39 lines
1010 B
C++
39 lines
1010 B
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2024
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#pragma once
|
|
|
|
#include "td/utils/common.h"
|
|
|
|
#include <atomic>
|
|
|
|
namespace td {
|
|
|
|
class UniqueId {
|
|
public:
|
|
enum Type : uint8 { Default, DcAuth, GetConfig, BindKey, TempFile };
|
|
static uint64 next() {
|
|
return next(Default, 0);
|
|
}
|
|
static uint64 next(Type type) {
|
|
return next(type, 0);
|
|
}
|
|
static uint64 next(Type type, uint8 key) {
|
|
// TODO: this is VERY ineffective
|
|
static std::atomic<uint64> current_id{1};
|
|
return ((current_id.fetch_add(1, std::memory_order_relaxed)) << 16) | (static_cast<uint64>(type) << 8) | key;
|
|
}
|
|
|
|
static uint8 extract_key(uint64 id) {
|
|
return static_cast<uint8>(id);
|
|
}
|
|
static Type extract_type(uint64 id) {
|
|
return static_cast<Type>(static_cast<uint8>(id >> 8));
|
|
}
|
|
};
|
|
|
|
} // namespace td
|