70 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			70 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C++
		
	
	
	
| //
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| // detail/null_signal_blocker.hpp
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| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| //
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| // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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| //
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| // Distributed under the Boost Software License, Version 1.0. (See accompanying
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| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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| //
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| 
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| #ifndef ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
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| #define ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
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| 
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| #if defined(_MSC_VER) && (_MSC_VER >= 1200)
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| # pragma once
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| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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| 
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| #include "asio/detail/config.hpp"
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| 
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| #if !defined(ASIO_HAS_THREADS) \
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|   || defined(ASIO_WINDOWS) \
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|   || defined(ASIO_WINDOWS_RUNTIME) \
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|   || defined(__CYGWIN__) \
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|   || defined(__SYMBIAN32__)
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| 
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| #include "asio/detail/noncopyable.hpp"
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| 
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| #include "asio/detail/push_options.hpp"
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| 
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| namespace asio {
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| namespace detail {
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| 
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| class null_signal_blocker
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|   : private noncopyable
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| {
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| public:
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|   // Constructor blocks all signals for the calling thread.
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|   null_signal_blocker()
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|   {
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|   }
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| 
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|   // Destructor restores the previous signal mask.
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|   ~null_signal_blocker()
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|   {
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|   }
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| 
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|   // Block all signals for the calling thread.
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|   void block()
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|   {
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|   }
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| 
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|   // Restore the previous signal mask.
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|   void unblock()
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|   {
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|   }
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| };
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| 
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| } // namespace detail
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| } // namespace asio
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| 
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| #include "asio/detail/pop_options.hpp"
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| 
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| #endif // !defined(ASIO_HAS_THREADS)
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|        // || defined(ASIO_WINDOWS)
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|        // || defined(ASIO_WINDOWS_RUNTIME)
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|        // || defined(__CYGWIN__)
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|        // || defined(__SYMBIAN32__)
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| 
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| #endif // ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
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