| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| #ifndef SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_ |
| #define SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_ |
| |
| #include <memory> |
| #include <set> |
| #include <vector> |
| |
| #include "event_attr.h" |
| #include "record.h" |
| #include "UnixSocket.h" |
| |
| class InplaceSamplerClient { |
| public: |
| static std::unique_ptr<InplaceSamplerClient> Create(const perf_event_attr& attr, pid_t pid, |
| const std::set<pid_t>& tids); |
| uint64_t Id() const; |
| bool IsClosed() { |
| return conn_->IsClosed(); |
| } |
| bool StartPolling(IOEventLoop& loop, const std::function<bool(Record*)>& record_callback, |
| const std::function<bool()>& close_callback); |
| bool StopProfiling(IOEventLoop& loop, const std::function<bool()>& close_callback); |
| |
| private: |
| InplaceSamplerClient(const perf_event_attr& attr, pid_t pid, const std::set<pid_t>& tids); |
| bool ConnectServer(); |
| bool SendStartProfilingMessage(); |
| bool HandleMessage(const UnixSocketMessage& msg); |
| |
| const perf_event_attr attr_; |
| const pid_t pid_; |
| const std::set<pid_t> tids_; |
| uint32_t sample_freq_; |
| std::unique_ptr<UnixSocketConnection> conn_; |
| std::function<bool(Record*)> record_callback_; |
| bool got_start_profiling_reply_msg_; |
| }; |
| |
| #endif // SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_ |