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cebf8ae3b7
This is a follow-up to #3095. In particular: https://github.com/SerenityOS/serenity/pull/3095#discussion_r469113354
69 lines
2.4 KiB
C++
69 lines
2.4 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 "ThreadStackWidget.h"
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#include <AK/ByteBuffer.h>
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#include <LibCore/File.h>
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#include <LibCore/Timer.h>
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#include <LibGUI/BoxLayout.h>
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ThreadStackWidget::ThreadStackWidget()
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{
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set_layout<GUI::VerticalBoxLayout>();
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layout()->set_margins({ 4, 4, 4, 4 });
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m_stack_editor = add<GUI::TextEditor>();
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m_stack_editor->set_mode(GUI::TextEditor::ReadOnly);
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m_timer = add<Core::Timer>(1000, [this] { refresh(); });
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}
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ThreadStackWidget::~ThreadStackWidget()
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{
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}
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void ThreadStackWidget::set_ids(pid_t pid, pid_t tid)
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{
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if (m_pid == pid && m_tid == tid)
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return;
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m_pid = pid;
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m_tid = tid;
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refresh();
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}
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void ThreadStackWidget::refresh()
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{
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auto file = Core::File::construct(String::format("/proc/%d/stacks/%d", m_pid, m_tid));
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if (!file->open(Core::IODevice::ReadOnly)) {
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m_stack_editor->set_text(String::format("Unable to open %s", file->filename().characters()));
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return;
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}
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auto new_text = file->read_all();
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if (m_stack_editor->text() != new_text) {
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m_stack_editor->set_text(new_text);
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}
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}
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