tests/regression/ust/before-after/test_before_after

   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 - Start tracing before and after execution"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 NR_ITER=100
  22 NR_USEC_WAIT=100000
  23 TESTAPP_PATH="$TESTDIR/utils/testapp"
  24 TESTAPP_NAME="gen-ust-events"
  25 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  26 SESSION_NAME="per-session"
  27 EVENT_NAME="tp:tptest"
  28 NUM_TESTS=17
  29
  30 source $TESTDIR/utils/utils.sh
  31
  32 if [ ! -x "$TESTAPP_BIN" ]; then
  33         BAIL_OUT "No UST nevents binary detected."
  34 fi
  35
  36 # MUST set TESTDIR before calling those functions
  37
  38 function wait_app()
  39 {
  40         while [ -n "$(pidof $TESTAPP_NAME)" ]; do
  41                 sleep 0.5
  42         done
  43         pass "Application $TESTAPP_NAME ended."
  44 }
  45
  46 function test_before_apps()
  47 {
  48         # BEFORE application is spawned
  49         create_lttng_session $SESSION_NAME $TRACE_PATH
  50         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  51         start_lttng_tracing $SESSION_NAME
  52
  53         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
  54         ok $? "Traced application stopped."
  55
  56         stop_lttng_tracing $SESSION_NAME
  57         destroy_lttng_session $SESSION_NAME
  58
  59         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
  60
  61         return $?
  62 }
  63
  64 function test_after_apps()
  65 {
  66         local out
  67
  68         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
  69         ok $? "Application started in background."
  70
  71         # BEFORE application is spawned
  72         create_lttng_session $SESSION_NAME $TRACE_PATH
  73         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  74         start_lttng_tracing $SESSION_NAME
  75
  76         # Since the start is done after the application is started, there is a
  77         # bootstrap time needed between the session daemon and the UST tracer.
  78         # Waiting for the application to end tells us when to stop everything and
  79         # validate that at least one event is seen.
  80         wait_app
  81
  82         stop_lttng_tracing $SESSION_NAME
  83         destroy_lttng_session $SESSION_NAME
  84
  85         validate_trace $EVENT_NAME $TRACE_PATH
  86         out=$?
  87
  88         return $out
  89 }
  90
  91 # MUST set TESTDIR before calling those functions
  92 plan_tests $NUM_TESTS
  93
  94 print_test_banner "$TEST_DESC"
  95
  96 start_lttng_sessiond
  97
  98 diag "Start tracing BEFORE application is started"
  99
 100 TRACE_PATH=$(mktemp -d)
 101
 102 test_before_apps
 103 out=$?
 104 if [ $out -ne 0 ]; then
 105         stop_lttng_sessiond
 106         exit $out
 107 fi
 108
 109 rm -rf $TRACE_PATH
 110
 111 diag "Start tracing AFTER application is started"
 112
 113 TRACE_PATH=$(mktemp -d)
 114
 115 test_after_apps
 116 out=$?
 117 if [ $out -ne 0 ]; then
 118         stop_lttng_sessiond
 119         exit $out
 120 fi
 121
 122 stop_lttng_sessiond
 123
 124 rm -rf $TRACE_PATH