mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 02:47:35 +00:00
ProcessManager: Show some basic system memory stats below the process table.
This really improves the feeling of "system overview" :^)
This commit is contained in:
parent
8017c1e17c
commit
37388b311f
9 changed files with 158 additions and 9 deletions
|
@ -1,6 +1,7 @@
|
|||
OBJS = \
|
||||
ProcessTableModel.o \
|
||||
ProcessTableView.o \
|
||||
MemoryStatsWidget.o \
|
||||
main.o
|
||||
|
||||
APP = ProcessManager
|
||||
|
|
101
Applications/ProcessManager/MemoryStatsWidget.cpp
Normal file
101
Applications/ProcessManager/MemoryStatsWidget.cpp
Normal file
|
@ -0,0 +1,101 @@
|
|||
#include "MemoryStatsWidget.h"
|
||||
#include <SharedGraphics/Painter.h>
|
||||
#include <LibGUI/GBoxLayout.h>
|
||||
#include <LibGUI/GLabel.h>
|
||||
#include <LibGUI/GStyle.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
MemoryStatsWidget::MemoryStatsWidget(GWidget* parent)
|
||||
: GWidget(parent)
|
||||
{
|
||||
set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
|
||||
set_preferred_size({ 0, 60 });
|
||||
|
||||
set_layout(make<GBoxLayout>(Orientation::Vertical));
|
||||
layout()->set_margins({ 0, 8, 0, 0 });
|
||||
layout()->set_spacing(3);
|
||||
|
||||
m_user_physical_pages_label = new GLabel(this);
|
||||
m_user_physical_pages_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
|
||||
m_user_physical_pages_label->set_preferred_size({ 0, 12 });
|
||||
m_user_physical_pages_label->set_fill_with_background_color(false);
|
||||
m_supervisor_physical_pages_label = new GLabel(this);
|
||||
m_supervisor_physical_pages_label->set_fill_with_background_color(false);
|
||||
m_supervisor_physical_pages_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
|
||||
m_supervisor_physical_pages_label->set_preferred_size({ 0, 12 });
|
||||
m_kmalloc_label = new GLabel(this);
|
||||
m_kmalloc_label->set_fill_with_background_color(false);
|
||||
m_kmalloc_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
|
||||
m_kmalloc_label->set_preferred_size({ 0, 12 });
|
||||
|
||||
start_timer(1000);
|
||||
refresh();
|
||||
}
|
||||
|
||||
MemoryStatsWidget::~MemoryStatsWidget()
|
||||
{
|
||||
}
|
||||
|
||||
static inline size_t page_count_to_kb(size_t kb)
|
||||
{
|
||||
return (kb * 4096) / 1024;
|
||||
}
|
||||
|
||||
static inline size_t bytes_to_kb(size_t bytes)
|
||||
{
|
||||
return bytes / 1024;
|
||||
}
|
||||
|
||||
void MemoryStatsWidget::refresh()
|
||||
{
|
||||
FILE* fp = fopen("/proc/memstat", "r");
|
||||
if (!fp) {
|
||||
perror("failed to open /proc/memstat");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
for (;;) {
|
||||
char buf[BUFSIZ];
|
||||
char* ptr = fgets(buf, sizeof(buf), fp);
|
||||
if (!ptr)
|
||||
break;
|
||||
auto parts = String(buf, Chomp).split(',');
|
||||
if (parts.size() < 7)
|
||||
break;
|
||||
bool ok;
|
||||
unsigned kmalloc_sum_eternal = parts[0].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
unsigned kmalloc_sum_alloc = parts[1].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
unsigned kmalloc_sum_free = parts[2].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
unsigned user_pages_alloc = parts[3].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
unsigned user_pages_free = parts[4].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
unsigned supervisor_pages_alloc = parts[5].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
unsigned supervisor_pages_free = parts[6].to_uint(ok);
|
||||
ASSERT(ok);
|
||||
|
||||
