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https://github.com/RGBCube/serenity
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Dirty private memory is all memory in non-inode-backed mappings that's process-private, meaning it's not shared with any other process. This patch exposes that number via SystemMonitor, giving us an idea of how much memory each process is responsible for all on its own.
69 lines
2.6 KiB
C++
69 lines
2.6 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("amount_dirty", "Dirty", 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("user_accessible").to_bool())
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builder.append('K');
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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("executable").to_bool())
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builder.append('X');
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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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