161 lines
3.4 KiB
C
161 lines
3.4 KiB
C
/*
|
|
* This file Copyright (C) 2017 Mnemosyne LLC
|
|
*
|
|
* It may be used under the GNU GPL versions 2 or 3
|
|
* or any future license endorsed by Mnemosyne LLC.
|
|
*
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
#ifndef __has_feature
|
|
#define __has_feature(x) 0
|
|
#endif
|
|
|
|
#ifndef __has_extension
|
|
#define __has_extension __has_feature
|
|
#endif
|
|
|
|
#ifndef __has_attribute
|
|
#define __has_attribute(x) 0
|
|
#endif
|
|
|
|
#ifndef __has_builtin
|
|
#define __has_builtin(x) 0
|
|
#endif
|
|
|
|
#ifdef __GNUC__
|
|
#define TR_GNUC_CHECK_VERSION(major, minor) \
|
|
(__GNUC__ > (major) || \
|
|
(__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
|
|
#else
|
|
#define TR_GNUC_CHECK_VERSION(major, minor) 0
|
|
#endif
|
|
|
|
#ifdef __UCLIBC__
|
|
#define TR_UCLIBC_CHECK_VERSION(major, minor, micro) \
|
|
(__UCLIBC_MAJOR__ > (major) || \
|
|
(__UCLIBC_MAJOR__ == (major) && __UCLIBC_MINOR__ > (minor)) || \
|
|
(__UCLIBC_MAJOR__ == (major) && __UCLIBC_MINOR__ == (minor) && __UCLIBC_SUBLEVEL__ >= (micro)))
|
|
#else
|
|
#define TR_UCLIBC_CHECK_VERSION(major, minor, micro) 0
|
|
#endif
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
#ifndef UNUSED
|
|
#if __has_attribute(__unused__) || TR_GNUC_CHECK_VERSION(2, 7)
|
|
#define UNUSED __attribute__((__unused__))
|
|
#else
|
|
#define UNUSED
|
|
#endif
|
|
#endif
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
#if __has_builtin(__builtin_expect) || TR_GNUC_CHECK_VERSION(3, 0)
|
|
#define TR_LIKELY(x) __builtin_expect(!!(x), 1)
|
|
#define TR_UNLIKELY(x) __builtin_expect(!!(x), 0)
|
|
#else
|
|
#define TR_LIKELY(x) (x)
|
|
#define TR_UNLIKELY(x) (x)
|
|
#endif
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
#if __has_attribute(__noreturn__) || TR_GNUC_CHECK_VERSION(2, 5)
|
|
#define TR_NORETURN __attribute__((__noreturn__))
|
|
#elif defined(_MSC_VER)
|
|
#define TR_NORETURN __declspec(noreturn)
|
|
#else
|
|
#define TR_NORETURN
|
|
#endif
|
|
|
|
#if __has_attribute(__deprecated__) || TR_GNUC_CHECK_VERSION(3, 1)
|
|
#define TR_DEPRECATED __attribute__((__deprecated__))
|
|
#elif defined(_MSC_VER)
|
|
#define TR_DEPRECATED __declspec(deprecated)
|
|
#else
|
|
#define TR_DEPRECATED
|
|
#endif
|
|
|
|
#if __has_attribute(__format__) || TR_GNUC_CHECK_VERSION(2, 3)
|
|
#define TR_GNUC_PRINTF(fmt, args) __attribute__((__format__(printf, fmt, args)))
|
|
#else
|
|
#define TR_GNUC_PRINTF(fmt, args)
|
|
#endif
|
|
|
|
#if __has_attribute(__nonnull__) || TR_GNUC_CHECK_VERSION(3, 3)
|
|
#define TR_GNUC_NONNULL(...) __attribute__((__nonnull__(__VA_ARGS__)))
|
|
#else
|
|
#define TR_GNUC_NONNULL(...)
|
|
#endif
|
|
|
|
#if __has_attribute(__sentinel__) || TR_GNUC_CHECK_VERSION(4, 3)
|
|
#define TR_GNUC_NULL_TERMINATED __attribute__((__sentinel__))
|
|
#else
|
|
#define TR_GNUC_NULL_TERMINATED
|
|
#endif
|
|
|
|
#if __has_attribute(__hot__) || TR_GNUC_CHECK_VERSION(4, 3)
|
|
#define TR_GNUC_HOT __attribute__((__hot__))
|
|
#else
|
|
#define TR_GNUC_HOT
|
|
#endif
|
|
|
|
#if __has_attribute(__malloc__) || TR_GNUC_CHECK_VERSION(2, 96)
|
|
#define TR_GNUC_MALLOC __attribute__((__malloc__))
|
|
#else
|
|
#define TR_GNUC_MALLOC
|
|
#endif
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
/**
|
|
* @def TR_STATIC_ASSERT
|
|
* @brief This helper allows to perform static checks at compile time
|
|
*/
|
|
#if defined(static_assert)
|
|
#define TR_STATIC_ASSERT static_assert
|
|
#elif __has_feature(c_static_assert) || __has_extension(c_static_assert)
|
|
#define TR_STATIC_ASSERT _Static_assert
|
|
#else
|
|
#define TR_STATIC_ASSERT(x, msg) \
|
|
{ \
|
|
typedef char __tr_static_check__[(x) ? 1 : -1] UNUSED; \
|
|
}
|
|
#endif
|
|
|
|
/* Sometimes the system defines MAX/MIN, sometimes not.
|
|
In the latter case, define those here since we will use them */
|
|
|
|
#ifndef MAX
|
|
#define MAX(a, b) ((a) > (b) ? (a) : (b))
|
|
#endif
|
|
|
|
#ifndef MIN
|
|
#define MIN(a, b) ((a) > (b) ? (b) : (a))
|
|
#endif
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
#define SHA_DIGEST_LENGTH 20
|
|
|
|
#define TR_INET6_ADDRSTRLEN 46
|
|
|
|
#define TR_BAD_SIZE ((size_t)-1)
|