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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <string.h>
#include <memory>
#include <android-base/file.h>
#include "environment.h"
#include "event_attr.h"
#include "event_type.h"
#include "record.h"
#include "record_file.h"
#include "record_equal_test.h"
using namespace PerfFileFormat;
class RecordFileTest : public ::testing::Test {
protected:
void AddEventType(const std::string& event_type_str) {
std::unique_ptr<EventTypeAndModifier> event_type_modifier = ParseEventType(event_type_str);
ASSERT_TRUE(event_type_modifier != nullptr);
perf_event_attr attr = CreateDefaultPerfEventAttr(event_type_modifier->event_type);
attr.sample_id_all = 1;
attrs_.push_back(std::unique_ptr<perf_event_attr>(new perf_event_attr(attr)));
EventAttrWithId attr_id;
attr_id.attr = attrs_.back().get();
attr_id.ids.push_back(attrs_.size()); // Fake id.
attr_ids_.push_back(attr_id);
}
TemporaryFile tmpfile_;
std::vector<std::unique_ptr<perf_event_attr>> attrs_;
std::vector<EventAttrWithId> attr_ids_;
};
TEST_F(RecordFileTest, smoke) {
// Write to a record file.
std::unique_ptr<RecordFileWriter> writer = RecordFileWriter::CreateInstance(tmpfile_.path);
ASSERT_TRUE(writer != nullptr);
// Write attr section.
AddEventType("cpu-cycles");
ASSERT_TRUE(writer->WriteAttrSection(attr_ids_));
// Write data section.
MmapRecord mmap_record(*(attr_ids_[0].attr), true, 1, 1, 0x1000, 0x2000,
0x3000, "mmap_record_example", attr_ids_[0].ids[0]);
ASSERT_TRUE(writer->WriteRecord(mmap_record));
// Write feature section.
ASSERT_TRUE(writer->BeginWriteFeatures(1));
char p[BuildId::Size()];
for (size_t i = 0; i < BuildId::Size(); ++i) {
p[i] = i;
}
BuildId build_id(p);
std::vector<BuildIdRecord> build_id_records;
build_id_records.push_back(BuildIdRecord(false, getpid(), build_id, "init"));
ASSERT_TRUE(writer->WriteBuildIdFeature(build_id_records));
ASSERT_TRUE(writer->EndWriteFeatures());
ASSERT_TRUE(writer->Close());
// Read from a record file.
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile_.path);
ASSERT_TRUE(reader != nullptr);
std::vector<EventAttrWithId> attrs = reader->AttrSection();
ASSERT_EQ(1u, attrs.size());
ASSERT_EQ(0, memcmp(attrs[0].attr, attr_ids_[0].attr, sizeof(perf_event_attr)));
ASSERT_EQ(attrs[0].ids, attr_ids_[0].ids);
// Read and check data section.
std::vector<std::unique_ptr<Record>> records = reader->DataSection();
ASSERT_EQ(1u, records.size());
CheckRecordEqual(mmap_record, *records[0]);
// Read and check feature section.
std::vector<BuildIdRecord> read_build_id_records = reader->ReadBuildIdFeature();
ASSERT_EQ(1u, read_build_id_records.size());
CheckRecordEqual(read_build_id_records[0], build_id_records[0]);
ASSERT_TRUE(reader->Close());
}
TEST_F(RecordFileTest, record_more_than_one_attr) {
// Write to a record file.
std::unique_ptr<RecordFileWriter> writer = RecordFileWriter::CreateInstance(tmpfile_.path);
ASSERT_TRUE(writer != nullptr);
// Write attr section.
AddEventType("cpu-cycles");
AddEventType("cpu-clock");
AddEventType("task-clock");
ASSERT_TRUE(writer->WriteAttrSection(attr_ids_));
ASSERT_TRUE(writer->Close());
// Read from a record file.
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile_.path);
ASSERT_TRUE(reader != nullptr);
std::vector<EventAttrWithId> attrs = reader->AttrSection();
ASSERT_EQ(3u, attrs.size());
for (size_t i = 0; i < attrs.size(); ++i) {
ASSERT_EQ(0, memcmp(attrs[i].attr, attr_ids_[i].attr, sizeof(perf_event_attr)));
ASSERT_EQ(attrs[i].ids, attr_ids_[i].ids);
}
}
TEST_F(RecordFileTest, write_meta_info_feature_section) {
// Write to a record file.
std::unique_ptr<RecordFileWriter> writer = RecordFileWriter::CreateInstance(tmpfile_.path);
ASSERT_TRUE(writer != nullptr);
AddEventType("cpu-cycles");
ASSERT_TRUE(writer->WriteAttrSection(attr_ids_));
// Write meta_info feature section.
ASSERT_TRUE(writer->BeginWriteFeatures(1));
std::unordered_map<std::string, std::string> info_map;
for (int i = 0; i < 100; ++i) {
std::string s = std::to_string(i);
info_map[s] = s + s;
}
ASSERT_TRUE(writer->WriteMetaInfoFeature(info_map));
ASSERT_TRUE(writer->EndWriteFeatures());
ASSERT_TRUE(writer->Close());
// Read from a record file.
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile_.path);
ASSERT_TRUE(reader != nullptr);
std::unordered_map<std::string, std::string> read_info_map;
ASSERT_TRUE(reader->ReadMetaInfoFeature(&read_info_map));
ASSERT_EQ(read_info_map, info_map);
}
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