1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/pool/singleton_pool.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,119 @@
     1.4 +// Copyright (C) 2000, 2001 Stephen Cleary
     1.5 +//
     1.6 +// Distributed under the Boost Software License, Version 1.0. (See
     1.7 +// accompanying file LICENSE_1_0.txt or copy at
     1.8 +// http://www.boost.org/LICENSE_1_0.txt)
     1.9 +//
    1.10 +// See http://www.boost.org for updates, documentation, and revision history.
    1.11 +
    1.12 +#ifndef BOOST_SINGLETON_POOL_HPP
    1.13 +#define BOOST_SINGLETON_POOL_HPP
    1.14 +
    1.15 +#include <boost/pool/poolfwd.hpp>
    1.16 +
    1.17 +// boost::pool
    1.18 +#include <boost/pool/pool.hpp>
    1.19 +// boost::details::pool::singleton_default
    1.20 +#include <boost/pool/detail/singleton.hpp>
    1.21 +// boost::details::pool::guard
    1.22 +#include <boost/pool/detail/guard.hpp>
    1.23 +
    1.24 +namespace boost {
    1.25 +
    1.26 +//
    1.27 +// The singleton_pool class allows other pool interfaces for types of the same
    1.28 +//   size to share the same pool
    1.29 +//
    1.30 +template <typename Tag, unsigned RequestedSize,
    1.31 +    typename UserAllocator,
    1.32 +    typename Mutex,
    1.33 +    unsigned NextSize>
    1.34 +struct singleton_pool
    1.35 +{
    1.36 +  public:
    1.37 +    typedef Tag tag;
    1.38 +    typedef Mutex mutex;
    1.39 +    typedef UserAllocator user_allocator;
    1.40 +    typedef typename pool<UserAllocator>::size_type size_type;
    1.41 +    typedef typename pool<UserAllocator>::difference_type difference_type;
    1.42 +
    1.43 +    BOOST_STATIC_CONSTANT(unsigned, requested_size = RequestedSize);
    1.44 +    BOOST_STATIC_CONSTANT(unsigned, next_size = NextSize);
    1.45 +
    1.46 +  private:
    1.47 +    struct pool_type: Mutex
    1.48 +    {
    1.49 +      pool<UserAllocator> p;
    1.50 +      pool_type():p(RequestedSize, NextSize) { }
    1.51 +    };
    1.52 +
    1.53 +    typedef details::pool::singleton_default<pool_type> singleton;
    1.54 +
    1.55 +    singleton_pool();
    1.56 +
    1.57 +  public:
    1.58 +    static void * malloc()
    1.59 +    {
    1.60 +      pool_type & p = singleton::instance();
    1.61 +      details::pool::guard<Mutex> g(p);
    1.62 +      return p.p.malloc();
    1.63 +    }
    1.64 +    static void * ordered_malloc()
    1.65 +    {
    1.66 +      pool_type & p = singleton::instance();
    1.67 +      details::pool::guard<Mutex> g(p);
    1.68 +      return p.p.ordered_malloc();
    1.69 +    }
    1.70 +    static void * ordered_malloc(const size_type n)
    1.71 +    {
    1.72 +      pool_type & p = singleton::instance();
    1.73 +      details::pool::guard<Mutex> g(p);
    1.74 +      return p.p.ordered_malloc(n);
    1.75 +    }
    1.76 +    static bool is_from(void * const ptr)
    1.77 +    {
    1.78 +      pool_type & p = singleton::instance();
    1.79 +      details::pool::guard<Mutex> g(p);
    1.80 +      return p.p.is_from(ptr);
    1.81 +    }
    1.82 +    static void free(void * const ptr)
    1.83 +    {
    1.84 +      pool_type & p = singleton::instance();
    1.85 +      details::pool::guard<Mutex> g(p);
    1.86 +      p.p.free(ptr);
    1.87 +    }
    1.88 +    static void ordered_free(void * const ptr)
    1.89 +    {
    1.90 +      pool_type & p = singleton::instance();
    1.91 +      details::pool::guard<Mutex> g(p);
    1.92 +      p.p.ordered_free(ptr);
    1.93 +    }
    1.94 +    static void free(void * const ptr, const size_type n)
    1.95 +    {
    1.96 +      pool_type & p = singleton::instance();
    1.97 +      details::pool::guard<Mutex> g(p);
    1.98 +      p.p.free(ptr, n);
    1.99 +    }
   1.100 +    static void ordered_free(void * const ptr, const size_type n)
   1.101 +    {
   1.102 +      pool_type & p = singleton::instance();
   1.103 +      details::pool::guard<Mutex> g(p);
   1.104 +      p.p.ordered_free(ptr, n);
   1.105 +    }
   1.106 +    static bool release_memory()
   1.107 +    {
   1.108 +      pool_type & p = singleton::instance();
   1.109 +      details::pool::guard<Mutex> g(p);
   1.110 +      return p.p.release_memory();
   1.111 +    }
   1.112 +    static bool purge_memory()
   1.113 +    {
   1.114 +      pool_type & p = singleton::instance();
   1.115 +      details::pool::guard<Mutex> g(p);
   1.116 +      return p.p.purge_memory();
   1.117 +    }
   1.118 +};
   1.119 +
   1.120 +} // namespace boost
   1.121 +
   1.122 +#endif