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3fbc50a350
This number tells us how many more pages in a given region will trigger a CoW fault if written to.
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
#include "ProcessMemoryMapWidget.h"
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#include <LibCore/CTimer.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GJsonArrayModel.h>
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#include <LibGUI/GSortingProxyModel.h>
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#include <LibGUI/GTableView.h>
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ProcessMemoryMapWidget::ProcessMemoryMapWidget(GWidget* parent)
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: GWidget(parent)
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{
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set_layout(make<GBoxLayout>(Orientation::Vertical));
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layout()->set_margins({ 4, 4, 4, 4 });
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m_table_view = GTableView::construct(this);
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m_table_view->set_size_columns_to_fit_content(true);
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Vector<GJsonArrayModel::FieldSpec> pid_vm_fields;
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pid_vm_fields.empend("Address", TextAlignment::CenterLeft, [](auto& object) {
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return String::format("%#x", object.get("address").to_u32());
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});
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pid_vm_fields.empend("size", "Size", TextAlignment::CenterRight);
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pid_vm_fields.empend("amount_resident", "Resident", TextAlignment::CenterRight);
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pid_vm_fields.empend("Access", TextAlignment::CenterLeft, [](auto& object) {
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StringBuilder builder;
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if (object.get("readable").to_bool())
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builder.append('R');
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if (object.get("writable").to_bool())
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builder.append('W');
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if (object.get("shared").to_bool())
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builder.append('S');
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if (object.get("stack").to_bool())
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builder.append('T');
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return builder.to_string();
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});
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pid_vm_fields.empend("Purgeable", TextAlignment::CenterLeft, [](auto& object) {
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if (!object.get("purgeable").to_bool())
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return "";
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if (object.get("volatile").to_bool())
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return "Volatile";
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return "Non-volatile";
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});
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pid_vm_fields.empend("cow_pages", "# CoW", TextAlignment::CenterRight);
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pid_vm_fields.empend("name", "Name", TextAlignment::CenterLeft);
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m_json_model = GJsonArrayModel::create({}, move(pid_vm_fields));
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m_table_view->set_model(GSortingProxyModel::create(*m_json_model));
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m_table_view->model()->set_key_column_and_sort_order(0, GSortOrder::Ascending);
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m_timer = CTimer::construct(1000, [this] { refresh(); }, this);
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}
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ProcessMemoryMapWidget::~ProcessMemoryMapWidget()
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{
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}
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void ProcessMemoryMapWidget::set_pid(pid_t pid)
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{
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if (m_pid == pid)
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return;
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m_pid = pid;
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m_json_model->set_json_path(String::format("/proc/%d/vm", pid));
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}
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void ProcessMemoryMapWidget::refresh()
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{
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if (m_pid != -1)
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m_json_model->update();
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}
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