| 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 | # This library is free software; you can redistribute it and/or modify it under |
| 7 | # the terms of the GNU Lesser General Public License as published by the Free |
| 8 | # Software Foundation; version 2.1 of the License. |
| 9 | # |
| 10 | # This library is distributed in the hope that it will be useful, but WITHOUT |
| 11 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| 12 | # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
| 13 | # details. |
| 14 | # |
| 15 | # You should have received a copy of the GNU Lesser General Public License |
| 16 | # along with this library; if not, write to the Free Software Foundation, Inc., |
| 17 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | TEST_DESC="UST - Blocking mode" |
| 19 | |
| 20 | CURDIR=$(dirname $0)/ |
| 21 | TESTDIR=$CURDIR/../../.. |
| 22 | SESSION_NAME="blocking" |
| 23 | |
| 24 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
| 25 | TESTAPP_NAME="gen-ust-events" |
| 26 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" |
| 27 | EVENT_NAME="tp:tptest" |
| 28 | |
| 29 | NUM_TESTS=45 |
| 30 | |
| 31 | source $TESTDIR/utils/utils.sh |
| 32 | |
| 33 | # MUST set TESTDIR before calling those functions |
| 34 | # Run app on CPU 0 to ensure we only write in a single ring buffer. |
| 35 | function run_app() |
| 36 | { |
| 37 | taskset 0x00000001 $TESTAPP_BIN $NUM_EVENT |
| 38 | ok $? "Application done" |
| 39 | } |
| 40 | |
| 41 | function test_ust_implicit_no_blocking() |
| 42 | { |
| 43 | NUM_EVENT=500000 |
| 44 | diag "UST implicit non-blocking mode (default): will hang if fails" |
| 45 | |
| 46 | # Test without the plugin |
| 47 | start_lttng_sessiond |
| 48 | create_lttng_session_no_output $SESSION_NAME |
| 49 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" |
| 50 | start_lttng_tracing_ok $SESSION_NAME |
| 51 | run_app |
| 52 | stop_lttng_tracing_ok $SESSION_NAME |
| 53 | destroy_lttng_session_ok $SESSION_NAME |
| 54 | stop_lttng_sessiond |
| 55 | |
| 56 | ok 0 "Does not hang" |
| 57 | } |
| 58 | |
| 59 | function test_ust_explicit_no_blocking() |
| 60 | { |
| 61 | NUM_EVENT=500000 |
| 62 | diag "UST explicit non-blocking mode: will hang if fails" |
| 63 | |
| 64 | # Test without the plugin |
| 65 | start_lttng_sessiond |
| 66 | create_lttng_session_no_output $SESSION_NAME |
| 67 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" |
| 68 | start_lttng_tracing_ok $SESSION_NAME |
| 69 | LTTNG_UST_BLOCKING_RETRY_TIMEOUT=0 run_app |
| 70 | stop_lttng_tracing_ok $SESSION_NAME |
| 71 | destroy_lttng_session_ok $SESSION_NAME |
| 72 | stop_lttng_sessiond |
| 73 | |
| 74 | ok 0 "Does not hang" |
| 75 | } |
| 76 | |
| 77 | function test_ust_timeout_no_blocking() |
| 78 | { |
| 79 | NUM_EVENT=12500 |
| 80 | diag "UST 1ms timeout retry mode: will hang if fails" |
| 81 | |
| 82 | start_lttng_sessiond |
| 83 | create_lttng_session_no_output $SESSION_NAME |
| 84 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" |
| 85 | start_lttng_tracing_ok $SESSION_NAME |
| 86 | # retry timeout 1ms |
| 87 | LTTNG_UST_BLOCKING_RETRY_TIMEOUT=1 run_app |
| 88 | stop_lttng_tracing_ok $SESSION_NAME |
| 89 | destroy_lttng_session_ok $SESSION_NAME |
| 90 | stop_lttng_sessiond |
| 91 | |
| 92 | ok 0 "Does not hang" |
| 93 | } |
| 94 | |
| 95 | function test_ust_snapshot_no_blocking() |
| 96 | { |
| 97 | NUM_EVENT=500000 |
| 98 | diag "UST blocking mode: don't block in snapshot mode" |
| 99 | |
| 100 | # Test without the plugin |
| 101 | start_lttng_sessiond |
| 102 | create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot |
| 103 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" |
| 104 | start_lttng_tracing_ok $SESSION_NAME |
| 105 | LTTNG_UST_BLOCKING_RETRY_TIMEOUT=-1 run_app |
| 106 | stop_lttng_tracing_ok $SESSION_NAME |
| 107 | destroy_lttng_session_ok $SESSION_NAME |
| 108 | stop_lttng_sessiond |
| 109 | |
| 110 | ok 0 "Does not hang" |
| 111 | } |
| 112 | |
| 113 | function test_ust_blocking_no_discard() |
| 114 | { |
| 115 | NUM_EVENT=500000 |
| 116 | diag "UST blocking mode: no event discarded" |
| 117 | |
| 118 | # Test without the plugin |
| 119 | start_lttng_sessiond |
| 120 | create_lttng_session_ok $SESSION_NAME $TRACE_PATH |
| 121 | enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" |
| 122 | start_lttng_tracing_ok $SESSION_NAME |
| 123 | # infinite retry timeout |
| 124 | LTTNG_UST_BLOCKING_RETRY_TIMEOUT=-1 run_app |
| 125 | stop_lttng_tracing_ok $SESSION_NAME |
| 126 | destroy_lttng_session_ok $SESSION_NAME |
| 127 | stop_lttng_sessiond |
| 128 | |
| 129 | nr_events=$(babeltrace $TRACE_PATH 2>/dev/null | wc -l) |
| 130 | |
| 131 | test $nr_events -eq $NUM_EVENT |
| 132 | ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT" |
| 133 | } |
| 134 | |
| 135 | plan_tests $NUM_TESTS |
| 136 | |
| 137 | print_test_banner "$TEST_DESC" |
| 138 | |
| 139 | TESTS=( |
| 140 | "test_ust_implicit_no_blocking" |
| 141 | "test_ust_explicit_no_blocking" |
| 142 | "test_ust_timeout_no_blocking" |
| 143 | "test_ust_snapshot_no_blocking" |
| 144 | "test_ust_blocking_no_discard" |
| 145 | ) |
| 146 | |
| 147 | TEST_COUNT=${#TESTS[@]} |
| 148 | i=0 |
| 149 | |
| 150 | while [ "$i" -lt "$TEST_COUNT" ]; do |
| 151 | |
| 152 | TRACE_PATH=$(mktemp -d) |
| 153 | |
| 154 | # Execute test |
| 155 | ${TESTS[$i]} |
| 156 | |
| 157 | rm -rf $TRACE_PATH |
| 158 | |
| 159 | let "i++" |
| 160 | done |