tests/regression/kernel/test_rotation_destroy_flush

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2013 Christian Babeux <christian.babeux@efficios.com>
   4 # Copyright (C) - 2014, 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5 #
   6 # This program is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU General Public License, version 2 only, as
   8 # published by the Free Software Foundation.
   9 #
  10 # This program is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 # more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along with
  16 # this program; if not, write to the Free Software Foundation, Inc., 51
  17 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19 TEST_DESC="Kernel tracer - Rotation destroy flush"
  20
  21 CURDIR=$(dirname $0)/
  22 TESTDIR=$CURDIR/../..
  23 SESSION_NAME="rotation_destroy_flush"
  24
  25 NR_ITER=10
  26 NUM_TESTS=$((13*$NR_ITER))
  27 EVENT_NAME="lttng_test_filter_event"
  28 CHANNEL_NAME="testchan"
  29 PAGE_SIZE=$(getconf PAGE_SIZE)
  30 SIZE_LIMIT=$PAGE_SIZE
  31
  32 TESTCMD="echo -n 10000 > /proc/lttng-test-filter-event"
  33
  34 # Ensure the daemons invoke abort on error.
  35 export LTTNG_ABORT_ON_ERROR=1
  36
  37 source $TESTDIR/utils/utils.sh
  38
  39 function signal_cleanup()
  40 {
  41         diag "*** Exiting ***"
  42         modprobe -r lttng-test
  43         full_cleanup
  44 }
  45
  46 function enable_kernel_lttng_channel_size_limit ()
  47 {
  48         sess_name="$1"
  49         channel_name="$2"
  50         tracefile_size_limit="$3"
  51
  52         test_name="Enable channel $channel_name "
  53         test_name+="for session $sess_name: "
  54         test_name+="$tracefile_size_limit bytes tracefile limit"
  55
  56         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
  57             -k $channel_name -s $sess_name \
  58             -C $tracefile_size_limit >/dev/null 2>&1
  59
  60         ok $? "$test_name"
  61 }
  62
  63 function enable_kernel_lttng_event_per_channel ()
  64 {
  65         sess_name="$1"
  66         event_name="$2"
  67         channel_name="$3"
  68
  69         test_name="Enable event $event_name "
  70         test_name+="for session $sess_name "
  71         test_name+="in channel $channel_name"
  72
  73         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
  74             -s $sess_name -k -c $channel_name >/dev/null 2>&1
  75
  76         ok $? "$test_name"
  77 }
  78
  79 function test_rotation_destroy_flush_single()
  80 {
  81         start_lttng_sessiond
  82         modprobe lttng-test
  83
  84         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  85         enable_kernel_lttng_channel_size_limit \
  86                 $SESSION_NAME $CHANNEL_NAME $SIZE_LIMIT
  87         enable_kernel_lttng_event_per_channel \
  88                 $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
  89         start_lttng_tracing_ok $SESSION_NAME
  90         eval ${TESTCMD}
  91         # stop and destroy
  92         stop_lttng_tracing_ok $SESSION_NAME
  93         destroy_lttng_session_ok $SESSION_NAME
  94
  95         rm -rf $TRACE_PATH
  96
  97         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  98         enable_kernel_lttng_channel_size_limit \
  99                 $SESSION_NAME $CHANNEL_NAME $SIZE_LIMIT
 100         enable_kernel_lttng_event_per_channel \
 101                 $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
 102         start_lttng_tracing_ok $SESSION_NAME
 103         eval ${TESTCMD}
 104         # destroy only
 105         destroy_lttng_session_ok $SESSION_NAME
 106
 107         rm -rf $TRACE_PATH
 108
 109         modprobe -r lttng-test
 110         stop_lttng_sessiond
 111 }
 112
 113 function test_rotation_destroy_flush()
 114 {
 115         for a in $(seq 1 ${NR_ITER}); do
 116                 diag "Iteration ${a}/${NR_ITER}"
 117                 test_rotation_destroy_flush_single
 118         done
 119 }
 120
 121 # MUST set TESTDIR before calling those functions
 122 plan_tests $NUM_TESTS
 123
 124 print_test_banner "$TEST_DESC"
 125
 126 TESTS=(
 127         "test_rotation_destroy_flush"
 128 )
 129
 130 TEST_COUNT=${#TESTS[@]}
 131 i=0
 132
 133 if [ "$(id -u)" == "0" ]; then
 134         isroot=1
 135 else
 136         isroot=0
 137 fi
 138
 139 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 140 {
 141         trap signal_cleanup SIGTERM SIGINT
 142
 143         while [ "$i" -lt "$TEST_COUNT" ]; do
 144
 145                 TRACE_PATH=$(mktemp -d)
 146
 147                 # Execute test
 148                 ${TESTS[$i]}
 149
 150                 let "i++"
 151         done
 152 }