lib: graph: add "self" and some "private" APIs
[babeltrace.git] / include / babeltrace / babeltrace-internal.h
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1#ifndef _BABELTRACE_INTERNAL_H
2#define _BABELTRACE_INTERNAL_H
3
eb31c5e6 4/*
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5 * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@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.
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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.
eb31c5e6 24 */
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25#include <stdio.h>
26#include <glib.h>
11ac6674 27#include <stdint.h>
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28#include <stdlib.h>
29#include <errno.h>
3d9990ac 30#include <babeltrace/compat/string-internal.h>
c55a9f58 31#include <babeltrace/types.h>
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32
33#define PERROR_BUFLEN 200
70bd0a12 34
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35#ifndef likely
36# ifdef __GNUC__
37# define likely(x) __builtin_expect(!!(x), 1)
38# else
39# define likely(x) (!!(x))
40# endif
41#endif
42
43#ifndef unlikely
44# ifdef __GNUC__
45# define unlikely(x) __builtin_expect(!!(x), 0)
46# else
47# define unlikely(x) (!!(x))
48# endif
49#endif
90bf3cef 50
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51#ifndef min
52#define min(a, b) (((a) < (b)) ? (a) : (b))
53#endif
54
55#ifndef max
56#define max(a, b) (((a) > (b)) ? (a) : (b))
57#endif
58
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59#ifndef max_t
60#define max_t(type, a, b) \
61 ((type) (a) > (type) (b) ? (type) (a) : (type) (b))
62#endif
63
64/*
65 * Memory allocation zeroed
66 */
67#define zmalloc(x) calloc(1, x)
68
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69/*
70 * BT_HIDDEN: set the hidden attribute for internal functions
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71 * On Windows, symbols are local unless explicitly exported,
72 * see https://gcc.gnu.org/wiki/Visibility
5d6c80a5 73 */
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74#if defined(_WIN32) || defined(__CYGWIN__)
75#define BT_HIDDEN
76#else
5d6c80a5 77#define BT_HIDDEN __attribute__((visibility("hidden")))
675860f4 78#endif
5d6c80a5 79
20ccd9e1 80#ifndef __STRINGIFY
6fbd4105 81#define __STRINGIFY(x) #x
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82#endif
83
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84#define TOSTRING(x) __STRINGIFY(x)
85
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86#define BT_UNUSED __attribute__((unused))
87
70bd0a12 88#endif
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