[lttng-tools.git] / tests / regression / tools / notification / test_notification_multi_app

#!/bin/bash
#
# Copyright (C) 2017 Jonathan Rajotte <jonathan.rajotte-julien@efficiso.com>>
#
# SPDX-License-Identifier: LGPL-2.1-only

TEST_DESC="Notification"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../../

TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)

TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
TESTAPP_STATE_FILE="$(mktemp -u)"

NR_ITER=1000
NR_USEC_WAIT=5

SESSION_NAME="my_session"
CHANNEL_NAME="my_channel"


DIR=$(readlink -f $TESTDIR)

PAGE_SIZE=$(getconf PAGE_SIZE)

NUM_TEST_UST=50
NUM_TEST_KERNEL=50
NUM_TESTS=$(($NUM_TEST_UST + $NUM_TEST_KERNEL))

source $TESTDIR/utils/utils.sh
source $CURDIR/util_event_generator.sh

consumerd_pipe=()
file_sync_after_first_event=$(mktemp -u)

# MUST set TESTDIR before calling those functions
plan_tests $NUM_TESTS

print_test_banner "$TEST_DESC"

app_pids=()

function start_client {
	local pid=-1
	local output_file=$1
	local session_name=$2
	local channel_name=$3
	local domain_type=$4
	local buffer_usage_type=$5
	local buffer_usage_threshold_type=$6
	local buffer_usage_threshold_value=$7
	local nr_expected_notification=$8

	${CURDIR}/base_client ${session_name} ${channel_name} ${domain_type} ${buffer_usage_type} ${buffer_usage_threshold_type} ${buffer_usage_threshold_value} ${nr_expected_notification} > ${output_file} &
	pid=$!

	app_pids+=("$pid")
}

function wait_for_message ()
{
	local directory=$1
	local file_pattern=$2
	local message=$3

	for file in $directory/${file_pattern}*; do
		while(true); do
			# Check for "error" message
			grep -q "error:" ${file}
			app_error=$?
			if [ $app_error -eq "0" ] ; then
				# An error occurred
				fail "Waiting message: error logged see file content: ${message}, ${file}"
				return 1
			fi

			grep -q "${message}" ${file}
			if [[ "$?" -ne "0" ]]; then
				# Lookup failed restart loop
				diag "Lookup failed sleep and retry grep for: ${message}, ${file}"
				sleep 0.25
				continue
			fi
			break
		done
	done
	pass "Message received: ${message}"
	return 0
}

function print_errors ()
{
	local directory=$1
	local file_pattern=$2

	for file in $directory/${file_pattern}*; do
		# Check for "error" message
		error_message=$(grep "error:" ${file})
		if [[ "${error_message}x" != "x" ]]; then
			diag "Errors for application ${file}:"
			diag "${error_message}"
		fi
	done
}

function comm_consumerd ()
{
	local message=$1
	local pipe=$2
	echo -ne "${message}" > "${pipe}"
}

function stop_consumerd ()
{
	local pipe=$1
	comm_consumerd "1" "$pipe"
}

function resume_consumerd ()
{
	local pipe=$1
	comm_consumerd "\0" "$pipe"
}

function test_multi_app ()
{
	local domain_type=$1
	local event_generator_pid=$2

	local app_pids=()
	local low_output_file_pattern="low_app_output_file_"
	local high_output_file_pattern="high_app_output_file_"
	local output_dir=$(mktemp -d)

	local testpoint_base_path=$(readlink -f "$output_dir/lttng.t_p_n_multi_app")
	local testpoint_pipe_path=$(mktemp -u "${testpoint_base_path}.XXXXXX")

	local nr_notification_expected=5
	local nr_client_app=50
	local domain_string=""
	local event_name=""

	case $domain_type in
		ust)
			domain_string=LTTNG_DOMAIN_UST
			event_name="tp:tptest"
			;;
		kernel)
			domain_string=LTTNG_DOMAIN_KERNEL
			event_name="lttng_test_filter_event"
			;;
		*)
			fail "Invalid domain type"
			exit 1
			;;
	esac

	# Setup
	LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${testpoint_pipe_path} LD_PRELOAD=${TESTPOINT}"
	start_lttng_sessiond

	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
	enable_${domain_type}_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
	enable_${domain_type}_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME

	# Fetch consumerd testpoint pipe information
	# This is needed since the testpoint create a pipe with the consumer type suffixed
	consumerd_pipe=()
	for f in "$testpoint_pipe_path"*; do
		consumerd_pipe+=("$f")
	done

	for (( i = 0; i < $nr_client_app; i++ )); do
		low_app_output_file=$output_dir/${low_output_file_pattern}${i}
		high_app_output_file=$output_dir/${high_output_file_pattern}${i}
		start_client $low_app_output_file $SESSION_NAME $CHANNEL_NAME $domain_string LOW RATIO 0.0 $nr_notification_expected
		start_client $high_app_output_file $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 $nr_notification_expected
	done

	wait_for_message $output_dir "${low_output_file_pattern}" "sync: ready"
	wait_for_message $output_dir "${high_output_file_pattern}" "sync: ready"

	# Test notification reception
	for (( i = 0; i < $nr_notification_expected; i++ )); do

		# Stop consumerd consumption to force high notification
		start_lttng_tracing_ok $SESSION_NAME
		for pipe in "${consumerd_pipe[@]}"; do
			stop_consumerd "${pipe}"
		done

		wait_for_message $output_dir "${high_output_file_pattern}" "notification: high $i"

		# Put application in suspend mode to prevent double low
		# notification and synchronize on state file.
		kill -s SIGUSR1 $event_generator_pid
		while [ ! -f "${TESTAPP_STATE_FILE}" ]; do
			sleep 0.5
		done

		# Resume consumerd
		for pipe in "${consumerd_pipe[@]}"; do
			resume_consumerd "${pipe}"
		done
		# Stop tracing forcing full buffer consumption
		stop_lttng_tracing_ok $SESSION_NAME

		# Check for notifications reception
		wait_for_message $output_dir "${low_output_file_pattern}" "notification: low $i"
		ret=$?
		ok $ret "Notifications $i received"
		if [[ $ret -ne "0" ]]; then
			# Error occurred bail out
			break;
		fi

		# Put application in active mode and synchronize on state file.
		kill -s SIGUSR1 $event_generator_pid
		while [ -f "${TESTAPP_STATE_FILE}" ]; do
			sleep 0.5
		done
	done

	wait_for_message $output_dir "${low_output_file_pattern}" "exit: 0"
	ret=$?
	ok $ret "Application for low notification terminated normally"
	if [[ $ret -ne "0" ]]; then
		print_errors $output_dir "${low_output_file_pattern}"
	fi

	wait_for_message $output_dir "${high_output_file_pattern}" "exit: 0"
	ret=$?
	ok $ret "Application for high notification terminated normally"
	if [[ $ret -ne "0" ]]; then
		print_errors $output_dir "${high_output_file_pattern}"
	fi


	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	for pipe in "${consumerd_pipe[@]}"; do
		rm -rf "${pipe}"
	done

	rm -rf $output_dir
}

function test_multi_app_ust ()
{
	diag "Multi client app UST notification"
	ust_event_generator "$TESTAPP_BIN" "$TESTAPP_STATE_FILE" &
	local generator_pid=$!

	test_multi_app ust $generator_pid

	kill -s SIGUSR2 $generator_pid 2> /dev/null
	wait $generator_pid 2> /dev/null
	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
}

function test_multi_app_kernel ()
{
	diag "Multi client app kernel notification"
	modprobe lttng-test

	kernel_event_generator generate_filter_events $TESTAPP_STATE_FILE &
	local generator_pid=$!

	test_multi_app kernel $generator_pid


	kill -s SIGUSR2 $generator_pid 2> /dev/null
	wait $generator_pid 2> /dev/null
	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null

	modprobe --remove lttng-test
}

function test_on_register_evaluation_ust ()
{
	diag "On register notification UST"

	# Start app in infinite loop
	ust_event_generator "$TESTAPP_BIN" "$TESTAPP_STATE_FILE" &
	local generator_pid=$!

	test_on_register_evaluation ust $generator_pid

	kill -s SIGUSR2 $generator_pid 2> /dev/null
	wait $generator_pid 2> /dev/null
	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null

}

function test_on_register_evaluation_kernel()
{
	diag "On register notification kernel"

	modprobe lttng-test

	kernel_event_generator generate_filter_events $TESTAPP_STATE_FILE &
	local generator_pid=$!

