diff options
Diffstat (limited to 'src/common/uuid.h')
-rw-r--r-- | src/common/uuid.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/common/uuid.h b/src/common/uuid.h index 0ffa37e7c..2353179d8 100644 --- a/src/common/uuid.h +++ b/src/common/uuid.h @@ -5,6 +5,7 @@ #pragma once #include <string> +#include <string_view> #include "common/common_types.h" @@ -12,12 +13,30 @@ namespace Common { constexpr u128 INVALID_UUID{{0, 0}}; +/** + * Converts a hex string to a 128-bit unsigned integer. + * + * The hex string can be formatted in lowercase or uppercase, with or without the "0x" prefix. + * + * This function will assert and return INVALID_UUID under the following conditions: + * - If the hex string is more than 32 characters long + * - If the hex string contains non-hexadecimal characters + * + * @param hex_string Hexadecimal string + * + * @returns A 128-bit unsigned integer if successfully converted, INVALID_UUID otherwise. + */ +[[nodiscard]] u128 HexStringToU128(std::string_view hex_string); + struct UUID { // UUIDs which are 0 are considered invalid! u128 uuid; UUID() = default; constexpr explicit UUID(const u128& id) : uuid{id} {} constexpr explicit UUID(const u64 lo, const u64 hi) : uuid{{lo, hi}} {} + explicit UUID(std::string_view hex_string) { + uuid = HexStringToU128(hex_string); + } [[nodiscard]] constexpr explicit operator bool() const { return uuid != INVALID_UUID; @@ -50,3 +69,14 @@ struct UUID { static_assert(sizeof(UUID) == 16, "UUID is an invalid size!"); } // namespace Common + +namespace std { + +template <> +struct hash<Common::UUID> { + size_t operator()(const Common::UUID& uuid) const noexcept { + return uuid.uuid[1] ^ uuid.uuid[0]; + } +}; + +} // namespace std |