tests/regression/ust/buffers-uid/test_buffers_uid

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 David Goulet <dgoulet@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 TEST_DESC="UST tracer - Tracing with per UID buffers"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 NR_ITER=100
  22 SESSION_NAME="buffers-uid"
  23 EVENT_NAME="ust_gen_nevents:tptest"
  24 BIN_NAME="gen-nevents"
  25 NUM_TESTS=58
  26
  27 source $TESTDIR/utils/utils.sh
  28
  29 print_test_banner "$TEST_DESC"
  30
  31 if [ ! -x "$CURDIR/gen-nevents" ]; then
  32         BAIL_OUT "No UST nevents binary detected."
  33 fi
  34
  35 # MUST set TESTDIR before calling those functions
  36
  37 function enable_channel_per_uid()
  38 {
  39         sess_name=$1
  40         channel_name=$2
  41
  42         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name >/dev/null 2>&1
  43         ok $? "Enable channel $channel_name per UID for session $sess_name"
  44 }
  45
  46 function wait_apps
  47 {
  48         diag "Waiting for applications to end..."
  49         while [ -n "$(pidof $BIN_NAME)" ]; do
  50                 sleep 1
  51         done
  52 }
  53
  54 test_after_multiple_apps() {
  55         local out
  56         local i
  57
  58         diag "Start multiple applications AFTER tracing is started"
  59
  60         # BEFORE application is spawned
  61         create_lttng_session $SESSION_NAME $TRACE_PATH
  62         enable_channel_per_uid $SESSION_NAME "channel0"
  63         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  64         start_lttng_tracing $SESSION_NAME
  65
  66         for i in `seq 1 5`; do
  67                 ./$CURDIR/$BIN_NAME $NR_ITER & >/dev/null 2>&1
  68                 ok $? "Start application $i for tracing"
  69         done
  70         wait_apps
  71
  72         stop_lttng_tracing $SESSION_NAME
  73         destroy_lttng_session $SESSION_NAME
  74
  75         trace_matches $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  76
  77         return $?
  78 }
  79
  80 test_before_multiple_apps() {
  81         local out
  82         local i
  83
  84         diag "Start multiple applications BEFORE tracing is started"
  85
  86         for i in `seq 1 5`; do
  87                 ./$CURDIR/$BIN_NAME $NR_ITER & >/dev/null 2>&1
  88                 ok $? "Start application $i for tracing"
  89         done
  90
  91         # BEFORE application is spawned
  92         create_lttng_session $SESSION_NAME $TRACE_PATH
  93         enable_channel_per_uid $SESSION_NAME "channel0"
  94         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  95         start_lttng_tracing $SESSION_NAME
  96
  97         # At least hit one event
  98         sleep 2
  99
 100         stop_lttng_tracing $SESSION_NAME
 101         destroy_lttng_session $SESSION_NAME
 102
 103         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 104         if [ $out -eq 0 ]; then
 105                 fail "Trace validation"
 106                 diag "No event(s) found. We are supposed to have at least one."
 107                 out=1
 108         else
 109                 pass "Trace validation"
 110                 diag "Found $out event(s). Coherent."
 111                 out=0
 112         fi
 113
 114         wait_apps
 115
 116         return $out
 117 }
 118
 119 test_after_app() {
 120         local out
 121
 122         diag "Start application AFTER tracing is started"
 123
 124         # BEFORE application is spawned
 125         create_lttng_session $SESSION_NAME $TRACE_PATH
 126         enable_channel_per_uid $SESSION_NAME "channel0"
 127         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 128         start_lttng_tracing $SESSION_NAME
 129
 130         ./$CURDIR/$BIN_NAME $NR_ITER
 131         ok $? "Start application to trace"
 132
 133         stop_lttng_tracing $SESSION_NAME
 134         destroy_lttng_session $SESSION_NAME
 135
 136         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
 137
 138         return $?
 139 }
 140
 141 test_before_app() {
 142         local out
 143
 144         diag "Start application BEFORE tracing is started"
 145
 146         ./$CURDIR/$BIN_NAME $NR_ITER &
 147         ok $? "Start application to trace"
 148
 149         # BEFORE application is spawned
 150         create_lttng_session $SESSION_NAME $TRACE_PATH
 151         enable_channel_per_uid $SESSION_NAME "channel0"
 152         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 153         start_lttng_tracing $SESSION_NAME
 154
 155         # At least hit one event
 156         sleep 2
 157
 158         stop_lttng_tracing $SESSION_NAME
 159         destroy_lttng_session $SESSION_NAME
 160
 161         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 162         if [ $out -eq 0 ]; then
 163                 fail "Trace validation"
 164                 diag "No event(s) found. We are supposed to have at least one."
 165                 out=1
 166         else
 167                 pass "Trace validation"
 168                 diag "Found $out event(s). Coherent."
 169                 out=0
 170         fi
 171
 172         wait_apps
 173
 174         return $out
 175 }
 176
 177 test_multiple_channels() {
 178         local out
 179
 180         diag "Start with multiple channels"
 181
 182         # BEFORE application is spawned
 183         create_lttng_session $SESSION_NAME $TRACE_PATH
 184         enable_channel_per_uid $SESSION_NAME "channel0"
 185         enable_channel_per_uid $SESSION_NAME "channel1"
 186         enable_channel_per_uid $SESSION_NAME "channel2"
 187         enable_channel_per_uid $SESSION_NAME "channel3"
 188         enable_channel_per_uid $SESSION_NAME "channel4"
 189         # Enable event in all channels.
 190         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 191         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 192         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 193         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 194         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 195         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 196         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 197         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 198         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 199         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 200         start_lttng_tracing $SESSION_NAME
 201
 202         ./$CURDIR/$BIN_NAME $NR_ITER
 203         ok $? "Start application to trace"
 204
 205         stop_lttng_tracing $SESSION_NAME
 206         trace_matches $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 207         out=$?
 208
 209         destroy_lttng_session $SESSION_NAME
 210
 211         return $out
 212 }
 213
 214 # MUST set TESTDIR before calling those functions
 215 plan_tests $NUM_TESTS
 216
 217 TESTS=(
 218         "test_before_app"
 219         "test_after_app"
 220         "test_after_multiple_apps"
 221         "test_before_multiple_apps"
 222         "test_multiple_channels"
 223 )
 224
 225 TEST_COUNT=${#TESTS[@]}
 226 i=0
 227
 228 start_lttng_sessiond
 229
 230 while [ $i -lt $TEST_COUNT ]; do
 231         TRACE_PATH=$(mktemp -d)
 232         ${TESTS[$i]}
 233         if [ $? -ne 0 ]; then
 234                 stop_lttng_sessiond
 235                 exit 1
 236         fi
 237
 238         rm -rf $TRACE_PATH
 239         let "i++"
 240 done
 241
 242 stop_lttng_sessiond