[lttng-tools.git] / tests / utils / utils.sh

#!/src/bin/bash
#
# Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
#
# This library is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; version 2.1 of the License.
#
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA

SESSIOND_BIN="lttng-sessiond"
CONSUMERD_BIN="lttng-consumerd"
RELAYD_BIN="lttng-relayd"
LTTNG_BIN="lttng"
BABELTRACE_BIN="babeltrace"

# Minimal kernel version supported for session daemon tests
KERNEL_MAJOR_VERSION=2
KERNEL_MINOR_VERSION=6
KERNEL_PATCHLEVEL_VERSION=27

source $TESTDIR/utils/tap/tap.sh

function print_ok ()
{
	# Check if we are a terminal
	if [ -t 1 ]; then
		echo -e "\e[1;32mOK\e[0m"
	else
		echo -e "OK"
	fi
}

function print_fail ()
{
	# Check if we are a terminal
	if [ -t 1 ]; then
		echo -e "\e[1;31mFAIL\e[0m"
	else
		echo -e "FAIL"
	fi
}

function print_test_banner ()
{
	desc="$1"
	diag "$desc"
}

function validate_kernel_version ()
{
	kern_version=($(uname -r | awk -F. '{ printf("%d.%d.%d\n",$1,$2,$3); }' | tr '.' '\n'))
	if [ ${kern_version[0]} -gt $KERNEL_MAJOR_VERSION ]; then
		return 0
	fi
	if [ ${kern_version[1]} -gt $KERNEL_MINOR_VERSION ]; then
		return 0
	fi
	if [ ${kern_version[2]} -ge $KERNEL_PATCHLEVEL_VERSION ]; then
		return 0
	fi
	return 1
}

# Generate a random string
#  $1 = number of characters; defaults to 16
#  $2 = include special characters; 1 = yes, 0 = no; defaults to yes
function randstring()
{
	[ "$2" == "0" ] && CHAR="[:alnum:]" || CHAR="[:graph:]"
	cat /dev/urandom | tr -cd "$CHAR" | head -c ${1:-16}
	echo
}

function lttng_enable_kernel_event
{
	sess_name=$1
	event_name=$2
	channel_name=$3

	if [ -z $event_name ]; then
		# Enable all event if no event name specified
		event_name="-a"
	fi

	if [ -z $channel_name ]; then
		# default channel if none specified
		chan=""
	else
		chan="-c $channel_name"
	fi

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -k >/dev/null 2>&1
	ok $? "Enable kernel event $event_name for session $sess_name"
}

function start_lttng_relayd
{
	local opt=$1

	DIR=$(readlink -f $TESTDIR)

	if [ -z $(pidof lt-$RELAYD_BIN) ]; then
		$DIR/../src/bin/lttng-relayd/$RELAYD_BIN $opt >/dev/null 2>&1 &
		#$DIR/../src/bin/lttng-relayd/$RELAYD_BIN $opt -vvv >>/tmp/relayd.log 2>&1 &
		if [ $? -eq 1 ]; then
			fail "Start lttng-relayd (opt: $opt)"
			return 1
		else
			pass "Start lttng-relayd (opt: $opt)"
		fi
	else
		pass "Start lttng-relayd (opt: $opt)"
	fi
}

function stop_lttng_relayd
{
	PID_RELAYD=`pidof lt-$RELAYD_BIN`

	kill $PID_RELAYD >/dev/null 2>&1

	if [ $? -eq 1 ]; then
		fail "Kill lttng-relayd (pid: $PID_RELAYD)"
		return 1
	else
		out=1
		while [ -n "$out" ]; do
			out=$(pidof lt-$RELAYD_BIN)
			sleep 0.5
		done
		pass "Kill lttng-relayd (pid: $PID_RELAYD)"
		return 0
	fi
}

function start_lttng_sessiond()
{
	if [ -n $TEST_NO_SESSIOND ] && [ "$TEST_NO_SESSIOND" == "1" ]; then
		# Env variable requested no session daemon
		return
	fi

	validate_kernel_version
	if [ $? -ne 0 ]; then
	    fail "Start session daemon"
	    BAIL_OUT "*** Kernel too old for session daemon tests ***"
	fi

