pd.if.org Git - uuid/blob - pduuid.h

   1 #ifndef PD_UUID_H_
   2 #define PD_UUID_H_ 1
   3
   4 #include <stdint.h>
   5
   6 #define PD_UUID_BINLEN 16
   7 #define PD_UUID_STRLEN 36
   8
   9 struct pd_uuid_state {
  10         uint64_t        timestamp, node;
  11         uint16_t        clock_sequence;
  12         int     available;
  13         void    *rng_state;
  14         unsigned char uuid[16];
  15
  16         int     (*get_lock)(void *);
  17         int     (*release_lock)(void *);
  18         void    *lock_data;
  19         int     (*read_state)(struct pd_uuid_state *s);
  20         int     (*save_state)(struct pd_uuid_state *s);
  21         /* TODO hook for a random number generator? */
  22         unsigned long (*random_bytes)(void *out, unsigned long outlen,
  23                         void *prng_state);
  24 };
  25
  26 struct pd_uuid {
  27         uint8_t data[16];
  28 };
  29 typedef struct pd_uuid pd_uuid_t;
  30
  31 int pd_uuid_init_state(struct pd_uuid_state *s);
  32 int pd_uuid_init(struct pd_uuid_state *s, int f);
  33 int pd_uuid_make_v1(struct pd_uuid_state *s, pd_uuid_t *uuid);
  34 int pd_uuid_make_v1mc(struct pd_uuid_state *s, pd_uuid_t *uuid);
  35 int pd_uuid_make_v4(struct pd_uuid_state *s, pd_uuid_t *uuid);
  36 int pd_uuid_make_v3(struct pd_uuid_state *s, pd_uuid_t *uuid, pd_uuid_t *ns, void *data, int len);
  37 int pd_uuid_make_v5(struct pd_uuid_state *s, pd_uuid_t *uuid, pd_uuid_t *ns, void *data, int len);
  38
  39 int pd_uuid_copy(pd_uuid_t *src, pd_uuid_t *dst);
  40 int pd_uuid_cmp(pd_uuid_t *a, pd_uuid_t *b);
  41
  42 int pd_set_uuid_hash(pd_uuid_t *s, void *hash, int version);
  43
  44 int pd_uuid_set_string(pd_uuid_t *uuid, char *s);
  45 char *pd_uuid_get_string(pd_uuid_t *uuid, char *s);
  46
  47 unsigned long pd_uuid_rng_get_bytes(unsigned char *out, unsigned long outlen);
  48
  49 pd_uuid_t pd_uuid_ns_x500;
  50 pd_uuid_t pd_uuid_ns_url;
  51 pd_uuid_t pd_uuid_ns_dns;
  52 pd_uuid_t pd_uuid_ns_oid;
  53
  54 #endif