src/common/uuid.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
   5  */
   6
   7 #ifndef _BABELTRACE_COMMON_UUID_H
   8 #define _BABELTRACE_COMMON_UUID_H
   9
  10 #include <stdint.h>
  11 #include "common/macros.h"
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17 #define BT_UUID_STR_LEN 36 /* Excludes final \0 */
  18 #define BT_UUID_LEN 16
  19 #define BT_UUID_VER 4
  20
  21 #define BT_UUID_FMT \
  22         "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "-%02" SCNx8 \
  23         "%02" SCNx8 "-%02" SCNx8 "%02" SCNx8 "-%02" SCNx8 "%02" SCNx8 \
  24         "-%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 \
  25         "%02" SCNx8
  26
  27 #define BT_UUID_FMT_VALUES(uuid) \
  28         (uuid)[0], (uuid)[1], (uuid)[2], (uuid)[3], (uuid)[4], (uuid)[5], \
  29         (uuid)[6], (uuid)[7], (uuid)[8], (uuid)[9], (uuid)[10], (uuid)[11], \
  30         (uuid)[12], (uuid)[13], (uuid)[14], (uuid)[15]
  31
  32 #define BT_UUID_SCAN_VALUES(uuid) \
  33         &(uuid)[0], &(uuid)[1], &(uuid)[2], &(uuid)[3], &(uuid)[4], &(uuid)[5], \
  34         &(uuid)[6], &(uuid)[7], &(uuid)[8], &(uuid)[9], &(uuid)[10], &(uuid)[11], \
  35         &(uuid)[12], &(uuid)[13], &(uuid)[14], &(uuid)[15]
  36
  37 typedef uint8_t bt_uuid_t[BT_UUID_LEN];
  38
  39 BT_HIDDEN void bt_uuid_generate(bt_uuid_t uuid_out);
  40 BT_HIDDEN void bt_uuid_to_str(const bt_uuid_t uuid_in, char *str_out);
  41 BT_HIDDEN int bt_uuid_from_str(const char *str_in, bt_uuid_t uuid_out);
  42 BT_HIDDEN int bt_uuid_compare(const bt_uuid_t uuid_a, const bt_uuid_t uuid_b);
  43 BT_HIDDEN void bt_uuid_copy(bt_uuid_t uuid_dest, const bt_uuid_t uuid_src);
  44
  45 #ifdef __cplusplus
  46 }
  47 #endif
  48
  49 #endif /* _BABELTRACE_COMMON_UUID_H */