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The inter-process atomics have ipc_ prefixes: ipc_atomic, ipc_atomic_ref and ipc_atomic_flag. These types are similar to their unprefixed counterparts with the following distinctions: - The operations are provided with an added precondition that is_lock_free() returns true. - All operations, including waiting/notifying operations, are address-free, so the types are suitable for inter-process communication. - The new has_native_wait_notify() operation and always_has_native_wait_notify static constant allow to test if the target platform has native support for address-free waiting/notifying operations. If it does not, a generic implementation is used based on a busy wait. - The new set of capability macros added. The macros are named BOOST_ATOMIC_HAS_NATIVE_<T>_IPC_WAIT_NOTIFY and indicate whether address-free waiting/notifying operations are supported natively for a given type. Additionally, to unify interface and implementation of different components, the has_native_wait_notify() operation and always_has_native_wait_notify static constant were added to non-IPC atomic types as well. Added BOOST_ATOMIC_HAS_NATIVE_<T>_WAIT_NOTIFY capability macros to indicate native support for inter-thread waiting/notifying operations. Also, added is_lock_free() and is_always_lock_free to atomic_flag. This commit adds implementation, docs and tests.
84 lines
3.3 KiB
C++
84 lines
3.3 KiB
C++
// Copyright (c) 2011 Helge Bahmann
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// Copyright (c) 2020 Andrey Semashev
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/atomic.hpp>
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#include <boost/config.hpp>
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#include <boost/cstdint.hpp>
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#include "api_test_helpers.hpp"
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int main(int, char *[])
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{
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test_flag_api< boost::atomic_flag >();
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test_integral_api< atomic_wrapper, char >();
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test_integral_api< atomic_wrapper, signed char >();
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test_integral_api< atomic_wrapper, unsigned char >();
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test_integral_api< atomic_wrapper, boost::uint8_t >();
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test_integral_api< atomic_wrapper, boost::int8_t >();
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test_integral_api< atomic_wrapper, short >();
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test_integral_api< atomic_wrapper, unsigned short >();
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test_integral_api< atomic_wrapper, boost::uint16_t >();
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test_integral_api< atomic_wrapper, boost::int16_t >();
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test_integral_api< atomic_wrapper, int >();
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test_integral_api< atomic_wrapper, unsigned int >();
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test_integral_api< atomic_wrapper, boost::uint32_t >();
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test_integral_api< atomic_wrapper, boost::int32_t >();
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test_integral_api< atomic_wrapper, long >();
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test_integral_api< atomic_wrapper, unsigned long >();
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test_integral_api< atomic_wrapper, boost::uint64_t >();
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test_integral_api< atomic_wrapper, boost::int64_t >();
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test_integral_api< atomic_wrapper, long long >();
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test_integral_api< atomic_wrapper, unsigned long long >();
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#if defined(BOOST_HAS_INT128) && !defined(BOOST_ATOMIC_TESTS_NO_INT128)
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test_integral_api< atomic_wrapper, boost::int128_type >();
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test_integral_api< atomic_wrapper, boost::uint128_type >();
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#endif
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test_constexpr_ctor< char >();
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test_constexpr_ctor< short >();
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test_constexpr_ctor< int >();
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test_constexpr_ctor< long >();
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// test_constexpr_ctor< int* >(); // for pointers we're not offering a constexpr constructor because of bitwise_cast
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#if !defined(BOOST_ATOMIC_NO_FLOATING_POINT)
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test_floating_point_api< atomic_wrapper, float >();
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test_floating_point_api< atomic_wrapper, double >();
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test_floating_point_api< atomic_wrapper, long double >();
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#if defined(BOOST_HAS_FLOAT128) && !defined(BOOST_ATOMIC_TESTS_NO_FLOAT128)
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test_floating_point_api< atomic_wrapper, boost::float128_type >();
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#endif
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#endif
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test_pointer_api< atomic_wrapper, int >();
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test_enum_api< atomic_wrapper >();
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test_struct_api< atomic_wrapper, test_struct< boost::uint8_t > >();
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test_struct_api< atomic_wrapper, test_struct< boost::uint16_t > >();
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test_struct_api< atomic_wrapper, test_struct< boost::uint32_t > >();
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test_struct_api< atomic_wrapper, test_struct< boost::uint64_t > >();
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#if defined(BOOST_HAS_INT128)
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test_struct_api< atomic_wrapper, test_struct< boost::uint128_type > >();
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#endif
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// https://svn.boost.org/trac/boost/ticket/10994
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test_struct_x2_api< atomic_wrapper, test_struct_x2< boost::uint64_t > >();
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// https://svn.boost.org/trac/boost/ticket/9985
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test_struct_api< atomic_wrapper, test_struct< double > >();
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test_large_struct_api< atomic_wrapper >();
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// Test that boost::atomic<T> only requires T to be trivially copyable.
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// Other non-trivial constructors are allowed.
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test_struct_with_ctor_api< atomic_wrapper >();
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return boost::report_errors();
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}
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