serenity/DevTools/ProfileViewer/ProfileModel.cpp
Andreas Kling 2cd212e5df Kernel: Let's say that everything < 3GB is user virtual memory
Technically the bottom 2MB is still identity-mapped for the kernel and
not made available to userspace at all, but for simplicity's sake we
can just ignore that and make "address < 0xc0000000" the canonical
check for user/kernel.
2020-01-19 08:58:33 +01:00

140 lines
4.6 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ProfileModel.h"
#include "Profile.h"
#include <AK/StringBuilder.h>
#include <ctype.h>
#include <stdio.h>
ProfileModel::ProfileModel(Profile& profile)
: m_profile(profile)
{
m_user_frame_icon.set_bitmap_for_size(16, GraphicsBitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
m_kernel_frame_icon.set_bitmap_for_size(16, GraphicsBitmap::load_from_file("/res/icons/16x16/inspector-object-red.png"));
}
ProfileModel::~ProfileModel()
{
}
GModelIndex ProfileModel::index(int row, int column, const GModelIndex& 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());
}
GModelIndex ProfileModel::parent_index(const GModelIndex& 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 (int row = 0; row < m_profile.roots().size(); ++row) {
if (m_profile.roots()[row].ptr() == node.parent()) {
return create_index(row, 0, node.parent());
}
}
ASSERT_NOT_REACHED();
return {};
}
for (int row = 0; row < node.parent()->parent()->children().size(); ++row) {
if (node.parent()->parent()->children()[row].ptr() == node.parent())
return create_index(row, 0, node.parent());
}
ASSERT_NOT_REACHED();
return {};
}
int ProfileModel::row_count(const GModelIndex& 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(const GModelIndex&) const
{
return Column::__Count;
}
String ProfileModel::column_name(int column) const
{
switch (column) {
case Column::SampleCount:
return "# Samples";
case Column::StackFrame:
return "Stack Frame";
default:
ASSERT_NOT_REACHED();
return {};
}
}
GModel::ColumnMetadata ProfileModel::column_metadata(int column) const
{
if (column == Column::SampleCount)
return ColumnMetadata { 0, TextAlignment::CenterRight };
return {};
}
GVariant ProfileModel::data(const GModelIndex& index, Role role) const
{
auto* node = static_cast<ProfileNode*>(index.internal_data());
if (role == Role::Icon) {
if (index.column() == Column::StackFrame) {
if (node->address() >= 0xc0000000)
return m_kernel_frame_icon;
return m_user_frame_icon;
}
return {};
}
if (role == Role::Display) {
if (index.column() == Column::SampleCount)
return node->sample_count();
if (index.column() == Column::StackFrame)
return node->symbol();
return {};
}
return {};
}
void ProfileModel::update()
{
did_update();
}