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/usr/include/boost/atomic/detail

Name	Size	Mode	Actions
type_traits/	-	0755	rm
addressof.hpp	1973	0644	edit dl rm
aligned_variable.hpp	1853	0644	edit dl rm
atomic_flag_impl.hpp	4525	0644	edit dl rm
atomic_impl.hpp	56095	0644	edit dl rm
atomic_ref_impl.hpp	54073	0644	edit dl rm
bitwise_cast.hpp	2691	0644	edit dl rm
bitwise_fp_cast.hpp	2509	0644	edit dl rm
capabilities.hpp	7520	0644	edit dl rm
caps_arch_gcc_aarch32.hpp	1617	0644	edit dl rm
caps_arch_gcc_aarch64.hpp	2238	0644	edit dl rm
caps_arch_gcc_alpha.hpp	940	0644	edit dl rm
caps_arch_gcc_arm.hpp	3573	0644	edit dl rm
caps_arch_gcc_ppc.hpp	1581	0644	edit dl rm
caps_arch_gcc_sparc.hpp	940	0644	edit dl rm
caps_arch_gcc_x86.hpp	2013	0644	edit dl rm
caps_arch_msvc_arm.hpp	943	0644	edit dl rm
caps_arch_msvc_x86.hpp	1698	0644	edit dl rm
caps_gcc_atomic.hpp	7438	0644	edit dl rm
caps_gcc_sync.hpp	1715	0644	edit dl rm
caps_linux_arm.hpp	963	0644	edit dl rm
caps_windows.hpp	880	0644	edit dl rm
cas_based_exchange.hpp	1348	0644	edit dl rm
classify.hpp	2133	0644	edit dl rm
config.hpp	7945	0644	edit dl rm
core_arch_operations.hpp	1481	0644	edit dl rm
core_arch_operations_fwd.hpp	972	0644	edit dl rm
core_arch_ops_gcc_aarch32.hpp	41910	0644	edit dl rm
core_arch_ops_gcc_aarch64.hpp	69364	0644	edit dl rm
core_arch_ops_gcc_alpha.hpp	27813	0644	edit dl rm
core_arch_ops_gcc_arm.hpp	64434	0644	edit dl rm
core_arch_ops_gcc_ppc.hpp	39185	0644	edit dl rm
core_arch_ops_gcc_sparc.hpp	7480	0644	edit dl rm
core_arch_ops_gcc_x86.hpp	39479	0644	edit dl rm
core_arch_ops_msvc_arm.hpp	34246	0644	edit dl rm
core_arch_ops_msvc_x86.hpp	31645	0644	edit dl rm
core_operations.hpp	1322	0644	edit dl rm
core_operations_emulated.hpp	8138	0644	edit dl rm
core_operations_emulated_fwd.hpp	1024	0644	edit dl rm
core_operations_fwd.hpp	942	0644	edit dl rm
core_ops_cas_based.hpp	3281	0644	edit dl rm
core_ops_gcc_atomic.hpp	12238	0644	edit dl rm
core_ops_gcc_sync.hpp	10690	0644	edit dl rm
core_ops_linux_arm.hpp	6364	0644	edit dl rm
core_ops_windows.hpp	7766	0644	edit dl rm
extending_cas_based_arithmetic.hpp	2441	0644	edit dl rm
extra_fp_operations.hpp	867	0644	edit dl rm
extra_fp_operations_fwd.hpp	1065	0644	edit dl rm
extra_fp_ops_emulated.hpp	4864	0644	edit dl rm
extra_fp_ops_generic.hpp	7222	0644	edit dl rm
extra_operations.hpp	825	0644	edit dl rm
extra_operations_fwd.hpp	1034	0644	edit dl rm
extra_ops_emulated.hpp	11876	0644	edit dl rm
extra_ops_gcc_aarch32.hpp	37869	0644	edit dl rm
extra_ops_gcc_aarch64.hpp	47028	0644	edit dl rm
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extra_ops_gcc_ppc.hpp	28665	0644	edit dl rm
