atomic/detail/wait_caps_darwin_ulock.hpp

0001 /*
0002  * Distributed under the Boost Software License, Version 1.0.
0003  * (See accompanying file LICENSE_1_0.txt or copy at
0004  * http://www.boost.org/LICENSE_1_0.txt)
0005  *
0006  * Copyright (c) 2021 Andrey Semashev
0007  */
0008 /*!
0009  * \file   atomic/detail/wait_caps_darwin_ulock.hpp
0010  *
0011  * This header defines waiting/notifying operations capabilities macros.
0012  */
0013
0014 #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_DARWIN_ULOCK_HPP_INCLUDED_
0015 #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_DARWIN_ULOCK_HPP_INCLUDED_
0016
0017 #include <boost/atomic/detail/config.hpp>
0018 #include <boost/atomic/detail/capabilities.hpp>
0019
0020 #ifdef BOOST_HAS_PRAGMA_ONCE
0021 #pragma once
0022 #endif
0023
0024 #define BOOST_ATOMIC_HAS_NATIVE_INT32_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
0025
0026 // Darwin 19+ (Mac OS 10.15+, iOS 13.0+, tvOS 13.0+, watchOS 6.0+) adds support for 64-bit
0027 // and inter-process ulock operations.
0028 // https://shift.click/blog/futex-like-apis/#darwin-macos-ios-tvos-watchos-and-more
0029 // https://github.com/thomcc/ulock-sys/blob/2597e63cc5372459a903c292a3919d385a3e3789/src/lib.rs
0030 #if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101500) || \
0031     (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 130000) || \
0032     (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ >= 130000) || \
0033     (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ >= 60000)
0034 #define BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK64
0035 #define BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK_SHARED
0036 #endif
0037
0038 // Darwin 20+ (Mac OS 11.0+, iOS 14.0+, tvOS 14.0+, watchOS 7.0+) introduces __ulock_wait2, which accepts
0039 // the timeout in nanoseconds. __ulock_wait is a wrapper on top of __ulock_wait2.
0040 #if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 110000) || \
0041     (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 140000) || \
0042     (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ >= 140000) || \
0043     (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ >= 70000)
0044 #define BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK_WAIT2
0045 #endif
0046
0047 #if defined(BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK_SHARED)
0048 #define BOOST_ATOMIC_HAS_NATIVE_INT32_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
0049 #endif // defined(BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK_SHARED)
0050
0051 #if defined(BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK64)
0052 #define BOOST_ATOMIC_HAS_NATIVE_INT64_WAIT_NOTIFY BOOST_ATOMIC_INT64_LOCK_FREE
0053 #if defined(BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK_SHARED)
0054 #define BOOST_ATOMIC_HAS_NATIVE_INT64_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT64_LOCK_FREE
0055 #endif // defined(BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK_SHARED)
0056 #endif // defined(BOOST_ATOMIC_DETAIL_HAS_DARWIN_ULOCK64)
0057
0058 #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_DARWIN_ULOCK_HPP_INCLUDED_