#!/bin/bash
#
-# Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
+# 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
-NR_ITER=30
-TEST_DESC="UST tracer - Generate $NR_ITER process"
+# SPDX-License-Identifier: LGPL-2.1-only
+
+NUM_PROCESS=30
+TEST_DESC="UST tracer - Generate $NUM_PROCESS process"
-CURDIR=$(dirname $0)/
+CURDIR=$(dirname "$0")/
TESTDIR=$CURDIR/../../..
-TEST_BIN_NAME="gen-events-time"
+NR_ITER=-1 # infinite loop
+NR_USEC_WAIT=1000000
+TESTAPP_PATH="$TESTDIR/utils/testapp"
+TESTAPP_NAME="gen-ust-events"
+TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
SESSION_NAME="ust-nprocesses"
-EVENT_NAME="ust_gen_event:tptest"
-TEST_WAIT_SEC=5
+EVENT_NAME="tp:tptest"
NUM_TESTS=9
+APP_PIDS=()
-source $TESTDIR/utils/utils.sh
+# shellcheck source-path=SCRIPTDIR/../../../
+source "${TESTDIR}/utils/utils.sh"
-if [ ! -x "$CURDIR/$TEST_BIN_NAME" ]; then
- BAIL_OUT "No UST $TEST_BIN_NAME binary detected."
+if [ ! -x "$TESTAPP_BIN" ]; then
+ BAIL_OUT "No UST $TESTAPP_BIN binary detected."
fi
# MUST set TESTDIR before calling those functions
print_test_banner "$TEST_DESC"
+# shellcheck disable=SC2119
start_lttng_sessiond
-# Start test for 1000 seconds
+# Start tests. Each is an infinite tracing loop.
-for i in `seq 1 $NR_ITER`
+file_sync_after_first=$(mktemp -u -t tmp.test_nprocesses_sync_after_first.XXXXXX)
+file_sync_before_last=$(mktemp -u -t tmp.test_nprocesses_sync_before_last.XXXXXX)
+
+diag "Starting $NUM_PROCESS test applications"
+# shellcheck disable=SC2034
+for i in $(seq 1 $NUM_PROCESS)
do
- ./$CURDIR/$TEST_BIN_NAME 1000 >/dev/null 2>&1 &
+ $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
+ --sync-after-first-event "${file_sync_after_first}" \
+ --sync-before-last-event "${file_sync_before_last}" >/dev/null 2>&1 &
+ APP_PIDS+=(${!})
done
+diag "Waiting for applications to be registered to sessiond"
+
reg_app_count=0
-while [ $reg_app_count -ne $NR_ITER ]; do
- listing=$($TESTDIR/../src/bin/lttng/$LTTNG_BIN list -u)
- reg_app_count=$(echo -n $listing | sed "s/$TEST_BIN_NAME/$TEST_BIN_NAME\n/g" | grep "$TEST_BIN_NAME" | wc -l)
+while [ $reg_app_count -ne $NUM_PROCESS ]; do
+ listing=$("${TESTDIR}/../src/bin/lttng/${LTTNG_BIN}" list -u)
+ reg_app_count=$(echo -n "${listing}" | sed "s#$TESTAPP_BIN#$TESTAPP_BIN\n#g" | grep -c "$TESTAPP_BIN")
done
-pass "Trace validation"
+pass "All applications are registered to sessiond"
-TRACE_PATH=$(mktemp -d)
+TRACE_PATH=$(mktemp -d -t tmp.test_nprocesses_trace_path.XXXXXX)
-create_lttng_session $SESSION_NAME $TRACE_PATH
+create_lttng_session_ok $SESSION_NAME "${TRACE_PATH}"
-enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
-start_lttng_tracing $SESSION_NAME
+enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
+start_lttng_tracing_ok $SESSION_NAME
-diag "Sleeping $TEST_WAIT_SEC seconds for tracing to start everywhere"
-diag "Warning: this arbitrary time can make the test fail on slower system"
+touch "${file_sync_before_last}"
-sleep $TEST_WAIT_SEC
+# We don't validate whether the applications have traced here, rather
+# just that they registered to sessiond (above).
-stop_lttng_tracing $SESSION_NAME
-destroy_lttng_session $SESSION_NAME
+stop_lttng_tracing_ok $SESSION_NAME
+destroy_lttng_session_ok $SESSION_NAME
-rm -rf $TRACE_PATH
+#TODO: add trace validation.
-while [ -n "$(pidof $TEST_BIN_NAME)" ]; do
- killall -s PIPE -q $TEST_BIN_NAME >/dev/null 2>&1
- sleep 0.5
-done
+rm -rf "${TRACE_PATH}"
+diag "Stopping all spawned applications"
+kill "${APP_PIDS[@]}"
+wait "${APP_PIDS[@]}" 2>/dev/null
+APP_PIDS=()
+pass "Stopped all spawned applications"
-pass "Kill all spawned applications"
+rm -f "${file_sync_after_first}"
+rm -f "${file_sync_before_last}"
+# shellcheck disable=SC2119
stop_lttng_sessiond