| // Copyright (c) 2014 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROMIUMOS_WIDE_PROFILING_TEST_PERF_DATA_H_ |
| #define CHROMIUMOS_WIDE_PROFILING_TEST_PERF_DATA_H_ |
| |
| #include <ostream> // NOLINT |
| #include <vector> |
| |
| #include "chromiumos-wide-profiling/kernel/perf_internals.h" |
| |
| namespace quipper { |
| namespace testing { |
| |
| class StreamWriteable { |
| public: |
| virtual ~StreamWriteable() {} |
| virtual void WriteTo(std::ostream* out) const = 0; |
| }; |
| |
| // Normal mode header |
| class ExamplePerfDataFileHeader : public StreamWriteable { |
| public: |
| explicit ExamplePerfDataFileHeader(const size_t attr_count, |
| const unsigned long features); // NOLINT |
| |
| const perf_file_header &header() const { return header_; } |
| const ssize_t data_end() const { |
| return static_cast<ssize_t>(header_.data.offset + header_.data.size); } |
| |
| void WriteTo(std::ostream* out) const override; |
| |
| private: |
| perf_file_header header_; |
| }; |
| |
| // Produces a struct perf_file_attr with a perf_event_attr describing a |
| // tracepoint event. |
| class ExamplePerfFileAttr_Tracepoint : public StreamWriteable { |
| public: |
| explicit ExamplePerfFileAttr_Tracepoint(const u64 tracepoint_event_id) |
| : tracepoint_event_id_(tracepoint_event_id) {} |
| void WriteTo(std::ostream* out) const override; |
| private: |
| const u64 tracepoint_event_id_; |
| }; |
| |
| // Produces a struct sample_event matching ExamplePerfFileAttr_Tracepoint. |
| class ExamplePerfSampleEvent_Tracepoint : public StreamWriteable { |
| public: |
| ExamplePerfSampleEvent_Tracepoint() {} |
| void WriteTo(std::ostream* out) const override; |
| }; |
| |
| // Produces a struct perf_file_section suitable for use in the metadata index. |
| class MetadataIndexEntry : public StreamWriteable { |
| public: |
| MetadataIndexEntry(u64 offset, u64 size) |
| : index_entry_{.offset = offset, .size = size} {} |
| void WriteTo(std::ostream* out) const override { |
| out->write(reinterpret_cast<const char*>(&index_entry_), |
| sizeof(index_entry_)); |
| } |
| public: |
| const perf_file_section index_entry_; |
| }; |
| |
| // Produces sample tracing metadata, and corresponding metadata index entry. |
| class ExampleTracingMetadata { |
| public: |
| class Data : public StreamWriteable { |
| public: |
| static const std::vector<char> kTraceMetadata; |
| |
| explicit Data(ExampleTracingMetadata* parent) : parent_(parent) {} |
| |
| const std::vector<char> value() const { return kTraceMetadata; } |
| |
| void WriteTo(std::ostream* out) const override; |
| |
| private: |
| ExampleTracingMetadata* parent_; |
| }; |
| |
| explicit ExampleTracingMetadata(size_t offset) |
| : data_(this), index_entry_(offset, data_.value().size()) {} |
| |
| const Data &data() { return data_; } |
| const MetadataIndexEntry &index_entry() { return index_entry_; } |
| |
| private: |
| friend class Data; |
| Data data_; |
| MetadataIndexEntry index_entry_; |
| }; |
| |
| } // namespace testing |
| } // namespace quipper |
| |
| #endif // CHROMIUMOS_WIDE_PROFILING_TEST_PERF_DATA_H_ |