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=16
  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 test_before_apps()
  39 {
  40         # BEFORE application is spawned
  41         create_lttng_session $SESSION_NAME $TRACE_PATH
  42         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  43         start_lttng_tracing $SESSION_NAME
  44
  45         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
  46         wait
  47         ok $? "Traced application stopped."
  48
  49         stop_lttng_tracing $SESSION_NAME
  50         destroy_lttng_session $SESSION_NAME
  51
  52         trace_match_only $EVENT_NAME $NR_ITER $TRACE_PATH
  53
  54         return $?
  55 }
  56
  57 function test_after_apps()
  58 {
  59         local out
  60
  61         create_lttng_session $SESSION_NAME $TRACE_PATH
  62         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  63
  64         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
  65         ok $? "Application started in background."
  66
  67         #FIXME: racy missing synchronization
  68
  69         start_lttng_tracing $SESSION_NAME
  70
  71         wait
  72
  73         stop_lttng_tracing $SESSION_NAME
  74         destroy_lttng_session $SESSION_NAME
  75
  76         validate_trace $EVENT_NAME $TRACE_PATH
  77         out=$?
  78
  79         return $out
  80 }
  81
  82 # MUST set TESTDIR before calling those functions
  83 plan_tests $NUM_TESTS
  84
  85 print_test_banner "$TEST_DESC"
  86
  87 start_lttng_sessiond
  88
  89 diag "Start tracing BEFORE application is started"
  90
  91 TRACE_PATH=$(mktemp -d)
  92
  93 test_before_apps
  94 out=$?
  95 if [ $out -ne 0 ]; then
  96         stop_lttng_sessiond
  97         exit $out
  98 fi
  99
 100 rm -rf $TRACE_PATH
 101
 102 diag "Start tracing AFTER application is started"
 103
 104 TRACE_PATH=$(mktemp -d)
 105
 106 test_after_apps
 107 out=$?
 108 if [ $out -ne 0 ]; then
 109         stop_lttng_sessiond
 110         exit $out
 111 fi
 112
 113 stop_lttng_sessiond
 114
 115 rm -rf $TRACE_PATH