| // Copyright 2017 The Chromium 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 CHROMEOS_COMPONENTS_TETHER_KEEP_ALIVE_SCHEDULER_H_ |
| #define CHROMEOS_COMPONENTS_TETHER_KEEP_ALIVE_SCHEDULER_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/optional.h" |
| #include "base/timer/timer.h" |
| #include "chromeos/components/tether/active_host.h" |
| #include "chromeos/components/tether/device_status_util.h" |
| #include "chromeos/components/tether/keep_alive_operation.h" |
| |
| namespace chromeos { |
| |
| namespace device_sync { |
| class DeviceSyncClient; |
| } // namespace device_sync |
| |
| namespace secure_channel { |
| class SecureChannelClient; |
| } // namespace secure_channel |
| |
| namespace tether { |
| |
| class HostScanCache; |
| class DeviceIdTetherNetworkGuidMap; |
| |
| // Schedules keep-alive messages to be sent when this device is connected to a |
| // remote device's tether hotspot. When a device connects, a keep-alive message |
| // is sent immediately, then another one is scheduled every 4 minutes until the |
| // device disconnects. |
| class KeepAliveScheduler : public ActiveHost::Observer, |
| public KeepAliveOperation::Observer { |
| public: |
| KeepAliveScheduler( |
| device_sync::DeviceSyncClient* device_sync_client, |
| secure_channel::SecureChannelClient* secure_channel_client, |
| ActiveHost* active_host, |
| HostScanCache* host_scan_cache, |
| DeviceIdTetherNetworkGuidMap* device_id_tether_network_guid_map); |
| virtual ~KeepAliveScheduler(); |
| |
| // ActiveHost::Observer: |
| void OnActiveHostChanged( |
| const ActiveHost::ActiveHostChangeInfo& change_info) override; |
| |
| // KeepAliveOperation::Observer: |
| void OnOperationFinished( |
| multidevice::RemoteDeviceRef remote_device, |
| std::unique_ptr<DeviceStatus> device_status) override; |
| |
| private: |
| friend class KeepAliveSchedulerTest; |
| |
| KeepAliveScheduler( |
| device_sync::DeviceSyncClient* device_sync_client, |
| secure_channel::SecureChannelClient* secure_channel_client, |
| ActiveHost* active_host, |
| HostScanCache* host_scan_cache, |
| DeviceIdTetherNetworkGuidMap* device_id_tether_network_guid_map, |
| std::unique_ptr<base::RepeatingTimer> timer); |
| |
| void SendKeepAliveTickle(); |
| |
| static const uint32_t kKeepAliveIntervalMinutes; |
| |
| device_sync::DeviceSyncClient* device_sync_client_; |
| secure_channel::SecureChannelClient* secure_channel_client_; |
| ActiveHost* active_host_; |
| HostScanCache* host_scan_cache_; |
| DeviceIdTetherNetworkGuidMap* device_id_tether_network_guid_map_; |
| |
| std::unique_ptr<base::RepeatingTimer> timer_; |
| base::Optional<multidevice::RemoteDeviceRef> active_host_device_; |
| std::unique_ptr<KeepAliveOperation> keep_alive_operation_; |
| |
| base::WeakPtrFactory<KeepAliveScheduler> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(KeepAliveScheduler); |
| }; |
| |
| } // namespace tether |
| |
| } // namespace chromeos |
| |
| #endif // CHROMEOS_COMPONENTS_TETHER_KEEP_ALIVE_SCHEDULER_H_ |