	DIR=$(readlink -f $TESTDIR)

	if [ -z $(pidof lt-$SESSIOND_BIN) ]; then
		$DIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --daemonize --consumerd32-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd"
		#$DIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --consumerd32-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --verbose-consumer >>/tmp/sessiond.log 2>&1 &
		status=$?
		ok $status "Start session daemon"
	fi
}

function stop_lttng_sessiond ()
{
	if [ -n $TEST_NO_SESSIOND ] && [ "$TEST_NO_SESSIOND" == "1" ]; then
		# Env variable requested no session daemon
		return
	fi

	PID_SESSIOND=`pidof lt-$SESSIOND_BIN`

	kill $PID_SESSIOND >/dev/null 2>&1

	if [ $? -eq 1 ]; then
		fail "Kill sessions daemon"
		return 1
	else
		out=1
		while [ -n "$out" ]; do
			out=$(pidof lt-$SESSIOND_BIN)
			sleep 0.5
		done
		out=1
		while [ -n "$out" ]; do
			out=$(pidof $CONSUMERD_BIN)
			sleep 0.5
		done
		pass "Kill session daemon"
	fi
}

function create_lttng_session_no_output ()
{
	sess_name=$1

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN create $sess_name --no-output >/dev/null 2>&1
	ok $? "Create session $sess_name in no-output mode"
}

function create_lttng_session ()
{
	sess_name=$1
	trace_path=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN create $sess_name -o $trace_path >/dev/null 2>&1
	ok $? "Create session $sess_name in $trace_path"
}

function enable_ust_lttng_channel()
{
	sess_name=$1
	channel_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -u $channel_name -s $sess_name >/dev/null 2>&1
	ok $? "Enable channel $channel_name for session $sess_name"
}

function disable_ust_lttng_channel()
{
	sess_name=$1
	channel_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN disable-channel -u $channel_name -s $sess_name >/dev/null 2>&1
	ok $? "Disable channel $channel_name for session $sess_name"
}

function enable_lttng_mmap_overwrite_kernel_channel()
{
	sess_name=$1
	channel_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -k --output mmap --overwrite >/dev/null 2>&1
	ok $? "Enable channel $channel_name for session $sess_name"
}

function enable_lttng_mmap_overwrite_ust_channel()
{
	sess_name=$1
	channel_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -u --output mmap --overwrite >/dev/null 2>&1
	ok $? "Enable channel $channel_name for session $sess_name"
}

function enable_ust_lttng_event ()
{
	sess_name=$1
	event_name="$2"
	channel_name=$3

	if [ -z $channel_name ]; then
		# default channel if none specified
		chan=""
	else
		chan="-c $channel_name"
	fi

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -u >/dev/null 2>&1
	ok $? "Enable event $event_name for session $sess_name"
}

function enable_jul_lttng_event()
{
	sess_name=$1
	event_name="$2"
	channel_name=$3

	if [ -z $channel_name ]; then
		# default channel if none specified
		chan=""
	else
		chan="-c $channel_name"
	fi

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -j >/dev/null 2>&1
	ok $? "Enable JUL event $event_name for session $sess_name"
}

function enable_ust_lttng_event_filter()
{
	sess_name="$1"
	event_name="$2"
	filter="$3"

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -u --filter "$filter" >/dev/null 2>&1
	ok $? "Enable event $event_name with filtering for session $sess_name"
}

function enable_ust_lttng_event_loglevel()
{
	sess_name="$1"
	event_name="$2"
	loglevel="$3"

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -u --loglevel $loglevel >/dev/null 2>&1
	ok $? "Enable event $event_name with loglevel $loglevel"
}

function enable_ust_lttng_event_loglevel_only()
{
	sess_name="$1"
	event_name="$2"
	loglevel="$3"

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -u --loglevel-only $loglevel >/dev/null 2>&1
	ok $? "Enable event $event_name with loglevel-only $loglevel"
}

function disable_ust_lttng_event ()
{
	sess_name="$1"
	event_name="$2"

