7b96ef27072157d1010e278c8a09e7224d551985
[lttng-tools.git] / tests / regression / tools / snapshots / test_kernel_streaming
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
17 TEST_DESC="Streaming - Snapshot Kernel tracing"
18
19 CURDIR=$(dirname $0)/
20 TESTDIR=$CURDIR/../../..
21 EVENT_NAME="sched_switch"
22 PID_RELAYD=0
23 SESSION_NAME=""
24 CHANNEL_NAME="chan1"
25
26 TRACE_PATH=$(mktemp -d)
27
28 NUM_TESTS=61
29
30 source $TESTDIR/utils/utils.sh
31
32 # LTTng kernel modules check
33 out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
34 if [ -z "$out" ]; then
35 BAIL_OUT "LTTng modules not detected."
36 fi
37
38 function 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.
54 function 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_ok $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_ok $SESSION_NAME 1
71 snapshot_add_output $SESSION_NAME "net://localhost"
72 lttng_snapshot_record $SESSION_NAME
73
74 # Validate test with the next ID since a del output was done prior.
75 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-2*
76 if [ $? -ne 0 ]; then
77 return $?
78 fi
79
80 stop_lttng_tracing_ok $SESSION_NAME
81 destroy_lttng_session_ok $SESSION_NAME
82
83 return 0
84 }
85
86 # Test a snapshot using a default name for the output destination.
87 function test_kernel_default_name()
88 {
89 diag "Test kernel snapshot streaming with default name"
90 create_lttng_session_no_output $SESSION_NAME
91 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
92 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
93 start_lttng_tracing_ok $SESSION_NAME
94 snapshot_add_output $SESSION_NAME "net://localhost"
95 lttng_snapshot_record $SESSION_NAME
96 stop_lttng_tracing_ok $SESSION_NAME
97 destroy_lttng_session_ok $SESSION_NAME
98 # Validate test
99 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1*
100 out=$?
101
102 return $out
103 }
104
105 # Test a snapshot using a custom name for the output destination.
106 function test_kernel_custom_name()
107 {
108 local out
109 local name="asnapshotname"
110
111 diag "Test kernel snapshot streaming with custom name"
112 create_lttng_session_no_output $SESSION_NAME
113 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
114 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
115 start_lttng_tracing_ok $SESSION_NAME
116 snapshot_add_output $SESSION_NAME "net://localhost" $name
117 lttng_snapshot_record $SESSION_NAME
118 stop_lttng_tracing_ok $SESSION_NAME
119 destroy_lttng_session_ok $SESSION_NAME
120
121 if ls $TRACE_PATH/$HOSTNAME/$name* &> /dev/null; then
122 ok 0 "Custom name snapshot exists"
123 # Validate test
124 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$name-*
125 out=$?
126 else
127 fail "No custom name snapshot found"
128 out=1
129 fi
130
131 return $out
132 }
133
134 function test_kernel_n_snapshot()
135 {
136 diag "Test kernel snapshot streaming multiple consecutive snapshot"
137 create_lttng_session_no_output $SESSION_NAME
138 enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
139 lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
140 snapshot_add_output $SESSION_NAME "net://localhost"
141
142 for i in {1..5};
143 do
144 start_lttng_tracing_ok $SESSION_NAME
145 lttng_snapshot_record $SESSION_NAME
146 stop_lttng_tracing_ok $SESSION_NAME
147 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1*
148 if [ $? -ne 0 ]; then
149 return 1
150 fi
151 set -u
152 rm -rf $TRACE_PATH/$HOSTNAME
153 set +u
154 done
155
156 destroy_lttng_session_ok $SESSION_NAME
157 return 0
158 }
159
160 plan_tests $NUM_TESTS
161
162 print_test_banner "$TEST_DESC"
163
164 if [ "$(id -u)" == "0" ]; then
165 isroot=1
166 else
167 isroot=0
168 fi
169
170 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
171 {
172 start_lttng_relayd "-o $TRACE_PATH"
173 start_lttng_sessiond
174
175 tests=( test_kernel_default_name
176 test_kernel_custom_name
177 test_kernel_default_name_with_del
178 test_kernel_n_snapshot
179 )
180
181 for fct_test in ${tests[@]};
182 do
183 SESSION_NAME=$(randstring 16 0)
184 ${fct_test}
185 if [ $? -eq 0 ]; then
186 # Only delete if successful
187 rm -rf $TRACE_PATH
188 else
189 break
190 fi
191 done
192
193 stop_lttng_sessiond
194 stop_lttng_relayd
195 }
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