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bced810880
This is the closest I could figure out how to get to what's actively running on the terminal view at the moment. Perhaps we can bundle up every process with the same tty and sum it all up somehow. I'm not sure.
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
#include "ProcessStateWidget.h"
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#include <LibCore/CProcessStatisticsReader.h>
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#include <LibCore/CTimer.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GLabel.h>
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#include <unistd.h>
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ProcessStateWidget::ProcessStateWidget(GWidget* parent)
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: GWidget(parent)
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{
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set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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set_preferred_size(0, 20);
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set_layout(make<GBoxLayout>(Orientation::Horizontal));
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auto pid_label_label = GLabel::construct("Process:", this);
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pid_label_label->set_font(Font::default_bold_font());
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m_pid_label = GLabel::construct("", this);
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auto state_label_label = GLabel::construct("State:", this);
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state_label_label->set_font(Font::default_bold_font());
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m_state_label = GLabel::construct("", this);
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// FIXME: This should show CPU% instead.
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auto cpu_label_label = GLabel::construct("Times scheduled:", this);
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cpu_label_label->set_font(Font::default_bold_font());
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m_cpu_label = GLabel::construct("", this);
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auto memory_label_label = GLabel::construct("Memory (resident):", this);
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memory_label_label->set_font(Font::default_bold_font());
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m_memory_label = GLabel::construct("", this);
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m_timer = CTimer::construct(500, [this] {
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refresh();
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});
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}
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ProcessStateWidget::~ProcessStateWidget()
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{
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}
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void ProcessStateWidget::refresh()
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{
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if (m_tty_fd == -1) {
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m_pid_label->set_text("(none)");
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m_state_label->set_text("n/a");
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m_cpu_label->set_text("n/a");
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m_memory_label->set_text("n/a");
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return;
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}
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pid_t pid = tcgetpgrp(m_tty_fd);
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auto processes = CProcessStatisticsReader::get_all();
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auto child_process_data = processes.get(pid);
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if (!child_process_data.has_value())
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return;
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auto active_process_data = processes.get(child_process_data.value().pgid);
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auto& data = active_process_data.value();
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m_pid_label->set_text(String::format("%s(%d)", data.name.characters(), pid));
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m_state_label->set_text(data.state);
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m_cpu_label->set_text(String::format("%d", data.times_scheduled));
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m_memory_label->set_text(String::format("%d", data.amount_resident));
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}
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void ProcessStateWidget::set_tty_fd(int tty_fd)
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{
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m_tty_fd = tty_fd;
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refresh();
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}
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