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 PID_RELAYD=0
  23 SESSION_NAME=""
  24
  25 TRACE_PATH=$(mktemp -d)
  26
  27 NUM_TESTS=10
  28
  29 source $TESTDIR/utils/utils.sh
  30
  31 function test_kernel_before_start ()
  32 {
  33         diag "Test kernel streaming with event enable BEFORE start"
  34         create_lttng_session_uri $SESSION_NAME net://localhost
  35         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  36         start_lttng_tracing_ok $SESSION_NAME
  37         # Give a second
  38         sleep 1
  39         stop_lttng_tracing_ok $SESSION_NAME
  40         destroy_lttng_session_ok $SESSION_NAME
  41 }
  42
  43 # Deactivated since this feature is not yet available where we can enable
  44 # an event AFTERE tracing has started.
  45 function test_kernel_after_start ()
  46 {
  47         diag "Test kernel streaming with event enable AFTER start"
  48         create_lttng_session_uri $SESSION_NAME net://localhost
  49         start_lttng_tracing_ok $SESSION_NAME
  50         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  51         # Give a second
  52         sleep 1
  53         stop_lttng_tracing_ok $SESSION_NAME
  54         destroy_lttng_session_ok $SESSION_NAME
  55 }
  56
  57 plan_tests $NUM_TESTS
  58
  59 print_test_banner "$TEST_DESC"
  60
  61 if [ "$(id -u)" == "0" ]; then
  62         isroot=1
  63 else
  64         isroot=0
  65 fi
  66
  67 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
  68 {
  69         validate_lttng_modules_present
  70
  71         start_lttng_relayd "-o $TRACE_PATH"
  72         start_lttng_sessiond
  73
  74         tests=( test_kernel_before_start )
  75
  76         for fct_test in ${tests[@]};
  77         do
  78                 SESSION_NAME=$(randstring 16 0)
  79                 ${fct_test}
  80
  81                 # Validate test
  82                 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  83                 if [ $? -eq 0 ]; then
  84                         # Only delete if successful
  85                         rm -rf $TRACE_PATH
  86                 else
  87                         break
  88                 fi
  89         done
  90
  91         stop_lttng_sessiond
  92         stop_lttng_relayd
  93 }