183 lines
5.7 KiB
C++
183 lines
5.7 KiB
C++
// -*- C++ -*-
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//
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// Copyright (C) 2009 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 2, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING. If not, write to
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// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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// MA 02111-1307, USA.
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// As a special exception, you may use this file as part of a free
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// software library without restriction. Specifically, if other files
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// instantiate templates or use macros or inline functions from this
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// file, or you compile this file and link it with other files to
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// produce an executable, this file does not by itself cause the
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// resulting executable to be covered by the GNU General Public
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// License. This exception does not however invalidate any other
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// reasons why the executable file might be covered by the GNU General
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// Public License.
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/** @file profile/impl/profiler_list_to_slist.h
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* @brief Diagnostics for list to slist.
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*/
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// Written by Changhee Jung.
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#ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H
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#define _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H 1
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#ifdef __GXX_EXPERIMENTAL_CXX0X__
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#include <cstdlib>
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#include <cstdio>
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#include <cstring>
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#else
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#endif
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#include "profile/impl/profiler.h"
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#include "profile/impl/profiler_node.h"
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#include "profile/impl/profiler_trace.h"
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namespace __gnu_profile
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{
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class __list2slist_info: public __object_info_base
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{
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public:
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__list2slist_info() : _M_rewind(false), _M_operations(0) {}
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__list2slist_info(__stack_t __stack)
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: _M_rewind(false), _M_operations(0),__object_info_base(__stack) {}
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virtual ~__list2slist_info() {}
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__list2slist_info(const __list2slist_info& __o) : __object_info_base(__o)
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{ _M_rewind = __o._M_rewind; _M_operations = __o._M_operations; }
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// XXX: the magnitude should be multiplied with a constant factor F,
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// where F is 1 when the malloc size class of list nodes is different
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// from the malloc size class of slist nodes. When they fall into the same
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// class, the only slist benefit is from having to set fewer links, so
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// the factor F should be much smaller, closer to 0 than to 1.
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// This could be implemented by passing the size classes in the config file.
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// For now, we always assume F to be 1.
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float __magnitude() const
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{ if (!_M_rewind) return _M_operations; else return 0; }
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void __merge(const __list2slist_info& __o) {};
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void __write(FILE* __f) const;
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const char* __advice() const
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{ return strdup("change std::list to std::forward_list"); }
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void __opr_rewind() { _M_rewind = true; _M_valid = false;}
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void __record_operation() { _M_operations++; }
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bool __has_rewind() { return _M_rewind; }
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private:
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bool _M_rewind;
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size_t _M_operations;
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};
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class __list2slist_stack_info: public __list2slist_info {
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public:
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__list2slist_stack_info(const __list2slist_info& __o)
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: __list2slist_info(__o) {}
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};
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class __trace_list_to_slist
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: public __trace_base<__list2slist_info, __list2slist_stack_info>
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{
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public:
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~__trace_list_to_slist() {}
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__trace_list_to_slist()
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: __trace_base<__list2slist_info, __list2slist_stack_info>()
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{ __id = "list-to-slist"; }
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void __opr_rewind(const void* __obj);
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void __record_operation(const void* __obj);
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void __insert(const __object_t __obj, __stack_t __stack)
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{ __add_object(__obj, __list2slist_info(__stack)); }
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void __destruct(const void* __obj);
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};
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inline void __list2slist_info::__write(FILE* __f) const
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{
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fprintf(__f, "%s\n", _M_rewind ? "invalid" : "valid");
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}
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inline void __trace_list_to_slist::__destruct(const void* __obj)
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{
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if (!__is_on())
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return;
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__list2slist_info* __res = __get_object_info(__obj);
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if (!__res)
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return;
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__retire_object(__obj);
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}
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inline void __trace_list_to_slist_init()
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{
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist) = new __trace_list_to_slist();
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}
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inline void __trace_list_to_slist_report(FILE* __f,
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__warning_vector_t& __warnings)
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{
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if (_GLIBCXX_PROFILE_DATA(_S_list_to_slist)) {
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__collect_warnings(__warnings);
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__write(__f);
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}
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}
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inline void __trace_list_to_slist::__opr_rewind(const void* __obj)
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{
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__list2slist_info* __res = __get_object_info(__obj);
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if (__res)
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__res->__opr_rewind();
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}
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inline void __trace_list_to_slist::__record_operation(const void* __obj)
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{
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__list2slist_info* __res = __get_object_info(__obj);
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if (__res)
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__res->__record_operation();
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}
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inline void __trace_list_to_slist_rewind(const void* __obj)
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{
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if (!__profcxx_init()) return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__opr_rewind(__obj);
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}
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inline void __trace_list_to_slist_operation(const void* __obj)
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{
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if (!__profcxx_init()) return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__record_operation(__obj);
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}
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inline void __trace_list_to_slist_construct(const void* __obj)
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{
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if (!__profcxx_init()) return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__insert(__obj, __get_stack());
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}
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inline void __trace_list_to_slist_destruct(const void* __obj)
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{
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if (!__profcxx_init()) return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__destruct(__obj);
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}
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} // namespace __gnu_profile
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#endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H */
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