	test_on_register_evaluation kernel $generator_pid


	kill -s SIGUSR2 $generator_pid 2> /dev/null
	wait $generator_pid 2> /dev/null
	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null

	modprobe --remove lttng-test
}

function test_on_register_evaluation ()
{
	local domain_type=$1
	local event_generator_pid=$2

	local app_pids=()
	local high_output_file_pattern="high_app_output_file_on_register_evaluation"

	local output_dir=$(mktemp -d)
	local testpoint_base_path=$(readlink -f "$output_dir/lttng.t_p_n_register_evaluation")
	local testpoint_pipe_path=$(mktemp -u "${testpoint_base_path}.XXXXXX")
	local domain_string=""
	local event_name=""

	case $domain_type in
		ust)
			domain_string=LTTNG_DOMAIN_UST
			event_name="tp:tptest"
			;;
		kernel)
			domain_string=LTTNG_DOMAIN_KERNEL
			event_name="lttng_test_filter_event"
			;;
		*)
			fail "Invalid domain type"
			exit 1
			;;
	esac

	# Setup
	LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${testpoint_pipe_path} LD_PRELOAD=${TESTPOINT}"
	start_lttng_sessiond

	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
	enable_${domain_type}_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
	enable_${domain_type}_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME

	# Fetch consumerd testpoint pipe information
	# This is needed since the testpoint create a pipe with the consumer type suffixed
	consumerd_pipe=()
	for f in "$testpoint_pipe_path"*; do
		consumerd_pipe+=("$f")
	done

	high_app_output_file=${high_output_file_pattern}.first_receiver
	high_app_output_path=$output_dir/${high_app_output_file}
	start_client $high_app_output_path $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 1

	wait_for_message $output_dir "${high_app_output_file}" "sync: ready"

	# Stop consumerd consumption to force high notification
	start_lttng_tracing_ok $SESSION_NAME

	for pipe in "${consumerd_pipe[@]}"; do
		stop_consumerd "${pipe}"
	done

	wait_for_message $output_dir "${high_app_output_file}" "notification: high 0"

	# Start a second receiver, the receiver should receive a high
	# notification on subscription
	high_app_output_file=${high_output_file_pattern}.second_receiver
	high_app_output_path=$output_dir/${high_app_output_file}
	start_client $high_app_output_path $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 1
	wait_for_message $output_dir "${high_app_output_file}" "sync: ready"
	wait_for_message $output_dir "${high_app_output_file}" "notification: high 0"

	# Resume consumerd
	for pipe in "${consumerd_pipe[@]}"; do
		resume_consumerd "${pipe}"
	done

	wait_for_message $output_dir "${high_output_file_pattern}" "exit: 0"
	ret=$?
	ok $ret "Application for high notification terminated normally"
	if [[ $ret -ne "0" ]]; then
		# Keep the file
		print_errors "${high_output_file_pattern}"
	fi


	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	kill -s SIGUSR2 $generator_pid 2> /dev/null
	wait $generator_pid 2> /dev/null

	for pipe in "${consumerd_pipe[@]}"; do
		rm -rf "${pipe}"
	done

	rm -rf "$output_dir"
}


TESTS=(
	test_multi_app_ust
	test_on_register_evaluation_ust
)

if [ "$(id -u)" == "0" ]; then
	validate_lttng_modules_present
	TESTS+=(
	test_multi_app_kernel
	test_on_register_evaluation_kernel
)
else
        skip 0 "Root access is needed. Skipping all kernel multi-app notification tests." $NUM_TEST_KERNEL
fi


for fct_test in ${TESTS[@]};
do
	TRACE_PATH=$(mktemp -d)

