1// 2004-08-25 Benjamin Kosnik <bkoz@redhat.com>
2//
3// Copyright (C) 2004, 2005, 2009 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
25template<typename _Tp>
26struct test_policy
27{ static bool per_type() { return true; } };
28
29using __gnu_cxx::__pool;
30using __gnu_cxx::__common_pool_policy;
31
32template<>
33struct test_policy<__common_pool_policy<__pool, true> >
34{ static bool per_type() { return false; } };
35
36template<>
37struct test_policy<__common_pool_policy<__pool, false> >
38{ static bool per_type() { return false; } };
39
40struct pod2
41{
42  int i;
43  int j;
44  int k;
45};
46
47// Tune characteristics, two of different instantiations
48template<typename _Tp, typename _Cp>
49void test04()
50{
51  bool test __attribute__((unused)) = true;
52
53  typedef __gnu_cxx::__pool_base::_Tune tune_type;
54  typedef _Tp value_type;
55  typedef _Cp policy_type;
56  typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
57
58  allocator_type a;
59  tune_type t_default = a._M_get_options();
60  tune_type t_opt(32, 5120, 32, 5120, 20, 10, false);
61  tune_type t_small(16, 1024, 32, 2048, 1, 10, false);
62
63  // First instance of local type assured.
64  tune_type t1 = t_default;
65  if (test_policy<policy_type>::per_type())
66    {
67      a._M_set_options(t_opt);
68      t1 = a._M_get_options();
69      VERIFY( t1._M_align != t_default._M_align );
70    }
71
72  // Lock tune settings.
73  typename allocator_type::pointer p1 = a.allocate(128);
74
75  typedef pod2 value2_type;
76  typedef typename allocator_type::template rebind<value2_type>::other rebind_type;
77
78  rebind_type a2;
79  tune_type t2 = a2._M_get_options();
80
81  // Both policy_type and rebind_type::policy_type have same characteristics.
82  if (test_policy<policy_type>::per_type())
83    {
84      a2._M_set_options(t_opt);
85      tune_type t = a2._M_get_options();
86      VERIFY( t2._M_align != t._M_align );
87      t2 = t;
88    }
89
90  typename rebind_type::pointer p2 = a2.allocate(5128);
91
92  a2._M_set_options(t_small);
93  tune_type t4 = a2._M_get_options();
94  VERIFY( t4._M_chunk_size != t_small._M_chunk_size );
95  VERIFY( t4._M_chunk_size == t2._M_chunk_size );
96
97  a.deallocate(p1, 128);
98  a2.deallocate(p2, 5128);
99}
100
101int main()
102{
103#ifdef __GTHREADS
104  test04<float, __gnu_cxx::__common_pool_policy<__pool, true> >();
105  test04<double, __gnu_cxx::__per_type_pool_policy<double, __pool, true> >();
106#endif
107  test04<float, __gnu_cxx::__common_pool_policy<__pool, false> >();
108  test04<double, __gnu_cxx::__per_type_pool_policy<double, __pool, false> >();
109
110  return 0;
111}
112