--- /dev/null
+/*
+ * lttng-clock-override-test.c
+ *
+ * Copyright (c) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (c) 2015 Jonthan Rajotte <jonathan.rajotte-julien@efficios.com>
+ * Based on lttng-clock-override-example.c from LTTng-ust example
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <stdio.h>
+#include <lttng/ust-clock.h>
+
+static
+uint64_t plugin_read64(void)
+{
+ /* Freeze time */
+ return 0;
+}
+
+static
+uint64_t plugin_freq(void)
+{
+ return 1000; /* 1KHz clock (very coarse!) */
+}
+
+static
+int plugin_uuid(char *uuid)
+{
+ const char myuuid[] = "83c63deb-7aa4-48fb-abda-946f400d76e6";
+ memcpy(uuid, myuuid, LTTNG_UST_UUID_STR_LEN);
+ return 0;
+}
+
+static
+const char *plugin_name(void)
+{
+ return "lttng_test_clock_override";
+}
+
+static
+const char *plugin_description(void)
+{
+ return "Freeze time with 1KHz for regression test";
+}
+
+void lttng_ust_clock_plugin_init(void)
+{
+ int ret;
+
+ ret = lttng_ust_trace_clock_set_read64_cb(plugin_read64);
+ if (ret) {
+ fprintf(stderr, "Error setting clock override read64 callback: %s\n",
+ strerror(-ret));
+ goto error;
+ }
+ ret = lttng_ust_trace_clock_set_freq_cb(plugin_freq);
+ if (ret) {
+ fprintf(stderr, "Error setting clock override freq callback: %s\n",
+ strerror(-ret));
+ goto error;
+ }
+ ret = lttng_ust_trace_clock_set_uuid_cb(plugin_uuid);
+ if (ret) {
+ fprintf(stderr, "Error setting clock override uuid callback: %s\n",
+ strerror(-ret));
+ goto error;
+ }
+
+ ret = lttng_ust_trace_clock_set_name_cb(plugin_name);
+ if (ret) {
+ fprintf(stderr, "Error setting clock override name callback: %s\n",
+ strerror(-ret));
+ goto error;
+ }
+
+ ret = lttng_ust_trace_clock_set_description_cb(plugin_description);
+ if (ret) {
+ fprintf(stderr, "Error setting clock override description callback: %s\n",
+ strerror(-ret));
+ goto error;
+ }
+
+ ret = lttng_ust_enable_trace_clock_override();
+ if (ret) {
+ fprintf(stderr, "Error enabling clock override: %s\n",
+ strerror(-ret));
+ goto error;
+ }
+
+ return;
+
+error:
+ exit(EXIT_FAILURE);
+}
--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2015 Jonathan Rajotte <jonathan.rajotte-julien@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
+TEST_DESC="UST - Getcpu override plugin"
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/../../..
+SESSION_NAME="clock_override"
+
+TESTAPP_PATH="$TESTDIR/utils/testapp"
+TESTAPP_NAME="gen-ust-events"
+TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
+TESTAPP_WRAPPER="run-getcpu-override"
+NUM_EVENT=256
+EVENT_NAME="tp:tptest"
+LTTNG_UST_CLOCK_PLUGIN_SO="lttng-ust-clock-override-test.so"
+LIBS_DIR=".libs"
+
+METADATA_CLOCK_START_TOKEN="clock {"
+METADATA_CLOCK_END_TOKEN="};"
+
+METADATA_TOKEN_LIST=(
+ "name"
+ "uuid"
+ "description"
+ "freq"
+)
+
+UST_CLOCK_TOKEN_VALUE=(
+ "lttng_test_clock_override"
+ "83c63deb-7aa4-48fb-abda-946f400d76e6"
+ "Freeze time with 1KHz for regression test"
+ "1000"
+)
+
+NUM_TESTS=33
+
+source $TESTDIR/utils/utils.sh
+
+if [ ! -x "$CURDIR/$LIBS_DIR/$LTTNG_UST_CLOCK_PLUGIN_SO" ]; then
+ BAIL_OUT "No shared object generated"
+fi
+
+# MUST set TESTDIR before calling those functions
+function run_app()
+{
+ $TESTAPP_BIN $NUM_EVENT
+ ok $? "Application done"
+}
+
+function extract_clock_metadata()
+{
+ local metadata_file=$1
+ local clock_metadata_file_destination=$2
+ cat $metadata_file \
+ | sed -n "/$METADATA_CLOCK_START_TOKEN/,/$METADATA_CLOCK_END_TOKEN/p" \
+ > $clock_metadata_file_destination
+ ok $? "Clock metadata extraction"
+}
+
+function extract_clock_metadata_token()
+{
+ local clock_metadata_file=$1
+ local token=$2
+ # Look for token and get value between ""
+ cat $clock_metadata_file | grep $token | awk -F"= |;" '{print $2}' | tr -d '"'
+}
+
+function test_getcpu_override_metadata()
+{
+ local ctf_metadata_file=$(mktemp -p $TRACE_PATH ctf-metadata.XXXXX)
+ local clock_metadata_file=$(mktemp -p $TRACE_PATH clock-metadata.XXXXX)
+ local result=""
+
+ diag "Clock override plugin metadata test"
+
+ # LTTNG_UST_CLOCK_PLUGIN need to be defined for lttng-sessiond.
