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Diffstat (limited to 'libstdc++-v3/include/profile/impl/profiler_list_to_vector.h')
| -rw-r--r-- | libstdc++-v3/include/profile/impl/profiler_list_to_vector.h | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/libstdc++-v3/include/profile/impl/profiler_list_to_vector.h b/libstdc++-v3/include/profile/impl/profiler_list_to_vector.h new file mode 100644 index 000000000..b3840a747 --- /dev/null +++ b/libstdc++-v3/include/profile/impl/profiler_list_to_vector.h @@ -0,0 +1,324 @@ +// -*- C++ -*- +// +// Copyright (C) 2009, 2010 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() + : _M_shift_count(0), _M_iterate(0), _M_resize(0), _M_list_cost(0), + _M_vector_cost(0), _M_valid(true), _M_max_size(0) { } + + __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_valid(true), + _M_max_size(0) { } + + virtual ~__list2vector_info() { } + + __list2vector_info(const __list2vector_info& __o) + : __object_info_base(__o), _M_shift_count(__o._M_shift_count), + _M_iterate(__o._M_iterate), _M_resize(__o._M_resize), + _M_list_cost(__o._M_list_cost), _M_vector_cost(__o._M_vector_cost), + _M_valid(__o._M_valid), _M_max_size(__o._M_max_size) { } + + void + __merge(const __list2vector_info& __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_valid &= __o._M_valid; + _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; } + + bool + __is_valid() + { return _M_valid; } + + void + __set_invalid() + { _M_valid = false; } + + 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(std::size_t __num) + { _M_iterate += __num;} + + void + __resize(std::size_t __from, std::size_t) + { _M_resize += __from; } + + private: + std::size_t _M_shift_count; + std::size_t _M_iterate; + std::size_t _M_resize; + float _M_list_cost; + float _M_vector_cost; + bool _M_valid; + 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() { } + + // Insert a new node at construct with object, callstack and initial size. + void + __insert(__object_t __obj, __stack_t __stack) + { __add_object(__obj, __list2vector_info(__stack)); } + + // Call at destruction/clean to set container final size. + void + __destruct(const void* __obj) + { + if (!__is_on()) + return; + + __list2vector_info* __res = __get_object_info(__obj); + if (!__res) + return; + + float __vc = __vector_cost(__res->__shift_count(), __res->__iterate()); + float __lc = __list_cost(__res->__shift_count(), __res->__iterate()); + __res->__set_vector_cost(__vc); + __res->__set_list_cost(__lc); + __retire_object(__obj); + } + + // Find the node in the live map. + __list2vector_info* __find(const void* __obj); + + // Collect cost of operations. + void + __opr_insert(const void* __obj, std::size_t __shift, std::size_t __size) + { + __list2vector_info* __res = __get_object_info(__obj); + if (__res) + __res->__opr_insert(__shift, __size); + } + + void + __opr_iterate(const void* __obj, std::size_t __num) + { + __list2vector_info* __res = __get_object_info(__obj); + if (__res) + __res->__opr_iterate(__num); + } + + void + __invalid_operator(const void* __obj) + { + __list2vector_info* __res = __get_object_info(__obj); + if (__res) + __res->__set_invalid(); + } + + void + __resize(const void* __obj, std::size_t __from, std::size_t __to) + { + __list2vector_info* __res = __get_object_info(__obj); + if (__res) + __res->__resize(__from, __to); + } + + 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_report(FILE* __f, __warning_vector_t& __warnings) + { + if (_GLIBCXX_PROFILE_DATA(_S_list_to_vector)) + { + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)-> + __collect_warnings(__warnings); + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__write(__f); + } + } + + inline void + __trace_list_to_vector_construct(const void* __obj) + { + if (!__profcxx_init()) + return; + + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__insert(__obj, __get_stack()); + } + + inline void + __trace_list_to_vector_destruct(const void* __obj) + { + if (!__profcxx_init()) + return; + + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__destruct(__obj); + } + + inline void + __trace_list_to_vector_insert(const void* __obj, + std::size_t __shift, std::size_t __size) + { + if (!__profcxx_init()) + return; + + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__opr_insert(__obj, __shift, + __size); + } + + inline void + __trace_list_to_vector_iterate(const void* __obj, std::size_t __num = 1) + { + if (!__profcxx_init()) + return; + + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__opr_iterate(__obj, __num); + } + + inline void + __trace_list_to_vector_invalid_operator(const void* __obj) + { + if (!__profcxx_init()) + return; + + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__invalid_operator(__obj); + } + + inline void + __trace_list_to_vector_resize(const void* __obj, + std::size_t __from, std::size_t __to) + { + if (!__profcxx_init()) + return; + + _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__resize(__obj, __from, __to); + } + +} // namespace __gnu_profile +#endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H__ */ |