Tests: Add kernel snapshot streaming
[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
28NUM_TESTS=13
29
30source $TESTDIR/utils/utils.sh
31
32# LTTng kernel modules check
33out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
34if [ -z "$out" ]; then
35 BAIL_OUT "LTTng modules not detected."
36fi
37
38function snapshot_add_output ()
39{
40 local sess_name=$1
41 local trace_path=$2
42 local name=$3
43 local extra_opt=""
44
45 if [ ! -z $name ]; then
46 extra_opt="-n $name"
47 fi
48
49 $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output -s $sess_name $extra_opt $trace_path >/dev/null 2>&1
50 ok $? "Added snapshot output $trace_path"
51}
52
53# Test a snapshot using a default name for the output destination.
54function test_kernel_default_name_with_del()
55{
56 diag "Test kernel snapshot streaming with default name with delete output"
57 create_lttng_session_no_output $SESSION_NAME
58 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
59 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
60 start_lttng_tracing $SESSION_NAME
61 snapshot_add_output $SESSION_NAME "net://localhost"
62 lttng_snapshot_record $SESSION_NAME
63
64 # Validate test
65 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1*
66 if [ $? -ne 0 ]; then
67 return $?
68 fi
69
70 lttng_snapshot_del_output $SESSION_NAME 1
71 snapshot_add_output $SESSION_NAME "net://localhost"
72 lttng snapshot list-output
73 lttng_snapshot_record $SESSION_NAME
74
75 # Validate test with the next ID since a del output was done prior.
76 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-2*
77 if [ $? -ne 0 ]; then
78 return $?
79 fi
80
81 stop_lttng_tracing $SESSION_NAME
82 destroy_lttng_session $SESSION_NAME
83
84 return 0
85}
86
87# Test a snapshot using a default name for the output destination.
88function test_kernel_default_name()
89{
90 diag "Test kernel snapshot streaming with default name"
91 create_lttng_session_no_output $SESSION_NAME
92 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
93 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
94 start_lttng_tracing $SESSION_NAME
95 snapshot_add_output $SESSION_NAME "net://localhost"
96 lttng_snapshot_record $SESSION_NAME
97 stop_lttng_tracing $SESSION_NAME
98 destroy_lttng_session $SESSION_NAME
99 # Validate test
100 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1*
101 out=$?
102
103 return $out
104}
105
106# Test a snapshot using a custom name for the output destination.
107function test_kernel_custom_name()
108{
109 local out
110 local name="asnapshotname"
111
112 diag "Test kernel snapshot streaming with custom name"
113 create_lttng_session_no_output $SESSION_NAME
114 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
115 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
116 start_lttng_tracing $SESSION_NAME
117 snapshot_add_output $SESSION_NAME "net://localhost" $name
118 lttng_snapshot_record $SESSION_NAME
119 stop_lttng_tracing $SESSION_NAME
120 destroy_lttng_session $SESSION_NAME
121
122 if ls $TRACE_PATH/$HOSTNAME/$name* &> /dev/null; then
123 ok 0 "Custom name snapshot exists"
124 # Validate test
125 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$name-*
126 out=$?
127 else
128 fail "No custom name snapshot found"
129 out=1
130 fi
131
132 return $out
133}
134
135plan_tests $NUM_TESTS
136
137print_test_banner "$TEST_DESC"
138
139if [ "$(id -u)" == "0" ]; then
140 isroot=1
141else
142 isroot=0
143fi
144
145skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
146{
147 start_lttng_relayd "-o $TRACE_PATH"
148 start_lttng_sessiond
149
150 tests=( test_kernel_default_name test_kernel_custom_name \
151 test_kernel_default_name_with_del )
152
153 for fct_test in ${tests[@]};
154 do
155 SESSION_NAME=$(randstring 16 0)
156 ${fct_test}
157 if [ $? -eq 0 ]; then
158 # Only delete if successful
159 echo allo
160 #rm -rf $TRACE_PATH
161 else
162 break
163 fi
164 done
165
166 stop_lttng_sessiond
167 stop_lttng_relayd
168}
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