src/common/uuid.h

   1 #ifndef _BABELTRACE_COMMON_UUID_H
   2 #define _BABELTRACE_COMMON_UUID_H
   3
   4 /*
   5  * Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <stdint.h>
  27 #include "common/macros.h"
  28
  29 #define BT_UUID_STR_LEN 36 /* Excludes final \0 */
  30 #define BT_UUID_LEN 16
  31 #define BT_UUID_VER 4
  32
  33 #define BT_UUID_FMT \
  34         "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "-%02" SCNx8 \
  35         "%02" SCNx8 "-%02" SCNx8 "%02" SCNx8 "-%02" SCNx8 "%02" SCNx8 \
  36         "-%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 "%02" SCNx8 \
  37         "%02" SCNx8
  38
  39 #define BT_UUID_FMT_VALUES(uuid) \
  40         (uuid)[0], (uuid)[1], (uuid)[2], (uuid)[3], (uuid)[4], (uuid)[5], \
  41         (uuid)[6], (uuid)[7], (uuid)[8], (uuid)[9], (uuid)[10], (uuid)[11], \
  42         (uuid)[12], (uuid)[13], (uuid)[14], (uuid)[15]
  43
  44 #define BT_UUID_SCAN_VALUES(uuid) \
  45         &(uuid)[0], &(uuid)[1], &(uuid)[2], &(uuid)[3], &(uuid)[4], &(uuid)[5], \
  46         &(uuid)[6], &(uuid)[7], &(uuid)[8], &(uuid)[9], &(uuid)[10], &(uuid)[11], \
  47         &(uuid)[12], &(uuid)[13], &(uuid)[14], &(uuid)[15]
  48
  49 typedef uint8_t bt_uuid_t[BT_UUID_LEN];
  50
  51 BT_HIDDEN void bt_uuid_generate(bt_uuid_t uuid_out);
  52 BT_HIDDEN void bt_uuid_to_str(const bt_uuid_t uuid_in, char *str_out);
  53 BT_HIDDEN int bt_uuid_from_str(const char *str_in, bt_uuid_t uuid_out);
  54 BT_HIDDEN int bt_uuid_compare(const bt_uuid_t uuid_a, const bt_uuid_t uuid_b);
  55 BT_HIDDEN void bt_uuid_copy(bt_uuid_t uuid_dest, const bt_uuid_t uuid_src);
  56
  57 #endif /* _BABELTRACE_COMMON_UUID_H */