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         rmmod lttng-test
  43         stop_lttng_sessiond
  44         exit 1
  45 }
  46
  47 function enable_kernel_lttng_channel_size_limit ()
  48 {
  49         sess_name="$1"
  50         channel_name="$2"
  51         tracefile_size_limit="$3"
  52
  53         test_name="Enable channel $channel_name "
  54         test_name+="for session $sess_name: "
  55         test_name+="$tracefile_size_limit bytes tracefile limit"
  56
  57         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
  58             -k $channel_name -s $sess_name \
  59             -C $tracefile_size_limit >/dev/null 2>&1
  60
  61         ok $? "$test_name"
  62 }
  63
  64 function enable_kernel_lttng_event_per_channel ()
  65 {
  66         sess_name="$1"
  67         event_name="$2"
  68         channel_name="$3"
  69
  70         test_name="Enable event $event_name "
  71         test_name+="for session $sess_name "
  72         test_name+="in channel $channel_name"
  73
  74         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
  75             -s $sess_name -k -c $channel_name >/dev/null 2>&1
  76
  77         ok $? "$test_name"
  78 }
  79
  80 function test_rotation_destroy_flush_single()
  81 {
  82         start_lttng_sessiond
  83         modprobe lttng-test
  84
  85         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  86         enable_kernel_lttng_channel_size_limit \
  87                 $SESSION_NAME $CHANNEL_NAME $SIZE_LIMIT
  88         enable_kernel_lttng_event_per_channel \
  89                 $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
  90         start_lttng_tracing_ok $SESSION_NAME
  91         eval ${TESTCMD}
  92         # stop and destroy
  93         stop_lttng_tracing_ok $SESSION_NAME
  94         destroy_lttng_session_ok $SESSION_NAME
  95
  96         rm -rf $TRACE_PATH
  97
  98         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  99         enable_kernel_lttng_channel_size_limit \
 100                 $SESSION_NAME $CHANNEL_NAME $SIZE_LIMIT
 101         enable_kernel_lttng_event_per_channel \
 102                 $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
 103         start_lttng_tracing_ok $SESSION_NAME
 104         eval ${TESTCMD}
 105         # destroy only
 106         destroy_lttng_session_ok $SESSION_NAME
 107
 108         rm -rf $TRACE_PATH
 109
 110         rmmod lttng-test
 111         stop_lttng_sessiond
 112 }
 113
 114 function test_rotation_destroy_flush()
 115 {
 116         for a in $(seq 1 ${NR_ITER}); do
 117                 diag "Iteration ${a}/${NR_ITER}"
 118                 test_rotation_destroy_flush_single
 119         done
 120 }
 121
 122 # MUST set TESTDIR before calling those functions
 123 plan_tests $NUM_TESTS
 124
 125 print_test_banner "$TEST_DESC"
 126
 127 TESTS=(
 128         "test_rotation_destroy_flush"
 129 )
 130
 131 TEST_COUNT=${#TESTS[@]}
 132 i=0
 133
 134 if [ "$(id -u)" == "0" ]; then
 135         isroot=1
 136 else
 137         isroot=0
 138 fi
 139
 140 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 141 {
 142         trap signal_cleanup SIGTERM SIGINT
 143
 144         while [ "$i" -lt "$TEST_COUNT" ]; do
 145
 146                 TRACE_PATH=$(mktemp -d)
 147
 148                 # Execute test
 149                 ${TESTS[$i]}
 150
 151                 let "i++"
 152         done
 153 }