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102 lines
3.1 KiB
102 lines
3.1 KiB
// |
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// Copyright (C) 2015 Google, Inc. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at: |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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#include "service/gatt_client.h" |
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#include <base/logging.h> |
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using std::lock_guard; |
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using std::mutex; |
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namespace bluetooth { |
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// GattClient implementation |
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// ======================================================== |
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GattClient::GattClient(const UUID& uuid, int client_id) |
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: app_identifier_(uuid), client_id_(client_id) {} |
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GattClient::~GattClient() { |
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// Automatically unregister the client. |
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VLOG(1) << "GattClient unregistering client: " << client_id_; |
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hal::BluetoothGattInterface::Get() |
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->GetClientHALInterface() |
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->unregister_client(client_id_); |
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} |
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const UUID& GattClient::GetAppIdentifier() const { return app_identifier_; } |
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int GattClient::GetInstanceId() const { return client_id_; } |
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// GattClientFactory implementation |
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// ======================================================== |
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GattClientFactory::GattClientFactory() { |
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hal::BluetoothGattInterface::Get()->AddClientObserver(this); |
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} |
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GattClientFactory::~GattClientFactory() { |
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hal::BluetoothGattInterface::Get()->RemoveClientObserver(this); |
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} |
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bool GattClientFactory::RegisterInstance(const UUID& uuid, |
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const RegisterCallback& callback) { |
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VLOG(1) << __func__ << " - UUID: " << uuid.ToString(); |
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lock_guard<mutex> lock(pending_calls_lock_); |
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if (pending_calls_.find(uuid) != pending_calls_.end()) { |
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LOG(ERROR) << "GATT client with given UUID already registered - " |
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<< "UUID: " << uuid.ToString(); |
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return false; |
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} |
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const btgatt_client_interface_t* hal_iface = |
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hal::BluetoothGattInterface::Get()->GetClientHALInterface(); |
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bt_uuid_t app_uuid = uuid.GetBlueDroid(); |
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if (hal_iface->register_client(app_uuid) != BT_STATUS_SUCCESS) return false; |
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pending_calls_[uuid] = callback; |
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return true; |
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} |
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void GattClientFactory::RegisterClientCallback( |
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hal::BluetoothGattInterface* /* gatt_iface */, int status, int client_id, |
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const bt_uuid_t& app_uuid) { |
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UUID uuid(app_uuid); |
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auto iter = pending_calls_.find(uuid); |
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if (iter == pending_calls_.end()) { |
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VLOG(1) << "Ignoring callback for unknown app_id: " << uuid.ToString(); |
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return; |
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} |
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bool success = (status == BT_STATUS_SUCCESS); |
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BLEStatus result = success ? BLE_STATUS_SUCCESS : BLE_STATUS_FAILURE; |
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// No need to construct a client if the call wasn't successful. |
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std::unique_ptr<GattClient> client; |
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if (success) client.reset(new GattClient(uuid, client_id)); |
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// Notify the result via the result callback. |
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iter->second(result, uuid, std::move(client)); |
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pending_calls_.erase(iter); |
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} |
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} // namespace bluetooth
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