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