X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=tests%2Fregression%2Fust%2Fnprocesses%2Ftest_nprocesses;h=7673370ce08ba2e8dc9f5d89ebbd1efe36da4c29;hp=e89d02e585481d534a100d5713753baf3eaa504a;hb=HEAD;hpb=5d2e1e66a968d9e555f9b8b00d0589ebfaf3de32

diff --git a/tests/regression/ust/nprocesses/test_nprocesses b/tests/regression/ust/nprocesses/test_nprocesses
index e89d02e58..cd897d42b 100755
--- a/tests/regression/ust/nprocesses/test_nprocesses
+++ b/tests/regression/ust/nprocesses/test_nprocesses
@@ -1,82 +1,92 @@
 #!/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=100
-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"
 
-print_test_banner "$TEST_DESC"
-
-if [ ! -x "$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
 
 plan_tests $NUM_TESTS
 
+print_test_banner "$TEST_DESC"
+
+# shellcheck disable=SC2119
 start_lttng_sessiond
 
-# Start test for 1000 seconds
+# Start tests. Each is an infinite tracing loop.
+
+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)
 
-for i in `seq 1 $NR_ITER`
+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
 
-sleep 3
+diag "Waiting for applications to be registered to sessiond"
 
-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)
-if [ "$reg_app_count" -ne "$NR_ITER" ]; then
-	fail "Trace validation"
-	diag "$reg_app_count apps listed. Expected $NR_ITER "
-else
-	pass "Trace validation"
-fi
+reg_app_count=0
+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 "$TESTAPP_BIN")
+done
+
+pass "All applications are registered to sessiond"
+
+TRACE_PATH=$(mktemp -d -t tmp.test_nprocesses_trace_path.XXXXXX)
 
-TRACE_PATH=$(mktemp -d)
+create_lttng_session_ok $SESSION_NAME "${TRACE_PATH}"
 
-create_lttng_session $SESSION_NAME $TRACE_PATH
+enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
+start_lttng_tracing_ok $SESSION_NAME
 
-enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
-start_lttng_tracing $SESSION_NAME
+touch "${file_sync_before_last}"
 
-diag "Sleeping $TEST_WAIT_SEC seconds for tracing to start everywhere"
-diag "Warning: this arbitrary time can make the test fail on slower system"
+# We don't validate whether the applications have traced here, rather
+# just that they registered to sessiond (above).
 
-sleep $TEST_WAIT_SEC
+stop_lttng_tracing_ok $SESSION_NAME
+destroy_lttng_session_ok $SESSION_NAME
 
-stop_lttng_tracing $SESSION_NAME
-destroy_lttng_session $SESSION_NAME
+#TODO: add trace validation.
 
-rm -rf $TRACE_PATH
+rm -rf "${TRACE_PATH}"
 
-# Send SIGPIPE to 'silence' bash process status such as "Process as terminated"
-killall -s PIPE -q $TEST_BIN_NAME >/dev/null 2>&1
+diag "Stopping all spawned applications"
+kill "${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