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN disable-event "$event_name" -s $sess_name -u >/dev/null 2>&1
	ok $? "Disable event $event_name for session $sess_name"
}

function start_lttng_tracing ()
{
	sess_name=$1

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN start $sess_name >/dev/null 2>&1
	ok $? "Start tracing for session $sess_name"
}

function stop_lttng_tracing ()
{
	sess_name=$1

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN stop $sess_name >/dev/null 2>&1
	ok $? "Stop lttng tracing for session $sess_name"
}

function destroy_lttng_session ()
{
	sess_name=$1


	$TESTDIR/../src/bin/lttng/$LTTNG_BIN destroy $sess_name >/dev/null 2>&1
	ok $? "Destroy lttng session $sess_name"
}

function lttng_snapshot_add_output ()
{
	sess_name=$1
	trace_path=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output -s $sess_name file://$trace_path >/dev/null 2>&1
	ok $? "Added snapshot output file://$trace_path"
}

function lttng_snapshot_del_output ()
{
	local sess_name=$1
	local id=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output -s $sess_name $id >/dev/null 2>&1
	ok $? "Deleted snapshot output id $id"
}

function lttng_snapshot_record ()
{
	sess_name=$1
	trace_path=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot record -s $sess_name >/dev/null 2>&1
	ok $? "Snapshot recorded"
}

function trace_matches ()
{
	event_name=$1
	nr_iter=$2
	trace_path=$3

	which $BABELTRACE_BIN >/dev/null
	skip $? -ne 0 "Babeltrace binary not found. Skipping trace matches"

	count=$($BABELTRACE_BIN $trace_path | grep $event_name | wc -l)

	if [ "$count" -ne "$nr_iter" ]; then
		fail "Trace match"
		diag "$count events found in trace"
	else
		pass "Trace match"
	fi
}

function validate_trace
{
	event_name=$1
	trace_path=$2

	which $BABELTRACE_BIN >/dev/null
	if [ $? -ne 0 ]; then
	    skip 0 "Babeltrace binary not found. Skipping trace validation"
	fi

