projects / apple / libdispatch.git / blame
| Commit | Line | Data |
|---|---|---|
| beb15981 A |
1 | /* |
| 2 | * This source file is part of the Swift.org open source project | |
| 3 | * | |
| 4 | * Copyright (c) 2015 Apple Inc. and the Swift project authors | |
| 5 | * | |
| 6 | * Licensed under Apache License v2.0 with Runtime Library Exception | |
| 7 | * | |
| 8 | * See http://swift.org/LICENSE.txt for license information | |
| 9 | * See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | |
| 10 | * | |
| 11 | */ | |
| 12 | ||
| 13 | #ifndef __OS_LINUX_BASE__ | |
| 14 | #define __OS_LINUX_BASE__ | |
| 15 | ||
| 16 | #include <sys/user.h> | |
| 17 | #include <sys/param.h> | |
| 18 | ||
| 19 | #if __GNUC__ | |
| 20 | #define OS_EXPECT(x, v) __builtin_expect((x), (v)) | |
| 21 | #else | |
| 22 | #define OS_EXPECT(x, v) (x) | |
| 23 | #endif | |
| 24 | ||
| 25 | #ifndef os_likely | |
| 26 | #define os_likely(x) OS_EXPECT(!!(x), 1) | |
| 27 | #endif | |
| 28 | #ifndef os_unlikely | |
| 29 | #define os_unlikely(x) OS_EXPECT(!!(x), 0) | |
| 30 | #endif | |
| 31 | ||
| 32 | #if __has_feature(assume_nonnull) | |
| 33 | #define OS_ASSUME_NONNULL_BEGIN _Pragma("clang assume_nonnull begin") | |
| 34 | #define OS_ASSUME_NONNULL_END _Pragma("clang assume_nonnull end") | |
| 35 | #else | |
| 36 | #define OS_ASSUME_NONNULL_BEGIN | |
| 37 | #define OS_ASSUME_NONNULL_END | |
| 38 | #endif | |
| 39 | ||
| 40 | #if __has_builtin(__builtin_assume) | |
| 41 | #define OS_COMPILER_CAN_ASSUME(expr) __builtin_assume(expr) | |
| 42 | #else | |
| 43 | #define OS_COMPILER_CAN_ASSUME(expr) ((void)(expr)) | |
| 44 | #endif | |
| 45 | ||
| 46 | #if __has_feature(attribute_availability_swift) | |
| 47 | // equivalent to __SWIFT_UNAVAILABLE from Availability.h | |
| 48 | #define OS_SWIFT_UNAVAILABLE(_msg) \ | |
| 49 | __attribute__((__availability__(swift, unavailable, message=_msg))) | |
| 50 | #else | |
| 51 | #define OS_SWIFT_UNAVAILABLE(_msg) | |
| 52 | #endif | |
| 53 | ||
| 54 | #if __has_attribute(swift_private) | |
| 55 | # define OS_REFINED_FOR_SWIFT __attribute__((__swift_private__)) | |
| 56 | #else | |
| 57 | # define OS_REFINED_FOR_SWIFT | |
| 58 | #endif | |
| 59 | ||
| 60 | #if __has_attribute(swift_name) | |
| 61 | # define OS_SWIFT_NAME(_name) __attribute__((__swift_name__(#_name))) | |
| 62 | #else | |
| 63 | # define OS_SWIFT_NAME(_name) | |
| 64 | #endif | |
| 65 | ||
| 66 | #define __OS_STRINGIFY(s) #s | |
| 67 | #define OS_STRINGIFY(s) __OS_STRINGIFY(s) | |
| 68 | #define __OS_CONCAT(x, y) x ## y | |
| 69 | #define OS_CONCAT(x, y) __OS_CONCAT(x, y) | |
| 70 | ||
| 71 | /* | |
| 72 | * Stub out misc linking and compilation attributes | |
| 73 | */ | |
| 74 | ||
| 75 | #ifdef OS_EXPORT | |
| 76 | #undef OS_EXPORT | |
| 77 | #endif | |
| 78 | #define OS_EXPORT | |
| 79 | ||
| 80 | #ifdef OS_WARN_RESULT_NEEDS_RELEASE | |
| 81 | #undef OS_WARN_RESULT_NEEDS_RELEASE | |
| 82 | #endif | |
| 83 | ||
| 84 | #ifdef OS_WARN_RESULT | |
| 85 | #undef OS_WARN_RESULT | |
| 86 | #endif | |
| 87 | #define OS_WARN_RESULT | |
| 88 | ||
| 89 | #ifdef OS_NOTHROW | |
| 90 | #undef OS_NOTHROW | |
| 91 | #endif | |
| 92 | #define OS_NOTHROW | |
| 93 | ||
| 94 | #endif /* __OS_LINUX_BASE__ */ |