| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef THIRD_PARTY_NEARBY_PRESENCE_SCAN_CALLBACK_H_ |
| #define THIRD_PARTY_NEARBY_PRESENCE_SCAN_CALLBACK_H_ |
| |
| #include <cstdint> |
| |
| #include "absl/functional/any_invocable.h" |
| #include "internal/platform/logging.h" |
| #include "presence/presence_device.h" |
| |
| namespace nearby { |
| namespace presence { |
| |
| // Unique Scan Session Identifier. |
| using ScanSessionId = uint64_t; |
| |
| // Callers would provide the implementation of these callbacks. If callers |
| // don't need these signal updates, they can skip with the provided default |
| // empty functions. |
| struct ScanCallback { |
| // Updates client with the result of start scanning. |
| absl::AnyInvocable<void(absl::Status)> start_scan_cb = [](absl::Status) {}; |
| |
| // Reports a {@link PresenceDevice} being discovered. |
| absl::AnyInvocable<void(PresenceDevice)> on_discovered_cb = |
| [](PresenceDevice) {}; |
| |
| // Reports a {@link PresenceDevice} information(distance, and etc) |
| // changed. |
| absl::AnyInvocable<void(PresenceDevice)> on_updated_cb = [](PresenceDevice) { |
| }; |
| |
| // Reports a {@link PresenceDevice} is no longer within range. |
| absl::AnyInvocable<void(PresenceDevice)> on_lost_cb = [](PresenceDevice) {}; |
| }; |
| |
| // Unique Broadcast Session Identifier. |
| using BroadcastSessionId = uint64_t; |
| |
| // Callers would provide the implementation of these callbacks. If callers |
| // don't need these signal updates, they can skip with the provided default |
| // empty functions. |
| struct BroadcastCallback { |
| absl::AnyInvocable<void(absl::Status)> start_broadcast_cb = [](absl::Status) { |
| }; |
| }; |
| |
| } // namespace presence |
| } // namespace nearby |
| |
| #endif // THIRD_PARTY_NEARBY_PRESENCE_SCAN_CALLBACK_H_ |