	OLDIFS=$IFS
	IFS=","
	for i in $event_name; do
		traced=$($BABELTRACE_BIN $trace_path 2>/dev/null | grep $i | wc -l)
		if [ "$traced" -ne 0 ]; then
			pass "Validate trace for event $i, $traced events"
		else
			fail "Validate trace for event $i"
			diag "Found $traced occurences of $i"
		fi
	done
	ret=$?
	IFS=$OLDIFS
	return $ret
}
Commit	Line	Data
	1	#!/src/bin/bash
	2	#
	3	# Copyright (C) - 2012 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
	18	SESSIOND_BIN="lttng-sessiond"
	19	CONSUMERD_BIN="lttng-consumerd"
	20	RELAYD_BIN="lttng-relayd"
	21	LTTNG_BIN="lttng"
	22	BABELTRACE_BIN="babeltrace"
	23
	24	# Minimal kernel version supported for session daemon tests
	25	KERNEL_MAJOR_VERSION=2
	26	KERNEL_MINOR_VERSION=6
	27	KERNEL_PATCHLEVEL_VERSION=27
	28
	29	source $TESTDIR/utils/tap/tap.sh
	30
	31	function print_ok ()
	32	{
	33	# Check if we are a terminal
	34	if [ -t 1 ]; then
	35	echo -e "\e[1;32mOK\e[0m"
	36	else
	37	echo -e "OK"
	38	fi
	39	}
	40
	41	function print_fail ()
	42	{
	43	# Check if we are a terminal
	44	if [ -t 1 ]; then
	45	echo -e "\e[1;31mFAIL\e[0m"
	46	else
	47	echo -e "FAIL"
	48	fi
	49	}
	50
	51	function print_test_banner ()
	52	{
	53	desc="$1"
	54	diag "$desc"
	55	}
	56
	57	function validate_kernel_version ()
	58	{
	59	kern_version=($(uname -r \| awk -F. '{ printf("%d.%d.%d\n",$1,$2,$3); }' \| tr '.' '\n'))
	60	if [ ${kern_version[0]} -gt $KERNEL_MAJOR_VERSION ]; then
	61	return 0
	62	fi
	63	if [ ${kern_version[1]} -gt $KERNEL_MINOR_VERSION ]; then
	64	return 0
	65	fi
	66	if [ ${kern_version[2]} -ge $KERNEL_PATCHLEVEL_VERSION ]; then
	67	return 0
	68	fi
	69	return 1
	70	}
	71
	72	# Generate a random string
	73	# $1 = number of characters; defaults to 16
	74	# $2 = include special characters; 1 = yes, 0 = no; defaults to yes
	75	function randstring()
	76	{
	77	[ "$2" == "0" ] && CHAR="[:alnum:]" \|\| CHAR="[:graph:]"
	78	cat /dev/urandom \| tr -cd "$CHAR" \| head -c ${1:-16}
	79	echo
	80	}
	81
	82	function lttng_enable_kernel_event
	83	{
	84	sess_name=$1
	85	event_name=$2
	86	channel_name=$3
	87
	88	if [ -z $event_name ]; then
	89	# Enable all event if no event name specified
	90	event_name="-a"
	91	fi
	92
	93	if [ -z $channel_name ]; then
	94	# default channel if none specified
	95	chan=""
	96	else
	97	chan="-c $channel_name"
	98	fi
	99
	100	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -k >/dev/null 2>&1
	101	ok $? "Enable kernel event $event_name for session $sess_name"
	102	}
	103
	104	function start_lttng_relayd
	105	{
	106	local opt=$1
	107
	108	DIR=$(readlink -f $TESTDIR)
	109
	110	if [ -z $(pidof lt-$RELAYD_BIN) ]; then
	111	$DIR/../src/bin/lttng-relayd/$RELAYD_BIN $opt >/dev/null 2>&1 &
	112	#$DIR/../src/bin/lttng-relayd/$RELAYD_BIN $opt -vvv >>/tmp/relayd.log 2>&1 &
	113	if [ $? -eq 1 ]; then
	114	fail "Start lttng-relayd (opt: $opt)"
	115	return 1
	116	else
	117	pass "Start lttng-relayd (opt: $opt)"
	118	fi
	119	else
	120	pass "Start lttng-relayd (opt: $opt)"
	121	fi
	122	}
	123
	124	function stop_lttng_relayd
	125	{
	126	PID_RELAYD=`pidof lt-$RELAYD_BIN`
	127
	128	kill $PID_RELAYD >/dev/null 2>&1
	129
	130	if [ $? -eq 1 ]; then
	131	fail "Kill lttng-relayd (pid: $PID_RELAYD)"
	132	return 1
	133	else
	134	out=1
	135	while [ -n "$out" ]; do
	136	out=$(pidof lt-$RELAYD_BIN)
	137	sleep 0.5
	138	done
	139	pass "Kill lttng-relayd (pid: $PID_RELAYD)"
	140	return 0
	141	fi
	142	}
	143
	144	function start_lttng_sessiond()
	145	{
	146	if [ -n $TEST_NO_SESSIOND ] && [ "$TEST_NO_SESSIOND" == "1" ]; then
	147	# Env variable requested no session daemon
	148	return
	149	fi
	150
	151	validate_kernel_version
	152	if [ $? -ne 0 ]; then
