60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
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// Copyright Oliver Kowalke 2013.
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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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#ifndef BOOST_FIBERS_DETAIL_CONVERT_H
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#define BOOST_FIBERS_DETAIL_CONVERT_H
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#include <chrono>
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#include <memory>
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#include <boost/config.hpp>
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#include <boost/fiber/detail/config.hpp>
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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namespace boost {
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namespace fibers {
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namespace detail {
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inline
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std::chrono::steady_clock::time_point convert(
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std::chrono::steady_clock::time_point const& timeout_time) noexcept {
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return timeout_time;
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}
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template< typename Clock, typename Duration >
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std::chrono::steady_clock::time_point convert(
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std::chrono::time_point< Clock, Duration > const& timeout_time) {
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return std::chrono::steady_clock::now() + ( timeout_time - Clock::now() );
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}
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// suggested by Howard Hinnant
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template< typename T >
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inline
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T * convert( T * p) noexcept {
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return p;
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}
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template< typename Pointer >
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inline
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typename std::pointer_traits< Pointer >::element_type *
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convert( Pointer p) noexcept {
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return nullptr != p
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? to_raw_pointer( p.operator->() )
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: nullptr;
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}
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}}}
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_SUFFIX
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#endif
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#endif // BOOST_FIBERS_DETAIL_CONVERT_H
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