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author | Tobias Markmann <tm@ayena.de> | 2014-10-19 20:22:58 (GMT) |
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committer | Tobias Markmann <tm@ayena.de> | 2014-10-20 13:49:33 (GMT) |
commit | 6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch) | |
tree | 2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/atomic/detail/ops_windows.hpp | |
parent | 38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff) | |
download | swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.zip swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.tar.bz2 |
Update Boost in 3rdParty to version 1.56.0.
This updates Boost in our 3rdParty directory to version 1.56.0.
Updated our update.sh script to stop on error.
Changed error reporting in SwiftTools/CrashReporter.cpp to SWIFT_LOG due to
missing include of <iostream> with newer Boost.
Change-Id: I4b35c77de951333979a524097f35f5f83d325edc
Diffstat (limited to '3rdParty/Boost/src/boost/atomic/detail/ops_windows.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/atomic/detail/ops_windows.hpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/atomic/detail/ops_windows.hpp b/3rdParty/Boost/src/boost/atomic/detail/ops_windows.hpp new file mode 100644 index 0000000..1b4b04c --- /dev/null +++ b/3rdParty/Boost/src/boost/atomic/detail/ops_windows.hpp @@ -0,0 +1,215 @@ +/* + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + * + * Copyright (c) 2009 Helge Bahmann + * Copyright (c) 2012 Tim Blechmann + * Copyright (c) 2014 Andrey Semashev + */ +/*! + * \file atomic/detail/ops_windows.hpp + * + * This header contains implementation of the \c operations template. + * + * This implementation is the most basic version for Windows. It should + * work for any non-MSVC-like compilers as long as there are Interlocked WinAPI + * functions available. This version is also used for WinCE. + * + * Notably, this implementation is not as efficient as other + * versions based on compiler intrinsics. + */ + +#ifndef BOOST_ATOMIC_DETAIL_OPS_WINDOWS_HPP_INCLUDED_ +#define BOOST_ATOMIC_DETAIL_OPS_WINDOWS_HPP_INCLUDED_ + +#include <boost/memory_order.hpp> +#include <boost/type_traits/make_signed.hpp> +#include <boost/atomic/detail/config.hpp> +#include <boost/atomic/detail/interlocked.hpp> +#include <boost/atomic/detail/storage_type.hpp> +#include <boost/atomic/detail/operations_fwd.hpp> +#include <boost/atomic/capabilities.hpp> +#include <boost/atomic/detail/ops_msvc_common.hpp> +#include <boost/atomic/detail/ops_extending_cas_based.hpp> + +#ifdef BOOST_HAS_PRAGMA_ONCE +#pragma once +#endif + +namespace boost { +namespace atomics { +namespace detail { + +struct windows_operations_base +{ + static BOOST_FORCEINLINE void hardware_full_fence() BOOST_NOEXCEPT + { + long tmp; + BOOST_ATOMIC_INTERLOCKED_EXCHANGE(&tmp, 0); + } + + static BOOST_FORCEINLINE void fence_before(memory_order) BOOST_NOEXCEPT + { + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + } + + static BOOST_FORCEINLINE void fence_after(memory_order) BOOST_NOEXCEPT + { + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + } +}; + +template< typename T, typename Derived > +struct windows_operations : + public windows_operations_base +{ + typedef T storage_type; + + static BOOST_FORCEINLINE void store(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + Derived::exchange(storage, v, order); + } + + static BOOST_FORCEINLINE storage_type load(storage_type const volatile& storage, memory_order order) BOOST_NOEXCEPT + { + return Derived::fetch_add(const_cast< storage_type volatile& >(storage), (storage_type)0, order); + } + + static BOOST_FORCEINLINE storage_type fetch_sub(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + typedef typename make_signed< storage_type >::type signed_storage_type; + return Derived::fetch_add(storage, static_cast< storage_type >(-static_cast< signed_storage_type >(v)), order); + } + + static BOOST_FORCEINLINE bool compare_exchange_weak( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + return Derived::compare_exchange_strong(storage, expected, desired, success_order, failure_order); + } + + static BOOST_FORCEINLINE bool test_and_set(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + return !!Derived::exchange(storage, (storage_type)1, order); + } + + static BOOST_FORCEINLINE void clear(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + store(storage, (storage_type)0, order); + } + + static BOOST_FORCEINLINE bool is_lock_free(storage_type const volatile&) BOOST_NOEXCEPT + { + return true; + } +}; + +template< bool Signed > +struct operations< 4u, Signed > : + public windows_operations< typename make_storage_type< 4u, Signed >::type, operations< 4u, Signed > > +{ + typedef windows_operations< typename make_storage_type< 4u, Signed >::type, operations< 4u, Signed > > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE storage_type fetch_add(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + base_type::fence_before(order); + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD(&storage, v)); + base_type::fence_after(order); + return v; + } + + static BOOST_FORCEINLINE storage_type exchange(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + base_type::fence_before(order); + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE(&storage, v)); + base_type::fence_after(order); + return v; + } + + static BOOST_FORCEINLINE bool compare_exchange_strong( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + storage_type previous = expected; + base_type::fence_before(success_order); + storage_type old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE(&storage, desired, previous)); + expected = old_val; + // The success and failure fences are the same anyway + base_type::fence_after(success_order); + return (previous == old_val); + } + + static BOOST_FORCEINLINE storage_type fetch_and(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { +#if defined(BOOST_ATOMIC_INTERLOCKED_AND) + base_type::fence_before(order); + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND(&storage, v)); + base_type::fence_after(order); + return v; +#else + storage_type res = storage; + while (!compare_exchange_strong(storage, res, res & v, order, memory_order_relaxed)) {} + return res; +#endif + } + + static BOOST_FORCEINLINE storage_type fetch_or(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { +#if defined(BOOST_ATOMIC_INTERLOCKED_OR) + base_type::fence_before(order); + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR(&storage, v)); + base_type::fence_after(order); + return v; +#else + storage_type res = storage; + while (!compare_exchange_strong(storage, res, res | v, order, memory_order_relaxed)) {} + return res; +#endif + } + + static BOOST_FORCEINLINE storage_type fetch_xor(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { +#if defined(BOOST_ATOMIC_INTERLOCKED_XOR) + base_type::fence_before(order); + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR(&storage, v)); + base_type::fence_after(order); + return v; +#else + storage_type res = storage; + while (!compare_exchange_strong(storage, res, res ^ v, order, memory_order_relaxed)) {} + return res; +#endif + } +}; + +template< bool Signed > +struct operations< 1u, Signed > : + public extending_cas_based_operations< operations< 4u, Signed >, 1u, Signed > +{ +}; + +template< bool Signed > +struct operations< 2u, Signed > : + public extending_cas_based_operations< operations< 4u, Signed >, 2u, Signed > +{ +}; + +BOOST_FORCEINLINE void thread_fence(memory_order order) BOOST_NOEXCEPT +{ + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + if (order == memory_order_seq_cst) + windows_operations_base::hardware_full_fence(); + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); +} + +BOOST_FORCEINLINE void signal_fence(memory_order order) BOOST_NOEXCEPT +{ + if (order != memory_order_relaxed) + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); +} + +} // namespace detail +} // namespace atomics +} // namespace boost + +#endif // BOOST_ATOMIC_DETAIL_OPS_WINDOWS_HPP_INCLUDED_ |