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Commit 24b4bc80 authored by Arman Uguray's avatar Arman Uguray
Browse files

service: Implement IBluetoothLowEnergy advertising 

This CL implements the IBluetoothLowEnergy Binder APIs for
multi-advertising.

Bug: 23793954
Change-Id: I6519f86b9e528d23d2c1f46618188d1123686856
parent 869fa4d4

system/service/ipc/binder/bluetooth_low_energy_binder_server.cpp

+81 −4
Original line number Diff line number Diff line
@@ -100,13 +100,90 @@ void BluetoothLowEnergyBinderServer::StartMultiAdvertising( 
    const bluetooth::AdvertiseData& advertise_data,

    const bluetooth::AdvertiseData& scan_response,

    const bluetooth::AdvertiseSettings& settings) {

  LOG(WARNING) << "Not implemented";

  // TODO(armansito): implement

  VLOG(2) << __func__;

  std::lock_guard<std::mutex> lock(maps_lock_);



  auto iter = cif_to_client_.find(client_if);

  if (iter == cif_to_client_.end()) {

    LOG(ERROR) << "Unknown client_if: " << client_if;

    return;

  }



  android::sp<IBluetoothLowEnergyCallback> cb = cif_to_cb_.Get(client_if);

  if (!cb.get()) {

    LOG(ERROR) << "Client was unregistered - client_if: " << client_if;

    return;

  }



  // Create a weak pointer and pass that to the callback to prevent a potential

  // use after free.

  bluetooth::AdvertiseSettings settings_copy = settings;

  android::wp<BluetoothLowEnergyBinderServer> weak_ptr_to_this(this);

  auto callback = [&](bluetooth::BLEStatus status) {

    auto sp_to_this = weak_ptr_to_this.promote();

    if (!sp_to_this.get()) {

      VLOG(2) << "BluetoothLowEnergyBinderServer was deleted";

      return;

    }



    std::lock_guard<std::mutex> lock(maps_lock_);



    cb->OnMultiAdvertiseCallback(status, true /* is_start */, settings_copy);

  };



  std::shared_ptr<bluetooth::LowEnergyClient> client = iter->second;

  if (client->StartAdvertising(

      settings, advertise_data, scan_response, callback))

    return;



  LOG(ERROR) << "Failed to initiate call to start advertising";



  // Notify error in oneway callback.

  cb->OnMultiAdvertiseCallback(

      bluetooth::BLE_STATUS_FAILURE, true /* is_start */, settings_copy);

}



void BluetoothLowEnergyBinderServer::StopMultiAdvertising(int client_if) {

  LOG(WARNING) << "Not implemented";

  // TODO(armansito): implement

  VLOG(2) << __func__;

  std::lock_guard<std::mutex> lock(maps_lock_);



  auto iter = cif_to_client_.find(client_if);

  if (iter == cif_to_client_.end()) {

    LOG(ERROR) << "Unknown client_if: " << client_if;

    return;

  }



  android::sp<IBluetoothLowEnergyCallback> cb = cif_to_cb_.Get(client_if);

  if (!cb.get()) {

    LOG(ERROR) << "Client was unregistered - client_if: " << client_if;

    return;

  }



  // Create a weak pointer and pass that to the callback to prevent a potential

  // use after free.

  android::wp<BluetoothLowEnergyBinderServer> weak_ptr_to_this(this);

  std::shared_ptr<bluetooth::LowEnergyClient> client = iter->second;

  bluetooth::AdvertiseSettings settings_copy = client->settings();

  auto callback = [&](bluetooth::BLEStatus status) {

    auto sp_to_this = weak_ptr_to_this.promote();

    if (!sp_to_this.get()) {

      VLOG(2) << "BluetoothLowEnergyBinderServer was deleted";

      return;

    }



    std::lock_guard<std::mutex> lock(maps_lock_);



    cb->OnMultiAdvertiseCallback(status, false /* is_start */, settings_copy);

  };



  if (client->StopAdvertising(callback))

    return;



  LOG(ERROR) << "Failed to initiate call to start advertising";



  // Notify error in oneway callback.

  cb->OnMultiAdvertiseCallback(

      bluetooth::BLE_STATUS_FAILURE, false/* is_start */, settings_copy);

}



void BluetoothLowEnergyBinderServer::OnRemoteCallbackRemoved(const int& key) {