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-rw-r--r--MenuApplets/ResourceGraph/main.cpp292
1 files changed, 0 insertions, 292 deletions
diff --git a/MenuApplets/ResourceGraph/main.cpp b/MenuApplets/ResourceGraph/main.cpp
deleted file mode 100644
index 6ca8157ffa..0000000000
--- a/MenuApplets/ResourceGraph/main.cpp
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <AK/ByteBuffer.h>
-#include <AK/CircularQueue.h>
-#include <AK/JsonObject.h>
-#include <LibCore/ArgsParser.h>
-#include <LibCore/File.h>
-#include <LibCore/ProcessStatisticsReader.h>
-#include <LibGUI/Application.h>
-#include <LibGUI/Frame.h>
-#include <LibGUI/Painter.h>
-#include <LibGUI/Window.h>
-#include <LibGfx/Palette.h>
-#include <serenity.h>
-#include <spawn.h>
-#include <stdio.h>
-
-enum class GraphType {
- CPU,
- Memory,
-};
-
-class GraphWidget final : public GUI::Frame {
- C_OBJECT(GraphWidget);
-
-public:
- static constexpr size_t history_size = 30;
-
- GraphWidget(GraphType graph_type, Optional<Gfx::Color> graph_color, Optional<Gfx::Color> graph_error_color)
- : m_graph_type(graph_type)
- {
- set_frame_thickness(1);
- m_graph_color = graph_color.value_or(palette().menu_selection());
- m_graph_error_color = graph_error_color.value_or(Color::Red);
- start_timer(1000);
- }
-
-private:
- virtual void timer_event(Core::TimerEvent&) override
- {
- switch (m_graph_type) {
- case GraphType::CPU: {
- unsigned busy;
- unsigned idle;
- if (get_cpu_usage(busy, idle)) {
- unsigned busy_diff = busy - m_last_cpu_busy;
- unsigned idle_diff = idle - m_last_cpu_idle;
- m_last_cpu_busy = busy;
- m_last_cpu_idle = idle;
- float cpu = (float)busy_diff / (float)(busy_diff + idle_diff);
- m_history.enqueue(cpu);
- m_tooltip = String::format("CPU usage: %.1f%%", 100 * cpu);
- } else {
- m_history.enqueue(-1);
- m_tooltip = StringView("Unable to determine CPU usage");
- }
- break;
- }
- case GraphType::Memory: {
- u64 allocated, available;
- if (get_memory_usage(allocated, available)) {
- double total_memory = allocated + available;
- double memory = (double)allocated / total_memory;
- m_history.enqueue(memory);
- m_tooltip = String::format("Memory: %.1f MiB of %.1f MiB in use", (float)(allocated / MiB), (float)(total_memory / MiB));
- } else {
- m_history.enqueue(-1);
- m_tooltip = StringView("Unable to determine memory usage");
- }
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- }
- set_tooltip(m_tooltip);
- update();
- }
-
- virtual void paint_event(GUI::PaintEvent& event) override
- {
- GUI::Frame::paint_event(event);
- GUI::Painter painter(*this);
- painter.add_clip_rect(event.rect());
- painter.add_clip_rect(frame_inner_rect());
- painter.fill_rect(event.rect(), Color::Black);
- int i = m_history.capacity() - m_history.size();
- auto rect = frame_inner_rect();
- for (auto value : m_history) {
- if (value >= 0) {
- painter.draw_line(
- { rect.x() + i, rect.bottom() },
- { rect.x() + i, rect.top() + (int)(round(rect.height() - (value * rect.height()))) },
- m_graph_color);
- } else {
- painter.draw_line(
- { rect.x() + i, rect.top() },
- { rect.x() + i, rect.bottom() },
- m_graph_error_color);
- }
- ++i;
- }
- }
-
- virtual void mousedown_event(GUI::MouseEvent& event) override
- {
- if (event.button() != GUI::MouseButton::Left)
- return;
- pid_t child_pid;
- const char* argv[] = { "SystemMonitor", "-t", "graphs", nullptr };
- if ((errno = posix_spawn(&child_pid, "/bin/SystemMonitor", nullptr, nullptr, const_cast<char**>(argv), environ))) {
- perror("posix_spawn");
- } else {
- if (disown(child_pid) < 0)
- perror("disown");
- }
- }
-
- bool get_cpu_usage(unsigned& busy, unsigned& idle)
- {
- busy = 0;
- idle = 0;
-
- auto all_processes = Core::ProcessStatisticsReader::get_all(m_proc_all);
- if (!all_processes.has_value() || all_processes.value().is_empty())
- return false;
-
- for (auto& it : all_processes.value()) {
- for (auto& jt : it.value.threads) {
- if (it.value.pid == 0)
- idle += jt.ticks_user + jt.ticks_kernel;
- else
- busy += jt.ticks_user + jt.ticks_kernel;
- }
- }
- return true;
- }
-
- bool get_memory_usage(u64& allocated, u64& available)
- {
- if (m_proc_mem) {
- // Seeking to the beginning causes a data refresh!
