tests/regression/ust/nprocesses/test_nprocesses

   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 NUM_PROCESS=30
  18 TEST_DESC="UST tracer - Generate $NUM_PROCESS process"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/../../..
  22 NR_ITER=-1      # infinite loop
  23 NR_USEC_WAIT=1000000
  24 TESTAPP_PATH="$TESTDIR/utils/testapp"
  25 TESTAPP_NAME="gen-ust-events"
  26 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  27 SESSION_NAME="ust-nprocesses"
  28 EVENT_NAME="tp:tptest"
  29 TEST_WAIT_SEC=5
  30 NUM_TESTS=9
  31 APPS_PID=
  32
  33 source $TESTDIR/utils/utils.sh
  34
  35 if [ ! -x "$TESTAPP_BIN" ]; then
  36         BAIL_OUT "No UST $TESTAPP_BIN binary detected."
  37 fi
  38
  39 # MUST set TESTDIR before calling those functions
  40
  41 plan_tests $NUM_TESTS
  42
  43 print_test_banner "$TEST_DESC"
  44
  45 start_lttng_sessiond
  46
  47 # Start tests. Each is an infinite tracing loop.
  48
  49 diag "Starting $NUM_PROCESS test applications"
  50 for i in `seq 1 $NUM_PROCESS`
  51 do
  52         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1 &
  53         APPS_PID="${APPS_PID} ${!}"
  54 done
  55
  56 #FIXME: racy missing synchronization
  57
  58 diag "Waiting for applications to be registered to sessiond"
  59
  60 reg_app_count=0
  61 while [ $reg_app_count -ne $NUM_PROCESS ]; do
  62         listing=$($TESTDIR/../src/bin/lttng/$LTTNG_BIN list -u)
  63         reg_app_count=$(echo -n $listing | sed "s#$TESTAPP_BIN#$TESTAPP_BIN\n#g" | grep "$TESTAPP_BIN" | wc -l)
  64 done
  65
  66 pass "All applications are registered to sessiond"
  67
  68 TRACE_PATH=$(mktemp -d)
  69
  70 create_lttng_session $SESSION_NAME $TRACE_PATH
  71
  72 enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  73 start_lttng_tracing $SESSION_NAME
  74
  75 # We don't validate whether the applications have traced here, rather
  76 # just that they registered to sessiond (above).
  77
  78 stop_lttng_tracing $SESSION_NAME
  79 destroy_lttng_session $SESSION_NAME
  80
  81 #FIXME/TODO: add validation after fixing racy synchroniaation
  82
  83 rm -rf $TRACE_PATH
  84
  85 diag "Stopping all spawned applications"
  86 for p in ${APPS_PID}; do
  87         kill ${p}
  88         wait ${p} 2>/dev/null
  89 done
  90 APPS_PID=
  91 pass "Stopped all spawned applications"
  92
  93 stop_lttng_sessiond