ladybird/Userland/DevTools/Profiler/SamplesModel.cpp
Andreas Kling 1fb1279cfd Profiler: Add a new "Samples" view to the main UI
You can now view the individual samples in a profile one by one with
the new "Samples" view. The "old" main view moves into a "Call Tree"
tab (but it remains the default view.)

When you select a sample in the samples view, we show you the full
symbolicated backtrace in a separate view on the right hand side. :^)
2021-02-27 18:34:21 +01:00

95 lines
3 KiB
C++

/*
* Copyright (c) 2018-2021, 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 "SamplesModel.h"
#include "Profile.h"
#include <AK/StringBuilder.h>
#include <stdio.h>
SamplesModel::SamplesModel(Profile& profile)
: m_profile(profile)
{
m_user_frame_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
m_kernel_frame_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/inspector-object-red.png"));
}
SamplesModel::~SamplesModel()
{
}
int SamplesModel::row_count(const GUI::ModelIndex&) const
{
return m_profile.filtered_event_count();
}
int SamplesModel::column_count(const GUI::ModelIndex&) const
{
return Column::__Count;
}
String SamplesModel::column_name(int column) const
{
switch (column) {
case Column::SampleIndex:
return "#";
case Column::Timestamp:
return "Timestamp";
case Column::InnermostStackFrame:
return "Innermost Frame";
default:
VERIFY_NOT_REACHED();
}
}
GUI::Variant SamplesModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
{
u32 event_index = m_profile.first_filtered_event_index() + index.row();
auto& event = m_profile.events().at(event_index);
if (role == GUI::ModelRole::Custom) {
return event_index;
}
if (role == GUI::ModelRole::Display) {
if (index.column() == Column::SampleIndex)
return event_index;
if (index.column() == Column::Timestamp) {
return (u32)event.timestamp;
}
if (index.column() == Column::InnermostStackFrame) {
return event.frames.last().symbol;
}
return {};
}
return {};
}
void SamplesModel::update()
{
did_update(Model::InvalidateAllIndexes);
}