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extra_ops_generic.hpp	17217	0644	edit dl rm
extra_ops_msvc_arm.hpp	3765	0644	edit dl rm
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fence_arch_operations.hpp	1077	0644	edit dl rm
fence_arch_ops_gcc_aarch32.hpp	1701	0644	edit dl rm
fence_arch_ops_gcc_aarch64.hpp	1624	0644	edit dl rm
fence_arch_ops_gcc_alpha.hpp	1411	0644	edit dl rm
fence_arch_ops_gcc_arm.hpp	2769	0644	edit dl rm
fence_arch_ops_gcc_ppc.hpp	1773	0644	edit dl rm
fence_arch_ops_gcc_sparc.hpp	2002	0644	edit dl rm
fence_arch_ops_gcc_x86.hpp	2557	0644	edit dl rm
fence_arch_ops_msvc_arm.hpp	1787	0644	edit dl rm
fence_arch_ops_msvc_x86.hpp	1998	0644	edit dl rm
fence_operations.hpp	1007	0644	edit dl rm
fence_operations_emulated.hpp	1294	0644	edit dl rm
fence_ops_gcc_atomic.hpp	2399	0644	edit dl rm
fence_ops_gcc_sync.hpp	1367	0644	edit dl rm
fence_ops_linux_arm.hpp	1792	0644	edit dl rm
fence_ops_windows.hpp	1848	0644	edit dl rm
float_sizes.hpp	7570	0644	edit dl rm
footer.hpp	505	0644	edit dl rm
fp_operations.hpp	807	0644	edit dl rm
fp_operations_fwd.hpp	1001	0644	edit dl rm
fp_ops_emulated.hpp	2714	0644	edit dl rm
fp_ops_generic.hpp	2919	0644	edit dl rm
futex.hpp	5388	0644	edit dl rm
gcc_arm_asm_common.hpp	4031	0644	edit dl rm
gcc_atomic_memory_order_utils.hpp	2804	0644	edit dl rm
header.hpp	2624	0644	edit dl rm
integral_conversions.hpp	4306	0644	edit dl rm
interlocked.hpp	34503	0644	edit dl rm
intptr.hpp	992	0644	edit dl rm
int_sizes.hpp	4987	0644	edit dl rm
link.hpp	1534	0644	edit dl rm
lock_pool.hpp	4689	0644	edit dl rm
memory_order_utils.hpp	1576	0644	edit dl rm
once_flag.hpp	1136	0644	edit dl rm
ops_gcc_aarch32_common.hpp	1577	0644	edit dl rm
ops_gcc_aarch64_common.hpp	1467	0644	edit dl rm
ops_gcc_arm_common.hpp	1963	0644	edit dl rm
ops_gcc_ppc_common.hpp	2762	0644	edit dl rm
ops_msvc_common.hpp	1318	0644	edit dl rm
pause.hpp	1494	0644	edit dl rm
platform.hpp	7210	0644	edit dl rm
storage_traits.hpp	5448	0644	edit dl rm
string_ops.hpp	1719	0644	edit dl rm
wait_capabilities.hpp	16861	0644	edit dl rm
wait_caps_dragonfly_umtx.hpp	1055	0644	edit dl rm
wait_caps_freebsd_umtx.hpp	1539	0644	edit dl rm
wait_caps_futex.hpp	1027	0644	edit dl rm
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wait_operations.hpp	828	0644	edit dl rm
wait_operations_fwd.hpp	1071	0644	edit dl rm
wait_ops_dragonfly_umtx.hpp	2354	0644	edit dl rm
wait_ops_emulated.hpp	3296	0644	edit dl rm
wait_ops_freebsd_umtx.hpp	3974	0644	edit dl rm
wait_ops_futex.hpp	3416	0644	edit dl rm
wait_ops_generic.hpp	4263	0644	edit dl rm
wait_ops_windows.hpp	4848	0644	edit dl rm

