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Reformat uuid

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This commit is contained in:
Abdelrahman Said
2025-12-29 21:41:10 +00:00
parent ed72ccc139
commit 4333b16090
2 changed files with 27 additions and 27 deletions
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52
src/uuid/uuid.c
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@@ -11,48 +11,48 @@
typedef struct uuid4 UUID4; typedef struct uuid4 UUID4;
struct uuid4 { struct uuid4 {
u64 high; u64 high;
u64 low; u64 low;
}; };
wapp_intern UUID4 generate_uuid4(void); wapp_intern UUID4 generate_uuid4(void);
wapp_intern void uuid4_to_uuid(const UUID4* uuid4, WUUID *uuid); wapp_intern void uuid4_to_uuid(const UUID4* uuid4, WUUID *uuid);
WUUID *wapp_uuid_init_uuid4(WUUID *uuid) { WUUID *wapp_uuid_init_uuid4(WUUID *uuid) {
wapp_debug_assert(uuid != NULL, "`uuid` should not be NULL"); wapp_debug_assert(uuid != NULL, "`uuid` should not be NULL");
UUID4 uuid4 = generate_uuid4(); UUID4 uuid4 = generate_uuid4();
uuid4_to_uuid(&uuid4, uuid); uuid4_to_uuid(&uuid4, uuid);
return uuid; return uuid;
} }
wapp_intern UUID4 generate_uuid4(void) { wapp_intern UUID4 generate_uuid4(void) {
wapp_persist XOR256State state = {0}; wapp_persist XOR256State state = {0};
wapp_persist b8 initialised = false; wapp_persist b8 initialised = false;
if (!initialised) { if (!initialised) {
initialised = true; initialised = true;
state = wapp_prng_xorshift_init_state(); state = wapp_prng_xorshift_init_state();
} }
UUID4 uuid = (UUID4){ UUID4 uuid = (UUID4){
.high = wapp_prng_xorshift_256(&state), .high = wapp_prng_xorshift_256(&state),
.low = wapp_prng_xorshift_256(&state), .low = wapp_prng_xorshift_256(&state),
}; };
uuid.high = (uuid.high & 0xffffffffffff0fff) | 0x0000000000004000; uuid.high = (uuid.high & 0xffffffffffff0fff) | 0x0000000000004000;
uuid.low = (uuid.low & 0x3fffffffffffffff) | 0x8000000000000000; uuid.low = (uuid.low & 0x3fffffffffffffff) | 0x8000000000000000;
return uuid; return uuid;
} }
wapp_intern void uuid4_to_uuid(const UUID4* uuid4, WUUID *uuid) { wapp_intern void uuid4_to_uuid(const UUID4* uuid4, WUUID *uuid) {
u64 group1 = uuid4->high >> 32; u64 group1 = uuid4->high >> 32;
u64 group2 = (uuid4->high << 32) >> 48; u64 group2 = (uuid4->high << 32) >> 48;
u64 group3 = (uuid4->high << 48) >> 48; u64 group3 = (uuid4->high << 48) >> 48;
u64 group4 = uuid4->low >> 48; u64 group4 = uuid4->low >> 48;
u64 group5 = (uuid4->low << 16) >> 16; u64 group5 = (uuid4->low << 16) >> 16;
wapp_str8_format(&(uuid->uuid), UUID_STR_FORMAT, group1, group2, group3, group4, group5); wapp_str8_format(&(uuid->uuid), UUID_STR_FORMAT, group1, group2, group3, group4, group5);
} }

2
src/uuid/uuid.h
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@@ -17,7 +17,7 @@ BEGIN_C_LINKAGE
typedef struct wapp_uuid WUUID; typedef struct wapp_uuid WUUID;
struct wapp_uuid { struct wapp_uuid {
Str8 uuid; Str8 uuid;
}; };
#define wapp_uuid_gen_uuid4() *(wapp_uuid_init_uuid4(&wapp_uuid_create())) #define wapp_uuid_gen_uuid4() *(wapp_uuid_init_uuid4(&wapp_uuid_create()))