LibCore: Put all classes in the Core namespace and remove the leading C

I've been wanting to do this for a long time. It's time we start being
consistent about how this stuff works.

The new convention is:

- "LibFoo" is a userspace library that provides the "Foo" namespace.

That's it :^) This was pretty tedious to convert and I didn't even
start on LibGUI yet. But it's coming up next.

Applications/ChanViewer/BoardListModel.cpp

@@ -44,7 +44,7 @@ BoardListModel::~BoardListModel()
 
 void BoardListModel::update()
 {
-    CHttpRequest request;
+    Core::HttpRequest request;
     request.set_url("http://a.4cdn.org/boards.json");
 
     if (m_pending_job)

Applications/ChanViewer/BoardListModel.h

@@ -51,5 +51,5 @@ private:
     BoardListModel();
 
     JsonArray m_boards;
-    RefPtr<CHttpJob> m_pending_job;
+    RefPtr<Core::HttpJob> m_pending_job;
 };

Applications/ChanViewer/ThreadCatalogModel.cpp

@@ -52,7 +52,7 @@ void ThreadCatalogModel::set_board(const String& board)
 
 void ThreadCatalogModel::update()
 {
-    CHttpRequest request;
+    Core::HttpRequest request;
     request.set_url(String::format("http://a.4cdn.org/%s/catalog.json", m_board.characters()));
 
     if (m_pending_job)

Applications/ChanViewer/ThreadCatalogModel.h

@@ -63,5 +63,5 @@ private:
 
     String m_board { "g" };
     JsonArray m_catalog;
-    RefPtr<CHttpJob> m_pending_job;
+    RefPtr<Core::HttpJob> m_pending_job;
 };

Applications/DisplayProperties/DisplayProperties.cpp

@@ -48,7 +48,7 @@
 #include <Servers/WindowServer/WSWindowManager.h>
 
 DisplayPropertiesWidget::DisplayPropertiesWidget()
-    : m_wm_config(CConfigFile::get_for_app("WindowManager"))
+    : m_wm_config(Core::ConfigFile::get_for_app("WindowManager"))
 {
     create_resolution_list();
     create_wallpaper_list();
@@ -114,7 +114,7 @@ void DisplayPropertiesWidget::create_wallpaper_list()
         m_selected_wallpaper = name_parts[2];
     }
 
-    CDirIterator iterator("/res/wallpapers/", CDirIterator::Flags::SkipDots);
+    Core::DirIterator iterator("/res/wallpapers/", Core::DirIterator::Flags::SkipDots);
 
     while (iterator.has_next()) {
         m_wallpapers.append(iterator.next_path());

Applications/DisplayProperties/DisplayProperties.h

@@ -65,7 +65,7 @@ private:
 
 private:
     String m_wallpaper_path;
-    RefPtr<CConfigFile> m_wm_config;
+    RefPtr<Core::ConfigFile> m_wm_config;
     RefPtr<GWidget> m_root_widget;
     Vector<Size> m_resolutions;
     Vector<String> m_wallpapers;

Applications/FileManager/FileUtils.cpp

@@ -37,7 +37,7 @@ namespace FileUtils {
 
 int delete_directory(String directory, String& file_that_caused_error)
 {
-    CDirIterator iterator(directory, CDirIterator::SkipDots);
+    Core::DirIterator iterator(directory, Core::DirIterator::SkipDots);
     if (iterator.has_error()) {
         file_that_caused_error = directory;
         return -1;
@@ -104,7 +104,7 @@ bool copy_directory(const String& src_path, const String& dst_path)
     if (rc < 0) {
         return false;
     }
-    CDirIterator di(src_path, CDirIterator::SkipDots);
+    Core::DirIterator di(src_path, Core::DirIterator::SkipDots);
     if (di.has_error()) {
         return false;
     }

Applications/FileManager/PropertiesDialog.cpp

@@ -35,7 +35,7 @@
 #include <stdio.h>
 #include <unistd.h>
 
-PropertiesDialog::PropertiesDialog(GFileSystemModel& model, String path, bool disable_rename, CObject* parent)
+PropertiesDialog::PropertiesDialog(GFileSystemModel& model, String path, bool disable_rename, Core::Object* parent)
     : GDialog(parent)
     , m_model(model)
 {

