libmdbx/reopen.h

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/*
* Copyright (c) 2015,2016 Leonid Yuriev <leo@yuriev.ru>.
* Copyright (c) 2015,2016 Peter-Service R&D LLC.
*
* This file is part of ReOpenMDBX.
*
* ReOpenMDBX is free software; you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* ReOpenMDBX is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
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#ifndef _REOPEN_H
#define _REOPEN_H
#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 */
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#ifndef __has_attribute
# define __has_attribute(x) (0)
#endif
#if !defined(__thread) && (defined(_MSC_VER) || defined(__DMC__))
# define __thread __declspec(thread)
#endif
#ifndef __forceinline
# if defined(__GNUC__) || defined(__clang__)
# define __forceinline __inline __attribute__((always_inline))
# elif ! defined(_MSC_VER)
# define __forceinline
# endif
#endif /* __forceinline */
#ifndef __noinline
# if defined(__GNUC__) || defined(__clang__)
# define __noinline __attribute__((noinline))
# elif defined(_MSC_VER)
# define __noinline __declspec(noinline)
# endif
#endif /* __noinline */
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#ifndef __must_check_result
# if defined(__GNUC__) || defined(__clang__)
# define __must_check_result __attribute__((warn_unused_result))
# else
# define __must_check_result
# endif
#endif /* __must_check_result */
#ifndef __hot
# if defined(NDEBUG) && (defined(__GNUC__) && !defined(__clang__))
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# define __hot __attribute__((hot, optimize("O3")))
# elif defined(__GNUC__)
/* cland case, just put frequently used functions in separate section */
# define __hot __attribute__((section("text.hot")))
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# else
# define __hot
# endif
#endif /* __hot */
#ifndef __cold
# if defined(NDEBUG) && (defined(__GNUC__) && !defined(__clang__))
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# define __cold __attribute__((cold, optimize("Os")))
# elif defined(__GNUC__)
/* cland case, just put infrequently used functions in separate section */
# define __cold __attribute__((section("text.unlikely")))
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# else
# define __cold
# endif
#endif /* __cold */
#ifndef __flatten
# if defined(NDEBUG) && (defined(__GNUC__) || defined(__clang__))
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# define __flatten __attribute__((flatten))
# else
# define __flatten
# endif
#endif /* __flatten */
#ifndef __aligned
# if defined(__GNUC__) || defined(__clang__)
# define __aligned(N) __attribute__((aligned(N)))
# elif defined(__MSC_VER)
# define __aligned(N) __declspec(align(N))
# else
# define __aligned(N)
# endif
#endif /* __align */
#ifndef __noreturn
# if defined(__GNUC__) || defined(__clang__)
# define __noreturn __attribute__((noreturn))
# elif defined(__MSC_VER)
# define __noreturn __declspec(noreturn)
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# else
# define __noreturn
# endif
#endif
#ifndef __nothrow
# if defined(__GNUC__) || defined(__clang__)
# define __nothrow __attribute__((nothrow))
# elif defined(__MSC_VER)
# define __nothrow __declspec(nothrow)
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# else
# define __nothrow
# endif
#endif
#ifndef CACHELINE_SIZE
# if defined(__ia64__) || defined(__ia64) || defined(_M_IA64)
# define CACHELINE_SIZE 128
# else
# define CACHELINE_SIZE 64
# endif
#endif
#ifndef __cache_aligned
# define __cache_aligned __aligned(CACHELINE_SIZE)
#endif
#ifndef likely
# if defined(__GNUC__) || defined(__clang__)
# ifdef __cplusplus
/* LY: workaround for "pretty" boost */
static __inline __attribute__((always_inline))
bool likely(bool cond) { return __builtin_expect(cond, 1); }
# else
# define likely(cond) __builtin_expect(!!(cond), 1)
# endif
# else
# define likely(x) (x)
# endif
#endif /* likely */
#ifndef unlikely
# if defined(__GNUC__) || defined(__clang__)
# ifdef __cplusplus
/* LY: workaround for "pretty" boost */
static __inline __attribute__((always_inline))
bool unlikely(bool cond) { return __builtin_expect(cond, 0); }
# else
# define unlikely(cond) __builtin_expect(!!(cond), 0)
# endif
# else
# define unlikely(x) (x)
# endif
#endif /* unlikely */
#ifndef __extern_C
# ifdef __cplusplus
# define __extern_C extern "C"
# else
# define __extern_C
# endif
#endif
#ifndef __noop
# define __noop() do {} while (0)
#endif
/* -------------------------------------------------------------------------- */
#include <assert.h>
/* Prototype should match libc runtime. ISO POSIX (2003) & LSB 3.1 */
__extern_C void __assert_fail(
const char* assertion,
const char* file,
unsigned line,
const char* function) __nothrow __noreturn;
/* -------------------------------------------------------------------------- */
#if defined(HAVE_VALGRIND) || defined(USE_VALGRIND)
/* Get debugging help from 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)
#endif /* ! USE_VALGRIND */
#if defined(__has_feature)
# if __has_feature(thread_sanitizer)
# define __SANITIZE_THREAD__ 1
# endif
#endif
#ifdef __SANITIZE_THREAD__
# define ATTRIBUTE_NO_SANITIZE_THREAD __attribute__((no_sanitize_thread, noinline))
#else
# define ATTRIBUTE_NO_SANITIZE_THREAD
#endif
#if defined(__has_feature)
# if __has_feature(address_sanitizer)
# define __SANITIZE_ADDRESS__ 1
# endif
#endif
#ifdef __SANITIZE_ADDRESS__
# include <sanitizer/asan_interface.h>
# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address, noinline))
#else
# define ASAN_POISON_MEMORY_REGION(addr, size) \
((void)(addr), (void)(size))
# define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
((void)(addr), (void)(size))
# define ATTRIBUTE_NO_SANITIZE_ADDRESS
#endif /* __SANITIZE_ADDRESS__ */
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#endif /* _REOPEN_H */