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SystemMonitor: Register MemoryStatsWidget

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This also requires that the associated graph widget may be null.
This commit is contained in:
kleines Filmröllchen 2022-03-19 00:19:56 +01:00 committed by Andreas Kling
parent abf2ed4c52
commit abfddd01d4
Notes: sideshowbarker 2024-07-17 20:33:50 +09:00 
Author: https://github.com/kleinesfilmroellchen
Commit: https://github.com/SerenityOS/serenity/commit/abfddd01d4
Pull-request: https://github.com/SerenityOS/serenity/pull/13125
3 changed files with 31 additions and 8 deletions
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24
Userland/Applications/SystemMonitor/MemoryStatsWidget.cpp
View file

@ -17,6 +17,10 @@
#include <LibGfx/StylePainter.h>
#include <stdlib.h>
REGISTER_WIDGET(SystemMonitor, MemoryStatsWidget)
namespace SystemMonitor {
static MemoryStatsWidget* s_the;
MemoryStatsWidget* MemoryStatsWidget::the()
@ -24,7 +28,12 @@ MemoryStatsWidget* MemoryStatsWidget::the()
return s_the;
}
MemoryStatsWidget::MemoryStatsWidget(SystemMonitor::GraphWidget& graph)
MemoryStatsWidget::MemoryStatsWidget()
: MemoryStatsWidget(nullptr)
{
}
MemoryStatsWidget::MemoryStatsWidget(GraphWidget* graph)
: m_graph(graph)
{
VERIFY(!s_the);
@ -59,6 +68,11 @@ MemoryStatsWidget::MemoryStatsWidget(SystemMonitor::GraphWidget& graph)
refresh();
}
void MemoryStatsWidget::set_graph_widget(GraphWidget& graph)
{
m_graph = &graph;
}
static inline u64 page_count_to_bytes(size_t count)
{
return count * 4096;
@ -101,6 +115,10 @@ void MemoryStatsWidget::refresh()
m_kfree_count_label->set_text(String::formatted("{}", kfree_call_count));
m_kmalloc_difference_label->set_text(String::formatted("{:+}", kmalloc_call_count - kfree_call_count));
m_graph.set_max(page_count_to_bytes(total_userphysical_and_swappable_pages) + kmalloc_bytes_total);
m_graph.add_value({ page_count_to_bytes(user_physical_committed), page_count_to_bytes(user_physical_allocated), kmalloc_bytes_total });
if (m_graph) {
m_graph->set_max(page_count_to_bytes(total_userphysical_and_swappable_pages) + kmalloc_bytes_total);
m_graph->add_value({ page_count_to_bytes(user_physical_committed), page_count_to_bytes(user_physical_allocated), kmalloc_bytes_total });
}
}
}

11
Userland/Applications/SystemMonitor/MemoryStatsWidget.h
View file

@ -10,8 +10,8 @@
#include <LibGUI/Widget.h>
namespace SystemMonitor {
class GraphWidget;
}
class MemoryStatsWidget final : public GUI::Widget {
C_OBJECT(MemoryStatsWidget)
@ -20,12 +20,15 @@ public:
virtual ~MemoryStatsWidget() override = default;
void set_graph_widget(GraphWidget& graph);
void refresh();
private:
MemoryStatsWidget(SystemMonitor::GraphWidget& graph);
MemoryStatsWidget(GraphWidget* graph);
MemoryStatsWidget();
SystemMonitor::GraphWidget& m_graph;
GraphWidget* m_graph;
RefPtr<GUI::Label> m_user_physical_pages_label;
RefPtr<GUI::Label> m_user_physical_pages_committed_label;
RefPtr<GUI::Label> m_supervisor_physical_pages_label;
@ -34,3 +37,5 @@ private:
RefPtr<GUI::Label> m_kfree_count_label;
RefPtr<GUI::Label> m_kmalloc_difference_label;
};
}

4
Userland/Applications/SystemMonitor/main.cpp
View file

@ -212,7 +212,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto& refresh_timer = window->add<Core::Timer>(
frequency * 1000, [&] {
process_model->update();
if (auto* memory_stats_widget = MemoryStatsWidget::the())
if (auto* memory_stats_widget = SystemMonitor::MemoryStatsWidget::the())
memory_stats_widget->refresh();
});
@ -746,6 +746,6 @@ NonnullRefPtr<GUI::Widget> build_performance_tab()
},
});
graphs_container->add<MemoryStatsWidget>(memory_graph);
graphs_container->add<SystemMonitor::MemoryStatsWidget>(&memory_graph);
return graphs_container;
}