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/*
* Copyright 2015-2017 Leonid Yuriev <leo@yuriev.ru>
* and other libmdbx authors: please see AUTHORS file.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#pragma once
/* *INDENT-OFF* */
/* clang-format off */
#ifndef __GNUC_PREREQ
# if defined(__GNUC__) && defined(__GNUC_MINOR__)
# define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
# else
# define __GNUC_PREREQ(maj, min) (0)
# endif
#endif /* __GNUC_PREREQ */
#ifndef __CLANG_PREREQ
# ifdef __clang__
# define __CLANG_PREREQ(maj,min) \
((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min))
# else
# define __CLANG_PREREQ(maj,min) (0)
# endif
#endif /* __CLANG_PREREQ */
#ifndef __GLIBC_PREREQ
# if defined(__GLIBC__) && defined(__GLIBC_MINOR__)
# define __GLIBC_PREREQ(maj, min) \
((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))
# else
# define __GLIBC_PREREQ(maj, min) (0)
# endif
#endif /* __GLIBC_PREREQ */
#ifndef __has_attribute
# define __has_attribute(x) (0)
#endif
#ifndef __has_feature
# define __has_feature(x) (0)
#endif
#ifndef __has_extension
# define __has_extension(x) (0)
#endif
#ifndef __has_builtin
# define __has_builtin(x) (0)
#endif
#if __has_feature(thread_sanitizer)
# define __SANITIZE_THREAD__ 1
#endif
#if __has_feature(address_sanitizer)
# define __SANITIZE_ADDRESS__ 1
#endif
/*----------------------------------------------------------------------------*/
#ifndef __extern_C
# ifdef __cplusplus
# define __extern_C extern "C"
# else
# define __extern_C
# endif
#endif /* __extern_C */
#ifndef __cplusplus
# ifndef bool
# define bool _Bool
# endif
# ifndef true
# define true (1)
# endif
# ifndef false
# define false (0)
# endif
#endif
#if !defined(nullptr) && !defined(__cplusplus) || (__cplusplus < 201103L && !defined(_MSC_VER))
# define nullptr NULL
#endif
/*----------------------------------------------------------------------------*/
#if !defined(__thread) && (defined(_MSC_VER) || defined(__DMC__))
# define __thread __declspec(thread)
#endif /* __thread */
#ifndef __alwaysinline
# if defined(__GNUC__) || __has_attribute(always_inline)
# define __alwaysinline __inline __attribute__((always_inline))
# elif defined(_MSC_VER)
# define __alwaysinline __forceinline
# else
# define __alwaysinline
# endif
#endif /* __alwaysinline */
#ifndef __noinline
# if defined(__GNUC__) || __has_attribute(noinline)
# define __noinline __attribute__((noinline))
# elif defined(_MSC_VER)
# define __noinline __declspec(noinline)
# elif defined(__SUNPRO_C) || defined(__sun) || defined(sun)
# define __noinline inline
# elif !defined(__INTEL_COMPILER)
# define __noinline /* FIXME ? */
# endif
#endif /* __noinline */
#ifndef __must_check_result
# if defined(__GNUC__) || __has_attribute(warn_unused_result)
# define __must_check_result __attribute__((warn_unused_result))
# else
# define __must_check_result
# endif
#endif /* __must_check_result */
#ifndef __deprecated
# if defined(__GNUC__) || __has_attribute(deprecated)
# define __deprecated __attribute__((deprecated))
# elif defined(_MSC_VER)
# define __deprecated __declspec(deprecated)
# else
# define __deprecated
# endif
#endif /* __deprecated */
#if !defined(__noop) && !defined(_MSC_VER)
# ifdef __cplusplus
static inline void __noop_consume_args() {}
template <typename First, typename... Rest>
static inline void
__noop_consume_args(const First &first, const Rest &... rest) {
(void) first; __noop_consume_args(rest...);
}
# define __noop(...) __noop_consume_args(__VA_ARGS__)
# elif defined(__GNUC__) && (!defined(__STRICT_ANSI__) || !__STRICT_ANSI__)
static __inline void __noop_consume_args(void* anchor, ...) {
(void) anchor;
}
# define __noop(...) __noop_consume_args(0, ##__VA_ARGS__)
# else
# define __noop(...) do {} while(0)
# endif
#endif /* __noop */
#ifndef __fallthrough
# if __GNUC_PREREQ(7, 0) || __has_attribute(fallthrough)
# define __fallthrough __attribute__((fallthrough))
# else
# define __fallthrough __noop()
# endif
#endif /* __fallthrough */
#ifndef __unreachable
# if __GNUC_PREREQ(4,5)
# define __unreachable() __builtin_unreachable()
# elif defined(_MSC_VER)
# define __unreachable() __assume(0)
# else
# define __unreachable() __noop()
# endif
#endif /* __unreachable */
#ifndef __prefetch
# if defined(__GNUC__) || defined(__clang__)
# define __prefetch(ptr) __builtin_prefetch(ptr)
# else
# define __prefetch(ptr) __noop(ptr)
# endif
#endif /* __prefetch */
#ifndef __aligned
# if defined(__GNUC__) || __has_attribute(aligned)
# define __aligned(N) __attribute__((aligned(N)))
# elif defined(_MSC_VER)
# define __aligned(N) __declspec(align(N))
# else
# define __aligned(N)
# endif
#endif /* __aligned */
#ifndef __noreturn
# if defined(__GNUC__) || __has_attribute(noreturn)
# define __noreturn __attribute__((noreturn))
# elif defined(_MSC_VER)
# define __noreturn __declspec(noreturn)
# else
# define __noreturn
# endif
#endif /* __noreturn */
#ifndef __nothrow
# if defined(__GNUC__) || __has_attribute(nothrow)
# define __nothrow __attribute__((nothrow))
# elif defined(_MSC_VER) && defined(__cplusplus)
# define __nothrow __declspec(nothrow)
# else
# define __nothrow
# endif
#endif /* __nothrow */
#ifndef __pure_function
/* Many functions have no effects except the return value and their
* return value depends only on the parameters and/or global variables.
* Such a function can be subject to common subexpression elimination
* and loop optimization just as an arithmetic operator would be.
* These functions should be declared with the attribute pure. */
# if defined(__GNUC__) || __has_attribute(pure)
# define __pure_function __attribute__((pure))
# else
# define __pure_function
# endif
#endif /* __pure_function */
#ifndef __const_function
/* Many functions do not examine any values except their arguments,
* and have no effects except the return value. Basically this is just
* slightly more strict class than the PURE attribute, since function
* is not allowed to read global memory.
*
* Note that a function that has pointer arguments and examines the
* data pointed to must not be declared const. Likewise, a function
* that calls a non-const function usually must not be const.
* It does not make sense for a const function to return void. */
# if defined(__GNUC__) || __has_attribute(const)
# define __const_function __attribute__((const))
# else
# define __const_function
# endif
#endif /* __const_function */
#ifndef __dll_hidden
# if defined(__GNUC__) || __has_attribute(visibility)
# define __hidden __attribute__((visibility("hidden")))
# else
# define __hidden
# endif
#endif /* __dll_hidden */
#ifndef __optimize
# if defined(__OPTIMIZE__)
# if defined(__clang__) && !__has_attribute(optimize)
# define __optimize(ops)
# elif defined(__GNUC__) || __has_attribute(optimize)
# define __optimize(ops) __attribute__((optimize(ops)))
# else
# define __optimize(ops)
# endif
# else
# define __optimize(ops)
# endif
#endif /* __optimize */
#ifndef __hot
# if defined(__OPTIMIZE__)
# if defined(__clang__) && !__has_attribute(hot)
/* just put frequently used functions in separate section */
# define __hot __attribute__((section("text.hot"))) __optimize("O3")
# elif defined(__GNUC__) || __has_attribute(hot)
# define __hot __attribute__((hot)) __optimize("O3")
# else
# define __hot __optimize("O3")
# endif
# else
# define __hot
# endif
#endif /* __hot */
#ifndef __cold
# if defined(__OPTIMIZE__)
# if defined(__clang__) && !__has_attribute(cold)
/* just put infrequently used functions in separate section */
# define __cold __attribute__((section("text.unlikely"))) __optimize("Os")
# elif defined(__GNUC__) || __has_attribute(cold)
# define __cold __attribute__((cold)) __optimize("Os")
# else
# define __cold __optimize("Os")
# endif
# else
# define __cold
# endif
#endif /* __cold */