	${fct_test}
	if [ $? -ne 0 ]; then
		break;
	fi

	# Only delete if successful
	rm -rf $TRACE_PATH
done
Commit	Line	Data
434f8068 JR	1	#!/bin/bash
434f8068 JR	2	#
9d16b343	3	# Copyright (C) 2017 Jonathan Rajotte <jonathan.rajotte-julien@efficiso.com>>
434f8068	4	#
9d16b343	5	# SPDX-License-Identifier: LGPL-2.1-only
434f8068 JR	6
	7	TEST_DESC="Notification"
	8
	9	CURDIR=$(dirname $0)/
	10	TESTDIR=$CURDIR/../../../
	11
434f8068 JR	12	TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)
	13
	14	TESTAPP_PATH="$TESTDIR/utils/testapp"
	15	TESTAPP_NAME="gen-ust-events"
	16	TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
854382b8	17	TESTAPP_STATE_FILE="$(mktemp -u)"
434f8068	18
854382b8	19	NR_ITER=1000
434f8068 JR	20	NR_USEC_WAIT=5
	21
	22	SESSION_NAME="my_session"
854382b8	23	CHANNEL_NAME="my_channel"
434f8068	24
434f8068	25
434f8068 JR	26	DIR=$(readlink -f $TESTDIR)
434f8068 JR	27
1bd26228 JG	28	PAGE_SIZE=$(getconf PAGE_SIZE)
1bd26228 JG	29
854382b8 JR	30	NUM_TEST_UST=50
	31	NUM_TEST_KERNEL=50
	32	NUM_TESTS=$(($NUM_TEST_UST + $NUM_TEST_KERNEL))
434f8068 JR	33
434f8068 JR	34	source $TESTDIR/utils/utils.sh
25cb2044	35	source $CURDIR/util_event_generator.sh
434f8068 JR	36
	37	consumerd_pipe=()
	38	file_sync_after_first_event=$(mktemp -u)
	39
	40	# MUST set TESTDIR before calling those functions
	41	plan_tests $NUM_TESTS
	42
	43	print_test_banner "$TEST_DESC"
	44
	45	app_pids=()
867313e2	46
434f8068 JR	47	function start_client {
	48	local pid=-1
	49	local output_file=$1
	50	local session_name=$2
	51	local channel_name=$3
	52	local domain_type=$4
	53	local buffer_usage_type=$5
	54	local buffer_usage_threshold_type=$6
	55	local buffer_usage_threshold_value=$7
	56	local nr_expected_notification=$8
	57
	58	${CURDIR}/base_client ${session_name} ${channel_name} ${domain_type} ${buffer_usage_type} ${buffer_usage_threshold_type} ${buffer_usage_threshold_value} ${nr_expected_notification} > ${output_file} &
	59	pid=$!
	60
	61	app_pids+=("$pid")
	62	}
	63
	64	function wait_for_message ()
	65	{
345ed219 JR	66	local directory=$1
	67	local file_pattern=$2
	68	local message=$3
434f8068	69
345ed219	70	for file in $directory/${file_pattern}*; do
434f8068 JR	71	while(true); do
	72	# Check for "error" message
	73	grep -q "error:" ${file}
	74	app_error=$?
	75	if [ $app_error -eq "0" ] ; then
	76	# An error occurred
	77	fail "Waiting message: error logged see file content: ${message}, ${file}"
	78	return 1
	79	fi
	80
	81	grep -q "${message}" ${file}
	82	if [[ "$?" -ne "0" ]]; then
	83	# Lookup failed restart loop
	84	diag "Lookup failed sleep and retry grep for: ${message}, ${file}"
	85	sleep 0.25
	86	continue
	87	fi
	88	break
	89	done
	90	done
	91	pass "Message received: ${message}"
	92	return 0
	93	}
	94
	95	function print_errors ()
	96	{
345ed219 JR	97	local directory=$1
345ed219 JR	98	local file_pattern=$2
434f8068	99
345ed219	100	for file in $directory/${file_pattern}*; do
434f8068 JR	101	# Check for "error" message
434f8068 JR	102	error_message=$(grep "error:" ${file})
867313e2	103	if [[ "${error_message}x" != "x" ]]; then
434f8068 JR	104	diag "Errors for application ${file}:"
	105	diag "${error_message}"
	106	fi
	107	done
	108	}
	109
	110	function comm_consumerd ()
	111	{
	112	local message=$1
	113	local pipe=$2
	114	echo -ne "${message}" > "${pipe}"
434f8068 JR	115	}
	116
	117	function stop_consumerd ()
	118	{
	119	local pipe=$1
	120	comm_consumerd "1" "$pipe"
434f8068 JR	121	}
	122
	123	function resume_consumerd ()
	124	{
	125	local pipe=$1
	126	comm_consumerd "\0" "$pipe"
434f8068 JR	127	}
	128
	129	function test_multi_app ()
	130	{
854382b8 JR	131	local domain_type=$1
	132	local event_generator_pid=$2