Applications/FileManager/PropertiesDialog.h

@@ -40,7 +40,7 @@ public:
     virtual ~PropertiesDialog() override;
 
 private:
-    PropertiesDialog(GFileSystemModel&, String, bool disable_rename, CObject* parent = nullptr);
+    PropertiesDialog(GFileSystemModel&, String, bool disable_rename, Core::Object* parent = nullptr);
 
     struct PropertyValuePair {
         String property;

Applications/FileManager/main.cpp

@@ -72,7 +72,7 @@ int main(int argc, char** argv)
         return 1;
     }
 
-    RefPtr<CConfigFile> config = CConfigFile::get_for_app("FileManager");
+    RefPtr<Core::ConfigFile> config = Core::ConfigFile::get_for_app("FileManager");
 
     GApplication app(argc, argv);
 

Applications/Help/ManualSectionNode.cpp

@@ -41,7 +41,7 @@ void ManualSectionNode::reify_if_needed() const
         return;
     m_reified = true;
 
-    CDirIterator dir_iter { path(), CDirIterator::Flags::SkipDots };
+    Core::DirIterator dir_iter { path(), Core::DirIterator::Flags::SkipDots };
 
     while (dir_iter.has_next()) {
         FileSystemPath file_path(dir_iter.next_path());

Applications/Help/main.cpp

@@ -113,10 +113,10 @@ int main(int argc, char* argv[])
 
         dbg() << "Opening page at " << path;
 
-        auto file = CFile::construct();
+        auto file = Core::File::construct();
         file->set_filename(path);
 
-        if (!file->open(CIODevice::OpenMode::ReadOnly)) {
+        if (!file->open(Core::IODevice::OpenMode::ReadOnly)) {
             int saved_errno = errno;
             GMessageBox::show(strerror(saved_errno), "Failed to open man page", GMessageBox::Type::Error, GMessageBox::InputType::OK, window);
             return;

Applications/HexEditor/HexEditor.cpp

@@ -564,7 +564,7 @@ void HexEditor::paint_event(GPaintEvent& event)
     }
 }
 
-void HexEditor::leave_event(CEvent&)
+void HexEditor::leave_event(Core::Event&)
 {
     ASSERT(window());
     window()->set_override_cursor(GStandardCursor::None);

Applications/HexEditor/HexEditor.h

@@ -73,7 +73,7 @@ protected:
     virtual void mousemove_event(GMouseEvent&) override;
     virtual void keydown_event(GKeyEvent&) override;
     virtual bool accepts_focus() const override { return true; }
-    virtual void leave_event(CEvent&) override;
+    virtual void leave_event(Core::Event&) override;
 
 private:
     bool m_readonly { false };

Applications/HexEditor/HexEditorWidget.cpp

@@ -235,8 +235,8 @@ void HexEditorWidget::update_title()
 
 void HexEditorWidget::open_file(const String& path)
 {
-    auto file = CFile::construct(path);
-    if (!file->open(CIODevice::ReadOnly)) {
+    auto file = Core::File::construct(path);
+    if (!file->open(Core::IODevice::ReadOnly)) {
         GMessageBox::show(String::format("Opening \"%s\" failed: %s", path.characters(), strerror(errno)), "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
         return;
     }

Applications/IRCClient/IRCClient.cpp

@@ -60,9 +60,9 @@ IRCClient::IRCClient()
     : m_nickname("seren1ty")
     , m_client_window_list_model(IRCWindowListModel::create(*this))
     , m_log(IRCLogBuffer::create())
-    , m_config(CConfigFile::get_for_app("IRCClient"))
+    , m_config(Core::ConfigFile::get_for_app("IRCClient"))
 {
-    m_socket = CTCPSocket::construct(this);
+    m_socket = Core::TCPSocket::construct(this);
     m_nickname = m_config->read_entry("User", "Nickname", "seren1ty");
     m_hostname = m_config->read_entry("Connection", "Server", "");
     m_port = m_config->read_num_entry("Connection", "Port", 6667);
@@ -83,7 +83,7 @@ void IRCClient::set_server(const String& hostname, int port)
 
 void IRCClient::on_socket_connected()
 {
-    m_notifier = CNotifier::construct(m_socket->fd(), CNotifier::Read);
+    m_notifier = Core::Notifier::construct(m_socket->fd(), Core::Notifier::Read);
     m_notifier->on_ready_to_read = [this] { receive_from_server(); };
 
     send_user();