	153	fail "Start session daemon"
	154	BAIL_OUT "* Kernel too old for session daemon tests *"
	155	fi
	156
	157	DIR=$(readlink -f $TESTDIR)
	158
	159	if [ -z $(pidof lt-$SESSIOND_BIN) ]; then
	160	$DIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --daemonize --consumerd32-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd"
	161	#$DIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --consumerd32-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --verbose-consumer >>/tmp/sessiond.log 2>&1 &
	162	status=$?
	163	ok $status "Start session daemon"
	164	fi
	165	}
	166
	167	function stop_lttng_sessiond ()
	168	{
	169	if [ -n $TEST_NO_SESSIOND ] && [ "$TEST_NO_SESSIOND" == "1" ]; then
	170	# Env variable requested no session daemon
	171	return
	172	fi
	173
	174	PID_SESSIOND=`pidof lt-$SESSIOND_BIN`
	175
	176	kill $PID_SESSIOND >/dev/null 2>&1
	177
	178	if [ $? -eq 1 ]; then
	179	fail "Kill sessions daemon"
	180	return 1
	181	else
	182	out=1
	183	while [ -n "$out" ]; do
	184	out=$(pidof lt-$SESSIOND_BIN)
	185	sleep 0.5
	186	done
	187	out=1
	188	while [ -n "$out" ]; do
	189	out=$(pidof $CONSUMERD_BIN)
	190	sleep 0.5
	191	done
	192	pass "Kill session daemon"
	193	fi
	194	}
	195
	196	function create_lttng_session_no_output ()
	197	{
	198	sess_name=$1
	199
	200	$TESTDIR/../src/bin/lttng/$LTTNG_BIN create $sess_name --no-output >/dev/null 2>&1
	201	ok $? "Create session $sess_name in no-output mode"
	202	}
	203
	204	function create_lttng_session ()
	205	{
	206	sess_name=$1
	207	trace_path=$2
	208
	209	$TESTDIR/../src/bin/lttng/$LTTNG_BIN create $sess_name -o $trace_path >/dev/null 2>&1
	210	ok $? "Create session $sess_name in $trace_path"
	211	}
	212
	213	function enable_ust_lttng_channel()
	214	{
	215	sess_name=$1
	216	channel_name=$2
	217
	218	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -u $channel_name -s $sess_name >/dev/null 2>&1
	219	ok $? "Enable channel $channel_name for session $sess_name"
	220	}
	221
	222	function disable_ust_lttng_channel()
	223	{
	224	sess_name=$1
	225	channel_name=$2
	226
	227	$TESTDIR/../src/bin/lttng/$LTTNG_BIN disable-channel -u $channel_name -s $sess_name >/dev/null 2>&1
	228	ok $? "Disable channel $channel_name for session $sess_name"
	229	}
	230
	231	function enable_lttng_mmap_overwrite_kernel_channel()
	232	{
	233	sess_name=$1
	234	channel_name=$2
	235
	236	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -k --output mmap --overwrite >/dev/null 2>&1
	237	ok $? "Enable channel $channel_name for session $sess_name"
	238	}
	239
	240	function enable_lttng_mmap_overwrite_ust_channel()
	241	{
	242	sess_name=$1
	243	channel_name=$2
	244
	245	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -u --output mmap --overwrite >/dev/null 2>&1
	246	ok $? "Enable channel $channel_name for session $sess_name"
	247	}
	248
	249	function enable_ust_lttng_event ()
	250	{
	251	sess_name=$1
	252	event_name="$2"
	253	channel_name=$3
	254
	255	if [ -z $channel_name ]; then
	256	# default channel if none specified
	257	chan=""
	258	else
	259	chan="-c $channel_name"
	260	fi
	261
	262	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -u >/dev/null 2>&1
	263	ok $? "Enable event $event_name for session $sess_name"
	264	}
	265
	266	function enable_jul_lttng_event()
	267	{
	268	sess_name=$1
	269	event_name="$2"
	270	channel_name=$3
	271
	272	if [ -z $channel_name ]; then
	273	# default channel if none specified
	274	chan=""
	275	else
	276	chan="-c $channel_name"
	277	fi
	278
	279	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -j >/dev/null 2>&1
	280	ok $? "Enable JUL event $event_name for session $sess_name"
