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- // 2004-08-25 Benjamin Kosnik <bkoz@redhat.com>
- //
- // Copyright (C) 2004-2022 Free Software Foundation, Inc.
- //
- // This file is part of the GNU ISO C++ Library. This library is free
- // software; you can redistribute it and/or modify it under the
- // terms of the GNU General Public License as published by the
- // Free Software Foundation; either version 3, or (at your option)
- // any later version.
- //
- // This library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License along
- // with this library; see the file COPYING3. If not see
- // <http://www.gnu.org/licenses/>.
- #include <testsuite_hooks.h>
- #include <memory>
- #include <ext/mt_allocator.h>
- // Tune characteristics, two of same type
- template<typename _Tp>
- struct test_policy
- { static bool per_type() { return true; } };
- using __gnu_cxx::__pool;
- using __gnu_cxx::__common_pool_policy;
- template<>
- struct test_policy<__common_pool_policy<__pool, true> >
- { static bool per_type() { return false; } };
- template<>
- struct test_policy<__common_pool_policy<__pool, false> >
- { static bool per_type() { return false; } };
- // Tune characteristics, two of different types
- template<typename _Tp, typename _Cp>
- void test03()
- {
- typedef __gnu_cxx::__pool_base::_Tune tune_type;
- typedef _Tp value_type;
- typedef _Cp policy_type;
- typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
- allocator_type a;
- tune_type t_default = a._M_get_options();
- tune_type t_opt(32, 5120, 32, 5120, 20, 10, false);
- tune_type t_small(16, 1024, 32, 2048, 1, 10, false);
- // First instances assured.
- tune_type t1 = t_default;
- if (test_policy<policy_type>::per_type())
- {
- a._M_set_options(t_opt);
- t1 = a._M_get_options();
- VERIFY( t1._M_align != t_default._M_align );
- }
- // Lock tune settings.
- typename allocator_type::pointer p1 = a.allocate(128);
- allocator_type a2;
- tune_type t2 = a2._M_get_options();
- VERIFY( t2._M_chunk_size == t1._M_chunk_size );
- typename allocator_type::pointer p2 = a2.allocate(5128);
- a2._M_set_options(t_small);
- tune_type t3 = a2._M_get_options();
- VERIFY( t3._M_chunk_size != t_small._M_chunk_size );
- VERIFY( t3._M_chunk_size == t2._M_chunk_size );
- a.deallocate(p1, 128);
- a2.deallocate(p2, 5128);
- }
- int main()
- {
- #ifdef __GTHREADS
- test03<int, __gnu_cxx::__per_type_pool_policy<int, __pool, true> >();
- test03<int, __gnu_cxx::__common_pool_policy<__pool, true> >();
- #endif
- test03<int, __gnu_cxx::__per_type_pool_policy<int, __pool, false> >();
- test03<int, __gnu_cxx::__common_pool_policy<__pool, false> >();
- return 0;
- }
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