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uuid.h
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1 /*-------------------------------------------------------------------------
2  *
3  * uuid.h
4  * Header file for the "uuid" ADT. In C, we use the name pg_uuid_t,
5  * to avoid conflicts with any uuid_t type that might be defined by
6  * the system headers.
7  *
8  * Copyright (c) 2007-2022, PostgreSQL Global Development Group
9  *
10  * src/include/utils/uuid.h
11  *
12  *-------------------------------------------------------------------------
13  */
14 #ifndef UUID_H
15 #define UUID_H
16 
17 /* uuid size in bytes */
18 #define UUID_LEN 16
19 
20 typedef struct pg_uuid_t
21 {
22  unsigned char data[UUID_LEN];
24 
25 /* fmgr interface macros */
26 static inline Datum
28 {
29  return PointerGetDatum(X);
30 }
31 
32 #define PG_RETURN_UUID_P(X) return UUIDPGetDatum(X)
33 
34 static inline pg_uuid_t *
36 {
37  return (pg_uuid_t *) DatumGetPointer(X);
38 }
39 
40 #define PG_GETARG_UUID_P(X) DatumGetUUIDP(PG_GETARG_DATUM(X))
41 
42 #endif /* UUID_H */
static Datum PointerGetDatum(const void *X)
Definition: postgres.h:670
uintptr_t Datum
Definition: postgres.h:412
static Pointer DatumGetPointer(Datum X)
Definition: postgres.h:660
Definition: uuid.h:21
unsigned char data[UUID_LEN]
Definition: uuid.h:22
struct pg_uuid_t pg_uuid_t
#define UUID_LEN
Definition: uuid.h:18
static Datum UUIDPGetDatum(const pg_uuid_t *X)
Definition: uuid.h:27
static pg_uuid_t * DatumGetUUIDP(Datum X)
Definition: uuid.h:35