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d8dea963fa
6d5547a Set version to 1.0.0-b34 6fab138 Fix and tidy up CMake build scripts: ccefa54 Set version to 1.0.0-b33 32afe41 Set internal state correctly when writing frames: fe3e20b Add write_frames unit test 578dcd0 Add decorator unit test aaa3733 Use fwrite return value in file_body df66165 Require Visual Studio 2015 Update 3 or later b8e5a21 Set version to 1.0.0-b32 ffb1758 Update CMake scripts for finding packages: b893749 Remove http Writer suspend and resume feature (API Change): 27864fb Add io_service completion invariants tests eba05a7 Set version to 1.0.0-b31 484bcef Fix badge markdown in README.md 5663bea Add missing dynabuf_readstream member 0d7a551 Tidy up build settings 0fd4030 Move the handler, don't copy it git-subtree-dir: src/beast git-subtree-split: 6d5547a32c50ec95832c4779311502555ab0ee1f
130 lines
2.7 KiB
C++
130 lines
2.7 KiB
C++
//
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// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail 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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#ifndef BEAST_IMPL_HANDLER_PTR_HPP
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#define BEAST_IMPL_HANDLER_PTR_HPP
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#include <beast/core/handler_helpers.hpp>
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#include <boost/asio/detail/handler_alloc_helpers.hpp>
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#include <boost/assert.hpp>
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#include <memory>
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namespace beast {
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template<class T, class Handler>
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template<class DeducedHandler, class... Args>
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inline
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handler_ptr<T, Handler>::P::
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P(DeducedHandler&& h, Args&&... args)
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: n(1)
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, handler(std::forward<DeducedHandler>(h))
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{
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t = reinterpret_cast<T*>(
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beast_asio_helpers::
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allocate(sizeof(T), handler));
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try
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{
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t = new(t) T{handler,
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std::forward<Args>(args)...};
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}
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catch(...)
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{
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beast_asio_helpers::
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deallocate(t, sizeof(T), handler);
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throw;
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}
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}
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template<class T, class Handler>
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handler_ptr<T, Handler>::
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~handler_ptr()
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{
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if(! p_)
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return;
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if(--p_->n)
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return;
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if(p_->t)
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{
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p_->t->~T();
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beast_asio_helpers::
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deallocate(p_->t, sizeof(T), p_->handler);
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}
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delete p_;
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}
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template<class T, class Handler>
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handler_ptr<T, Handler>::
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handler_ptr(handler_ptr&& other)
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: p_(other.p_)
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{
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other.p_ = nullptr;
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}
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template<class T, class Handler>
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handler_ptr<T, Handler>::
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handler_ptr(handler_ptr const& other)
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: p_(other.p_)
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{
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if(p_)
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++p_->n;
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}
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template<class T, class Handler>
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template<class... Args>
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handler_ptr<T, Handler>::
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handler_ptr(Handler&& handler, Args&&... args)
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: p_(new P{std::move(handler),
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std::forward<Args>(args)...})
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{
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static_assert(! std::is_array<T>::value,
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"T must not be an array type");
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}
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template<class T, class Handler>
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template<class... Args>
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handler_ptr<T, Handler>::
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handler_ptr(Handler const& handler, Args&&... args)
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: p_(new P{handler, std::forward<Args>(args)...})
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{
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static_assert(! std::is_array<T>::value,
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"T must not be an array type");
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}
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template<class T, class Handler>
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auto
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handler_ptr<T, Handler>::
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release_handler() ->
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handler_type
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{
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BOOST_ASSERT(p_);
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BOOST_ASSERT(p_->t);
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p_->t->~T();
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beast_asio_helpers::
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deallocate(p_->t, sizeof(T), p_->handler);
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p_->t = nullptr;
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return std::move(p_->handler);
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}
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template<class T, class Handler>
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template<class... Args>
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void
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handler_ptr<T, Handler>::
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invoke(Args&&... args)
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{
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BOOST_ASSERT(p_);
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BOOST_ASSERT(p_->t);
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p_->t->~T();
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beast_asio_helpers::
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deallocate(p_->t, sizeof(T), p_->handler);
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p_->t = nullptr;
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p_->handler(std::forward<Args>(args)...);
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}
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} // beast
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#endif
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