Test: kernel testing for notification
[lttng-tools.git] / tests / regression / tools / notification / test_notification_kernel
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JR
1#!/bin/bash
2#
3# Copyright (C) - 2017 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
4#
5# This library is free software; you can redistribute it and/or modify it under
6# the terms of the GNU Lesser General Public License as published by the Free
7# Software Foundation; version 2.1 of the License.
8#
9# This library is distributed in the hope that it will be useful, but WITHOUT
10# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12# details.
13#
14# You should have received a copy of the GNU Lesser General Public License
15# along with this library; if not, write to the Free Software Foundation, Inc.,
16# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
18CURDIR=$(dirname $0)/
19TESTDIR=$CURDIR/../../../
20
21#This is needed since the testpoint create a pipe with the consumerd type suffixed
22TESTPOINT_BASE_PATH=$(readlink -f "$CURDIR/lttng.t_p_n")
23TESTPOINT_PIPE_PATH=$(mktemp -u "${TESTPOINT_BASE_PATH}.XXXXXX")
24TESTPOIT_ARGS="CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} LTTNG_TESTPOINT_ENABLE=1"
25TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)
26
27
28TESTAPP_PATH="$TESTDIR/utils/testapp"
29TESTAPP_NAME="gen-ust-events"
30TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
31TESTAPP_STATE_PATH=$(mktemp -u "$CURDIR/application_state.XXXXXXXXXX")
32
33NR_ITER=-1
34NR_USEC_WAIT=5
35
36SESSION_NAME="my_session"
37CHANNEL_NAME="my_channel"
38
39TRACE_PATH=$(mktemp -d)
40PAGE_SIZE=$(getconf PAGE_SIZE)
41
42DIR=$(readlink -f $TESTDIR)
43NUM_TESTS=104
44
45source $TESTDIR/utils/utils.sh
46
47function kernel_event_generator_toogle_state
48{
49 kernel_event_generator_suspended=$((kernel_event_generator_suspended==0))
50
51}
52function kernel_event_generator
53{
54 state_file=$1
55 kernel_event_generator_suspended=0
56 trap kernel_event_generator_toogle_state SIGUSR1
57 trap "exit" SIGTERM SIGINT EXIT
58 while (true); do
59 if [[ $kernel_event_generator_suspended -eq "1" ]]; then
60 touch $state_file
61 sleep 0.5
62 else
63 if [[ -f $state_file ]]; then
64 rm $state_file 2> /dev/null
65 fi
66 echo -n "1000" > /proc/lttng-test-filter-event 2> /dev/null
67 fi
68 done
69}
70
71function kernel_test
72{
73 local consumerd_pipe=()
74 local event_name="lttng_test_filter_event"
75
76 modprobe lttng-test
77
78 LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} LD_PRELOAD=${TESTPOINT}"
79 start_lttng_sessiond_notap
80
81 create_lttng_session_notap $SESSION_NAME $TRACE_PATH
82
83 lttng_enable_kernel_channel_notap $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
84 enable_kernel_lttng_event_notap $SESSION_NAME $event_name $CHANNEL_NAME
85
86 #This is needed since the testpoint create a pipe with the consumer type suffixed
87 for f in "$TESTPOINT_BASE_PATH"*; do
88 consumerd_pipe+=("$f")
89 done
90
91 kernel_event_generator $TESTAPP_STATE_PATH &
92 APP_PID=$!
93
94 $CURDIR/notification LTTNG_DOMAIN_KERNEL $SESSION_NAME $CHANNEL_NAME $APP_PID $TESTAPP_STATE_PATH ${consumerd_pipe[@]}
95
96 destroy_lttng_session_notap $SESSION_NAME
97 stop_lttng_sessiond_notap
98
99 kill -9 $APP_PID
100 wait $APP_PID 2> /dev/null
101
102
103 rmmod lttng-test
104
105 rm ${consumerd_pipe[@]} 2> /dev/null
106}
107
108if [ "$(id -u)" == "0" ]; then
109 kernel_test
110else
111 # Kernel tests are skipped.
112 plan_tests $NUM_TESTS
113 skip 0 "Root access is needed. Skipping all kernel notification tests." $NUM_TESTS
114fi
115
116# Just in case cleanup
117rm -rf $TRACE_PATH
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