tests/regression/ust/buffers-pid/test_buffers_pid

   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 PID buffers"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 NR_ITER=100
  22 NR_USEC_WAIT=100000
  23 SESSION_NAME="buffers-pid"
  24
  25 TESTAPP_PATH="$TESTDIR/utils/testapp"
  26 TESTAPP_NAME="gen-ust-events"
  27 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  28 EVENT_NAME="tp:tptest"
  29 NUM_TESTS=59
  30
  31 source $TESTDIR/utils/utils.sh
  32
  33 if [ ! -x "$TESTAPP_BIN" ]; then
  34         BAIL_OUT "No UST events binary detected."
  35 fi
  36
  37 # MUST set TESTDIR before calling those functions
  38
  39 function enable_channel_per_pid()
  40 {
  41         sess_name=$1
  42         channel_name=$2
  43
  44         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name >/dev/null 2>&1
  45         ok $? "Enable channel $channel_name per PID for session $sess_name"
  46 }
  47
  48 test_after_multiple_apps() {
  49         local out
  50         local i
  51
  52         diag "Start multiple applications AFTER tracing is started"
  53
  54         # BEFORE application is spawned
  55         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  56         enable_channel_per_pid $SESSION_NAME "channel0"
  57         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  58         start_lttng_tracing_ok $SESSION_NAME
  59
  60         for i in `seq 1 5`; do
  61                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1 &
  62                 ok $? "Start application $i for tracing"
  63         done
  64         wait
  65
  66         stop_lttng_tracing_ok $SESSION_NAME
  67         destroy_lttng_session_ok $SESSION_NAME
  68
  69         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  70
  71         return $?
  72 }
  73
  74 test_before_multiple_apps() {
  75         local out
  76         local i
  77         local file_sync_after_first=$(mktemp -u)
  78         local file_sync_before_last=$(mktemp -u)
  79
  80         diag "Start multiple applications BEFORE tracing is started"
  81
  82         for i in `seq 1 5`; do
  83                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT ${file_sync_after_first}_${i} ${file_sync_before_last}_${i} >/dev/null 2>&1 &
  84                 ok $? "Start application $i for tracing"
  85         done
  86
  87         # BEFORE application is spawned
  88         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  89         enable_channel_per_pid $SESSION_NAME "channel0"
  90         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  91         start_lttng_tracing_ok $SESSION_NAME
  92
  93         for i in `seq 1 5`; do
  94                 touch ${file_sync_before_last}_${i}
  95         done
  96
  97         diag "Waiting for applications to end"
  98         wait
  99         pass "Waiting done"
 100
 101         stop_lttng_tracing_ok $SESSION_NAME
 102         destroy_lttng_session_ok $SESSION_NAME
 103
 104         for i in `seq 1 5`; do
 105                 rm -f ${file_sync_after_first}_${i}
 106                 rm -f ${file_sync_before_last}_${i}
 107         done
 108
 109         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 110         if [ $out -eq 0 ]; then
 111                 fail "Trace validation"
 112                 diag "No event(s) found. We are supposed to have at least one."
 113                 out=1
 114         else
 115                 pass "Trace validation"
 116                 diag "Found $out event(s). Coherent."
 117                 out=0
 118         fi
 119
 120         return $out
 121 }
 122
 123 test_after_app() {
 124         local out
 125
 126         diag "Start application AFTER tracing is started"
 127
 128         # BEFORE application is spawned
 129         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 130         enable_channel_per_pid $SESSION_NAME "channel0"
 131         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
 132         start_lttng_tracing_ok $SESSION_NAME
 133
 134         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 135         ok $? "Start application to trace"
 136         wait
 137
 138         stop_lttng_tracing_ok $SESSION_NAME
 139         destroy_lttng_session_ok $SESSION_NAME
 140
 141         trace_match_only $EVENT_NAME $NR_ITER $TRACE_PATH
 142
 143         return $?
 144 }
 145
 146 test_before_app() {
 147         local out
 148         local file_sync_after_first=$(mktemp -u)
 149         local file_sync_before_last=$(mktemp -u)
 150
 151         diag "Start application BEFORE tracing is started"
 152
 153
 154         # BEFORE application is spawned
 155         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 156         enable_channel_per_pid $SESSION_NAME "channel0"
 157         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
 158
 159         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT ${file_sync_after_first} ${file_sync_before_last} &
 160         ok $? "Start application to trace"
 161
 162         start_lttng_tracing_ok $SESSION_NAME
 163
 164         touch ${file_sync_before_last}
 165
 166         wait
 167
 168         stop_lttng_tracing_ok $SESSION_NAME
 169         destroy_lttng_session_ok $SESSION_NAME
 170
 171         rm -f ${file_sync_after_first}
 172         rm -f ${file_sync_before_last}
 173
 174         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 175         if [ $out -eq 0 ]; then
 176                 fail "Trace validation"
 177                 diag "No event(s) found. We are supposed to have at least one."
 178                 out=1
 179         else
 180                 pass "Trace validation"
 181                 diag "Found $out event(s). Coherent."
 182                 out=0
 183         fi
 184
 185         return $out
 186 }
 187
 188 test_multiple_channels() {
 189         local out
 190
 191         diag "Start with multiple channels"
 192
 193         # BEFORE application is spawned
 194         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 195         enable_channel_per_pid $SESSION_NAME "channel0"
 196         enable_channel_per_pid $SESSION_NAME "channel1"
 197         enable_channel_per_pid $SESSION_NAME "channel2"
 198         enable_channel_per_pid $SESSION_NAME "channel3"
 199         enable_channel_per_pid $SESSION_NAME "channel4"
 200         # Enable event in all channels.
 201         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 202         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 203         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 204         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 205         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 206         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 207         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 208         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 209         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 210         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 211         start_lttng_tracing_ok $SESSION_NAME
 212
 213         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 214         ok $? "Start application to trace"
 215         wait
 216
 217         stop_lttng_tracing_ok $SESSION_NAME
 218         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 219         out=$?
 220
 221         destroy_lttng_session_ok $SESSION_NAME
 222
 223         return $out
 224 }
 225
 226 # MUST set TESTDIR before calling those functions
 227 plan_tests $NUM_TESTS
 228
 229 print_test_banner "$TEST_DESC"
 230
 231 TESTS=(
 232         "test_before_app"
 233         "test_after_app"
 234         "test_after_multiple_apps"
 235         "test_before_multiple_apps"
 236         "test_multiple_channels"
 237 )
 238
 239 TEST_COUNT=${#TESTS[@]}
 240 i=0
 241
 242 start_lttng_sessiond
 243
 244 while [ $i -lt $TEST_COUNT ]; do
 245         TRACE_PATH=$(mktemp -d)
 246         ${TESTS[$i]}
 247         rm -rf $TRACE_PATH
 248         let "i++"
 249 done
 250
 251 stop_lttng_sessiond