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
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqmlmemoryprofiler_p.h"
#include <QUrl>
QT_BEGIN_NAMESPACE
enum LibraryState
{
Unloaded,
Failed,
Loaded
};
static LibraryState state = Unloaded;
typedef void (qmlmemprofile_stats)(int *allocCount, int *bytesAllocated);
typedef void (qmlmemprofile_clear)();
typedef void (qmlmemprofile_enable)();
typedef void (qmlmemprofile_disable)();
typedef void (qmlmemprofile_push_location)(const char *filename, int lineNumber);
typedef void (qmlmemprofile_pop_location)();
typedef void (qmlmemprofile_save)(const char *filename);
typedef int (qmlmemprofile_is_enabled)();
static qmlmemprofile_stats *memprofile_stats;
static qmlmemprofile_clear *memprofile_clear;
static qmlmemprofile_enable *memprofile_enable;
static qmlmemprofile_disable *memprofile_disable;
static qmlmemprofile_push_location *memprofile_push_location;
static qmlmemprofile_pop_location *memprofile_pop_location;
static qmlmemprofile_save *memprofile_save;
static qmlmemprofile_is_enabled *memprofile_is_enabled;
extern QFunctionPointer qt_linux_find_symbol_sys(const char *symbol);
static bool openLibrary()
{
#ifdef Q_OS_LINUX
if (state == Unloaded) {
memprofile_stats = (qmlmemprofile_stats *) qt_linux_find_symbol_sys("qmlmemprofile_stats");
memprofile_clear = (qmlmemprofile_clear *) qt_linux_find_symbol_sys("qmlmemprofile_clear");
memprofile_enable = (qmlmemprofile_enable *) qt_linux_find_symbol_sys("qmlmemprofile_enable");
memprofile_disable = (qmlmemprofile_disable *) qt_linux_find_symbol_sys("qmlmemprofile_disable");
memprofile_push_location = (qmlmemprofile_push_location *) qt_linux_find_symbol_sys("qmlmemprofile_push_location");
memprofile_pop_location = (qmlmemprofile_pop_location *) qt_linux_find_symbol_sys("qmlmemprofile_pop_location");
memprofile_save = (qmlmemprofile_save *) qt_linux_find_symbol_sys("qmlmemprofile_save");
memprofile_is_enabled = (qmlmemprofile_is_enabled *) qt_linux_find_symbol_sys("qmlmemprofile_is_enabled");
if (memprofile_stats && memprofile_clear && memprofile_enable && memprofile_disable &&
memprofile_push_location && memprofile_pop_location && memprofile_save && memprofile_is_enabled)
state = Loaded;
else
state = Failed;
}
#endif // Q_OS_LINUX
return state == Loaded;
}
QQmlMemoryScope::QQmlMemoryScope(const QUrl &url) : pushed(false)
{
if (openLibrary() && memprofile_is_enabled()) {
const char *location = url.path().toUtf8().constData();
memprofile_push_location(location, 0);
pushed = true;
}
}
QQmlMemoryScope::QQmlMemoryScope(const char *string) : pushed(false)
{
if (openLibrary() && memprofile_is_enabled()) {
memprofile_push_location(string, 0);
pushed = true;
}
}
QQmlMemoryScope::~QQmlMemoryScope()
{
if (pushed)
memprofile_pop_location();
}
bool QQmlMemoryProfiler::isEnabled()
{
if (openLibrary())
return memprofile_is_enabled();
return false;
}
void QQmlMemoryProfiler::enable()
{
if (openLibrary())
memprofile_enable();
}
void QQmlMemoryProfiler::disable()
{
if (openLibrary())
memprofile_disable();
}
void QQmlMemoryProfiler::clear()
{
if (openLibrary())
memprofile_clear();
}
void QQmlMemoryProfiler::stats(int *allocCount, int *bytesAllocated)
{
if (openLibrary())
memprofile_stats(allocCount, bytesAllocated);
}
void QQmlMemoryProfiler::save(const char *filename)
{
if (openLibrary())
memprofile_save(filename);
}
QT_END_NAMESPACE
|
