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-rw-r--r--3rdparty/asio/include/asio/detail/gcc_sync_fenced_block.hpp65
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diff --git a/3rdparty/asio/include/asio/detail/gcc_sync_fenced_block.hpp b/3rdparty/asio/include/asio/detail/gcc_sync_fenced_block.hpp
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+++ b/3rdparty/asio/include/asio/detail/gcc_sync_fenced_block.hpp
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+//
+// detail/gcc_sync_fenced_block.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// 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)
+//
+
+#ifndef ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
+#define ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(__GNUC__) \
+ && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
+ && !defined(__INTEL_COMPILER) && !defined(__ICL) \
+ && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
+
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class gcc_sync_fenced_block
+ : private noncopyable
+{
+public:
+ enum half_or_full_t { half, full };
+
+ // Constructor.
+ explicit gcc_sync_fenced_block(half_or_full_t)
+ : value_(0)
+ {
+ __sync_lock_test_and_set(&value_, 1);
+ }
+
+ // Destructor.
+ ~gcc_sync_fenced_block()
+ {
+ __sync_lock_release(&value_);
+ }
+
+private:
+ int value_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(__GNUC__)
+ // && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4))
+ // && !defined(__INTEL_COMPILER) && !defined(__ICL)
+ // && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
+
+#endif // ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP