1 // 2004-08-25 Benjamin Kosnik <bkoz@redhat.com>
2 //
3 // Copyright (C) 2004-2021 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 3, 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 COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 #include <testsuite_hooks.h>
21 #include <memory>
22 #include <ext/mt_allocator.h>
23
24 // Tune characteristics, two of same type
25 template<typename _Tp>
26 struct test_policy
per_typetest_policy27 { static bool per_type() { return true; } };
28
29 using __gnu_cxx::__pool;
30 using __gnu_cxx::__common_pool_policy;
31
32 template<>
33 struct test_policy<__common_pool_policy<__pool, true> >
per_typetest_policy34 { static bool per_type() { return false; } };
35
36 template<>
37 struct test_policy<__common_pool_policy<__pool, false> >
per_typetest_policy38 { static bool per_type() { return false; } };
39
40 struct pod2
41 {
42 int i;
43 int j;
44 int k;
45 };
46
47 // Tune characteristics, two of different instantiations
48 template<typename _Tp, typename _Cp>
test04()49 void test04()
50 {
51 typedef __gnu_cxx::__pool_base::_Tune tune_type;
52 typedef _Tp value_type;
53 typedef _Cp policy_type;
54 typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
55
56 allocator_type a;
57 tune_type t_default = a._M_get_options();
58 tune_type t_opt(32, 5120, 32, 5120, 20, 10, false);
59 tune_type t_small(16, 1024, 32, 2048, 1, 10, false);
60
61 // First instance of local type assured.
62 tune_type t1 = t_default;
63 if (test_policy<policy_type>::per_type())
64 {
65 a._M_set_options(t_opt);
66 t1 = a._M_get_options();
67 VERIFY( t1._M_align != t_default._M_align );
68 }
69
70 // Lock tune settings.
71 typename allocator_type::pointer p1 = a.allocate(128);
72
73 typedef pod2 value2_type;
74 typedef typename allocator_type::template rebind<value2_type>::other rebind_type;
75
76 rebind_type a2;
77 tune_type t2 = a2._M_get_options();
78
79 // Both policy_type and rebind_type::policy_type have same characteristics.
80 if (test_policy<policy_type>::per_type())
81 {
82 a2._M_set_options(t_opt);
83 tune_type t = a2._M_get_options();
84 VERIFY( t2._M_align != t._M_align );
85 t2 = t;
86 }
87
88 typename rebind_type::pointer p2 = a2.allocate(5128);
89
90 a2._M_set_options(t_small);
91 tune_type t4 = a2._M_get_options();
92 VERIFY( t4._M_chunk_size != t_small._M_chunk_size );
93 VERIFY( t4._M_chunk_size == t2._M_chunk_size );
94
95 a.deallocate(p1, 128);
96 a2.deallocate(p2, 5128);
97 }
98
main()99 int main()
100 {
101 #ifdef __GTHREADS
102 test04<float, __gnu_cxx::__common_pool_policy<__pool, true> >();
103 test04<double, __gnu_cxx::__per_type_pool_policy<double, __pool, true> >();
104 #endif
105 test04<float, __gnu_cxx::__common_pool_policy<__pool, false> >();
106 test04<double, __gnu_cxx::__per_type_pool_policy<double, __pool, false> >();
107
108 return 0;
109 }
110