	133
434f8068 JR	134	local app_pids=()
	135	local low_output_file_pattern="low_app_output_file_"
	136	local high_output_file_pattern="high_app_output_file_"
345ed219	137	local output_dir=$(mktemp -d)
434f8068	138
345ed219	139	local testpoint_base_path=$(readlink -f "$output_dir/lttng.t_p_n_multi_app")
6a1eee92 JR	140	local testpoint_pipe_path=$(mktemp -u "${testpoint_base_path}.XXXXXX")
	141
	142	local nr_notification_expected=5
	143	local nr_client_app=50
854382b8 JR	144	local domain_string=""
	145	local event_name=""
	146
	147	case $domain_type in
	148	ust)
	149	domain_string=LTTNG_DOMAIN_UST
	150	event_name="tp:tptest"
	151	;;
	152	kernel)
	153	domain_string=LTTNG_DOMAIN_KERNEL
	154	event_name="lttng_test_filter_event"
	155	;;
	156	*)
	157	fail "Invalid domain type"
	158	exit 1
	159	;;
	160	esac
6a1eee92	161
434f8068	162	# Setup
6a1eee92	163	LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${testpoint_pipe_path} LD_PRELOAD=${TESTPOINT}"
434f8068 JR	164	start_lttng_sessiond
434f8068 JR	165
434f8068	166	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
854382b8 JR	167	enable_${domain_type}_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
854382b8 JR	168	enable_${domain_type}_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME
434f8068 JR	169
	170	# Fetch consumerd testpoint pipe information
	171	# This is needed since the testpoint create a pipe with the consumer type suffixed
345ed219 JR	172	consumerd_pipe=()
345ed219 JR	173	for f in "$testpoint_pipe_path"*; do
434f8068 JR	174	consumerd_pipe+=("$f")
	175	done
	176
6a1eee92	177	for (( i = 0; i < $nr_client_app; i++ )); do
345ed219 JR	178	low_app_output_file=$output_dir/${low_output_file_pattern}${i}
345ed219 JR	179	high_app_output_file=$output_dir/${high_output_file_pattern}${i}
854382b8 JR	180	start_client $low_app_output_file $SESSION_NAME $CHANNEL_NAME $domain_string LOW RATIO 0.0 $nr_notification_expected
854382b8 JR	181	start_client $high_app_output_file $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 $nr_notification_expected
434f8068 JR	182	done
434f8068 JR	183
345ed219 JR	184	wait_for_message $output_dir "${low_output_file_pattern}" "sync: ready"
345ed219 JR	185	wait_for_message $output_dir "${high_output_file_pattern}" "sync: ready"
434f8068 JR	186
434f8068 JR	187	# Test notification reception
6a1eee92	188	for (( i = 0; i < $nr_notification_expected; i++ )); do
434f8068 JR	189
	190	# Stop consumerd consumption to force high notification
	191	start_lttng_tracing_ok $SESSION_NAME
	192	for pipe in "${consumerd_pipe[@]}"; do
	193	stop_consumerd "${pipe}"
	194	done
	195
345ed219	196	wait_for_message $output_dir "${high_output_file_pattern}" "notification: high $i"
434f8068	197
854382b8 JR	198	# Put application in suspend mode to prevent double low
	199	# notification and synchronize on state file.
	200	kill -s SIGUSR1 $event_generator_pid
	201	while [ ! -f "${TESTAPP_STATE_FILE}" ]; do
	202	sleep 0.5
	203	done
	204
434f8068 JR	205	# Resume consumerd
	206	for pipe in "${consumerd_pipe[@]}"; do
	207	resume_consumerd "${pipe}"
	208	done
	209	# Stop tracing forcing full buffer consumption
7fe98a98	210	stop_lttng_tracing_ok $SESSION_NAME
434f8068 JR	211
434f8068 JR	212	# Check for notifications reception
345ed219	213	wait_for_message $output_dir "${low_output_file_pattern}" "notification: low $i"
434f8068 JR	214	ret=$?
	215	ok $ret "Notifications $i received"
	216	if [[ $ret -ne "0" ]]; then
	217	# Error occurred bail out
	218	break;
	219	fi
854382b8 JR	220
	221	# Put application in active mode and synchronize on state file.
	222	kill -s SIGUSR1 $event_generator_pid
	223	while [ -f "${TESTAPP_STATE_FILE}" ]; do
	224	sleep 0.5
