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 @@ | |||
| 5 | #pragma once | 5 | #pragma once |
| 6 | 6 | ||
| 7 | #include <string> | 7 | #include <string> |
| 8 | #include <string_view> | ||
| 8 | 9 | ||
| 9 | #include "common/common_types.h" | 10 | #include "common/common_types.h" |
| 10 | 11 | ||
| @@ -12,12 +13,30 @@ namespace Common { | |||
| 12 | 13 | ||
| 13 | constexpr u128 INVALID_UUID{{0, 0}}; | 14 | constexpr u128 INVALID_UUID{{0, 0}}; |
| 14 | 15 | ||
| 16 | /** | ||
| 17 | * Converts a hex string to a 128-bit unsigned integer. | ||
| 18 | * | ||
| 19 | * The hex string can be formatted in lowercase or uppercase, with or without the "0x" prefix. | ||
| 20 | * | ||
| 21 | * This function will assert and return INVALID_UUID under the following conditions: | ||
| 22 | * - If the hex string is more than 32 characters long | ||
| 23 | * - If the hex string contains non-hexadecimal characters | ||
| 24 | * | ||
| 25 | * @param hex_string Hexadecimal string | ||
| 26 | * | ||
| 27 | * @returns A 128-bit unsigned integer if successfully converted, INVALID_UUID otherwise. | ||
| 28 | */ | ||
| 29 | [[nodiscard]] u128 HexStringToU128(std::string_view hex_string); | ||
| 30 | |||
| 15 | struct UUID { | 31 | struct UUID { |
| 16 | // UUIDs which are 0 are considered invalid! | 32 | // UUIDs which are 0 are considered invalid! |
| 17 | u128 uuid; | 33 | u128 uuid; |
| 18 | UUID() = default; | 34 | UUID() = default; |
| 19 | constexpr explicit UUID(const u128& id) : uuid{id} {} | 35 | constexpr explicit UUID(const u128& id) : uuid{id} {} |
| 20 | constexpr explicit UUID(const u64 lo, const u64 hi) : uuid{{lo, hi}} {} | 36 | constexpr explicit UUID(const u64 lo, const u64 hi) : uuid{{lo, hi}} {} |
| 37 | explicit UUID(std::string_view hex_string) { | ||
| 38 | uuid = HexStringToU128(hex_string); | ||
| 39 | } | ||
| 21 | 40 | ||
| 22 | [[nodiscard]] constexpr explicit operator bool() const { | 41 | [[nodiscard]] constexpr explicit operator bool() const { |
| 23 | return uuid != INVALID_UUID; | 42 | return uuid != INVALID_UUID; |
| @@ -50,3 +69,14 @@ struct UUID { | |||
| 50 | static_assert(sizeof(UUID) == 16, "UUID is an invalid size!"); | 69 | static_assert(sizeof(UUID) == 16, "UUID is an invalid size!"); |
| 51 | 70 | ||
| 52 | } // namespace Common | 71 | } // namespace Common |
| 72 | |||
| 73 | namespace std { | ||
| 74 | |||
| 75 | template <> | ||
| 76 | struct hash<Common::UUID> { | ||
| 77 | size_t operator()(const Common::UUID& uuid) const noexcept { | ||
| 78 | return uuid.uuid[1] ^ uuid.uuid[0]; | ||
| 79 | } | ||
| 80 | }; | ||
| 81 | |||
| 82 | } // namespace std | ||