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singleton_pool.hpp - Hosted on DriveHQ Cloud IT Platform
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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\pool\singleton_pool.hpp
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// Copyright (C) 2000, 2001 Stephen Cleary // // 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) // // See http://www.boost.org for updates, documentation, and revision history. #ifndef BOOST_SINGLETON_POOL_HPP #define BOOST_SINGLETON_POOL_HPP #include
// boost::pool #include
// boost::details::pool::singleton_default #include
// boost::details::pool::guard #include
namespace boost { // // The singleton_pool class allows other pool interfaces for types of the same // size to share the same pool // template
struct singleton_pool { public: typedef Tag tag; typedef Mutex mutex; typedef UserAllocator user_allocator; typedef typename pool
::size_type size_type; typedef typename pool
::difference_type difference_type; BOOST_STATIC_CONSTANT(unsigned, requested_size = RequestedSize); BOOST_STATIC_CONSTANT(unsigned, next_size = NextSize); private: struct pool_type: Mutex { pool
p; pool_type():p(RequestedSize, NextSize) { } }; typedef details::pool::singleton_default
singleton; singleton_pool(); public: static void * malloc() { pool_type & p = singleton::instance(); details::pool::guard
g(p); return p.p.malloc(); } static void * ordered_malloc() { pool_type & p = singleton::instance(); details::pool::guard
g(p); return p.p.ordered_malloc(); } static void * ordered_malloc(const size_type n) { pool_type & p = singleton::instance(); details::pool::guard
g(p); return p.p.ordered_malloc(n); } static bool is_from(void * const ptr) { pool_type & p = singleton::instance(); details::pool::guard
g(p); return p.p.is_from(ptr); } static void free(void * const ptr) { pool_type & p = singleton::instance(); details::pool::guard
g(p); p.p.free(ptr); } static void ordered_free(void * const ptr) { pool_type & p = singleton::instance(); details::pool::guard
g(p); p.p.ordered_free(ptr); } static void free(void * const ptr, const size_type n) { pool_type & p = singleton::instance(); details::pool::guard
g(p); p.p.free(ptr, n); } static void ordered_free(void * const ptr, const size_type n) { pool_type & p = singleton::instance(); details::pool::guard
g(p); p.p.ordered_free(ptr, n); } static bool release_memory() { pool_type & p = singleton::instance(); details::pool::guard
g(p); return p.p.release_memory(); } static bool purge_memory() { pool_type & p = singleton::instance(); details::pool::guard
g(p); return p.p.purge_memory(); } }; } // namespace boost #endif
singleton_pool.hpp
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