tdesktop/Telegram/SourceFiles/data/data_msg_id.h

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "data/data_peer_id.h"
struct MsgId {
constexpr MsgId() noexcept = default;
constexpr MsgId(int64 value) noexcept : bare(value) {
}
friend inline constexpr auto operator<=>(MsgId, MsgId) = default;
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[[nodiscard]] constexpr explicit operator bool() const noexcept {
return (bare != 0);
}
[[nodiscard]] constexpr bool operator!() const noexcept {
return !bare;
}
[[nodiscard]] constexpr MsgId operator-() const noexcept {
return -bare;
}
constexpr MsgId operator++() noexcept {
return ++bare;
}
constexpr MsgId operator++(int) noexcept {
return bare++;
}
constexpr MsgId operator--() noexcept {
return --bare;
}
constexpr MsgId operator--(int) noexcept {
return bare--;
}
int64 bare = 0;
};
Q_DECLARE_METATYPE(MsgId);
[[nodiscard]] inline constexpr MsgId operator+(MsgId a, MsgId b) noexcept {
return MsgId(a.bare + b.bare);
}
[[nodiscard]] inline constexpr MsgId operator-(MsgId a, MsgId b) noexcept {
return MsgId(a.bare - b.bare);
}
constexpr auto StartClientMsgId = MsgId(0x01 - (1LL << 58));
constexpr auto EndClientMsgId = MsgId(-(1LL << 57));
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constexpr auto ServerMaxMsgId = MsgId(1LL << 56);
constexpr auto ScheduledMsgIdsRange = (1LL << 32);
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constexpr auto ShowAtUnreadMsgId = MsgId(0);
constexpr auto SpecialMsgIdShift = EndClientMsgId.bare;
constexpr auto ShowAtTheEndMsgId = MsgId(SpecialMsgIdShift + 1);
constexpr auto SwitchAtTopMsgId = MsgId(SpecialMsgIdShift + 2);
constexpr auto ShowAndStartBotMsgId = MsgId(SpecialMsgIdShift + 4);
constexpr auto ShowForChooseMessagesMsgId = MsgId(SpecialMsgIdShift + 6);
static_assert(SpecialMsgIdShift + 0xFF < 0);
static_assert(-(SpecialMsgIdShift + 0xFF) > ServerMaxMsgId);
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[[nodiscard]] constexpr inline bool IsClientMsgId(MsgId id) noexcept {
return (id >= StartClientMsgId && id < EndClientMsgId);
}
[[nodiscard]] constexpr inline bool IsServerMsgId(MsgId id) noexcept {
return (id > 0 && id < ServerMaxMsgId);
}
struct MsgRange {
constexpr MsgRange() noexcept = default;
constexpr MsgRange(MsgId from, MsgId till) noexcept
: from(from)
, till(till) {
}
friend inline constexpr bool operator==(MsgRange, MsgRange) = default;
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MsgId from = 0;
MsgId till = 0;
};
struct FullMsgId {
constexpr FullMsgId() noexcept = default;
constexpr FullMsgId(PeerId peer, MsgId msg) noexcept
: peer(peer), msg(msg) {
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}
FullMsgId(ChannelId channelId, MsgId msgId) = delete;
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friend inline constexpr auto operator<=>(FullMsgId, FullMsgId) = default;
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constexpr explicit operator bool() const noexcept {
return msg != 0;
}
constexpr bool operator!() const noexcept {
return msg == 0;
}
PeerId peer = 0;
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MsgId msg = 0;
};
Q_DECLARE_METATYPE(FullMsgId);
struct GlobalMsgId {
FullMsgId itemId;
uint64 sessionUniqueId = 0;
friend inline constexpr auto operator<=>(
GlobalMsgId,
GlobalMsgId) = default;
constexpr explicit operator bool() const noexcept {
return itemId && sessionUniqueId;
}
constexpr bool operator!() const noexcept {
return !itemId || !sessionUniqueId;
}
};
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namespace std {
template <>
struct hash<MsgId> : private hash<int64> {
size_t operator()(MsgId value) const noexcept {
return hash<int64>::operator()(value.bare);
}
};
} // namespace std