tests/regression/tools/streaming/test_kernel

   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="Streaming - Kernel tracing"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 EVENT_NAME="sched_switch"
  22 SESSION_NAME=""
  23
  24 TRACE_PATH=$(mktemp -d)
  25
  26 NUM_TESTS=10
  27
  28 source $TESTDIR/utils/utils.sh
  29
  30 function test_kernel_before_start ()
  31 {
  32         diag "Test kernel streaming with event enable BEFORE start"
  33         create_lttng_session_uri $SESSION_NAME net://localhost
  34         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  35         start_lttng_tracing_ok $SESSION_NAME
  36         # Give a second
  37         sleep 1
  38         stop_lttng_tracing_ok $SESSION_NAME
  39         destroy_lttng_session_ok $SESSION_NAME
  40 }
  41
  42 # Deactivated since this feature is not yet available where we can enable
  43 # an event AFTERE tracing has started.
  44 function test_kernel_after_start ()
  45 {
  46         diag "Test kernel streaming with event enable AFTER start"
  47         create_lttng_session_uri $SESSION_NAME net://localhost
  48         start_lttng_tracing_ok $SESSION_NAME
  49         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  50         # Give a second
  51         sleep 1
  52         stop_lttng_tracing_ok $SESSION_NAME
  53         destroy_lttng_session_ok $SESSION_NAME
  54 }
  55
  56 plan_tests $NUM_TESTS
  57
  58 print_test_banner "$TEST_DESC"
  59
  60 if [ "$(id -u)" == "0" ]; then
  61         isroot=1
  62 else
  63         isroot=0
  64 fi
  65
  66 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
  67 {
  68         validate_lttng_modules_present
  69
  70         start_lttng_relayd "-o $TRACE_PATH"
  71         start_lttng_sessiond
  72
  73         tests=( test_kernel_before_start )
  74
  75         for fct_test in ${tests[@]};
  76         do
  77                 SESSION_NAME=$(randstring 16 0)
  78                 ${fct_test}
  79
  80                 # Validate test
  81                 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  82                 if [ $? -eq 0 ]; then
  83                         # Only delete if successful
  84                         rm -rf $TRACE_PATH
  85                 else
  86                         break
  87                 fi
  88         done
  89
  90         stop_lttng_sessiond
  91         stop_lttng_relayd
  92 }