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#include "ProcessStateWidget.h"
#include <LibCore/CProcessStatisticsReader.h>
#include <LibCore/CTimer.h>
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GLabel.h>
#include <unistd.h>
ProcessStateWidget::ProcessStateWidget(GWidget* parent)
: GWidget(parent)
{
set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
set_preferred_size(0, 20);
set_visible(false);
set_layout(make<GBoxLayout>(Orientation::Horizontal));
auto pid_label_label = GLabel::construct("Process:", this);
pid_label_label->set_font(Font::default_bold_font());
m_pid_label = GLabel::construct("", this);
auto state_label_label = GLabel::construct("State:", this);
state_label_label->set_font(Font::default_bold_font());
m_state_label = GLabel::construct("", this);
// FIXME: This should show CPU% instead.
auto cpu_label_label = GLabel::construct("Times scheduled:", this);
cpu_label_label->set_font(Font::default_bold_font());
m_cpu_label = GLabel::construct("", this);
auto memory_label_label = GLabel::construct("Memory (resident):", this);
memory_label_label->set_font(Font::default_bold_font());
m_memory_label = GLabel::construct("", this);
m_timer = CTimer::construct(500, [this] {
refresh();
});
}
ProcessStateWidget::~ProcessStateWidget()
{
}
void ProcessStateWidget::refresh()
{
pid_t pid = tcgetpgrp(m_tty_fd);
auto processes = CProcessStatisticsReader::get_all();
auto child_process_data = processes.get(pid);
if (!child_process_data.has_value())
return;
auto active_process_data = processes.get(child_process_data.value().pgid);
auto& data = active_process_data.value();
m_pid_label->set_text(String::format("%s(%d)", data.name.characters(), pid));
m_state_label->set_text(data.state);
m_cpu_label->set_text(String::format("%d", data.times_scheduled));
m_memory_label->set_text(String::format("%d", data.amount_resident));
}
void ProcessStateWidget::set_tty_fd(int tty_fd)
{
m_tty_fd = tty_fd;
if (m_tty_fd == -1) {
set_visible(false);
return;
}
set_visible(true);
refresh();
}
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