TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
+TESTAPP_STATE_FILE="$(mktemp -u)"
-NR_ITER=-1
+NR_ITER=1000
NR_USEC_WAIT=5
SESSION_NAME="my_session"
-UST_CHANNEL_NAME="my_ust_channel"
-EVENT_NAME="tp:tptest"
+CHANNEL_NAME="my_channel"
TRACE_PATH=$(mktemp -d)
PAGE_SIZE=$(getconf PAGE_SIZE)
-NUM_TESTS=62
+NUM_TEST_UST=50
+NUM_TEST_KERNEL=50
+NUM_TESTS=$(($NUM_TEST_UST + $NUM_TEST_KERNEL))
source $TESTDIR/utils/utils.sh
app_pids=()
+function kernel_event_generator_toogle_state
+{
+ kernel_event_generator_suspended=$((kernel_event_generator_suspended==0))
+
+}
+function kernel_event_generator
+{
+ state_file=$1
+ kernel_event_generator_suspended=0
+ trap kernel_event_generator_toogle_state SIGUSR1
+ trap "exit" SIGTERM SIGINT
+ while (true); do
+ if [[ $kernel_event_generator_suspended -eq "1" ]]; then
+ touch $state_file
+ sleep 0.5
+ else
+ if [[ -f $state_file ]]; then
+ rm $state_file 2> /dev/null
+ fi
+ echo -n "1000" > /proc/lttng-test-filter-event
+ fi
+ done
+}
+
+function ust_event_generator_toogle_state
+{
+ ust_event_generator_suspended=$((ust_event_generator_suspended==0))
+
+}
+function ust_event_generator
+{
+ state_file=$1
+ ust_event_generator_suspended=0
+ trap ust_event_generator_toogle_state SIGUSR1
+ trap "exit" SIGTERM SIGINT
+ while (true); do
+ if [[ $ust_event_generator_suspended -eq "1" ]]; then
+ touch $state_file
+ sleep 0.5
+ else
+ if [[ -f $state_file ]]; then
+ rm $state_file 2> /dev/null
+ fi
+ taskset -c 0 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT > /dev/null 2>&1
+ fi
+ done
+}
+
function start_client {
local pid=-1
local output_file=$1
local message=$1
local pipe=$2
echo -ne "${message}" > "${pipe}"
- return $?
}
function stop_consumerd ()
{
local pipe=$1
comm_consumerd "1" "$pipe"
- ok $? "Stopping consumption consumerd"
}
function resume_consumerd ()
{
local pipe=$1
comm_consumerd "\0" "$pipe"
- ok $? "Resuming consumerd"
}
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 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
# Cleanup
rm ${CURDIR}/${low_output_file_pattern}* 2> /dev/null
LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${testpoint_pipe_path} LD_PRELOAD=${TESTPOINT}"
start_lttng_sessiond
- # Start app in infinite loop
- $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $file_sync_after_first_event &
- app_pid=$!
- # Pin to CPU zero to force specific sub buffer usage
- taskset -p -c 0 $app_pid > /dev/null 2>&1
-
- # Wait for sync with app
- while [ ! -f "${file_sync_after_first_event}" ]; do
- sleep 0.5
- done
- rm ${file_sync_after_first_event}
-
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
- enable_ust_lttng_channel_ok $SESSION_NAME $UST_CHANNEL_NAME --subbuf-size=$PAGE_SIZE
- enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $UST_CHANNEL_NAME
+ enable_${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
for (( i = 0; i < $nr_client_app; i++ )); do
low_app_output_file=$CURDIR/${low_output_file_pattern}${i}
high_app_output_file=$CURDIR/${high_output_file_pattern}${i}
- start_client $low_app_output_file $SESSION_NAME $UST_CHANNEL_NAME LTTNG_DOMAIN_UST LOW RATIO 0.0 $nr_notification_expected
- start_client $high_app_output_file $SESSION_NAME $UST_CHANNEL_NAME LTTNG_DOMAIN_UST HIGH RATIO 0.420 $nr_notification_expected
+ 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 $nr_notification_expected
done
wait_for_message "${low_output_file_pattern}" "sync: ready"
wait_for_message "${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}"
# 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 "${low_output_file_pattern}" "exit: 0"
print_errors "${high_output_file_pattern}"
fi
- kill -9 $app_pid
- wait $app_pid 2> /dev/null
-
+ destroy_lttng_session_ok $SESSION_NAME
stop_lttng_sessiond
+
+ for pipe in "${consumerd_pipe[@]}"; do
+ rm -rf "${pipe}"
+ done
+}
+
+function test_multi_app_ust ()
+{
+ diag "Multi client app UST notification"
+ ust_event_generator $TESTAPP_STATE_FILE &
+ local generator_pid=$!
