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 # SPDX-License-Identifier: GPL-2.0-only
   7 #
   8
   9 TEST_DESC="Kernel tracer - Rotation destroy flush"
  10
  11 CURDIR=$(dirname $0)/
  12 TESTDIR=$CURDIR/../..
  13 SESSION_NAME="rotation_destroy_flush"
  14
  15 NR_ITER=10
  16 NUM_TESTS=$((13*$NR_ITER))
  17 EVENT_NAME="lttng_test_filter_event"
  18 CHANNEL_NAME="testchan"
  19 PAGE_SIZE=$(getconf PAGE_SIZE)
  20 SIZE_LIMIT=$PAGE_SIZE
  21
  22 TESTCMD="echo -n 10000 > /proc/lttng-test-filter-event"
  23
  24 # Ensure the daemons invoke abort on error.
  25 export LTTNG_ABORT_ON_ERROR=1
  26
  27 source $TESTDIR/utils/utils.sh
  28
  29 function signal_cleanup()
  30 {
  31         diag "*** Exiting ***"
  32         modprobe -r lttng-test
  33         full_cleanup
  34 }
  35
  36 function enable_kernel_lttng_channel_size_limit ()
  37 {
  38         sess_name="$1"
  39         channel_name="$2"
  40         tracefile_size_limit="$3"
  41
  42         test_name="Enable channel $channel_name "
  43         test_name+="for session $sess_name: "
  44         test_name+="$tracefile_size_limit bytes tracefile limit"
  45
  46         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
  47             -k $channel_name -s $sess_name \
  48             -C $tracefile_size_limit >/dev/null 2>&1
  49
  50         ok $? "$test_name"
  51 }
  52
  53 function enable_kernel_lttng_event_per_channel ()
  54 {
  55         sess_name="$1"
  56         event_name="$2"
  57         channel_name="$3"
  58
  59         test_name="Enable event $event_name "
  60         test_name+="for session $sess_name "
  61         test_name+="in channel $channel_name"
  62
  63         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
  64             -s $sess_name -k -c $channel_name >/dev/null 2>&1
  65
  66         ok $? "$test_name"
  67 }
  68
  69 function test_rotation_destroy_flush_single()
  70 {
  71         start_lttng_sessiond
  72         modprobe lttng-test
  73
  74         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  75         enable_kernel_lttng_channel_size_limit \
  76                 $SESSION_NAME $CHANNEL_NAME $SIZE_LIMIT
  77         enable_kernel_lttng_event_per_channel \
  78                 $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
  79         start_lttng_tracing_ok $SESSION_NAME
  80         eval ${TESTCMD}
  81         # stop and destroy
  82         stop_lttng_tracing_ok $SESSION_NAME
  83         destroy_lttng_session_ok $SESSION_NAME
  84
  85         rm -rf $TRACE_PATH
  86
  87         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  88         enable_kernel_lttng_channel_size_limit \
  89                 $SESSION_NAME $CHANNEL_NAME $SIZE_LIMIT
  90         enable_kernel_lttng_event_per_channel \
  91                 $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
  92         start_lttng_tracing_ok $SESSION_NAME
  93         eval ${TESTCMD}
  94         # destroy only
  95         destroy_lttng_session_ok $SESSION_NAME
  96
  97         rm -rf $TRACE_PATH
  98
  99         modprobe -r lttng-test
 100         stop_lttng_sessiond
 101 }
 102
 103 function test_rotation_destroy_flush()
 104 {
 105         for a in $(seq 1 ${NR_ITER}); do
 106                 diag "Iteration ${a}/${NR_ITER}"
 107                 test_rotation_destroy_flush_single
 108         done
 109 }
 110
 111 # MUST set TESTDIR before calling those functions
 112 plan_tests $NUM_TESTS
 113
 114 print_test_banner "$TEST_DESC"
 115
 116 TESTS=(
 117         "test_rotation_destroy_flush"
 118 )
 119
 120 TEST_COUNT=${#TESTS[@]}
 121 i=0
 122
 123 if [ "$(id -u)" == "0" ]; then
 124         isroot=1
 125 else
 126         isroot=0
 127 fi
 128
 129 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 130 {
 131         trap signal_cleanup SIGTERM SIGINT
 132
 133         while [ "$i" -lt "$TEST_COUNT" ]; do
 134
 135                 TRACE_PATH=$(mktemp -d)
 136
 137                 # Execute test
 138                 ${TESTS[$i]}
 139
 140                 let "i++"
 141         done
 142 }