110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
// 2004-08-25 Benjamin Kosnik <bkoz@redhat.com>
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//
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// Copyright (C) 2004-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <testsuite_hooks.h>
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#include <memory>
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#include <ext/mt_allocator.h>
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// Tune characteristics, two of same type
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template<typename _Tp>
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struct test_policy
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{ static bool per_type() { return true; } };
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using __gnu_cxx::__pool;
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using __gnu_cxx::__common_pool_policy;
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template<>
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struct test_policy<__common_pool_policy<__pool, true> >
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{ static bool per_type() { return false; } };
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template<>
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struct test_policy<__common_pool_policy<__pool, false> >
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{ static bool per_type() { return false; } };
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struct pod2
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{
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int i;
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int j;
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int k;
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};
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// Tune characteristics, two of different instantiations
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template<typename _Tp, typename _Cp>
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void test04()
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{
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typedef __gnu_cxx::__pool_base::_Tune tune_type;
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typedef _Tp value_type;
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typedef _Cp policy_type;
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typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
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allocator_type a;
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tune_type t_default = a._M_get_options();
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tune_type t_opt(32, 5120, 32, 5120, 20, 10, false);
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tune_type t_small(16, 1024, 32, 2048, 1, 10, false);
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// First instance of local type assured.
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tune_type t1 = t_default;
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if (test_policy<policy_type>::per_type())
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{
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a._M_set_options(t_opt);
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t1 = a._M_get_options();
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VERIFY( t1._M_align != t_default._M_align );
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}
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// Lock tune settings.
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typename allocator_type::pointer p1 = a.allocate(128);
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typedef pod2 value2_type;
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typedef typename allocator_type::template rebind<value2_type>::other rebind_type;
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rebind_type a2;
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tune_type t2 = a2._M_get_options();
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// Both policy_type and rebind_type::policy_type have same characteristics.
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if (test_policy<policy_type>::per_type())
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{
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a2._M_set_options(t_opt);
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tune_type t = a2._M_get_options();
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VERIFY( t2._M_align != t._M_align );
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t2 = t;
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}
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typename rebind_type::pointer p2 = a2.allocate(5128);
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a2._M_set_options(t_small);
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tune_type t4 = a2._M_get_options();
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VERIFY( t4._M_chunk_size != t_small._M_chunk_size );
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VERIFY( t4._M_chunk_size == t2._M_chunk_size );
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a.deallocate(p1, 128);
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a2.deallocate(p2, 5128);
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}
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int main()
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{
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#ifdef __GTHREADS
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test04<float, __gnu_cxx::__common_pool_policy<__pool, true> >();
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test04<double, __gnu_cxx::__per_type_pool_policy<double, __pool, true> >();
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#endif
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test04<float, __gnu_cxx::__common_pool_policy<__pool, false> >();
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test04<double, __gnu_cxx::__per_type_pool_policy<double, __pool, false> >();
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return 0;
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}
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