tdesktop/Telegram/SourceFiles/api/api_hash.h

58 lines
1.5 KiB
C++

/*
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
namespace Main {
class Session;
} // namespace Main
namespace Api {
[[nodiscard]] int32 CountStickersHash(
not_null<Main::Session*> session,
bool checkOutdatedInfo = false);
[[nodiscard]] int32 CountRecentStickersHash(
not_null<Main::Session*> session,
bool attached = false);
[[nodiscard]] int32 CountFavedStickersHash(not_null<Main::Session*> session);
[[nodiscard]] int32 CountFeaturedStickersHash(
not_null<Main::Session*> session);
[[nodiscard]] int32 CountSavedGifsHash(not_null<Main::Session*> session);
[[nodiscard]] inline uint32 HashInit() {
return 0;
}
inline void HashUpdate(uint32 &already, uint32 value) {
already = (already * 20261) + uint32(value);
}
inline void HashUpdate(uint32 &already, int32 value) {
HashUpdate(already, uint32(value));
}
inline void HashUpdate(uint32 &already, uint64 value) {
HashUpdate(already, uint32(value >> 32));
HashUpdate(already, uint32(value & 0xFFFFFFFFULL));
}
[[nodiscard]] inline int32 HashFinalize(uint32 already) {
return int32(already & 0x7FFFFFFF);
}
template <typename IntRange>
[[nodiscard]] inline int32 CountHash(IntRange &&range) {
auto result = HashInit();
for (const auto value : range) {
HashUpdate(result, value);
}
return HashFinalize(result);
}
} // namespace Api