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1 | // 2004-08-25 Benjamin Kosnik <bkoz@redhat.com> |
2 | // | |
3 | // Copyright (C) 2004 Free Software Foundation, Inc. | |
4 | // | |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 2, or (at your option) | |
9 | // any later version. | |
10 | // | |
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
18 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
19 | // USA. | |
20 | ||
21 | #include <cassert> | |
22 | #include <memory> | |
23 | #include <ext/mt_allocator.h> | |
24 | ||
25 | struct pod | |
26 | { | |
27 | int i; | |
28 | }; | |
29 | ||
30 | // Tune characteristics, two of same type | |
31 | template<typename _Tp> | |
32 | struct test_policy | |
33 | { static bool per_type() { return true; } }; | |
34 | ||
35 | template<bool _Thread> | |
36 | struct test_policy<__gnu_cxx::__common_pool_policy<_Thread> > | |
37 | { | |
38 | typedef __gnu_cxx::__common_pool_policy<_Thread> pool_type; | |
39 | static bool per_type() { return false; } | |
40 | }; | |
41 | ||
42 | struct pod2 | |
43 | { | |
44 | int i; | |
45 | int j; | |
46 | }; | |
47 | ||
48 | // Tune characteristics, two of different instantiations | |
49 | template<typename _Tp, typename _Cp> | |
50 | void test04() | |
51 | { | |
52 | typedef __gnu_cxx::__pool_base::_Tune tune_type; | |
53 | typedef _Tp value_type; | |
54 | typedef _Cp policy_type; | |
55 | ||
56 | typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type; | |
57 | tune_type t_default; | |
58 | tune_type t_opt(16, 5120, 32, 5120, 20, 10, false); | |
59 | tune_type t_single(16, 5120, 32, 5120, 1, 10, false); | |
60 | ||
61 | allocator_type a; | |
62 | tune_type t1 = a._M_get_options(); | |
63 | tune_type t2; | |
64 | if (test_policy<policy_type>::per_type()) | |
65 | { | |
66 | assert(t1._M_align == t_default._M_align); | |
67 | a._M_set_options(t_opt); | |
68 | t2 = a._M_get_options(); | |
69 | assert(t1._M_align != t2._M_align); | |
70 | } | |
71 | else | |
72 | t2 = t1; | |
73 | ||
74 | // Lock tune settings. | |
75 | typename allocator_type::pointer p1 = a.allocate(128); | |
76 | ||
77 | // First instance of local type assured. | |
78 | typedef pod2 value2_type; | |
79 | typedef typename allocator_type::template rebind<value2_type>::other rebind_type; | |
80 | ||
81 | rebind_type a2; | |
82 | tune_type t3 = a2._M_get_options(); | |
83 | tune_type t4; | |
84 | ||
85 | // Both policy_type and rebind_type::policy_type have same characteristics. | |
86 | if (test_policy<policy_type>::per_type()) | |
87 | { | |
88 | assert(t3._M_align == t_default._M_align); | |
89 | a2._M_set_options(t_opt); | |
90 | t4 = a2._M_get_options(); | |
91 | assert(t3._M_align != t4._M_align); | |
92 | t3 = t4; | |
93 | } | |
94 | else | |
95 | assert(t3._M_max_threads == t2._M_max_threads); | |
96 | ||
97 | typename rebind_type::pointer p2 = a2.allocate(5128); | |
98 | ||
99 | a2._M_set_options(t_single); | |
100 | t4 = a2._M_get_options(); | |
101 | assert(t4._M_max_threads != t_single._M_max_threads); | |
102 | assert(t4._M_max_threads == t3._M_max_threads); | |
103 | ||
104 | a.deallocate(p1, 128); | |
105 | a2.deallocate(p2, 5128); | |
106 | } | |
107 | ||
108 | int main() | |
109 | { | |
110 | #ifdef __GTHREADS | |
111 | test04<float, __gnu_cxx::__common_pool_policy<true> >(); | |
112 | test04<double, __gnu_cxx::__per_type_pool_policy<double, true> >(); | |
113 | #endif | |
114 | test04<float, __gnu_cxx::__common_pool_policy<false> >(); | |
115 | test04<double, __gnu_cxx::__per_type_pool_policy<double, false> >(); | |
116 | ||
117 | return 0; | |
118 | } |