| // Copyright (c) 2012 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 DEBUGD_SRC_PERF_TOOL_H_ |
| #define DEBUGD_SRC_PERF_TOOL_H_ |
| |
| #include <stdint.h> |
| #include <sys/utsname.h> |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include <base/macros.h> |
| #include <dbus-c++/dbus.h> |
| |
| #include "debugd/src/cpu_info_parser.h" |
| |
| namespace debugd { |
| |
| class RandomSelector; |
| |
| class PerfTool { |
| public: |
| // For injection of uname(2) |
| typedef std::function<int(struct utsname*)> UnameFunc; |
| |
| PerfTool(); |
| // This is a special constructor for testing that takes in CPUInfoParser and |
| // RandomSelector args and allows injection of uname(2). It takes ownership of |
| // |random_selector|. |
| PerfTool(const CPUInfoParser& cpu_info, |
| RandomSelector* random_selector, |
| UnameFunc uname_func); |
| ~PerfTool() = default; |
| |
| // Runs the perf tool with the request command for |duration_secs| seconds |
| // and returns either a perf_data or perf_stat protobuf in serialized form. |
| int GetPerfOutput(const uint32_t& duration_secs, |
| const std::vector<std::string>& perf_args, |
| std::vector<uint8_t>* perf_data, |
| std::vector<uint8_t>* perf_stat, |
| DBus::Error* error); |
| |
| // Randomly runs the perf tool in various modes and collects various events |
| // for |duration_secs| seconds and returns either a perf_data or perf_stat |
| // protobuf in binary form. |
| int GetRandomPerfOutput(const uint32_t& duration_secs, |
| std::vector<uint8_t>* perf_data, |
| std::vector<uint8_t>* perf_stat, |
| DBus::Error* error); |
| |
| // Randomly runs the perf tool in various modes and collects various events |
| // for |duration_secs| seconds and returns a protobuf containing the collected |
| // data. |
| std::vector<uint8_t> GetRichPerfData(const uint32_t& duration_secs, |
| DBus::Error* error); |
| |
| private: |
| // Helper function that runs perf for a given |duration_secs| returning the |
| // collected data in |data_string|. Return value is the status from running |
| // perf. |
| int GetPerfOutputHelper(const uint32_t& duration_secs, |
| const std::vector<std::string>& perf_args, |
| DBus::Error* error, |
| std::string* data_string); |
| |
| std::unique_ptr<RandomSelector> random_selector_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PerfTool); |
| }; |
| |
| } // namespace debugd |
| |
| #endif // DEBUGD_SRC_PERF_TOOL_H_ |