| // -*- C++ -*- |
| // |
| // Copyright (C) 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 2, 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 COPYING. If not, write to |
| // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, |
| // MA 02111-1307, USA. |
| |
| // As a special exception, you may use this file as part of a free |
| // software library without restriction. Specifically, if other files |
| // instantiate templates or use macros or inline functions from this |
| // file, or you compile this file and link it with other files to |
| // produce an executable, this file does not by itself cause the |
| // resulting executable to be covered by the GNU General Public |
| // License. This exception does not however invalidate any other |
| // reasons why the executable file might be covered by the GNU General |
| // Public License. |
| |
| /** @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 |
| |
| #ifdef __GXX_EXPERIMENTAL_CXX0X__ |
| #include <cstdlib> |
| #include <cstdio> |
| #include <cstring> |
| #else |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #endif |
| #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() : _M_rewind(false), _M_operations(0) {} |
| __list2slist_info(__stack_t __stack) |
| : _M_rewind(false), _M_operations(0),__object_info_base(__stack) {} |
| virtual ~__list2slist_info() {} |
| __list2slist_info(const __list2slist_info& __o) : __object_info_base(__o) |
| { _M_rewind = __o._M_rewind; _M_operations = __o._M_operations; } |
| // 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 __merge(const __list2slist_info& __o) {}; |
| void __write(FILE* __f) const; |
| const char* __advice() const |
| { return strdup("change std::list to std::forward_list"); } |
| void __opr_rewind() { _M_rewind = true; _M_valid = false;} |
| void __record_operation() { _M_operations++; } |
| bool __has_rewind() { return _M_rewind; } |
| |
| private: |
| bool _M_rewind; |
| 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 __opr_rewind(const void* __obj); |
| void __record_operation(const void* __obj); |
| void __insert(const __object_t __obj, __stack_t __stack) |
| { __add_object(__obj, __list2slist_info(__stack)); } |
| void __destruct(const void* __obj); |
| }; |
| |
| inline void __list2slist_info::__write(FILE* __f) const |
| { |
| fprintf(__f, "%s\n", _M_rewind ? "invalid" : "valid"); |
| } |
| |
| inline void __trace_list_to_slist::__destruct(const void* __obj) |
| { |
| if (!__is_on()) |
| return; |
| |
| __list2slist_info* __res = __get_object_info(__obj); |
| if (!__res) |
| return; |
| |
| __retire_object(__obj); |
| } |
| |
| 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_report(FILE* __f, |
| __warning_vector_t& __warnings) |
| { |
| if (_GLIBCXX_PROFILE_DATA(_S_list_to_slist)) { |
| _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__collect_warnings(__warnings); |
| _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__write(__f); |
| } |
| } |
| |
| inline void __trace_list_to_slist::__opr_rewind(const void* __obj) |
| { |
| __list2slist_info* __res = __get_object_info(__obj); |
| if (__res) |
| __res->__opr_rewind(); |
| } |
| |
| inline void __trace_list_to_slist::__record_operation(const void* __obj) |
| { |
| __list2slist_info* __res = __get_object_info(__obj); |
| if (__res) |
| __res->__record_operation(); |
| } |
| |
| inline void __trace_list_to_slist_rewind(const void* __obj) |
| { |
| if (!__profcxx_init()) return; |
| |
| _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__opr_rewind(__obj); |
| } |
| |
| inline void __trace_list_to_slist_operation(const void* __obj) |
| { |
| if (!__profcxx_init()) return; |
| |
| _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__record_operation(__obj); |
| } |
| |
| inline void __trace_list_to_slist_construct(const void* __obj) |
| { |
| if (!__profcxx_init()) return; |
| |
| _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__insert(__obj, __get_stack()); |
| } |
| |
| inline void __trace_list_to_slist_destruct(const void* __obj) |
| { |
| if (!__profcxx_init()) return; |
| |
| _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__destruct(__obj); |
| } |
| |
| } // namespace __gnu_profile |
| #endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H */ |