325 lines
8.4 KiB
C++
325 lines
8.4 KiB
C++
// -*- C++ -*-
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//
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// Copyright (C) 2009-2013 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
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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/** @file profile/impl/profiler_list_to_vector.h
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* @brief diagnostics for list to vector.
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*/
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// Written by Changhee Jung.
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#ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H
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#define _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H 1
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#include <sstream>
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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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/** @brief A list-to-vector instrumentation line in the object table. */
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class __list2vector_info
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: public __object_info_base
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{
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public:
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__list2vector_info()
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: _M_shift_count(0), _M_iterate(0), _M_resize(0), _M_list_cost(0),
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_M_vector_cost(0), _M_valid(true), _M_max_size(0) { }
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__list2vector_info(__stack_t __stack)
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: __object_info_base(__stack), _M_shift_count(0), _M_iterate(0),
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_M_resize(0), _M_list_cost(0), _M_vector_cost(0), _M_valid(true),
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_M_max_size(0) { }
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virtual ~__list2vector_info() { }
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__list2vector_info(const __list2vector_info& __o)
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: __object_info_base(__o), _M_shift_count(__o._M_shift_count),
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_M_iterate(__o._M_iterate), _M_resize(__o._M_resize),
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_M_list_cost(__o._M_list_cost), _M_vector_cost(__o._M_vector_cost),
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_M_valid(__o._M_valid), _M_max_size(__o._M_max_size) { }
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void
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__merge(const __list2vector_info& __o)
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{
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_M_shift_count += __o._M_shift_count;
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_M_iterate += __o._M_iterate;
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_M_vector_cost += __o._M_vector_cost;
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_M_list_cost += __o._M_list_cost;
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_M_valid &= __o._M_valid;
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_M_resize += __o._M_resize;
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_M_max_size = std::max( _M_max_size, __o._M_max_size);
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}
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void
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__write(FILE* __f) const
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{
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std::fprintf(__f, "%Zu %Zu %Zu %.0f %.0f\n", _M_shift_count,
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_M_resize, _M_iterate, _M_vector_cost, _M_list_cost);
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}
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float
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__magnitude() const
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{ return _M_list_cost - _M_vector_cost; }
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std::string
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__advice() const
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{
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std::stringstream __sstream;
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__sstream
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<< "change std::list to std::vector and its initial size from 0 to "
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<< _M_max_size;
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return __sstream.str();
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}
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std::size_t
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__shift_count()
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{ return _M_shift_count; }
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std::size_t
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__iterate()
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{ return _M_iterate; }
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float
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__list_cost()
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{ return _M_list_cost; }
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std::size_t
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__resize()
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{ return _M_resize; }
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void
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__set_list_cost(float __lc)
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{ _M_list_cost = __lc; }
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void
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__set_vector_cost(float __vc)
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{ _M_vector_cost = __vc; }
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bool
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__is_valid()
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{ return _M_valid; }
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void
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__set_invalid()
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{ _M_valid = false; }
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void
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__opr_insert(std::size_t __shift, std::size_t __size)
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{
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_M_shift_count += __shift;
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_M_max_size = std::max(_M_max_size, __size);
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}
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void
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__opr_iterate(std::size_t __num)
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{ _M_iterate += __num;}
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void
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__resize(std::size_t __from, std::size_t)
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{ _M_resize += __from; }
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private:
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std::size_t _M_shift_count;
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std::size_t _M_iterate;
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std::size_t _M_resize;
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float _M_list_cost;
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float _M_vector_cost;
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bool _M_valid;
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std::size_t _M_max_size;
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};
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class __list2vector_stack_info
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: public __list2vector_info
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{
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public:
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__list2vector_stack_info(const __list2vector_info& __o)
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: __list2vector_info(__o) {}
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};
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class __trace_list_to_vector
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: public __trace_base<__list2vector_info, __list2vector_stack_info>
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{
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public:
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__trace_list_to_vector()
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: __trace_base<__list2vector_info, __list2vector_stack_info>()
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{ __id = "list-to-vector"; }
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~__trace_list_to_vector() { }
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// Insert a new node at construct with object, callstack and initial size.