	281	}
	282
	283	function enable_ust_lttng_event_filter()
	284	{
	285	sess_name="$1"
	286	event_name="$2"
	287	filter="$3"
	288
	289	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -u --filter "$filter" >/dev/null 2>&1
	290	ok $? "Enable event $event_name with filtering for session $sess_name"
	291	}
	292
	293	function enable_ust_lttng_event_loglevel()
	294	{
	295	sess_name="$1"
	296	event_name="$2"
	297	loglevel="$3"
	298
	299	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -u --loglevel $loglevel >/dev/null 2>&1
	300	ok $? "Enable event $event_name with loglevel $loglevel"
	301	}
	302
	303	function enable_ust_lttng_event_loglevel_only()
	304	{
	305	sess_name="$1"
	306	event_name="$2"
	307	loglevel="$3"
	308
	309	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -u --loglevel-only $loglevel >/dev/null 2>&1
	310	ok $? "Enable event $event_name with loglevel-only $loglevel"
	311	}
	312
	313	function disable_ust_lttng_event ()
	314	{
	315	sess_name="$1"
	316	event_name="$2"
	317
	318	$TESTDIR/../src/bin/lttng/$LTTNG_BIN disable-event "$event_name" -s $sess_name -u >/dev/null 2>&1
	319	ok $? "Disable event $event_name for session $sess_name"
	320	}
	321
	322	function start_lttng_tracing ()
	323	{
	324	sess_name=$1
	325
	326	$TESTDIR/../src/bin/lttng/$LTTNG_BIN start $sess_name >/dev/null 2>&1
	327	ok $? "Start tracing for session $sess_name"
	328	}
	329
	330	function stop_lttng_tracing ()
	331	{
	332	sess_name=$1
	333
	334	$TESTDIR/../src/bin/lttng/$LTTNG_BIN stop $sess_name >/dev/null 2>&1
	335	ok $? "Stop lttng tracing for session $sess_name"
	336	}
	337
	338	function destroy_lttng_session ()
	339	{
	340	sess_name=$1
	341
	342
	343	$TESTDIR/../src/bin/lttng/$LTTNG_BIN destroy $sess_name >/dev/null 2>&1
	344	ok $? "Destroy lttng session $sess_name"
	345	}
	346
	347	function lttng_snapshot_add_output ()
	348	{
	349	sess_name=$1
	350	trace_path=$2
	351
	352	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output -s $sess_name file://$trace_path >/dev/null 2>&1
	353	ok $? "Added snapshot output file://$trace_path"
	354	}
	355
	356	function lttng_snapshot_del_output ()
	357	{
	358	local sess_name=$1
	359	local id=$2
	360
	361	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output -s $sess_name $id >/dev/null 2>&1
	362	ok $? "Deleted snapshot output id $id"
	363	}
	364
	365	function lttng_snapshot_record ()
	366	{
	367	sess_name=$1
	368	trace_path=$2
	369
	370	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot record -s $sess_name >/dev/null 2>&1
	371	ok $? "Snapshot recorded"
	372	}
	373
	374	function trace_matches ()
	375	{
	376	event_name=$1
	377	nr_iter=$2
	378	trace_path=$3
	379
	380	which $BABELTRACE_BIN >/dev/null
	381	skip $? -ne 0 "Babeltrace binary not found. Skipping trace matches"
	382
	383	count=$($BABELTRACE_BIN $trace_path \| grep $event_name \| wc -l)
	384
	385	if [ "$count" -ne "$nr_iter" ]; then
	386	fail "Trace match"
	387	diag "$count events found in trace"
	388	else
	389	pass "Trace match"
	390	fi
	391	}
	392
	393	function validate_trace
	394	{
	395	event_name=$1
	396	trace_path=$2
	397
	398	which $BABELTRACE_BIN >/dev/null
	399	if [ $? -ne 0 ]; then
	400	skip 0 "Babeltrace binary not found. Skipping trace validation"
	401	fi
	402
	403	OLDIFS=$IFS
	404	IFS=","
	405	for i in $event_name; do
	406	traced=$($BABELTRACE_BIN $trace_path 2>/dev/null \| grep $i \| wc -l)
	407	if [ "$traced" -ne 0 ]; then
	408	pass "Validate trace for event $i, $traced events"
	409	else
	410	fail "Validate trace for event $i"
	411	diag "Found $traced occurences of $i"
	412	fi
	413	done
	414	ret=$?
	415	IFS=$OLDIFS
	416	return $ret
	417	}