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| 1 // Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_ | |
| 6 #define CHROME_BROWSER_CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_ | |
| 7 | |
| 8 #include "base/callback.h" | |
| 9 #include "base/memory/ref_counted_memory.h" | |
| 10 #include "chrome/browser/chromeos/dbus/dbus_client_implementation_type.h" | |
| 11 | |
| 12 namespace dbus { | |
| 13 class Bus; | |
| 14 } // namespace dbus | |
| 15 | |
| 16 namespace chromeos { | |
| 17 | |
| 18 // DebugDaemonClient is used to communicate with the debug daemon. | |
| 19 class DebugDaemonClient { | |
| 20 public: | |
| 21 virtual ~DebugDaemonClient(); | |
| 22 | |
| 23 // Requests to start system/kernel tracing. | |
| 24 virtual void StartSystemTracing() = 0; | |
| 25 | |
| 26 // Called once RequestStopSystemTracing() is complete. Takes one parameter: | |
| 27 // - result: the data collected while tracing was active | |
| 28 typedef base::Callback<void(const scoped_refptr<base::RefCountedString>& | |
| 29 result)> StopSystemTracingCallback; | |
| 30 | |
| 31 // Requests to stop system tracing and calls |callback| when completed. | |
| 32 virtual bool RequestStopSystemTracing(const StopSystemTracingCallback& | |
| 33 callback) = 0; | |
| 34 | |
| 35 // Returns an empty SystemTracingCallback that does nothing. | |
| 36 static StopSystemTracingCallback EmptyStopSystemTracingCallback(); | |
| 37 | |
| 38 // Factory function, creates a new instance and returns ownership. | |
| 39 // For normal usage, access the singleton via DBusThreadManager::Get(). | |
| 40 static DebugDaemonClient* Create(DBusClientImplementationType type, | |
| 41 dbus::Bus* bus); | |
| 42 protected: | |
| 43 // Create() should be used instead. | |
| 44 DebugDaemonClient(); | |
| 45 | |
| 46 private: | |
| 47 DISALLOW_COPY_AND_ASSIGN(DebugDaemonClient); | |
| 48 }; | |
| 49 | |
| 50 } // namespace chromeos | |
| 51 | |
| 52 #endif // CHROME_BROWSER_CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_ | |
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