Edit File: profiler_list_to_slist.h
// -*- C++ -*- // // Copyright (C) 2009-2018 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_slist.h * @brief Diagnostics for list to slist. */ // Written by Changhee Jung. #ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H #define _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H 1 #include "profile/impl/profiler.h" #include "profile/impl/profiler_node.h" #include "profile/impl/profiler_trace.h" namespace __gnu_profile { class __list2slist_info : public __object_info_base { public: __list2slist_info(__stack_t __stack) : __object_info_base(__stack), _M_rewind(false), _M_operations(0) { } // XXX: the magnitude should be multiplied with a constant factor F, // where F is 1 when the malloc size class of list nodes is different // from the malloc size class of slist nodes. When they fall into the same // class, the only slist benefit is from having to set fewer links, so // the factor F should be much smaller, closer to 0 than to 1. // This could be implemented by passing the size classes in the config // file. For now, we always assume F to be 1. float __magnitude() const { if (!_M_rewind) return _M_operations; else return 0; } void __write(FILE* __f) const { std::fprintf(__f, "%s\n", _M_rewind ? "invalid" : "valid"); } std::string __advice() const { return "change std::list to std::forward_list"; } void __opr_rewind() { _M_rewind = true; __set_invalid(); } void __record_operation() { ++_M_operations; } bool __has_rewind() { return _M_rewind; } private: bool _M_rewind; std::size_t _M_operations; }; class __list2slist_stack_info : public __list2slist_info { public: __list2slist_stack_info(const __list2slist_info& __o) : __list2slist_info(__o) { } }; class __trace_list_to_slist : public __trace_base<__list2slist_info, __list2slist_stack_info> { public: ~__trace_list_to_slist() { } __trace_list_to_slist() : __trace_base<__list2slist_info, __list2slist_stack_info>() { __id = "list-to-slist"; } void __destruct(__list2slist_info* __obj_info) { __retire_object(__obj_info); } }; inline void __trace_list_to_slist_init() { _GLIBCXX_PROFILE_DATA(_S_list_to_slist) = new __trace_list_to_slist(); } inline void __trace_list_to_slist_free() { delete _GLIBCXX_PROFILE_DATA(_S_list_to_slist); } inline void __trace_list_to_slist_report(FILE* __f, __warning_vector_t& __warnings) { __trace_report(_GLIBCXX_PROFILE_DATA(_S_list_to_slist), __f, __warnings); } inline __list2slist_info* __trace_list_to_slist_construct() { if (!__profcxx_init()) return 0; if (!__reentrance_guard::__get_in()) return 0; __reentrance_guard __get_out; return _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__add_object(__get_stack()); } inline void __trace_list_to_slist_rewind(__list2slist_info* __obj_info) { if (!__obj_info) return; __obj_info->__opr_rewind(); } inline void __trace_list_to_slist_operation(__list2slist_info* __obj_info) { if (!__obj_info) return; __obj_info->__record_operation(); } inline void __trace_list_to_slist_destruct(__list2slist_info* __obj_info) { if (!__obj_info) return; _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__destruct(__obj_info); } } // namespace __gnu_profile #endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H */
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