| // -*- C++ -*- |
| // |
| // Copyright (C) 2009-2016 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. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // 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/>. |
| |
| /** @file profile/impl/profiler_list_to_vector.h |
| * @brief diagnostics for list to vector. |
| */ |
| |
| // Written by Changhee Jung. |
| |
| #ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H |
| #define _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H 1 |
| |
| #include <sstream> |
| |
| #include "profile/impl/profiler.h" |
| #include "profile/impl/profiler_node.h" |
| #include "profile/impl/profiler_trace.h" |
| |
| namespace __gnu_profile |
| { |
| /** @brief A list-to-vector instrumentation line in the object table. */ |
| class __list2vector_info |
| : public __object_info_base |
| { |
| public: |
| __list2vector_info(__stack_t __stack) |
| : __object_info_base(__stack), _M_shift_count(0), _M_iterate(0), |
| _M_resize(0), _M_list_cost(0), _M_vector_cost(0), |
| _M_max_size(0) { } |
| |
| void |
| __merge(const __list2vector_info& __o) |
| { |
| __object_info_base::__merge(__o); |
| _M_shift_count += __o._M_shift_count; |
| _M_iterate += __o._M_iterate; |
| _M_vector_cost += __o._M_vector_cost; |
| _M_list_cost += __o._M_list_cost; |
| _M_resize += __o._M_resize; |
| _M_max_size = std::max( _M_max_size, __o._M_max_size); |
| } |
| |
| void |
| __write(FILE* __f) const |
| { |
| std::fprintf(__f, "%Zu %Zu %Zu %.0f %.0f\n", _M_shift_count, |
| _M_resize, _M_iterate, _M_vector_cost, _M_list_cost); |
| } |
| |
| float |
| __magnitude() const |
| { return _M_list_cost - _M_vector_cost; } |
| |
| std::string |
| __advice() const |
| { |
| std::stringstream __sstream; |
| __sstream |
| << "change std::list to std::vector and its initial size from 0 to " |
| << _M_max_size; |
| return __sstream.str(); |
| } |
| |
| std::size_t |
| __shift_count() |
| { return _M_shift_count; } |
| |
| std::size_t |
| __iterate() |
| { return _M_iterate; } |
| |
| float |
| __list_cost() |
| { return _M_list_cost; } |
| |
| std::size_t |
| __resize() |
| { return _M_resize; } |
| |
| void |
| __set_list_cost(float __lc) |
| { _M_list_cost = __lc; } |
| |
| void |
| __set_vector_cost(float __vc) |
| { _M_vector_cost = __vc; } |
| |
| void |
| __opr_insert(std::size_t __shift, std::size_t __size) |
| { |
| _M_shift_count += __shift; |
| _M_max_size = std::max(_M_max_size, __size); |
| } |
| |
| void |
| __opr_iterate(int __num) |
| { __gnu_cxx::__atomic_add(&_M_iterate, __num); } |
| |
| void |
| __resize(std::size_t __from, std::size_t) |
| { _M_resize += __from; } |
| |
| private: |
| std::size_t _M_shift_count; |
| mutable _Atomic_word _M_iterate; |
| std::size_t _M_resize; |
| float _M_list_cost; |
| float _M_vector_cost; |
| std::size_t _M_max_size; |
| }; |
| |
| class __list2vector_stack_info |
| : public __list2vector_info |
| { |
| public: |
| __list2vector_stack_info(const __list2vector_info& __o) |
| : __list2vector_info(__o) {} |
| }; |
| |
| class __trace_list_to_vector |
| : public __trace_base<__list2vector_info, __list2vector_stack_info> |
| { |
| public: |
| __trace_list_to_vector() |
| : __trace_base<__list2vector_info, __list2vector_stack_info>() |
| { __id = "list-to-vector"; } |
| |
| ~__trace_list_to_vector() { } |
| |
| // Call at destruction/clean to set container final size. |
| void |
| __destruct(__list2vector_info* __obj_info) |
| { |
| float __vc = __vector_cost(__obj_info->__shift_count(), |
| __obj_info->__iterate()); |
| float __lc = __list_cost(__obj_info->__shift_count(), |
| __obj_info->__iterate()); |
| __obj_info->__set_vector_cost(__vc); |
| __obj_info->__set_list_cost(__lc); |
| __retire_object(__obj_info); |
| } |
| |
| // Collect cost of operations. |
| float |
| __vector_cost(std::size_t __shift, std::size_t __iterate) |
| { |
| // The resulting vector will use a 'reserve' method. |
| return (__shift |
| * _GLIBCXX_PROFILE_DATA(__vector_shift_cost_factor).__value |
| + __iterate |
| * _GLIBCXX_PROFILE_DATA(__vector_iterate_cost_factor).__value); |
| } |
| |
| float |
| __list_cost(std::size_t __shift, std::size_t __iterate) |
| { |
| return (__shift |
| * _GLIBCXX_PROFILE_DATA(__list_shift_cost_factor).__value |
| + __iterate |
| * _GLIBCXX_PROFILE_DATA(__list_iterate_cost_factor).__value); |
| } |
| }; |
| |
| |
| inline void |
| __trace_list_to_vector_init() |
| { _GLIBCXX_PROFILE_DATA(_S_list_to_vector) = new __trace_list_to_vector(); } |
| |
| inline void |
| __trace_list_to_vector_free() |
| { delete _GLIBCXX_PROFILE_DATA(_S_list_to_vector); } |
| |
| inline void |
| __trace_list_to_vector_report(FILE* __f, __warning_vector_t& __warnings) |
| { __trace_report(_GLIBCXX_PROFILE_DATA(_S_list_to_vector), __f, __warnings); } |
| |
| inline __list2vector_info* |
| __trace_list_to_vector_construct() |
| { |
| if (!__profcxx_init()) |
| return 0; |
| |
| if (!__reentrance_guard::__get_in()) |
| return 0; |
| |
| __reentrance_guard __get_out; |
| return _GLIBCXX_PROFILE_DATA(_S_list_to_vector) |
| ->__add_object(__get_stack()); |
| } |
| |
| inline void |
| __trace_list_to_vector_insert(__list2vector_info* __obj_info, |
| std::size_t __shift, std::size_t __size) |
| { |
| if (!__obj_info) |
| return; |
| |
| __obj_info->__opr_insert(__shift, __size); |
| } |
| |
| inline void |
| __trace_list_to_vector_iterate(__list2vector_info* __obj_info, |
| int) |
| { |
| if (!__obj_info) |
| return; |
| |
| // We only collect if an iteration took place no matter in what side. |
| __obj_info->__opr_iterate(1); |
| } |
| |
| inline void |
| __trace_list_to_vector_invalid_operator(__list2vector_info* __obj_info) |
| { |
| if (!__obj_info) |
| return; |
| |
| __obj_info->__set_invalid(); |
| } |
| |
| inline void |
| __trace_list_to_vector_resize(__list2vector_info* __obj_info, |
| std::size_t __from, std::size_t __to) |
| { |
| if (!__obj_info) |
| return; |
| |
| __obj_info->__resize(__from, __to); |
| } |
| |
| inline void |
| __trace_list_to_vector_destruct(__list2vector_info* __obj_info) |
| { |
| if (!__obj_info) |
| return; |
| |
| _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__destruct(__obj_info); |
| } |
| |
| } // namespace __gnu_profile |
| #endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H__ */ |