	225	done
434f8068 JR	226	done
434f8068 JR	227
345ed219	228	wait_for_message $output_dir "${low_output_file_pattern}" "exit: 0"
434f8068 JR	229	ret=$?
434f8068 JR	230	ok $ret "Application for low notification terminated normally"
345ed219 JR	231	if [[ $ret -ne "0" ]]; then
345ed219 JR	232	print_errors $output_dir "${low_output_file_pattern}"
434f8068 JR	233	fi
434f8068 JR	234
345ed219	235	wait_for_message $output_dir "${high_output_file_pattern}" "exit: 0"
434f8068 JR	236	ret=$?
434f8068 JR	237	ok $ret "Application for high notification terminated normally"
345ed219 JR	238	if [[ $ret -ne "0" ]]; then
345ed219 JR	239	print_errors $output_dir "${high_output_file_pattern}"
434f8068 JR	240	fi
434f8068 JR	241
345ed219	242
854382b8	243	destroy_lttng_session_ok $SESSION_NAME
434f8068	244	stop_lttng_sessiond
854382b8 JR	245
	246	for pipe in "${consumerd_pipe[@]}"; do
	247	rm -rf "${pipe}"
	248	done
81665716 JR	249
81665716 JR	250	rm -rf $output_dir
854382b8 JR	251	}
	252
	253	function test_multi_app_ust ()
	254	{
	255	diag "Multi client app UST notification"
25cb2044	256	ust_event_generator "$TESTAPP_BIN" "$TESTAPP_STATE_FILE" &
854382b8 JR	257	local generator_pid=$!
	258
	259	test_multi_app ust $generator_pid
	260
25cb2044	261	kill -s SIGUSR2 $generator_pid 2> /dev/null
854382b8 JR	262	wait $generator_pid 2> /dev/null
	263	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
	264	}
	265
	266	function test_multi_app_kernel ()
	267	{
	268	diag "Multi client app kernel notification"
	269	modprobe lttng-test
	270
25cb2044	271	kernel_event_generator generate_filter_events $TESTAPP_STATE_FILE &
854382b8 JR	272	local generator_pid=$!
	273
	274	test_multi_app kernel $generator_pid
	275
	276
25cb2044	277	kill -s SIGUSR2 $generator_pid 2> /dev/null
854382b8 JR	278	wait $generator_pid 2> /dev/null
	279	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
	280
d0e263e7	281	modprobe --remove lttng-test
854382b8 JR	282	}
	283
	284	function test_on_register_evaluation_ust ()
	285	{
	286	diag "On register notification UST"
	287
	288	# Start app in infinite loop
25cb2044	289	ust_event_generator "$TESTAPP_BIN" "$TESTAPP_STATE_FILE" &
854382b8 JR	290	local generator_pid=$!
	291
	292	test_on_register_evaluation ust $generator_pid
	293
25cb2044	294	kill -s SIGUSR2 $generator_pid 2> /dev/null
854382b8 JR	295	wait $generator_pid 2> /dev/null
	296	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
	297
	298	}
	299
	300	function test_on_register_evaluation_kernel()
	301	{
	302	diag "On register notification kernel"
	303
	304	modprobe lttng-test
	305
25cb2044	306	kernel_event_generator generate_filter_events $TESTAPP_STATE_FILE &
854382b8 JR	307	local generator_pid=$!
	308
	309	test_on_register_evaluation kernel $generator_pid
	310
	311
25cb2044	312	kill -s SIGUSR2 $generator_pid 2> /dev/null
854382b8 JR	313	wait $generator_pid 2> /dev/null
	314	rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
	315
d0e263e7	316	modprobe --remove lttng-test
434f8068 JR	317	}
434f8068 JR	318
867313e2 JR	319	function test_on_register_evaluation ()
867313e2 JR	320	{
854382b8 JR	321	local domain_type=$1
	322	local event_generator_pid=$2
	323
867313e2 JR	324	local app_pids=()
	325	local high_output_file_pattern="high_app_output_file_on_register_evaluation"
	326
345ed219 JR	327	local output_dir=$(mktemp -d)
345ed219 JR	328	local testpoint_base_path=$(readlink -f "$output_dir/lttng.t_p_n_register_evaluation")
867313e2	329	local testpoint_pipe_path=$(mktemp -u "${testpoint_base_path}.XXXXXX")
854382b8 JR	330	local domain_string=""
854382b8 JR	331	local event_name=""
867313e2	332
854382b8 JR	333	case $domain_type in
	334	ust)
