55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_
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#define SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_
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#include <memory>
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#include <set>
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#include <vector>
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#include "event_attr.h"
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#include "record.h"
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#include "UnixSocket.h"
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class InplaceSamplerClient {
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public:
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static std::unique_ptr<InplaceSamplerClient> Create(const perf_event_attr& attr, pid_t pid,
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const std::set<pid_t>& tids);
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uint64_t Id() const;
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bool IsClosed() {
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return conn_->IsClosed();
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}
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bool StartPolling(IOEventLoop& loop, const std::function<bool(Record*)>& record_callback,
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const std::function<bool()>& close_callback);
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bool StopProfiling(IOEventLoop& loop, const std::function<bool()>& close_callback);
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private:
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InplaceSamplerClient(const perf_event_attr& attr, pid_t pid, const std::set<pid_t>& tids);
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bool ConnectServer();
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bool SendStartProfilingMessage();
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bool HandleMessage(const UnixSocketMessage& msg);
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const perf_event_attr attr_;
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const pid_t pid_;
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const std::set<pid_t> tids_;
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uint32_t sample_freq_;
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std::unique_ptr<UnixSocketConnection> conn_;
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std::function<bool(Record*)> record_callback_;
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bool got_start_profiling_reply_msg_;
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};
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#endif // SIMPLE_PERF_INPLACE_SAMPLER_CLIENT_H_
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