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 file_sync_after_first=$(mktemp -u)
  50 file_sync_before_last=$(mktemp -u)
  51
  52 diag "Starting $NUM_PROCESS test applications"
  53 for i in `seq 1 $NUM_PROCESS`
  54 do
  55         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT ${file_sync_after_first} ${file_sync_before_last} >/dev/null 2>&1 &
  56         APPS_PID="${APPS_PID} ${!}"
  57 done
  58
  59 diag "Waiting for applications to be registered to sessiond"
  60
  61 reg_app_count=0
  62 while [ $reg_app_count -ne $NUM_PROCESS ]; do
  63         listing=$($TESTDIR/../src/bin/lttng/$LTTNG_BIN list -u)
  64         reg_app_count=$(echo -n $listing | sed "s#$TESTAPP_BIN#$TESTAPP_BIN\n#g" | grep "$TESTAPP_BIN" | wc -l)
  65 done
  66
  67 pass "All applications are registered to sessiond"
  68
  69 TRACE_PATH=$(mktemp -d)
  70
  71 create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  72
  73 enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  74 start_lttng_tracing $SESSION_NAME
  75
  76 touch ${file_sync_before_last}
  77
  78 # We don't validate whether the applications have traced here, rather
  79 # just that they registered to sessiond (above).
  80
  81 stop_lttng_tracing $SESSION_NAME
  82 destroy_lttng_session $SESSION_NAME
  83
  84 #TODO: add trace validation.
  85
  86 rm -rf $TRACE_PATH
  87
  88 diag "Stopping all spawned applications"
  89 for p in ${APPS_PID}; do
  90         kill ${p}
  91         wait ${p} 2>/dev/null
  92 done
  93 APPS_PID=
  94 pass "Stopped all spawned applications"
  95
  96 rm -f ${file_sync_after_first}
  97 rm -f ${file_sync_before_last}
  98
  99 stop_lttng_sessiond