2 * Copyright (C) 2017 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_
18 #define SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_
24 #include "event_attr.h"
26 #include "UnixSocket.h"
28 class InplaceSamplerClient {
30 static std::unique_ptr<InplaceSamplerClient> Create(const perf_event_attr& attr, pid_t pid,
31 const std::set<pid_t>& tids);
34 return conn_->IsClosed();
36 bool StartPolling(IOEventLoop& loop, const std::function<bool(Record*)>& record_callback,
37 const std::function<bool()>& close_callback);
38 bool StopProfiling(IOEventLoop& loop, const std::function<bool()>& close_callback);
41 InplaceSamplerClient(const perf_event_attr& attr, pid_t pid, const std::set<pid_t>& tids);
43 bool SendStartProfilingMessage();
44 bool HandleMessage(const UnixSocketMessage& msg);
46 const perf_event_attr attr_;
48 const std::set<pid_t> tids_;
49 uint32_t sample_freq_;
50 std::unique_ptr<UnixSocketConnection> conn_;
51 std::function<bool(Record*)> record_callback_;
52 bool got_start_profiling_reply_msg_;
55 #endif // SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_