author | Alex Gilkes <alex.gilkes@nokia.com> |
Tue, 27 Oct 2009 16:36:35 +0000 | |
changeset 0 | 044383f39525 |
permissions | -rw-r--r-- |
0
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
1 |
#ifndef BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
2 |
#define BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
3 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
4 |
// MS compatible compilers support #pragma once |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
5 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
6 |
#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
7 |
# pragma once |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
8 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
9 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
10 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
11 |
// detail/quick_allocator.hpp |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
12 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
13 |
// Copyright (c) 2003 David Abrahams |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
14 |
// Copyright (c) 2003 Peter Dimov |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
15 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
16 |
// Distributed under the Boost Software License, Version 1.0. (See |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
17 |
// accompanying file LICENSE_1_0.txt or copy at |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
18 |
// http://www.boost.org/LICENSE_1_0.txt) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
19 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
20 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
21 |
#include <boost/config.hpp> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
22 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
23 |
#include <boost/smart_ptr/detail/lightweight_mutex.hpp> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
24 |
#include <boost/type_traits/type_with_alignment.hpp> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
25 |
#include <boost/type_traits/alignment_of.hpp> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
26 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
27 |
#include <new> // ::operator new, ::operator delete |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
28 |
#include <cstddef> // std::size_t |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
29 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
30 |
namespace boost |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
31 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
32 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
33 |
namespace detail |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
34 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
35 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
36 |
template<unsigned size, unsigned align_> union freeblock |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
37 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
38 |
typedef typename boost::type_with_alignment<align_>::type aligner_type; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
39 |
aligner_type aligner; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
40 |
char bytes[size]; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
41 |
freeblock * next; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
42 |
}; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
43 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
44 |
template<unsigned size, unsigned align_> struct allocator_impl |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
45 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
46 |
typedef freeblock<size, align_> block; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
47 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
48 |
// It may seem odd to use such small pages. |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
49 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
50 |
// However, on a typical Windows implementation that uses |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
51 |
// the OS allocator, "normal size" pages interact with the |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
52 |
// "ordinary" operator new, slowing it down dramatically. |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
53 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
54 |
// 512 byte pages are handled by the small object allocator, |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
55 |
// and don't interfere with ::new. |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
56 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
57 |
// The other alternative is to use much bigger pages (1M.) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
58 |
// |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
59 |
// It is surprisingly easy to hit pathological behavior by |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
60 |
// varying the page size. g++ 2.96 on Red Hat Linux 7.2, |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
61 |
// for example, passionately dislikes 496. 512 seems OK. |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
62 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
63 |
#if defined(BOOST_QA_PAGE_SIZE) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
64 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
65 |
enum { items_per_page = BOOST_QA_PAGE_SIZE / size }; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
66 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
67 |
#else |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
68 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
69 |
enum { items_per_page = 512 / size }; // 1048560 / size |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
70 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
71 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
72 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
73 |
#ifdef BOOST_HAS_THREADS |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
74 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
75 |
static lightweight_mutex & mutex() |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
76 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
77 |
static lightweight_mutex m; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
78 |
return m; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
79 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
80 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
81 |
static lightweight_mutex * mutex_init; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
82 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
83 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
84 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
85 |
static block * free; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
86 |
static block * page; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
87 |
static unsigned last; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
88 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
89 |
static inline void * alloc() |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
90 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
91 |
#ifdef BOOST_HAS_THREADS |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
92 |
lightweight_mutex::scoped_lock lock( mutex() ); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
93 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
94 |
if(block * x = free) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
95 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
96 |
free = x->next; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
97 |
return x; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
98 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
99 |
else |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
100 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
101 |
if(last == items_per_page) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
102 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
103 |
// "Listen to me carefully: there is no memory leak" |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
104 |
// -- Scott Meyers, Eff C++ 2nd Ed Item 10 |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
105 |
page = ::new block[items_per_page]; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
106 |
last = 0; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
107 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
108 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
109 |
return &page[last++]; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
110 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
111 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
112 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
113 |
static inline void * alloc(std::size_t n) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
114 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
115 |
if(n != size) // class-specific new called for a derived object |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
116 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
117 |
return ::operator new(n); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
118 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
119 |
else |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
120 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
121 |
#ifdef BOOST_HAS_THREADS |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
122 |
lightweight_mutex::scoped_lock lock( mutex() ); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
123 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
124 |
if(block * x = free) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
125 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
126 |
free = x->next; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
127 |
return x; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
128 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
129 |
else |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
130 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
131 |
if(last == items_per_page) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
132 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
133 |
page = ::new block[items_per_page]; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
134 |
last = 0; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
135 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
136 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
137 |
return &page[last++]; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
138 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
139 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
140 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
141 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
142 |
static inline void dealloc(void * pv) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
143 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
144 |
if(pv != 0) // 18.4.1.1/13 |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
145 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
146 |
#ifdef BOOST_HAS_THREADS |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
147 |
lightweight_mutex::scoped_lock lock( mutex() ); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
148 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
149 |
block * pb = static_cast<block *>(pv); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
150 |
pb->next = free; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
151 |
free = pb; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
152 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
153 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
154 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
155 |
static inline void dealloc(void * pv, std::size_t n) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
156 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
157 |
if(n != size) // class-specific delete called for a derived object |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
158 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
159 |
::operator delete(pv); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
160 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
161 |
else if(pv != 0) // 18.4.1.1/13 |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
162 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
163 |
#ifdef BOOST_HAS_THREADS |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
164 |
lightweight_mutex::scoped_lock lock( mutex() ); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
165 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
166 |
block * pb = static_cast<block *>(pv); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
167 |
pb->next = free; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
168 |
free = pb; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
169 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
170 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
171 |
}; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
172 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
173 |
#ifdef BOOST_HAS_THREADS |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
174 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
175 |
template<unsigned size, unsigned align_> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
176 |
lightweight_mutex * allocator_impl<size, align_>::mutex_init = &allocator_impl<size, align_>::mutex(); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
177 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
178 |
#endif |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
179 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
180 |
template<unsigned size, unsigned align_> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
181 |
freeblock<size, align_> * allocator_impl<size, align_>::free = 0; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
182 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
183 |
template<unsigned size, unsigned align_> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
184 |
freeblock<size, align_> * allocator_impl<size, align_>::page = 0; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
185 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
186 |
template<unsigned size, unsigned align_> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
187 |
unsigned allocator_impl<size, align_>::last = allocator_impl<size, align_>::items_per_page; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
188 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
189 |
template<class T> |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
190 |
struct quick_allocator: public allocator_impl< sizeof(T), boost::alignment_of<T>::value > |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
191 |
{ |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
192 |
}; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
193 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
194 |
} // namespace detail |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
195 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
196 |
} // namespace boost |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
197 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
198 |
#endif // #ifndef BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED |