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
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ProfileModel.h"
#include "Profile.h"
#include <LibGUI/FileIconProvider.h>
#include <LibSymbolication/Symbolication.h>
#include <stdio.h>
namespace Profiler {
ProfileModel::ProfileModel(Profile& profile)
: m_profile(profile)
{
m_user_frame_icon.set_bitmap_for_size(16, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/inspector-object.png"sv).release_value_but_fixme_should_propagate_errors());
m_kernel_frame_icon.set_bitmap_for_size(16, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/inspector-object-red.png"sv).release_value_but_fixme_should_propagate_errors());
}
GUI::ModelIndex ProfileModel::index(int row, int column, GUI::ModelIndex const& parent) const
{
if (!parent.is_valid()) {
if (m_profile.roots().is_empty())
return {};
return create_index(row, column, m_profile.roots().at(row).ptr());
}
auto& remote_parent = *static_cast<ProfileNode*>(parent.internal_data());
return create_index(row, column, remote_parent.children().at(row).ptr());
}
GUI::ModelIndex ProfileModel::parent_index(GUI::ModelIndex const& index) const
{
if (!index.is_valid())
return {};
auto& node = *static_cast<ProfileNode*>(index.internal_data());
if (!node.parent())
return {};
// NOTE: If the parent has no parent, it's a root, so we have to look among the roots.
if (!node.parent()->parent()) {
for (size_t row = 0; row < m_profile.roots().size(); ++row) {
if (m_profile.roots()[row].ptr() == node.parent()) {
return create_index(row, index.column(), node.parent());
}
}
VERIFY_NOT_REACHED();
return {};
}
for (size_t row = 0; row < node.parent()->parent()->children().size(); ++row) {
if (node.parent()->parent()->children()[row].ptr() == node.parent())
return create_index(row, index.column(), node.parent());
}
VERIFY_NOT_REACHED();
return {};
}
int ProfileModel::row_count(GUI::ModelIndex const& index) const
{
if (!index.is_valid())
return m_profile.roots().size();
auto& node = *static_cast<ProfileNode*>(index.internal_data());
return node.children().size();
}
int ProfileModel::column_count(GUI::ModelIndex const&) const
{
return Column::__Count;
}
String ProfileModel::column_name(int column) const
{
switch (column) {
case Column::SampleCount:
return m_profile.show_percentages() ? "% Samples" : "# Samples";
case Column::SelfCount:
return m_profile.show_percentages() ? "% Self" : "# Self";
case Column::ObjectName:
return "Object";
case Column::StackFrame:
return "Stack Frame";
case Column::SymbolAddress:
return "Symbol Address";
default:
VERIFY_NOT_REACHED();
return {};
}
}
GUI::Variant ProfileModel::data(GUI::ModelIndex const& index, GUI::ModelRole role) const
{
auto* node = static_cast<ProfileNode*>(index.internal_data());
if (role == GUI::ModelRole::TextAlignment) {
if (index.column() == Column::SampleCount || index.column() == Column::SelfCount)
return Gfx::TextAlignment::CenterRight;
}
if (role == GUI::ModelRole::Icon) {
if (index.column() == Column::StackFrame) {
if (node->is_root()) {
return GUI::FileIconProvider::icon_for_executable(node->process().executable);
}
auto maybe_kernel_base = Symbolication::kernel_base();
if (maybe_kernel_base.has_value() && node->address() >= maybe_kernel_base.value())
return m_kernel_frame_icon;
return m_user_frame_icon;
}
return {};
}
if (role == GUI::ModelRole::Display) {
auto round_percentages = [this](auto value) {
auto percentage_full_precision = round_to<int>(
static_cast<float>(value)
* 100.f
/ static_cast<float>(m_profile.filtered_event_indices().size())
* percent_digits_rounding);
return String::formatted(
"{}.{:02}",
percentage_full_precision / percent_digits_rounding,
percentage_full_precision % percent_digits_rounding);
};
if (index.column() == Column::SampleCount) {
if (m_profile.show_percentages())
return round_percentages(node->event_count());
return node->event_count();
}
if (index.column() == Column::SelfCount) {
if (m_profile.show_percentages())
return round_percentages(node->self_count());
return node->self_count();
}
if (index.column() == Column::ObjectName)
return node->object_name();
if (index.column() == Column::StackFrame) {
if (node->is_root()) {
return String::formatted("{} ({})", node->process().basename, node->process().pid);
}
return node->symbol();
}
if (index.column() == Column::SymbolAddress) {
if (node->is_root())
return "";
auto const* library = node->process().library_metadata.library_containing(node->address());
if (!library)
return "";
return String::formatted("{:p} (offset {:p})", node->address(), node->address() - library->base);
}
return {};
}
return {};
}
Vector<GUI::ModelIndex> ProfileModel::matches(StringView searching, unsigned flags, GUI::ModelIndex const& parent)
{
RemoveReference<decltype(m_profile.roots())>* nodes { nullptr };
if (!parent.is_valid())
nodes = &m_profile.roots();
else
nodes = &static_cast<ProfileNode*>(parent.internal_data())->children();
if (!nodes)
return {};
Vector<GUI::ModelIndex> found_indices;
for (auto it = nodes->begin(); !it.is_end(); ++it) {
GUI::ModelIndex index = this->index(it.index(), StackFrame, parent);
if (!string_matches(data(index, GUI::ModelRole::Display).as_string(), searching, flags))
continue;
found_indices.append(index);
if (flags & FirstMatchOnly)
break;
}
return found_indices;
}
}
|
