tests/regression/tools/notification/test_notification_kernel

   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
  18 CURDIR=$(dirname $0)/
  19 TESTDIR=$CURDIR/../../../
  20
  21 #This is needed since the testpoint create a pipe with the consumerd type suffixed
  22 TESTPOINT_BASE_PATH=$(readlink -f "$CURDIR/lttng.t_p_n")
  23 TESTPOINT_PIPE_PATH=$(mktemp -u "${TESTPOINT_BASE_PATH}.XXXXXX")
  24 TESTPOIT_ARGS="CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} LTTNG_TESTPOINT_ENABLE=1"
  25 TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)
  26
  27
  28 TESTAPP_PATH="$TESTDIR/utils/testapp"
  29 TESTAPP_NAME="gen-ust-events"
  30 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  31 TESTAPP_STATE_PATH=$(mktemp -u "$CURDIR/application_state.XXXXXXXXXX")
  32
  33 NR_ITER=-1
  34 NR_USEC_WAIT=5
  35
  36 SESSION_NAME="my_session"
  37 CHANNEL_NAME="my_channel"
  38
  39 TRACE_PATH=$(mktemp -d)
  40 PAGE_SIZE=$(getconf PAGE_SIZE)
  41
  42 DIR=$(readlink -f $TESTDIR)
  43 NUM_TESTS=104
  44
  45 source $TESTDIR/utils/utils.sh
  46
  47 function kernel_event_generator_toogle_state
  48 {
  49         kernel_event_generator_suspended=$((kernel_event_generator_suspended==0))
  50
  51 }
  52 function 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 $state_file 2> /dev/null
  65                         fi
  66                         echo -n "1000" > /proc/lttng-test-filter-event 2> /dev/null
  67                 fi
  68         done
  69 }
  70
  71 function kernel_test
  72 {
  73         local consumerd_pipe=()
  74         local event_name="lttng_test_filter_event"
  75
  76         modprobe lttng-test
  77
  78         LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${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 ${consumerd_pipe[@]} 2> /dev/null
 106 }
 107
 108 if [ "$(id -u)" == "0" ]; then
 109         kernel_test
 110 else
 111         # Kernel tests are skipped.
 112         plan_tests $NUM_TESTS
 113         skip 0 "Root access is needed. Skipping all kernel notification tests." $NUM_TESTS
 114 fi
 115
 116 # Just in case cleanup
 117 rm -rf $TRACE_PATH