You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.1 KiB
87 lines
2.1 KiB
/*
|
|
* Copyright 2019 The Android Open Source Project
|
|
*
|
|
* 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
|
|
*
|
|
* http://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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstdint>
|
|
|
|
namespace bluetooth {
|
|
namespace l2cap {
|
|
|
|
struct SignalId {
|
|
public:
|
|
constexpr SignalId(uint8_t value) : value_(value) {}
|
|
constexpr SignalId() : value_(1) {}
|
|
~SignalId() = default;
|
|
|
|
uint8_t Value() const {
|
|
return value_;
|
|
}
|
|
|
|
bool IsValid() const {
|
|
return value_ != 0;
|
|
}
|
|
|
|
friend bool operator==(const SignalId& lhs, const SignalId& rhs);
|
|
friend bool operator!=(const SignalId& lhs, const SignalId& rhs);
|
|
|
|
struct SignalId& operator++(); // Prefix increment operator.
|
|
struct SignalId operator++(int); // Postfix increment operator.
|
|
struct SignalId& operator--(); // Prefix decrement operator.
|
|
struct SignalId operator--(int); // Postfix decrement operator.
|
|
|
|
private:
|
|
uint8_t value_;
|
|
};
|
|
|
|
constexpr SignalId kInvalidSignalId{0};
|
|
constexpr SignalId kInitialSignalId{1};
|
|
|
|
inline bool operator==(const SignalId& lhs, const SignalId& rhs) {
|
|
return lhs.value_ == rhs.value_;
|
|
}
|
|
|
|
inline bool operator!=(const SignalId& lhs, const SignalId& rhs) {
|
|
return !(lhs == rhs);
|
|
}
|
|
|
|
inline struct SignalId& SignalId::operator++() {
|
|
value_++;
|
|
if (value_ == 0) value_++;
|
|
return *this;
|
|
}
|
|
|
|
inline struct SignalId SignalId::operator++(int) {
|
|
struct SignalId tmp = *this;
|
|
++*this;
|
|
return tmp;
|
|
}
|
|
|
|
inline struct SignalId& SignalId::operator--() {
|
|
value_--;
|
|
if (value_ == 0) value_ = 0xff;
|
|
return *this;
|
|
}
|
|
|
|
inline struct SignalId SignalId::operator--(int) {
|
|
struct SignalId tmp = *this;
|
|
--*this;
|
|
return tmp;
|
|
}
|
|
|
|
} // namespace l2cap
|
|
} // namespace bluetooth
|