mirror of
https://github.com/kidfromjupiter/nearby.git
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96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
#ifndef CORE_V2_OPTIONS_H_
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#define CORE_V2_OPTIONS_H_
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#include "core_v2/strategy.h"
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#include "platform_v2/base/byte_array.h"
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#include "proto/connections_enums.pb.h"
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#include "proto/connections_enums.pb.h"
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namespace location {
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namespace nearby {
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namespace connections {
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using Medium = ::location::nearby::proto::connections::Medium;
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// Generic type: allows definition of a feature T for every Medium.
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template <typename T>
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struct MediumSelector {
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T bluetooth;
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T ble;
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T web_rtc;
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T wifi_lan;
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constexpr MediumSelector() = default;
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constexpr MediumSelector(const MediumSelector&) = default;
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constexpr MediumSelector& operator=(const MediumSelector&) = default;
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constexpr bool Any(T value) const {
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return bluetooth == value || ble == value || web_rtc == value ||
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wifi_lan == value;
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}
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constexpr bool All(T value) const {
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return bluetooth == value && ble == value && web_rtc == value &&
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wifi_lan == value;
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}
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constexpr int Count(T value) const {
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int count = 0;
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if (bluetooth == value) count++;
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if (ble == value) count++;
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if (wifi_lan == value) count++;
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if (web_rtc == value) count++;
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return count;
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}
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constexpr MediumSelector& SetAll(T value) {
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bluetooth = value;
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ble = value;
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web_rtc = value;
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wifi_lan = value;
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return *this;
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}
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std::vector<Medium> GetMediums(T value) const {
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std::vector<Medium> mediums;
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// Mediums are sorted in order of decreasing preference.
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if (wifi_lan == value) mediums.push_back(Medium::WIFI_LAN);
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if (web_rtc == value) mediums.push_back(Medium::WEB_RTC);
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if (ble == value) mediums.push_back(Medium::BLE);
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if (bluetooth == value) mediums.push_back(Medium::BLUETOOTH);
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return mediums;
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}
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};
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// Feature On/Off switch for mediums.
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using BooleanMediumSelector = MediumSelector<bool>;
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// Connection Options: used for both Advertising and Discovery.
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// All fields are mutable, to make the type copy-assignable.
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struct ConnectionOptions {
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Strategy strategy;
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BooleanMediumSelector allowed{BooleanMediumSelector().SetAll(true)};
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bool auto_upgrade_bandwidth;
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bool enforce_topology_constraints;
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ByteArray remote_bluetooth_mac_address;
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// Verify if ConnectionOptions is in a not-initialized (Empty) state.
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bool Empty() const { return strategy.IsNone(); }
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// Bring ConnectionOptions to a not-initialized (Empty) state.
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void Clear() { strategy.Clear(); }
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// Returns a copy, but if no mediums are allowed, allowes all mediums.
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ConnectionOptions CompatibleOptions() const {
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ConnectionOptions result = *this;
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if (!allowed.Any(true)) {
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result.allowed.SetAll(true);
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}
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return result;
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}
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std::vector<Medium> GetMediums() const { return allowed.GetMediums(true); }
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};
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} // namespace connections
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} // namespace nearby
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} // namespace location
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#endif // CORE_V2_OPTIONS_H_
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