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
40// Tune characteristics, two of different types
41template<typename _Tp, typename _Cp>
42void test03()
43{
44  bool test __attribute__((unused)) = true;
45
46  typedef __gnu_cxx::__pool_base::_Tune tune_type;
47  typedef _Tp value_type;
48  typedef _Cp policy_type;
49  typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
50
51  allocator_type a;
52  tune_type t_default = a._M_get_options();
53  tune_type t_opt(32, 5120, 32, 5120, 20, 10, false);
54  tune_type t_small(16, 1024, 32, 2048, 1, 10, false);
55
56  // First instances assured.
57  tune_type t1 = t_default;
58  if (test_policy<policy_type>::per_type())
59    {
60      a._M_set_options(t_opt);
61      t1 = a._M_get_options();
62      VERIFY( t1._M_align != t_default._M_align );
63    }
64
65  // Lock tune settings.
66  typename allocator_type::pointer p1 = a.allocate(128);
67
68  allocator_type a2;
69  tune_type t2 = a2._M_get_options();
70  VERIFY( t2._M_chunk_size == t1._M_chunk_size );
71
72  typename allocator_type::pointer p2 = a2.allocate(5128);
73
74  a2._M_set_options(t_small);
75  tune_type t3 = a2._M_get_options();
76  VERIFY( t3._M_chunk_size != t_small._M_chunk_size );
77  VERIFY( t3._M_chunk_size == t2._M_chunk_size );
78
79  a.deallocate(p1, 128);
80  a2.deallocate(p2, 5128);
81}
82
83int main()
84{
85#ifdef __GTHREADS
86  test03<int, __gnu_cxx::__per_type_pool_policy<int, __pool, true> >();
87  test03<int, __gnu_cxx::__common_pool_policy<__pool, true> >();
88#endif
89
90  test03<int, __gnu_cxx::__per_type_pool_policy<int, __pool, false> >();
91  test03<int, __gnu_cxx::__common_pool_policy<__pool, false> >();
92
93  return 0;
94}
95