+ export LTTNG_UST_CLOCK_PLUGIN=$CURDIR/.libs/$LTTNG_UST_CLOCK_PLUGIN_SO
+ start_lttng_sessiond
+ unset LTTNG_UST_CLOCK_PLUGIN
+
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+ stop_lttng_sessiond
+
+ $BABELTRACE_BIN -o ctf-metadata -w $ctf_metadata_file $TRACE_PATH
+ ok $? "Metadata extraction from babeltrace"
+
+ extract_clock_metadata $ctf_metadata_file $clock_metadata_file
+
+ test ${#METADATA_TOKEN_LIST[@]} -eq ${#UST_CLOCK_TOKEN_VALUE[@]}
+ ok $? "Tokens to check(${#METADATA_TOKEN_LIST[@]}) and provided values(${#UST_CLOCK_TOKEN_VALUE[@]}) count is equal"
+
+ local counter=0
+ while [ "$counter" -lt "${#METADATA_TOKEN_LIST[@]}" ]; do
+ result=$(extract_clock_metadata_token $clock_metadata_file \
+ ${METADATA_TOKEN_LIST[$counter]})
+ test "$result" == "${UST_CLOCK_TOKEN_VALUE[$counter]}"
+ ok $? "Token \"${METADATA_TOKEN_LIST[$counter]}\" expect:${UST_CLOCK_TOKEN_VALUE[$counter]} got:$result"
+ let "counter++"
+ done
+ rm -rf $ctf_metadata_file
+ rm -rf $clock_metadata_file
+}
+
+function test_getcpu_override_timestamp()
+{
+ diag "Clock override test"
+
+ # Test without the plugin
+ diag "Plugin disabled"
+ start_lttng_sessiond
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ # Use Babeltrace with "-n all" to give a comma separated list for
+ # easy extraction of timestamps.
+ unique_timestamps_count=$($BABELTRACE_BIN -n all $TRACE_PATH | \
+ cut -d, -f1 | uniq | wc -l)
+ test $unique_timestamps_count -gt 1
+ ok $? "Unique event timestamps without clock override: $unique_timestamps_count expect >1"
+ stop_lttng_sessiond
+
+ # Test with clock override plugin.
+ # LTTNG_UST_CLOCK_PLUGIN need to be defined for both lttng-sessiond.
+ diag "Plugin enabled"
+ export LTTNG_UST_CLOCK_PLUGIN=$CURDIR/.libs/$LTTNG_UST_CLOCK_PLUGIN_SO
+ start_lttng_sessiond
+ unset LTTNG_UST_CLOCK_PLUGIN
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+ stop_lttng_sessiond
+
+ # Use Babeltrace with "-n all" to give a comma separated list for
+ # easy extraction of timestamps.
+ unique_timestamps_count=$($BABELTRACE_BIN -n all $TRACE_PATH | \
+ cut -d, -f1 | uniq | wc -l)
+ test $unique_timestamps_count -eq 1
+ ok $? "Unique event timestamps with clock override: $unique_timestamps_count expect 1"
+}
+
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+TESTS=(
+ "test_getcpu_override_metadata"
+ "test_getcpu_override_timestamp"
+)
+
+TEST_COUNT=${#TESTS[@]}
+i=0
+
+while [ "$i" -lt "$TEST_COUNT" ]; do
+
+ TRACE_PATH=$(mktemp -d)
+
+ # Execute test
+ ${TESTS[$i]}
+
+ rm -rf $TRACE_PATH
+
+ let "i++"
+done
+
projects / lttng-tools.git / commitdiff