	335	domain_string=LTTNG_DOMAIN_UST
	336	event_name="tp:tptest"
	337	;;
	338	kernel)
	339	domain_string=LTTNG_DOMAIN_KERNEL
	340	event_name="lttng_test_filter_event"
	341	;;
	342	*)
	343	fail "Invalid domain type"
	344	exit 1
	345	;;
	346	esac
	347
867313e2 JR	348	# Setup
	349	LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${testpoint_pipe_path} LD_PRELOAD=${TESTPOINT}"
	350	start_lttng_sessiond
	351
867313e2	352	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
854382b8 JR	353	enable_${domain_type}_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
854382b8 JR	354	enable_${domain_type}_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME
867313e2 JR	355
	356	# Fetch consumerd testpoint pipe information
	357	# This is needed since the testpoint create a pipe with the consumer type suffixed
345ed219 JR	358	consumerd_pipe=()
345ed219 JR	359	for f in "$testpoint_pipe_path"*; do
867313e2 JR	360	consumerd_pipe+=("$f")
	361	done
	362
	363	high_app_output_file=${high_output_file_pattern}.first_receiver
345ed219	364	high_app_output_path=$output_dir/${high_app_output_file}
854382b8	365	start_client $high_app_output_path $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 1
867313e2	366
345ed219	367	wait_for_message $output_dir "${high_app_output_file}" "sync: ready"
867313e2 JR	368
	369	# Stop consumerd consumption to force high notification
	370	start_lttng_tracing_ok $SESSION_NAME
	371
	372	for pipe in "${consumerd_pipe[@]}"; do
	373	stop_consumerd "${pipe}"
	374	done
	375
345ed219	376	wait_for_message $output_dir "${high_app_output_file}" "notification: high 0"
867313e2 JR	377
	378	# Start a second receiver, the receiver should receive a high
	379	# notification on subscription
	380	high_app_output_file=${high_output_file_pattern}.second_receiver
345ed219	381	high_app_output_path=$output_dir/${high_app_output_file}
854382b8	382	start_client $high_app_output_path $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 1
345ed219 JR	383	wait_for_message $output_dir "${high_app_output_file}" "sync: ready"
345ed219 JR	384	wait_for_message $output_dir "${high_app_output_file}" "notification: high 0"
867313e2 JR	385
	386	# Resume consumerd
	387	for pipe in "${consumerd_pipe[@]}"; do
	388	resume_consumerd "${pipe}"
	389	done
	390
345ed219	391	wait_for_message $output_dir "${high_output_file_pattern}" "exit: 0"
867313e2 JR	392	ret=$?
867313e2 JR	393	ok $ret "Application for high notification terminated normally"
345ed219	394	if [[ $ret -ne "0" ]]; then
867313e2 JR	395	# Keep the file
	396	print_errors "${high_output_file_pattern}"
	397	fi
	398
345ed219	399
854382b8	400	destroy_lttng_session_ok $SESSION_NAME
867313e2 JR	401	stop_lttng_sessiond
867313e2 JR	402
25cb2044	403	kill -s SIGUSR2 $generator_pid 2> /dev/null
854382b8 JR	404	wait $generator_pid 2> /dev/null
	405
	406	for pipe in "${consumerd_pipe[@]}"; do
	407	rm -rf "${pipe}"
	408	done
	409
81665716	410	rm -rf "$output_dir"
867313e2 JR	411	}
867313e2 JR	412
434f8068 JR	413
434f8068 JR	414	TESTS=(
854382b8 JR	415	test_multi_app_ust
854382b8 JR	416	test_on_register_evaluation_ust
434f8068 JR	417	)
434f8068 JR	418
854382b8	419	if [ "$(id -u)" == "0" ]; then
fb180e6e	420	validate_lttng_modules_present
854382b8 JR	421	TESTS+=(
	422	test_multi_app_kernel
	423	test_on_register_evaluation_kernel
	424	)
	425	else
	426	skip 0 "Root access is needed. Skipping all kernel multi-app notification tests." $NUM_TEST_KERNEL
	427	fi
	428
	429
434f8068 JR	430	for fct_test in ${TESTS[@]};
	431	do
	432	TRACE_PATH=$(mktemp -d)
	433
	434	${fct_test}
	435	if [ $? -ne 0 ]; then
	436	break;
	437	fi
	438
	439	# Only delete if successful
	440	rm -rf $TRACE_PATH
	441	done