src/connectivity/bluetooth/core/bt-host/gap/peer_metrics.h

// Copyright 2021 The Fuchsia 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 SRC_CONNECTIVITY_BLUETOOTH_CORE_BT_HOST_GAP_PEER_METRICS_H_
#define SRC_CONNECTIVITY_BLUETOOTH_CORE_BT_HOST_GAP_PEER_METRICS_H_

#include <lib/sys/inspect/cpp/component.h>

#include "src/connectivity/bluetooth/core/bt-host/common/metrics.h"

namespace bt::gap {

// Represents the shared metric counters updated across all peers
class PeerMetrics {
 public:
  static constexpr const char* kInspectNodeName = "metrics";

  PeerMetrics() = default;

  // Attach metrics node to |parent| peer cache inspect node.
  void AttachInspect(inspect::Node& parent);

  // Log LE bonding success.
  void LogLeBondSuccessEvent() { le_bond_success_.Add(); }

  // Log LE bonding failure.
  void LogLeBondFailureEvent() { le_bond_failure_.Add(); }

  // Log LE connection event.
  void LogLeConnection() { le_connections_.Add(); }

  // Log LE disconnection event.
  void LogLeDisconnection() { le_disconnections_.Add(); }

  // Log BrEdr bonding success.
  void LogBrEdrBondSuccessEvent() { bredr_bond_success_.Add(); }

  // Log BrEdr bonding failure.
  void LogBrEdrBondFailureEvent() { bredr_bond_failure_.Add(); }

  // Log BrEdr connection event.
  void LogBrEdrConnection() { bredr_connections_.Add(); }

  // Log BrEdr disconnection event.
  void LogBrEdrDisconnection() { bredr_disconnections_.Add(); }

 private:
  inspect::Node metrics_node_;
  inspect::Node metrics_le_node_;
  inspect::Node metrics_bredr_node_;

  UintMetricCounter le_bond_success_;
  UintMetricCounter le_bond_failure_;
  UintMetricCounter le_connections_;
  UintMetricCounter le_disconnections_;
  UintMetricCounter bredr_bond_success_;
  UintMetricCounter bredr_bond_failure_;
  UintMetricCounter bredr_connections_;
  UintMetricCounter bredr_disconnections_;

  DISALLOW_COPY_AND_ASSIGN_ALLOW_MOVE(PeerMetrics);
};

}  // namespace bt::gap

#endif  // SRC_CONNECTIVITY_BLUETOOTH_CORE_BT_HOST_GAP_PEER_METRICS_H_