mirror of
https://github.com/RGBCube/serenity
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102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "ProcessStateWidget.h"
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#include <LibCore/ProcessStatisticsReader.h>
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#include <LibCore/Timer.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Label.h>
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#include <LibGfx/Font.h>
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#include <unistd.h>
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namespace HackStudio {
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ProcessStateWidget::ProcessStateWidget()
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{
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set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
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set_preferred_size(0, 20);
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set_visible(false);
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set_layout<GUI::HorizontalBoxLayout>();
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auto& pid_label_label = add<GUI::Label>("Process:");
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pid_label_label.set_font(Gfx::Font::default_bold_font());
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m_pid_label = add<GUI::Label>("");
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auto& state_label_label = add<GUI::Label>("State:");
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state_label_label.set_font(Gfx::Font::default_bold_font());
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m_state_label = add<GUI::Label>("");
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// FIXME: This should show CPU% instead.
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auto& cpu_label_label = add<GUI::Label>("Times scheduled:");
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cpu_label_label.set_font(Gfx::Font::default_bold_font());
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m_cpu_label = add<GUI::Label>("");
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auto& memory_label_label = add<GUI::Label>("Memory (resident):");
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memory_label_label.set_font(Gfx::Font::default_bold_font());
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m_memory_label = add<GUI::Label>("");
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m_timer = add<Core::Timer>(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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pid_t pid = tcgetpgrp(m_tty_fd);
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auto processes = Core::ProcessStatisticsReader::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.threads.first().state);
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m_cpu_label->set_text(String::format("%d", data.threads.first().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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if (m_tty_fd == -1) {
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set_visible(false);
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return;
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}
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set_visible(true);
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refresh();
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}
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}
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