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handler_alloc_hook.hpp - Hosted on DriveHQ Cloud IT Platform
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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\asio\handler_alloc_hook.hpp
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// // handler_alloc_hook.hpp // ~~~~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2008 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 BOOST_ASIO_HANDLER_ALLOC_HOOK_HPP #define BOOST_ASIO_HANDLER_ALLOC_HOOK_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include
#include
#include
#include
#include
namespace boost { namespace asio { /// Default allocation function for handlers. /** * Asynchronous operations may need to allocate temporary objects. Since * asynchronous operations have a handler function object, these temporary * objects can be said to be associated with the handler. * * Implement asio_handler_allocate and asio_handler_deallocate for your own * handlers to provide custom allocation for these temporary objects. * * This default implementation is simply: * @code * return ::operator new(bytes); * @endcode * * @note All temporary objects associated with a handler will be deallocated * before the upcall to the handler is performed. This allows the same memory to * be reused for a subsequent asynchronous operation initiated by the handler. * * @par Example * @code * class my_handler; * * void* asio_handler_allocate(std::size_t size, my_handler* context) * { * return ::operator new(size); * } * * void asio_handler_deallocate(void* pointer, std::size_t size, * my_handler* context) * { * ::operator delete(pointer); * } * @endcode */ inline void* asio_handler_allocate(std::size_t size, ...) { return ::operator new(size); } /// Default deallocation function for handlers. /** * Implement asio_handler_allocate and asio_handler_deallocate for your own * handlers to provide custom allocation for the associated temporary objects. * * This default implementation is simply: * @code * ::operator delete(pointer); * @endcode * * @sa asio_handler_allocate. */ inline void asio_handler_deallocate(void* pointer, std::size_t size, ...) { (void)(size); ::operator delete(pointer); } } // namespace asio } // namespace boost #include
#endif // BOOST_ASIO_HANDLER_ALLOC_HOOK_HPP
handler_alloc_hook.hpp
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