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Unified Diff: chromeos/trace/arc_trace_agent.h

Issue 2400163003: arc: enable Android tracing in verified-boot mode (Closed)
Patch Set: Fix some nits Created 3 years, 10 months ago
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Index: chromeos/trace/arc_trace_agent.h
diff --git a/chromeos/trace/arc_trace_agent.h b/chromeos/trace/arc_trace_agent.h
new file mode 100644
index 0000000000000000000000000000000000000000..f107dd4520e63b0535df11e53eec5f6a42ae3ba6
--- /dev/null
+++ b/chromeos/trace/arc_trace_agent.h
@@ -0,0 +1,47 @@
+// Copyright 2017 The Chromium 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 CHROMEOS_TRACE_ARC_TRACE_AGENT_H_
+#define CHROMEOS_TRACE_ARC_TRACE_AGENT_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/files/scoped_file.h"
+#include "base/trace_event/trace_event.h"
+#include "base/trace_event/tracing_agent.h"
+#include "chromeos/chromeos_export.h"
+
+namespace chromeos {
+
+// A wrapper for controlling tracing in ARC container.
+class CHROMEOS_EXPORT ArcTraceAgent : public base::trace_event::TracingAgent {
+ public:
+ class Delegate {
+ public:
+ using StartTracingCallback = base::Callback<void(bool)>;
+ using StopTracingCallback = base::Callback<void(const std::string&)>;
+
+ virtual ~Delegate() = default;
+
+ virtual void StartTracing(
+ const base::trace_event::TraceConfig& trace_config,
+ const StartTracingCallback& callback) = 0;
+
+ virtual void StopTracing(const StopTracingCallback& callback) = 0;
+ };
+
+ virtual ~ArcTraceAgent() = default;
+
+ static ArcTraceAgent* GetInstance();
+
+ // Sets Delegate instance, which should implement the communication
+ // using ARC bridge. If set to nullptr, calling of Start/StopAgentTracing
+ // does nothing.
+ virtual void SetDelegate(Delegate* delegate) = 0;
+};
+
+} // namespace chromeos
+
+#endif // CHROMEOS_TRACE_ARC_TRACE_AGENT_H_

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