device/bluetooth/bluetooth_discovery_session.cc

   1 // Copyright 2014 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 #include "device/bluetooth/bluetooth_discovery_session.h"
   6
   7 #include "base/bind.h"
   8 #include "device/bluetooth/bluetooth_adapter.h"
   9
  10 namespace device {
  11
  12 BluetoothDiscoverySession::BluetoothDiscoverySession(
  13     scoped_refptr<BluetoothAdapter> adapter)
  14     : active_(true), adapter_(adapter), weak_ptr_factory_(this) {
  15   DCHECK(adapter_.get());
  16 }
  17
  18 BluetoothDiscoverySession::~BluetoothDiscoverySession() {
  19   if (active_) {
  20     Stop(base::Bind(&base::DoNothing), base::Bind(&base::DoNothing));
  21     MarkAsInactive();
  22   }
  23 }
  24
  25 bool BluetoothDiscoverySession::IsActive() const {
  26   return active_;
  27 }
  28
  29 void BluetoothDiscoverySession::Stop(
  30     const base::Closure& callback,
  31     const ErrorCallback& error_callback) {
  32   if (!active_) {
  33     LOG(WARNING) << "Discovery session not active. Cannot stop.";
  34     error_callback.Run();
  35     return;
  36   }
  37   VLOG(1) << "Stopping device discovery session.";
  38   adapter_->RemoveDiscoverySession(
  39       base::Bind(&BluetoothDiscoverySession::OnStop,
  40                  weak_ptr_factory_.GetWeakPtr(),
  41                  callback),
  42       error_callback);
  43 }
  44
  45 void BluetoothDiscoverySession::OnStop(const base::Closure& callback) {
  46   MarkAsInactive();
  47   callback.Run();
  48 }
  49
  50 void BluetoothDiscoverySession::MarkAsInactive() {
  51   if (!active_)
  52     return;
  53   active_ = false;
  54   adapter_->DiscoverySessionBecameInactive(this);
  55 }
  56
  57 }  // namespace device