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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CHROMEOS_TRACE_ARC_TRACE_AGENT_H_ |
| 6 #define CHROMEOS_TRACE_ARC_TRACE_AGENT_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "base/callback.h" |
| 11 #include "base/files/scoped_file.h" |
| 12 #include "base/trace_event/trace_event.h" |
| 13 #include "base/trace_event/tracing_agent.h" |
| 14 #include "chromeos/chromeos_export.h" |
| 15 |
| 16 namespace chromeos { |
| 17 |
| 18 // A wrapper for controlling tracing in ARC container. |
| 19 class CHROMEOS_EXPORT ArcTraceAgent : public base::trace_event::TracingAgent { |
| 20 public: |
| 21 class Delegate { |
| 22 public: |
| 23 using StartTracingCallback = base::Callback<void(bool)>; |
| 24 using StopTracingCallback = base::Callback<void(const std::string&)>; |
| 25 |
| 26 virtual ~Delegate() = default; |
| 27 |
| 28 virtual void StartTracing( |
| 29 const base::trace_event::TraceConfig& trace_config, |
| 30 const StartTracingCallback& callback) = 0; |
| 31 |
| 32 virtual void StopTracing(const StopTracingCallback& callback) = 0; |
| 33 }; |
| 34 |
| 35 virtual ~ArcTraceAgent() = default; |
| 36 |
| 37 static ArcTraceAgent* GetInstance(); |
| 38 |
| 39 // Sets Delegate instance, which should implement the communication |
| 40 // using ARC bridge. If set to nullptr, calling of Start/StopAgentTracing |
| 41 // does nothing. |
| 42 virtual void SetDelegate(Delegate* delegate) = 0; |
| 43 }; |
| 44 |
| 45 } // namespace chromeos |
| 46 |
| 47 #endif // CHROMEOS_TRACE_ARC_TRACE_AGENT_H_ |
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