device/bluetooth/bluetooth_discovery_session_outcome.h

   1 // Copyright 2015 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 DEVICE_BLUETOOTH_BLUETOOTH_DISCOVERY_SESSION_OUTCOME_H_
   6 #define DEVICE_BLUETOOTH_BLUETOOTH_DISCOVERY_SESSION_OUTCOME_H_
   7
   8 namespace device {
   9
  10 // This enum is returned by various internal discovery session methods in
  11 // BluetoothAdapter in order to histogram the causes of discovery failures.
  12 enum class UMABluetoothDiscoverySessionOutcome {
  13   SUCCESS = 0,
  14   UNKNOWN = 1,  // Used when the platform has more information that isn't
  15                 // reflected in any of these enum values or hasn't been wired
  16                 // through.
  17   NOT_IMPLEMENTED = 2,
  18   ADAPTER_NOT_PRESENT = 3,
  19   ADAPTER_REMOVED = 4,  // Returned if the adapter disappeared during a callback
  20                         // chain.
  21   NOT_ACTIVE = 5,
  22   REMOVE_WITH_PENDING_REQUEST = 6,
  23   ACTIVE_SESSION_NOT_IN_ADAPTER = 7,
  24   FAILED = 8,
  25
  26   // ChromeOS-specific failures:
  27   CHROMEOS_DBUS_UNKNOWN_ADAPTER = 9,
  28   CHROMEOS_DBUS_NO_RESPONSE = 10,
  29   CHROMEOS_DBUS_IN_PROGRESS = 11,
  30   CHROMEOS_DBUS_NOT_READY = 12,
  31   CHROMEOS_DBUS_FAILED_MAYBE_UNSUPPORTED_TRANSPORT = 13,
  32   // NOTE: Add new outcomes immediately above this line. Make sure to update the
  33   // enum list in tools/metrics/histograms/histograms.xml accordingly.
  34   COUNT
  35 };
  36
  37 }  // namespace device
  38
  39 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_DISCOVERY_SESSION_OUTCOME_H_