2017-01-28 18:37:53 +00:00
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/*
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* This source file is part of the Swift.org open source project
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*
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* Copyright (c) 2015 Apple Inc. and the Swift project authors
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*
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* Licensed under Apache License v2.0 with Runtime Library Exception
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*
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2020-06-04 15:50:31 +00:00
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* See https://swift.org/LICENSE.txt for license information
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* See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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2017-01-28 18:37:53 +00:00
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*
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*/
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2020-06-04 15:50:31 +00:00
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#ifndef __OS_GENERIC_UNIX_BASE__
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#define __OS_GENERIC_UNIX_BASE__
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2017-01-28 18:37:53 +00:00
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2020-06-04 15:50:31 +00:00
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#if __has_include(<sys/sysmacros.h>)
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#include <sys/sysmacros.h>
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#endif
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#if defined(__FreeBSD__)
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#include <libutil.h>
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#include <fcntl.h>
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#endif
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2017-01-28 18:37:53 +00:00
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#include <sys/param.h>
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2020-06-04 15:50:31 +00:00
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#if __has_include(<sys/cdefs.h>)
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#include <sys/cdefs.h>
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#endif
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#ifndef API_AVAILABLE
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#define API_AVAILABLE(...)
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#endif
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#ifndef API_DEPRECATED
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#define API_DEPRECATED(...)
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#endif
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#ifndef API_UNAVAILABLE
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#define API_UNAVAILABLE(...)
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#endif
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#ifndef API_DEPRECATED_WITH_REPLACEMENT
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#define API_DEPRECATED_WITH_REPLACEMENT(...)
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#endif
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2017-01-28 18:37:53 +00:00
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#if __GNUC__
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#define OS_EXPECT(x, v) __builtin_expect((x), (v))
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2020-06-04 15:50:31 +00:00
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#define OS_UNUSED __attribute__((__unused__))
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2017-01-28 18:37:53 +00:00
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#else
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#define OS_EXPECT(x, v) (x)
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2020-06-04 15:50:31 +00:00
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#define OS_UNUSED
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2017-01-28 18:37:53 +00:00
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#endif
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#ifndef os_likely
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#define os_likely(x) OS_EXPECT(!!(x), 1)
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#endif
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#ifndef os_unlikely
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#define os_unlikely(x) OS_EXPECT(!!(x), 0)
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#endif
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#if __has_feature(assume_nonnull)
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#define OS_ASSUME_NONNULL_BEGIN _Pragma("clang assume_nonnull begin")
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#define OS_ASSUME_NONNULL_END _Pragma("clang assume_nonnull end")
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#else
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#define OS_ASSUME_NONNULL_BEGIN
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#define OS_ASSUME_NONNULL_END
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#endif
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#if __has_builtin(__builtin_assume)
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#define OS_COMPILER_CAN_ASSUME(expr) __builtin_assume(expr)
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#else
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#define OS_COMPILER_CAN_ASSUME(expr) ((void)(expr))
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#endif
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#if __has_feature(attribute_availability_swift)
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// equivalent to __SWIFT_UNAVAILABLE from Availability.h
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#define OS_SWIFT_UNAVAILABLE(_msg) \
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__attribute__((__availability__(swift, unavailable, message=_msg)))
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#else
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#define OS_SWIFT_UNAVAILABLE(_msg)
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#endif
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#if __has_attribute(swift_private)
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# define OS_REFINED_FOR_SWIFT __attribute__((__swift_private__))
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#else
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# define OS_REFINED_FOR_SWIFT
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#endif
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#if __has_attribute(swift_name)
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# define OS_SWIFT_NAME(_name) __attribute__((__swift_name__(#_name)))
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#else
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# define OS_SWIFT_NAME(_name)
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#endif
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#define __OS_STRINGIFY(s) #s
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#define OS_STRINGIFY(s) __OS_STRINGIFY(s)
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#define __OS_CONCAT(x, y) x ## y
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#define OS_CONCAT(x, y) __OS_CONCAT(x, y)
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2020-06-04 15:50:31 +00:00
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#if __has_feature(objc_fixed_enum) || __has_extension(cxx_strong_enums)
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#define OS_ENUM(_name, _type, ...) \
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typedef enum : _type { __VA_ARGS__ } _name##_t
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#else
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#define OS_ENUM(_name, _type, ...) \
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enum { __VA_ARGS__ }; typedef _type _name##_t
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#endif
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2017-01-28 18:37:53 +00:00
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/*
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* Stub out misc linking and compilation attributes
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*/
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#ifdef OS_EXPORT
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#undef OS_EXPORT
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#endif
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#define OS_EXPORT
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#ifdef OS_WARN_RESULT_NEEDS_RELEASE
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#undef OS_WARN_RESULT_NEEDS_RELEASE
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#endif
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#ifdef OS_WARN_RESULT
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#undef OS_WARN_RESULT
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#endif
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#define OS_WARN_RESULT
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#ifdef OS_NOTHROW
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#undef OS_NOTHROW
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#endif
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#define OS_NOTHROW
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2020-06-04 15:50:31 +00:00
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#endif /* __OS_GENERIC_UNIX_BASE__ */
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