| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) 2012 David Goulet <dgoulet@efficios.com> |
| 4 | # |
| 5 | # SPDX-License-Identifier: LGPL-2.1-only |
| 6 | |
| 7 | NUM_PROCESS=30 |
| 8 | TEST_DESC="UST tracer - Generate $NUM_PROCESS process" |
| 9 | |
| 10 | CURDIR=$(dirname "$0")/ |
| 11 | TESTDIR=$CURDIR/../../.. |
| 12 | NR_ITER=-1 # infinite loop |
| 13 | NR_USEC_WAIT=1000000 |
| 14 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
| 15 | TESTAPP_NAME="gen-ust-events" |
| 16 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" |
| 17 | SESSION_NAME="ust-nprocesses" |
| 18 | EVENT_NAME="tp:tptest" |
| 19 | NUM_TESTS=9 |
| 20 | APP_PIDS=() |
| 21 | |
| 22 | # shellcheck source-path=SCRIPTDIR/../../../ |
| 23 | source "${TESTDIR}/utils/utils.sh" |
| 24 | |
| 25 | if [ ! -x "$TESTAPP_BIN" ]; then |
| 26 | BAIL_OUT "No UST $TESTAPP_BIN binary detected." |
| 27 | fi |
| 28 | |
| 29 | # MUST set TESTDIR before calling those functions |
| 30 | |
| 31 | plan_tests $NUM_TESTS |
| 32 | |
| 33 | print_test_banner "$TEST_DESC" |
| 34 | |
| 35 | # shellcheck disable=SC2119 |
| 36 | start_lttng_sessiond |
| 37 | |
| 38 | # Start tests. Each is an infinite tracing loop. |
| 39 | |
| 40 | file_sync_after_first=$(mktemp -u -t tmp.test_nprocesses_sync_after_first.XXXXXX) |
| 41 | file_sync_before_last=$(mktemp -u -t tmp.test_nprocesses_sync_before_last.XXXXXX) |
| 42 | |
| 43 | diag "Starting $NUM_PROCESS test applications" |
| 44 | # shellcheck disable=SC2034 |
| 45 | for i in $(seq 1 $NUM_PROCESS) |
| 46 | do |
| 47 | $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \ |
| 48 | --sync-after-first-event "${file_sync_after_first}" \ |
| 49 | --sync-before-last-event "${file_sync_before_last}" >/dev/null 2>&1 & |
| 50 | APP_PIDS+=(${!}) |
| 51 | done |
| 52 | |
| 53 | diag "Waiting for applications to be registered to sessiond" |
| 54 | |
| 55 | reg_app_count=0 |
| 56 | while [ $reg_app_count -ne $NUM_PROCESS ]; do |
| 57 | listing=$("${TESTDIR}/../src/bin/lttng/${LTTNG_BIN}" list -u) |
| 58 | reg_app_count=$(echo -n "${listing}" | sed "s#$TESTAPP_BIN#$TESTAPP_BIN\n#g" | grep -c "$TESTAPP_BIN") |
| 59 | done |
| 60 | |
| 61 | pass "All applications are registered to sessiond" |
| 62 | |
| 63 | TRACE_PATH=$(mktemp -d -t tmp.test_nprocesses_trace_path.XXXXXX) |
| 64 | |
| 65 | create_lttng_session_ok $SESSION_NAME "${TRACE_PATH}" |
| 66 | |
| 67 | enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME |
| 68 | start_lttng_tracing_ok $SESSION_NAME |
| 69 | |
| 70 | touch "${file_sync_before_last}" |
| 71 | |
| 72 | # We don't validate whether the applications have traced here, rather |
| 73 | # just that they registered to sessiond (above). |
| 74 | |
| 75 | stop_lttng_tracing_ok $SESSION_NAME |
| 76 | destroy_lttng_session_ok $SESSION_NAME |
| 77 | |
| 78 | #TODO: add trace validation. |
| 79 | |
| 80 | rm -rf "${TRACE_PATH}" |
| 81 | |
| 82 | diag "Stopping all spawned applications" |
| 83 | kill "${APP_PIDS[@]}" |
| 84 | wait "${APP_PIDS[@]}" 2>/dev/null |
| 85 | APP_PIDS=() |
| 86 | pass "Stopped all spawned applications" |
| 87 | |
| 88 | rm -f "${file_sync_after_first}" |
| 89 | rm -f "${file_sync_before_last}" |
| 90 | |
| 91 | # shellcheck disable=SC2119 |
| 92 | stop_lttng_sessiond |