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 lttng_create_session_uri
  32 {
  33         # Create session with default path
  34         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
  35
  36         ok $? "Create session $SESSION_NAME"
  37 }
  38
  39 function test_kernel_before_start ()
  40 {
  41         diag "Test kernel streaming with event enable BEFORE start"
  42         lttng_create_session_uri
  43         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  44         start_lttng_tracing_ok $SESSION_NAME
  45         # Give a second
  46         sleep 1
  47         stop_lttng_tracing_ok $SESSION_NAME
  48         destroy_lttng_session_ok $SESSION_NAME
  49 }
  50
  51 # Deactivated since this feature is not yet available where we can enable
  52 # an event AFTERE tracing has started.
  53 function test_kernel_after_start ()
  54 {
  55         diag "Test kernel streaming with event enable AFTER start"
  56         lttng_create_session_uri
  57         start_lttng_tracing_ok $SESSION_NAME
  58         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  59         # Give a second
  60         sleep 1
  61         stop_lttng_tracing_ok $SESSION_NAME
  62         destroy_lttng_session_ok $SESSION_NAME
  63 }
  64
  65 plan_tests $NUM_TESTS
  66
  67 print_test_banner "$TEST_DESC"
  68
  69 if [ "$(id -u)" == "0" ]; then
  70         isroot=1
  71 else
  72         isroot=0
  73 fi
  74
  75 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
  76 {
  77         validate_lttng_modules_present
  78
  79         start_lttng_relayd "-o $TRACE_PATH"
  80         start_lttng_sessiond
  81
  82         tests=( test_kernel_before_start )
  83
  84         for fct_test in ${tests[@]};
  85         do
  86                 SESSION_NAME=$(randstring 16 0)
  87                 ${fct_test}
  88
  89                 # Validate test
  90                 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  91                 if [ $? -eq 0 ]; then
  92                         # Only delete if successful
  93                         rm -rf $TRACE_PATH
  94                 else
  95                         break
  96                 fi
  97         done
  98
  99         stop_lttng_sessiond
 100         stop_lttng_relayd
 101 }