo "Disconnect lttng markers" > /dev/stderr | |
24 | echo "" > /dev/stderr | |
25 | echo "Options:" > /dev/stderr | |
26 | printf "\t-q Quiet mode, suppress output\n" > /dev/stderr | |
27 | printf "\t-h Print this help\n" > /dev/stderr | |
28 | echo "" > /dev/stderr | |
29 | } | |
30 | ||
31 | if [ ! "$DEBUGFSROOT" ]; then | |
32 | echo "Error: debugfs not mounted" > /dev/stderr | |
33 | exit 1; | |
34 | fi | |
35 | ||
36 | if [ ! -d "$MARKERSROOT" ]; then | |
37 | echo "Error: LTT trace controller not found (did you compile and load LTTng?)" > /dev/stderr | |
38 | exit 1; | |
39 | fi | |
40 | ||
41 | while getopts "qh" options; do | |
42 | case $options in | |
43 | q) QUIET="0";; | |
44 | h) usage; | |
45 | exit 0;; | |
46 | \?) usage; | |
47 | exit 1;; | |
80bb2806 | 48 | esac |
024405bd | 49 | done |
045880fb BP |
50 | shift $(($OPTIND - 1)) |
51 | ||
52 | while read -r -d $'\0' marker; do | |
53 | grep "^1$" "$marker" -q | |
54 | if [ $? -ne 0 ]; then | |
55 | continue | |
56 | fi | |
57 | if [ ! $QUIET ]; then | |
58 | echo "Disconnecting ${marker%/enable}" | |
59 | fi | |
60 | echo 0 > $marker | |
61 | done < <(eval "find '$MARKERSROOT' -name metadata -prune -o -name enable -print0") |