- if (!m_proc_mem->seek(0, Core::File::SeekMode::SetPosition))
- return false;
- } else {
- auto proc_memstat = Core::File::construct("/proc/memstat");
- if (!proc_memstat->open(Core::IODevice::OpenMode::ReadOnly))
- return false;
- m_proc_mem = move(proc_memstat);
- }
-
- auto file_contents = m_proc_mem->read_all();
- auto json = JsonValue::from_string(file_contents);
- ASSERT(json.has_value());
- auto& obj = json.value().as_object();
- unsigned kmalloc_allocated = obj.get("kmalloc_allocated").to_u32();
- unsigned kmalloc_available = obj.get("kmalloc_available").to_u32();
- unsigned user_physical_allocated = obj.get("user_physical_allocated").to_u32();
- unsigned user_physical_committed = obj.get("user_physical_committed").to_u32();
- unsigned user_physical_uncommitted = obj.get("user_physical_uncommitted").to_u32();
- unsigned kmalloc_bytes_total = kmalloc_allocated + kmalloc_available;
- unsigned kmalloc_pages_total = (kmalloc_bytes_total + PAGE_SIZE - 1) / PAGE_SIZE;
- unsigned total_userphysical_and_swappable_pages = kmalloc_pages_total + user_physical_allocated + user_physical_committed + user_physical_uncommitted;
- allocated = kmalloc_allocated + ((u64)(user_physical_allocated + user_physical_committed) * PAGE_SIZE);
- available = (u64)(total_userphysical_and_swappable_pages * PAGE_SIZE) - allocated;
- return true;
- }
-
- GraphType m_graph_type;
- Gfx::Color m_graph_color;
- Gfx::Color m_graph_error_color;
- CircularQueue<float, history_size> m_history;
- unsigned m_last_cpu_busy { 0 };
- unsigned m_last_cpu_idle { 0 };
- String m_tooltip;
- RefPtr<Core::File> m_proc_all;
- RefPtr<Core::File> m_proc_mem;
-};
-
-int main(int argc, char** argv)
-{
- if (pledge("stdio shared_buffer accept proc exec rpath unix cpath fattr", nullptr) < 0) {
- perror("pledge");
- return 1;
- }
-
- auto app = GUI::Application::construct(argc, argv);
-
- if (pledge("stdio shared_buffer accept proc exec rpath", nullptr) < 0) {
- perror("pledge");
- return 1;
- }
-
- bool cpu = false;
- bool memory = false;
- const char* name = nullptr;
- const char* color = nullptr;
- const char* error_color = nullptr;
- Core::ArgsParser args_parser;
- args_parser.add_option(cpu, "Show CPU usage", "cpu", 'C');
- args_parser.add_option(memory, "Show memory usage", "memory", 'M');
- args_parser.add_option(name, "Applet name used by WindowServer.ini to set the applet order", "name", 'n', "name");
- args_parser.add_option(color, "Graph color", "color", 'c', "color");
- args_parser.add_option(error_color, "Graph color (error)", "error-color", 'e', "error-color");
- args_parser.parse(argc, argv);
-
- if (!cpu && !memory) {
- printf("Either --cpu or --memory option must be used");
- return 1;
- }
- if (cpu && memory) {
- printf("--cpu and --memory options must not be used together");
- return 1;
- }
- GraphType graph_type;
- if (cpu)
- graph_type = GraphType::CPU;
- if (memory)
- graph_type = GraphType::Memory;
-
- if (name == nullptr)
- name = "ResourceGraph";
-
- Optional<Gfx::Color> graph_color, graph_error_color;
- if (color != nullptr)
- graph_color = Gfx::Color::from_string(color);
- if (error_color != nullptr)
- graph_error_color = Gfx::Color::from_string(error_color);
-
- auto window = GUI::Window::construct();
- window->set_title(name);
- window->set_window_type(GUI::WindowType::MenuApplet);
- window->resize(GraphWidget::history_size + 2, 16);
-
- window->set_main_widget<GraphWidget>(graph_type, graph_color, graph_error_color);
- window->show();
-
- if (unveil("/res", "r") < 0) {
- perror("unveil");
- return 1;
- }
-
- // FIXME: This is required by Core::ProcessStatisticsReader.
- // It would be good if we didn't depend on that.
- if (unveil("/etc/passwd", "r") < 0) {
- perror("unveil");
- return 1;
- }
-
- if (unveil("/proc/all", "r") < 0) {
- perror("unveil");
- return 1;
- }
-
- if (unveil("/proc/memstat", "r") < 0) {
- perror("unveil");
- return 1;
- }
-
- if (unveil("/bin/SystemMonitor", "x") < 0) {
- perror("unveil");
- return 1;
- }
-
- unveil(nullptr, nullptr);
-
- return app->exec();
-}
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