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