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Diffstat (limited to 'libstdc++-v3/testsuite/ext/mt_allocator/tune-3.cc')
-rw-r--r-- | libstdc++-v3/testsuite/ext/mt_allocator/tune-3.cc | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/ext/mt_allocator/tune-3.cc b/libstdc++-v3/testsuite/ext/mt_allocator/tune-3.cc new file mode 100644 index 000000000..b4e822d27 --- /dev/null +++ b/libstdc++-v3/testsuite/ext/mt_allocator/tune-3.cc @@ -0,0 +1,94 @@ +// 2004-08-25 Benjamin Kosnik <bkoz@redhat.com> +// +// Copyright (C) 2004, 2005, 2009 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() +{ + bool test __attribute__((unused)) = true; + + 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; +} |