1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// -*- C++ -*-
//
// Copyright (C) 2009-2015 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 */
|