ladybird/Applications/SystemMonitor/ProcessStacksWidget.cpp
2019-09-21 20:50:06 +02:00

38 lines
1,000 B
C++

#include "ProcessStacksWidget.h"
#include <LibCore/CFile.h>
#include <LibCore/CTimer.h>
#include <LibGUI/GBoxLayout.h>
ProcessStacksWidget::ProcessStacksWidget(GWidget* parent)
: GWidget(parent)
{
set_layout(make<GBoxLayout>(Orientation::Vertical));
layout()->set_margins({ 4, 4, 4, 4 });
m_stacks_editor = GTextEditor::construct(GTextEditor::Type::MultiLine, this);
m_stacks_editor->set_readonly(true);
m_timer = CTimer::construct(1000, [this] { refresh(); }, this);
}
ProcessStacksWidget::~ProcessStacksWidget()
{
}
void ProcessStacksWidget::set_pid(pid_t pid)
{
if (m_pid == pid)
return;
m_pid = pid;
refresh();
}
void ProcessStacksWidget::refresh()
{
auto file = CFile::construct(String::format("/proc/%d/stack", m_pid));
if (!file->open(CIODevice::ReadOnly)) {
m_stacks_editor->set_text(String::format("Unable to open %s", file->filename().characters()));
return;
}
m_stacks_editor->set_text(file->read_all());
}