Files
nearby/connections/medium_selector.h
T
hai007 28acece858 C++20 fixes.
Structs with user-declared constructors are no longer aggregates.
Remove the user-declared constructors.

Bug: chromium:1284275
PiperOrigin-RevId: 450762391
2022-05-24 13:58:08 -07:00

82 lines
2.4 KiB
C++

// 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 CORE_MEDIUM_SELECTOR_H_
#define CORE_MEDIUM_SELECTOR_H_
#include "proto/connections_enums.pb.h"
namespace location {
namespace nearby {
namespace connections {
using Medium = location::nearby::proto::connections::Medium;
// Generic type: allows definition of a feature T for every Medium.
template <typename T>
struct MediumSelector {
T bluetooth;
T ble;
T web_rtc;
T wifi_lan;
T wifi_hotspot;
constexpr bool Any(T value) const {
return bluetooth == value || ble == value || web_rtc == value ||
wifi_lan == value || wifi_hotspot == value;
}
constexpr bool All(T value) const {
return bluetooth == value && ble == value && web_rtc == value &&
wifi_lan == value && wifi_hotspot == value;
}
constexpr int Count(T value) const {
int count = 0;
if (bluetooth == value) count++;
if (ble == value) count++;
if (wifi_lan == value) count++;
if (wifi_hotspot == value) count++;
if (web_rtc == value) count++;
return count;
}
constexpr MediumSelector& SetAll(T value) {
bluetooth = value;
ble = value;
web_rtc = value;
wifi_lan = value;
wifi_hotspot = value;
return *this;
}
std::vector<Medium> GetMediums(T value) const {
std::vector<Medium> mediums;
// Mediums are sorted in order of decreasing preference.
if (wifi_hotspot == value) mediums.push_back(Medium::WIFI_HOTSPOT);
if (wifi_lan == value) mediums.push_back(Medium::WIFI_LAN);
if (web_rtc == value) mediums.push_back(Medium::WEB_RTC);
if (bluetooth == value) mediums.push_back(Medium::BLUETOOTH);
if (ble == value) mediums.push_back(Medium::BLE);
return mediums;
}
};
using BooleanMediumSelector = MediumSelector<bool>;
} // namespace connections
} // namespace nearby
} // namespace location
#endif // CORE_MEDIUM_SELECTOR_H_