Edit: /usr/include/boost/atomic/detail/atomic_flag_impl.hpp (4525B)

/*
 * 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) 2011 Helge Bahmann
 * Copyright (c) 2013 Tim Blechmann
 * Copyright (c) 2014, 2020 Andrey Semashev
 */
/*!
 * \file   atomic/detail/atomic_flag_impl.hpp
 *
 * This header contains implementation of \c atomic_flag.
 */

#ifndef BOOST_ATOMIC_DETAIL_ATOMIC_FLAG_IMPL_HPP_INCLUDED_
#define BOOST_ATOMIC_DETAIL_ATOMIC_FLAG_IMPL_HPP_INCLUDED_

#include <boost/assert.hpp>
#include <boost/memory_order.hpp>
#include <boost/atomic/detail/config.hpp>
#include <boost/atomic/detail/core_operations.hpp>
#include <boost/atomic/detail/wait_operations.hpp>
#include <boost/atomic/detail/aligned_variable.hpp>
#include <boost/atomic/detail/header.hpp>

#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif

/*
 * IMPLEMENTATION NOTE: All interface functions MUST be declared with BOOST_FORCEINLINE,
 *                      see comment for convert_memory_order_to_gcc in gcc_atomic_memory_order_utils.hpp.
 */

namespace boost {
namespace atomics {
namespace detail {

#if defined(BOOST_ATOMIC_DETAIL_NO_CXX11_CONSTEXPR_UNION_INIT) || defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX)
#define BOOST_ATOMIC_NO_ATOMIC_FLAG_INIT
#else
#define BOOST_ATOMIC_FLAG_INIT {}
#endif

//! Atomic flag implementation
template< bool IsInterprocess >
struct atomic_flag_impl
{
    // Prefer 4-byte storage as most platforms support waiting/notifying operations without a lock pool for 32-bit integers
    typedef atomics::detail::core_operations< 4u, false, IsInterprocess > core_operations;
    typedef atomics::detail::wait_operations< core_operations > wait_operations;
    typedef typename core_operations::storage_type storage_type;

static BOOST_CONSTEXPR_OR_CONST bool is_always_lock_free = core_operations::is_always_lock_free;
    static BOOST_CONSTEXPR_OR_CONST bool always_has_native_wait_notify = wait_operations::always_has_native_wait_notify;

BOOST_ATOMIC_DETAIL_ALIGNED_VAR_TPL(core_operations::storage_alignment, storage_type, m_storage);

BOOST_FORCEINLINE BOOST_ATOMIC_DETAIL_CONSTEXPR_UNION_INIT atomic_flag_impl() BOOST_NOEXCEPT : m_storage(0u)
    {
    }

BOOST_FORCEINLINE bool is_lock_free() const volatile BOOST_NOEXCEPT
    {
        return is_always_lock_free;
    }

BOOST_FORCEINLINE bool has_native_wait_notify() const volatile BOOST_NOEXCEPT
    {
        return wait_operations::has_native_wait_notify(m_storage);
    }

BOOST_FORCEINLINE bool test(memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT
    {
        BOOST_ASSERT(order != memory_order_release);
        BOOST_ASSERT(order != memory_order_acq_rel);
        return !!core_operations::load(m_storage, order);
    }

BOOST_FORCEINLINE bool test_and_set(memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT
    {
        return core_operations::test_and_set(m_storage, order);
    }

BOOST_FORCEINLINE void clear(memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT
    {
        BOOST_ASSERT(order != memory_order_consume);
        BOOST_ASSERT(order != memory_order_acquire);
        BOOST_ASSERT(order != memory_order_acq_rel);
        core_operations::clear(m_storage, order);
    }

BOOST_FORCEINLINE bool wait(bool old_val, memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT
    {
        BOOST_ASSERT(order != memory_order_release);
        BOOST_ASSERT(order != memory_order_acq_rel);

return !!wait_operations::wait(m_storage, static_cast< storage_type >(old_val), order);
    }

BOOST_FORCEINLINE void notify_one() volatile BOOST_NOEXCEPT
    {
        wait_operations::notify_one(m_storage);
    }

BOOST_FORCEINLINE void notify_all() volatile BOOST_NOEXCEPT
    {
        wait_operations::notify_all(m_storage);
    }

BOOST_DELETED_FUNCTION(atomic_flag_impl(atomic_flag_impl const&))
    BOOST_DELETED_FUNCTION(atomic_flag_impl& operator= (atomic_flag_impl const&))
};

#if defined(BOOST_NO_CXX17_INLINE_VARIABLES)
template< bool IsInterprocess >
BOOST_CONSTEXPR_OR_CONST bool atomic_flag_impl< IsInterprocess >::is_always_lock_free;
template< bool IsInterprocess >
BOOST_CONSTEXPR_OR_CONST bool atomic_flag_impl< IsInterprocess >::always_has_native_wait_notify;
#endif

} // namespace detail
} // namespace atomics
} // namespace boost

#include <boost/atomic/detail/footer.hpp>

#endif // BOOST_ATOMIC_DETAIL_ATOMIC_FLAG_IMPL_HPP_INCLUDED_

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