metrics: Add dbus interface for GetRandomPerfOutput

chromeos/dbus/debug_daemon_client.h

 // Copyright (c) 2012 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_DBUS_DEBUG_DAEMON_CLIENT_H_
 #define CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_
 
 #include <map>
 
 #include "base/callback.h"
 #include "base/files/file.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/task_runner.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/dbus_client.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
-namespace metrics {
-class PerfDataProto;
-}
-
 namespace chromeos {
 
 // DebugDaemonClient is used to communicate with the debug daemon.
 class CHROMEOS_EXPORT DebugDaemonClient : public DBusClient {
  public:
   ~DebugDaemonClient() override;
 
   // Called once GetDebugLogs() is complete. Takes one parameter:
   // - succeeded: was the logs stored successfully.
   typedef base::Callback<void(bool succeeded)> GetDebugLogsCallback;
@@ skipping 54 matching lines @@
   // Gets information about network interfaces as json.
   virtual void GetNetworkInterfaces(
       const GetNetworkInterfacesCallback& callback) = 0;
 
   // Called once GetPerfData() is complete only if the the data is successfully
   // obtained from debugd.
   typedef base::Callback<void(const std::vector<uint8>& data)>
       GetPerfDataCallback;
 
   // Runs perf for |duration| seconds and returns data collected.
+  // TODO(sque): This is being replaced by GetPerfOutput(). Remove this function
+  // and the above callback typedef when the new function is running.
   virtual void GetPerfData(uint32_t duration,
                            const GetPerfDataCallback& callback) = 0;
 
+  // Called once GetPerfOutput() is complete only if the the data is
+  // successfully obtained from debugd.
+  // Arguments:
+  // - The status from running perf.
+  // - Output from "perf record", in PerfDataProto format.
+  // - Output from "perf stat", in PerfStatProto format.
+  using GetPerfOutputCallback =
+      base::Callback<void(int status,
+                          const std::vector<uint8>& perf_data,
+                          const std::vector<uint8>& perf_stat)>;
+
+  // Runs perf for |duration| seconds and returns data collected.
+  virtual void GetPerfOutput(uint32_t duration,
+                             const GetPerfOutputCallback& callback) = 0;
+
   // Callback type for GetScrubbedLogs(), GetAllLogs() or GetUserLogFiles().
   typedef base::Callback<void(bool succeeded,
                               const std::map<std::string, std::string>& logs)>
       GetLogsCallback;
 
   // Gets scrubbed logs from debugd.
   virtual void GetScrubbedLogs(const GetLogsCallback& callback) = 0;
 
   // Gets all logs collected by debugd.
   virtual void GetAllLogs(const GetLogsCallback& callback) = 0;
@@ skipping 87 matching lines @@
   // Create() should be used instead.
   DebugDaemonClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DebugDaemonClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_