| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> |
| 4 | # Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | # |
| 6 | # SPDX-License-Identifier: LGPL-2.1-only |
| 7 | |
| 8 | TEST_DESC="UST - Blocking mode" |
| 9 | |
| 10 | CURDIR=$(dirname $0)/ |
| 11 | TESTDIR=$CURDIR/../../.. |
| 12 | SESSION_NAME="blocking" |
| 13 | CHANNEL_NAME="testchan" |
| 14 | |
| 15 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
| 16 | TESTAPP_NAME="gen-ust-events" |
| 17 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" |
| 18 | EVENT_NAME="tp:tptest" |
| 19 | |
| 20 | NUM_TESTS=49 |
| 21 | |
| 22 | source $TESTDIR/utils/utils.sh |
| 23 | |
| 24 | # MUST set TESTDIR before calling those functions |
| 25 | # Run app on CPU 0 to ensure we only write in a single ring buffer. |
| 26 | function run_app() |
| 27 | { |
| 28 | taskset 0x00000001 $TESTAPP_BIN -i $NUM_EVENT |
| 29 | ok $? "Application done" |
| 30 | } |
| 31 | |
| 32 | function test_ust_implicit_no_blocking() |
| 33 | { |
| 34 | NUM_EVENT=5000000 |
| 35 | diag "UST implicit non-blocking mode (default): will hang if fails" |
| 36 | |
| 37 | start_lttng_sessiond |
| 38 | # session in no-output mode |
| 39 | create_lttng_session_no_output $SESSION_NAME |
| 40 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" |
| 41 | start_lttng_tracing_ok $SESSION_NAME |
| 42 | run_app |
| 43 | stop_lttng_tracing_ok $SESSION_NAME |
| 44 | destroy_lttng_session_ok $SESSION_NAME |
| 45 | stop_lttng_sessiond |
| 46 | |
| 47 | ok 0 "Does not hang" |
| 48 | } |
| 49 | |
| 50 | function test_ust_implicit_no_blocking_with_channel_blocking() |
| 51 | { |
| 52 | NUM_EVENT=5000000 |
| 53 | diag "UST implicit non-blocking mode (default) with blocking-timeout=inf channel: will hang if fails" |
| 54 | |
| 55 | start_lttng_sessiond |
| 56 | # session in no-output mode |
| 57 | create_lttng_session_no_output $SESSION_NAME |
| 58 | enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf" |
| 59 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME |
| 60 | start_lttng_tracing_ok $SESSION_NAME |
| 61 | run_app |
| 62 | stop_lttng_tracing_ok $SESSION_NAME |
| 63 | destroy_lttng_session_ok $SESSION_NAME |
| 64 | stop_lttng_sessiond |
| 65 | |
| 66 | ok 0 "Does not hang" |
| 67 | } |
| 68 | |
| 69 | function test_ust_timeout_no_blocking() |
| 70 | { |
| 71 | NUM_EVENT=12500 |
| 72 | diag "UST 1ms timeout blocking mode: will hang if fails" |
| 73 | |
| 74 | start_lttng_sessiond |
| 75 | # session in no-output mode |
| 76 | create_lttng_session_no_output $SESSION_NAME |
| 77 | # blocking timeout 1ms |
| 78 | enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000" |
| 79 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME |
| 80 | start_lttng_tracing_ok $SESSION_NAME |
| 81 | LTTNG_UST_ALLOW_BLOCKING=1 run_app |
| 82 | stop_lttng_tracing_ok $SESSION_NAME |
| 83 | destroy_lttng_session_ok $SESSION_NAME |
| 84 | stop_lttng_sessiond |
| 85 | |
| 86 | ok 0 "Does not hang" |
| 87 | } |
| 88 | |
| 89 | function test_ust_snapshot_no_blocking() |
| 90 | { |
| 91 | NUM_EVENT=5000000 |
| 92 | diag "UST blocking mode: don't block in snapshot mode" |
| 93 | |
| 94 | # Test without the plugin |
| 95 | start_lttng_sessiond |
| 96 | create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot |
| 97 | # blocking timeout 1ms |
| 98 | enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000" |
| 99 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME |
| 100 | start_lttng_tracing_ok $SESSION_NAME |
| 101 | LTTNG_UST_ALLOW_BLOCKING=1 run_app |
| 102 | stop_lttng_tracing_ok $SESSION_NAME |
| 103 | destroy_lttng_session_ok $SESSION_NAME |
| 104 | stop_lttng_sessiond |
| 105 | |
| 106 | ok 0 "Does not hang" |
| 107 | } |
| 108 | |
| 109 | function test_ust_blocking_no_discard() |
| 110 | { |
| 111 | NUM_EVENT=5000000 |
| 112 | diag "UST blocking mode: no event discarded" |
| 113 | |
| 114 | # Test without the plugin |
| 115 | start_lttng_sessiond |
| 116 | create_lttng_session_ok $SESSION_NAME $TRACE_PATH |
| 117 | # infinite blocking timeout |
| 118 | enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf" |
| 119 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME |
| 120 | start_lttng_tracing_ok $SESSION_NAME |
| 121 | LTTNG_UST_ALLOW_BLOCKING=1 run_app |
| 122 | stop_lttng_tracing_ok $SESSION_NAME |
| 123 | destroy_lttng_session_ok $SESSION_NAME |
| 124 | stop_lttng_sessiond |
| 125 | |
| 126 | nr_events=$(babeltrace $TRACE_PATH 2>/dev/null | wc -l) |
| 127 | |
| 128 | test $nr_events -eq $NUM_EVENT |
| 129 | ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT" |
| 130 | } |
| 131 | |
| 132 | plan_tests $NUM_TESTS |
| 133 | |
| 134 | print_test_banner "$TEST_DESC" |
| 135 | |
| 136 | TESTS=( |
| 137 | "test_ust_implicit_no_blocking" |
| 138 | "test_ust_implicit_no_blocking_with_channel_blocking" |
| 139 | "test_ust_timeout_no_blocking" |
| 140 | "test_ust_snapshot_no_blocking" |
| 141 | "test_ust_blocking_no_discard" |
| 142 | ) |
| 143 | |
| 144 | TEST_COUNT=${#TESTS[@]} |
| 145 | i=0 |
| 146 | |
| 147 | while [ "$i" -lt "$TEST_COUNT" ]; do |
| 148 | |
| 149 | TRACE_PATH=$(mktemp -d) |
| 150 | |
| 151 | # Execute test |
| 152 | ${TESTS[$i]} |
| 153 | |
| 154 | rm -rf $TRACE_PATH |
| 155 | |
| 156 | let "i++" |
| 157 | done |