Tests: use modprobe to test for the presence of lttng-modules
[lttng-tools.git] / tests / regression / tools / snapshots / test_kernel_streaming
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1#!/bin/bash
2#
3# Copyright (C) - 2013 David Goulet <dgoulet@efficios.com>
4#
5# This library is free software; you can redistribute it and/or modify it under
6# the terms of the GNU Lesser General Public License as published by the Free
7# Software Foundation; version 2.1 of the License.
8#
9# This library is distributed in the hope that it will be useful, but WITHOUT
10# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12# details.
13#
14# You should have received a copy of the GNU Lesser General Public License
15# along with this library; if not, write to the Free Software Foundation, Inc.,
16# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17TEST_DESC="Streaming - Snapshot Kernel tracing"
18
19CURDIR=$(dirname $0)/
20TESTDIR=$CURDIR/../../..
21EVENT_NAME="sched_switch"
22PID_RELAYD=0
23SESSION_NAME=""
24CHANNEL_NAME="chan1"
25
26TRACE_PATH=$(mktemp -d)
27
25d6f007 28NUM_TESTS=36
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29
30source $TESTDIR/utils/utils.sh
31
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32function snapshot_add_output ()
33{
34 local sess_name=$1
35 local trace_path=$2
36 local name=$3
37 local extra_opt=""
38
39 if [ ! -z $name ]; then
40 extra_opt="-n $name"
41 fi
42
43 $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output -s $sess_name $extra_opt $trace_path >/dev/null 2>&1
44 ok $? "Added snapshot output $trace_path"
45}
46
47# Test a snapshot using a default name for the output destination.
48function test_kernel_default_name_with_del()
49{
50 diag "Test kernel snapshot streaming with default name with delete output"
51 create_lttng_session_no_output $SESSION_NAME
52 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
53 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb 54 start_lttng_tracing_ok $SESSION_NAME
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55 snapshot_add_output $SESSION_NAME "net://localhost"
56 lttng_snapshot_record $SESSION_NAME
57
58 # Validate test
59 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1*
60 if [ $? -ne 0 ]; then
61 return $?
62 fi
63
31580dc7 64 lttng_snapshot_del_output_ok $SESSION_NAME 1
26402e0c 65 snapshot_add_output $SESSION_NAME "net://localhost"
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66 lttng_snapshot_record $SESSION_NAME
67
68 # Validate test with the next ID since a del output was done prior.
69 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-2*
70 if [ $? -ne 0 ]; then
71 return $?
72 fi
73
96340a01 74 stop_lttng_tracing_ok $SESSION_NAME
67b4c664 75 destroy_lttng_session_ok $SESSION_NAME
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76
77 return 0
78}
79
80# Test a snapshot using a default name for the output destination.
81function test_kernel_default_name()
82{
83 diag "Test kernel snapshot streaming with default name"
84 create_lttng_session_no_output $SESSION_NAME
85 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
86 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb 87 start_lttng_tracing_ok $SESSION_NAME
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88 snapshot_add_output $SESSION_NAME "net://localhost"
89 lttng_snapshot_record $SESSION_NAME
96340a01 90 stop_lttng_tracing_ok $SESSION_NAME
67b4c664 91 destroy_lttng_session_ok $SESSION_NAME
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92 # Validate test
93 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1*
94 out=$?
95
96 return $out
97}
98
99# Test a snapshot using a custom name for the output destination.
100function test_kernel_custom_name()
101{
102 local out
103 local name="asnapshotname"
104
105 diag "Test kernel snapshot streaming with custom name"
106 create_lttng_session_no_output $SESSION_NAME
107 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
108 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb 109 start_lttng_tracing_ok $SESSION_NAME
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110 snapshot_add_output $SESSION_NAME "net://localhost" $name
111 lttng_snapshot_record $SESSION_NAME
96340a01 112 stop_lttng_tracing_ok $SESSION_NAME
67b4c664 113 destroy_lttng_session_ok $SESSION_NAME
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114
115 if ls $TRACE_PATH/$HOSTNAME/$name* &> /dev/null; then
116 ok 0 "Custom name snapshot exists"
117 # Validate test
118 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$name-*
119 out=$?
120 else
121 fail "No custom name snapshot found"
122 out=1
123 fi
124
125 return $out
126}
127
128plan_tests $NUM_TESTS
129
130print_test_banner "$TEST_DESC"
131
132if [ "$(id -u)" == "0" ]; then
133 isroot=1
134else
135 isroot=0
136fi
137
138skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
139{
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140 validate_lttng_modules_present
141
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142 start_lttng_relayd "-o $TRACE_PATH"
143 start_lttng_sessiond
144
145 tests=( test_kernel_default_name test_kernel_custom_name \
146 test_kernel_default_name_with_del )
147
148 for fct_test in ${tests[@]};
149 do
150 SESSION_NAME=$(randstring 16 0)
151 ${fct_test}
152 if [ $? -eq 0 ]; then
153 # Only delete if successful
25d6f007 154 rm -rf $TRACE_PATH
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155 else
156 break
157 fi
158 done
159
160 stop_lttng_sessiond
161 stop_lttng_relayd
162}
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