#ifndef __flatten
# if defined(__OPTIMIZE__) && (defined(__GNUC__) || __has_attribute(flatten))
# define __flatten __attribute__((flatten))
# else
# define __flatten
# endif
#endif /* __flatten */
#ifndef likely
# if defined(__GNUC__) || defined(__clang__)
# define likely(cond) __builtin_expect(!!(cond), 1)
# else
# define likely(x) (x)
# endif
#endif /* likely */
#ifndef unlikely
# if defined(__GNUC__) || defined(__clang__)
# define unlikely(cond) __builtin_expect(!!(cond), 0)
# else
# define unlikely(x) (x)
# endif
#endif /* unlikely */
/* Wrapper around __func__, which is a C99 feature */
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
# define mdbx_func_ __func__
#elif (defined(__GNUC__) && __GNUC__ >= 2) || defined(__clang__) || defined(_MSC_VER)
# define mdbx_func_ __FUNCTION__
#else
# define mdbx_func_ "<mdbx_unknown>"
#endif
/*----------------------------------------------------------------------------*/
#if defined(USE_VALGRIND)
# include <valgrind/memcheck.h>
# ifndef VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE
/* LY: available since Valgrind 3.10 */
# define VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
# define VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
# endif
#else
# define VALGRIND_CREATE_MEMPOOL(h,r,z)
# define VALGRIND_DESTROY_MEMPOOL(h)
# define VALGRIND_MEMPOOL_TRIM(h,a,s)
# define VALGRIND_MEMPOOL_ALLOC(h,a,s)
# define VALGRIND_MEMPOOL_FREE(h,a)
# define VALGRIND_MEMPOOL_CHANGE(h,a,b,s)
# define VALGRIND_MAKE_MEM_NOACCESS(a,s)
# define VALGRIND_MAKE_MEM_DEFINED(a,s)
# define VALGRIND_MAKE_MEM_UNDEFINED(a,s)
# define VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
# define VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
# define VALGRIND_CHECK_MEM_IS_ADDRESSABLE(a,s) (0)
# define VALGRIND_CHECK_MEM_IS_DEFINED(a,s) (0)
# define RUNNING_ON_VALGRIND (0)
#endif /* USE_VALGRIND */
#ifdef __SANITIZE_ADDRESS__
# include <sanitizer/asan_interface.h>
#else
# define ASAN_POISON_MEMORY_REGION(addr, size) \
((void)(addr), (void)(size))
# define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
((void)(addr), (void)(size))
#endif /* __SANITIZE_ADDRESS__ */
/*----------------------------------------------------------------------------*/
#ifndef ARRAY_LENGTH
# ifdef __cplusplus
template <typename T, size_t N>
char (&__ArraySizeHelper(T (&array)[N]))[N];
# define ARRAY_LENGTH(array) (sizeof(::__ArraySizeHelper(array)))
# else
# define ARRAY_LENGTH(array) (sizeof(array) / sizeof(array[0]))
# endif
#endif /* ARRAY_LENGTH */
#ifndef ARRAY_END
# define ARRAY_END(array) (&array[ARRAY_LENGTH(array)])
#endif /* ARRAY_END */
#ifndef STRINGIFY
# define STRINGIFY_HELPER(x) #x
# define STRINGIFY(x) STRINGIFY_HELPER(x)
#endif /* STRINGIFY */
#ifndef offsetof
# define offsetof(type, member) __builtin_offsetof(type, member)
#endif /* offsetof */
#ifndef container_of
# define container_of(ptr, type, member) \
((type *)((char *)(ptr) - offsetof(type, member)))
#endif /* container_of */
#define MDBX_TETRAD(a, b, c, d) \
((uint32_t)(a) << 24 | (uint32_t)(b) << 16 | (uint32_t)(c) << 8 | (d))
#define MDBX_STRING_TETRAD(str) MDBX_TETRAD(str[0], str[1], str[2], str[3])
#define FIXME "FIXME: " __FILE__ ", " STRINGIFY(__LINE__)
#ifndef STATIC_ASSERT_MSG
# if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
|| __has_feature(c_static_assert)
# define STATIC_ASSERT_MSG(expr, msg) _Static_assert(expr, msg)
# elif defined(static_assert)
# define STATIC_ASSERT_MSG(expr, msg) static_assert(expr, msg)
# elif defined(_MSC_VER)
# include <crtdbg.h>
# define STATIC_ASSERT_MSG(expr, msg) _STATIC_ASSERT(expr)
# else
# define STATIC_ASSERT_MSG(expr, msg) switch (0) {case 0:case (expr):;}
# endif
#endif /* STATIC_ASSERT */
#ifndef STATIC_ASSERT
# define STATIC_ASSERT(expr) STATIC_ASSERT_MSG(expr, #expr)
#endif
/* *INDENT-ON* */
/* clang-format on */
|