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void
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__insert(__object_t __obj, __stack_t __stack)
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{ __add_object(__obj, __list2vector_info(__stack)); }
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// Call at destruction/clean to set container final size.
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void
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__destruct(const void* __obj)
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{
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if (!__is_on())
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return;
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__list2vector_info* __res = __get_object_info(__obj);
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if (!__res)
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return;
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float __vc = __vector_cost(__res->__shift_count(), __res->__iterate());
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float __lc = __list_cost(__res->__shift_count(), __res->__iterate());
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__res->__set_vector_cost(__vc);
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__res->__set_list_cost(__lc);
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__retire_object(__obj);
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}
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// Find the node in the live map.
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__list2vector_info* __find(const void* __obj);
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// Collect cost of operations.
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void
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__opr_insert(const void* __obj, std::size_t __shift, std::size_t __size)
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{
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__list2vector_info* __res = __get_object_info(__obj);
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if (__res)
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__res->__opr_insert(__shift, __size);
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}
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void
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__opr_iterate(const void* __obj, std::size_t __num)
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{
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__list2vector_info* __res = __get_object_info(__obj);
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if (__res)
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__res->__opr_iterate(__num);
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}
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void
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__invalid_operator(const void* __obj)
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{
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__list2vector_info* __res = __get_object_info(__obj);
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if (__res)
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__res->__set_invalid();
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}
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void
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__resize(const void* __obj, std::size_t __from, std::size_t __to)
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{
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__list2vector_info* __res = __get_object_info(__obj);
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if (__res)
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__res->__resize(__from, __to);
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}
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float
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__vector_cost(std::size_t __shift, std::size_t __iterate)
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{
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// The resulting vector will use a 'reserve' method.
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return (__shift
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* _GLIBCXX_PROFILE_DATA(__vector_shift_cost_factor).__value
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+ __iterate
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* _GLIBCXX_PROFILE_DATA(__vector_iterate_cost_factor).__value);
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}
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float
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__list_cost(std::size_t __shift, std::size_t __iterate)
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{
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return (__shift
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* _GLIBCXX_PROFILE_DATA(__list_shift_cost_factor).__value
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+ __iterate
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* _GLIBCXX_PROFILE_DATA(__list_iterate_cost_factor).__value);
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}
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};
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inline void
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__trace_list_to_vector_init()
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{ _GLIBCXX_PROFILE_DATA(_S_list_to_vector) = new __trace_list_to_vector(); }
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inline void
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__trace_list_to_vector_report(FILE* __f, __warning_vector_t& __warnings)
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{
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if (_GLIBCXX_PROFILE_DATA(_S_list_to_vector))
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{
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->
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__collect_warnings(__warnings);
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__write(__f);
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}
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}
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inline void
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__trace_list_to_vector_construct(const void* __obj)
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{
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if (!__profcxx_init())
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return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__insert(__obj, __get_stack());
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}
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inline void
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__trace_list_to_vector_destruct(const void* __obj)
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{
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if (!__profcxx_init())
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return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__destruct(__obj);
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}
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inline void
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__trace_list_to_vector_insert(const void* __obj,
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std::size_t __shift, std::size_t __size)
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{
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if (!__profcxx_init())
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return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__opr_insert(__obj, __shift,
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__size);
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}
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inline void
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__trace_list_to_vector_iterate(const void* __obj, std::size_t __num = 1)
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{
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if (!__profcxx_init())
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return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__opr_iterate(__obj, __num);
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}
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inline void
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__trace_list_to_vector_invalid_operator(const void* __obj)
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{
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if (!__profcxx_init())
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return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__invalid_operator(__obj);
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}
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inline void
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__trace_list_to_vector_resize(const void* __obj,
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std::size_t __from, std::size_t __to)
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{
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if (!__profcxx_init())
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return;
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_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__resize(__obj, __from, __to);
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}
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} // namespace __gnu_profile
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#endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H__ */
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