+
+ test_multi_app ust $generator_pid
+
+ kill -9 $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 $TESTAPP_STATE_FILE &
+ local generator_pid=$!
+
+ test_multi_app kernel $generator_pid
+
+
+ kill -9 $generator_pid 2>/dev/null
+ wait $generator_pid 2> /dev/null
+ rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
+
+ rmmod lttng-test
+}
+
+function test_on_register_evaluation_ust ()
+{
+ diag "On register notification UST"
+
+ # Start app in infinite loop
+ ust_event_generator $TESTAPP_STATE_FILE &
+ local generator_pid=$!
+
+ test_on_register_evaluation ust $generator_pid
+
+ kill -9 $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 $TESTAPP_STATE_FILE &
+ local generator_pid=$!
+
+ test_on_register_evaluation kernel $generator_pid
+
+
+ kill -9 $generator_pid 2> /dev/null
+ wait $generator_pid 2> /dev/null
+ rm -rf ${TESTAPP_STATE_FILE} 2> /dev/null
+
+ rmmod lttng-test
}
function test_on_register_evaluation ()
{
+ local domain_type=$1
+ local event_generator_pid=$2
+
local app_pids=()
local high_output_file_pattern="high_app_output_file_on_register_evaluation"
local testpoint_base_path=$(readlink -f "$CURDIR/lttng.t_p_n_register_evaluation")
local testpoint_pipe_path=$(mktemp -u "${testpoint_base_path}.XXXXXX")
+ local domain_string=""
+ local event_name=""
# Cleanup
rm ${CURDIR}/${high_output_file_pattern}* 2> /dev/null
+ 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
- # Start app in infinite loop
- $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $file_sync_after_first_event &
- app_pid=$!
- # Pin to CPU zero to force specific sub buffer usage
- taskset -p -c 0 $app_pid > /dev/null 2>&1
-
- # Wait for sync with app
- while [ ! -f "${file_sync_after_first_event}" ]; do
- sleep 0.5
- done
- rm ${file_sync_after_first_event}
-
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
- enable_ust_lttng_channel_ok $SESSION_NAME $UST_CHANNEL_NAME --subbuf-size=$PAGE_SIZE
- enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $UST_CHANNEL_NAME
+ enable_${domain_type}_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
+ enable_${domain_type}_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME
# Fetch consumerd testpoint pipe information
# This is needed since the testpoint create a pipe with the consumer type suffixed
high_app_output_file=${high_output_file_pattern}.first_receiver
high_app_output_path=$CURDIR/${high_app_output_file}
- start_client $high_app_output_path $SESSION_NAME $UST_CHANNEL_NAME LTTNG_DOMAIN_UST HIGH RATIO 0.420 1
+ start_client $high_app_output_path $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 1
wait_for_message "${high_app_output_file}" "sync: ready"
# notification on subscription
high_app_output_file=${high_output_file_pattern}.second_receiver
high_app_output_path=$CURDIR/${high_app_output_file}
- start_client $high_app_output_path $SESSION_NAME $UST_CHANNEL_NAME LTTNG_DOMAIN_UST HIGH RATIO 0.420 1
+ start_client $high_app_output_path $SESSION_NAME $CHANNEL_NAME $domain_string HIGH RATIO 0.420 1
wait_for_message "${high_app_output_file}" "sync: ready"
wait_for_message "${high_app_output_file}" "notification: high 0"
print_errors "${high_output_file_pattern}"
fi
+ destroy_lttng_session_ok $SESSION_NAME
stop_lttng_sessiond
- kill -9 $app_pid
- wait $app_pid 2> /dev/null
+ kill -9 $generator_pid
+ wait $generator_pid 2> /dev/null
+
+ for pipe in "${consumerd_pipe[@]}"; do
+ rm -rf "${pipe}"
+ done
+
}
TESTS=(
- test_multi_app
- test_on_register_evaluation
+ test_multi_app_ust
+ test_on_register_evaluation_ust
)
+if [ "$(id -u)" == "0" ]; then
+ 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)
# Only delete if successful
rm -rf $TRACE_PATH
done
-