m_kmalloc_label->set_text(String::format("Kernel heap: %uK allocated, %uK free\n", bytes_to_kb(kmalloc_sum_alloc), bytes_to_kb(kmalloc_sum_free)));
|
||||
m_user_physical_pages_label->set_text(String::format("Userspace physical: %uK allocated, %uK free\n", page_count_to_kb(user_pages_alloc), page_count_to_kb(user_pages_free)));
|
||||
m_supervisor_physical_pages_label->set_text(String::format("Supervisor physical: %uK allocated, %uK free\n", page_count_to_kb(supervisor_pages_alloc), page_count_to_kb(supervisor_pages_free)));
|
||||
break;
|
||||
}
|
||||
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
void MemoryStatsWidget::timer_event(GTimerEvent&)
|
||||
{
|
||||
refresh();
|
||||
}
|
||||
|
||||
void MemoryStatsWidget::paint_event(GPaintEvent& event)
|
||||
{
|
||||
Painter painter(*this);
|
||||
painter.set_clip_rect(event.rect());
|
||||
GStyle::the().paint_surface(painter, rect());
|
||||
}
|
21
Applications/ProcessManager/MemoryStatsWidget.h
Normal file
21
Applications/ProcessManager/MemoryStatsWidget.h
Normal file
|
@ -0,0 +1,21 @@
|
|||
#pragma once
|
||||
|
||||
#include <LibGUI/GWidget.h>
|
||||
|
||||
class GLabel;
|
||||
|
||||
class MemoryStatsWidget final : public GWidget {
|
||||
public:
|
||||
explicit MemoryStatsWidget(GWidget* parent);
|
||||
virtual ~MemoryStatsWidget() override;
|
||||
|
||||
void refresh();
|
||||
|
||||
private:
|
||||
virtual void timer_event(GTimerEvent&) override;
|
||||
virtual void paint_event(GPaintEvent&) override;
|
||||
|
||||
GLabel* m_user_physical_pages_label { nullptr };
|
||||
GLabel* m_supervisor_physical_pages_label { nullptr };
|
||||
GLabel* m_kmalloc_label { nullptr };
|
||||
};
|
|
@ -24,8 +24,7 @@ void ProcessTableView::timer_event(GTimerEvent&)
|
|||
void ProcessTableView::model_notification(const GModelNotification& notification)
|
||||
{
|
||||
if (notification.type() == GModelNotification::ModelUpdated) {
|
||||
if (on_status_message)
|
||||
on_status_message(String::format("%d processes", model()->row_count()));
|
||||
// Do something?
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
|
|
@ -13,8 +13,6 @@ public:
|
|||
|
||||
pid_t selected_pid() const;
|
||||
|
||||
Function<void(String)> on_status_message;
|
||||
|
||||
protected:
|
||||
virtual void model_notification(const GModelNotification&) override;
|
||||
|
||||
|
|
|
@ -2,7 +2,6 @@
|
|||
#include <LibGUI/GWidget.h>
|
||||
#include <LibGUI/GBoxLayout.h>
|
||||
#include <LibGUI/GApplication.h>
|
||||
#include <LibGUI/GStatusBar.h>
|
||||
#include <LibGUI/GToolBar.h>
|
||||
#include <LibGUI/GMenuBar.h>
|
||||
#include <LibGUI/GAction.h>
|
||||
|
@ -10,6 +9,7 @@
|
|||
#include <stdio.h>
|
||||
#include <signal.h>
|
||||
#include "ProcessTableView.h"
|
||||
#include "MemoryStatsWidget.h"
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
|
@ -21,10 +21,8 @@ int main(int argc, char** argv)
|
|||
|
||||
auto* toolbar = new GToolBar(widget);
|
||||
auto* process_table_view = new ProcessTableView(widget);
|
||||
auto* statusbar = new GStatusBar(widget);
|
||||
process_table_view->on_status_message = [statusbar] (String message) {
|
||||
statusbar->set_text(move(message));
|
||||
};
|
||||
|
||||
new MemoryStatsWidget(widget);
|
||||
|
||||
auto kill_action = GAction::create("Kill process", GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, "/res/icons/kill16.rgb", { 16, 16 }), [process_table_view] (const GAction&) {
|
||||
pid_t pid = process_table_view->selected_pid();
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue