tests/regression/kernel/test_channel

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2018 Francis Deslauriers <francis.deslauriers@efficios.com>
   4 #
   5 # SPDX-License-Identifier: GPL-2.0-only
   6 #
   7
   8 TEST_DESC="Kernel tracer - Channel configuration"
   9
  10 CURDIR=$(dirname $0)/
  11 TESTDIR=$CURDIR/../..
  12 NUM_TESTS=8
  13
  14 source $TESTDIR/utils/utils.sh
  15
  16 function test_channel_buffer()
  17 {
  18         TRACE_PATH=$(mktemp --tmpdir -d "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
  19         SESSION_NAME="test_session_name"
  20         CHANNEL_NAME="test_channel_name"
  21         create_lttng_session_ok "$SESSION_NAME" "$TRACE_PATH"
  22
  23         # Try to create a tiny buffer.
  24         lttng_enable_kernel_channel_ok "$SESSION_NAME" "$CHANNEL_NAME" --subbuf-size=4k --num-subbuf=1
  25
  26         destroy_lttng_session_ok "$SESSION_NAME"
  27
  28         rm -rf "$TRACE_PATH"
  29 }
  30
  31 function test_channel_buffer_too_large()
  32 {
  33         TRACE_PATH=$(mktemp --tmpdir -d "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
  34         SESSION_NAME="test_session_name"
  35         CHANNEL_NAME="test_channel_name"
  36         create_lttng_session_ok "$SESSION_NAME" "$TRACE_PATH"
  37
  38         # Try to create a buffer larger than memory. This testcase will need to
  39         # be adjusted if someone has a computer with 1024*1000 GB of ram.
  40         lttng_enable_kernel_channel_fail "$SESSION_NAME" "$CHANNEL_NAME" --subbuf-size=1000G --num-subbuf=1024
  41
  42         destroy_lttng_session_ok "$SESSION_NAME"
  43
  44         rm -rf "$TRACE_PATH"
  45 }
  46
  47 plan_tests $NUM_TESTS
  48 print_test_banner "$TEST_DESC"
  49
  50 if [ "$(id -u)" == "0" ]; then
  51         isroot=1
  52 else
  53         isroot=0
  54 fi
  55
  56 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
  57 {
  58         start_lttng_sessiond
  59
  60         test_channel_buffer
  61         test_channel_buffer_too_large
  62
  63         stop_lttng_sessiond
  64 }