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ffe60014 DG |
1 | /* |
2 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to | |
6 | * deal in the Software without restriction, including without limitation the | |
7 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | |
8 | * sell copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
20 | * IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #ifndef LTTNG_UUID_H | |
24 | #define LTTNG_UUID_H | |
25 | ||
26 | #include <config.h> | |
27 | /* | |
28 | * Includes final \0. | |
29 | */ | |
30 | #define UUID_STR_LEN 37 | |
d0b96690 | 31 | #define UUID_LEN 16 |
ffe60014 DG |
32 | |
33 | #ifdef LTTNG_HAVE_LIBUUID | |
34 | #include <uuid/uuid.h> | |
35 | ||
d0b96690 DG |
36 | /* |
37 | * uuid_out is of len UUID_LEN. | |
38 | */ | |
ffe60014 DG |
39 | static inline |
40 | int lttng_uuid_generate(unsigned char *uuid_out) | |
41 | { | |
42 | uuid_generate(uuid_out); | |
43 | return 0; | |
44 | } | |
45 | ||
46 | #elif defined(LTTNG_HAVE_LIBC_UUID) | |
47 | #include <uuid.h> | |
48 | #include <stdint.h> | |
49 | ||
d0b96690 DG |
50 | /* |
51 | * uuid_out is of len UUID_LEN. | |
52 | */ | |
ffe60014 DG |
53 | static inline |
54 | int lttng_uuid_generate(unsigned char *uuid_out) | |
55 | { | |
56 | uint32_t status; | |
57 | ||
58 | uuid_create((uuid_t *) uuid_out, &status); | |
59 | if (status == uuid_s_ok) | |
60 | return 0; | |
61 | else | |
62 | return -1; | |
63 | } | |
64 | ||
65 | #else | |
66 | #error "LTTng-Tools needs to have a UUID generator configured." | |
67 | #endif | |
68 | ||
69 | #endif /* LTTNG_UUID_H */ |