Applications/IRCClient/IRCClient.h

@@ -38,9 +38,8 @@
 class IRCChannel;
 class IRCQuery;
 class IRCWindowListModel;
-class CNotifier;
 
-class IRCClient final : public CObject {
+class IRCClient final : public Core::Object {
     C_OBJECT(IRCClient)
     friend class IRCChannel;
     friend class IRCQuery;
@@ -162,10 +161,10 @@ private:
     String m_hostname;
     int m_port { 6667 };
 
-    RefPtr<CTCPSocket> m_socket;
+    RefPtr<Core::TCPSocket> m_socket;
 
     String m_nickname;
-    RefPtr<CNotifier> m_notifier;
+    RefPtr<Core::Notifier> m_notifier;
     HashMap<String, RefPtr<IRCChannel>, CaseInsensitiveStringTraits> m_channels;
     HashMap<String, RefPtr<IRCQuery>, CaseInsensitiveStringTraits> m_queries;
 
@@ -175,5 +174,5 @@ private:
 
     NonnullRefPtr<IRCWindowListModel> m_client_window_list_model;
     NonnullRefPtr<IRCLogBuffer> m_log;
-    NonnullRefPtr<CConfigFile> m_config;
+    NonnullRefPtr<Core::ConfigFile> m_config;
 };

Applications/PaintBrush/SprayTool.cpp

@@ -37,7 +37,7 @@
 
 SprayTool::SprayTool()
 {
-    m_timer = CTimer::construct();
+    m_timer = Core::Timer::construct();
     m_timer->on_timeout = [&]() {
         paint_it();
     };

Applications/PaintBrush/SprayTool.h

@@ -46,7 +46,7 @@ public:
 private:
     virtual const char* class_name() const override { return "SprayTool"; }
     void paint_it();
-    RefPtr<CTimer> m_timer;
+    RefPtr<Core::Timer> m_timer;
     Point m_last_pos;
     Color m_color;
     RefPtr<GMenu> m_context_menu;

Applications/Piano/MainWidget.cpp

@@ -70,7 +70,7 @@ MainWidget::~MainWidget()
 // FIXME: There are some unnecessary calls to update() throughout this program,
 // which are an easy target for optimization.
 
-void MainWidget::custom_event(CCustomEvent&)
+void MainWidget::custom_event(Core::CustomEvent&)
 {
     m_wave_widget->update();
 

Applications/Piano/MainWidget.h

@@ -27,8 +27,8 @@
 
 #pragma once
 
+#include "Music.h"
 #include <LibGUI/GWidget.h>
-#include <Music.h>
 
 class AudioEngine;
 class WaveWidget;
@@ -48,7 +48,7 @@ private:
 
     virtual void keydown_event(GKeyEvent&) override;
     virtual void keyup_event(GKeyEvent&) override;
-    virtual void custom_event(CCustomEvent&) override;
+    virtual void custom_event(Core::CustomEvent&) override;
 
     void note_key_action(int key_code, Switch);
     void special_key_action(int key_code);

Applications/Piano/main.cpp

@@ -55,8 +55,8 @@ int main(int argc, char** argv)
     window->show();
 
     LibThread::Thread audio_thread([&] {
-        auto audio = CFile::construct("/dev/audio");
-        if (!audio->open(CIODevice::WriteOnly)) {
+        auto audio = Core::File::construct("/dev/audio");
+        if (!audio->open(Core::IODevice::WriteOnly)) {
             dbgprintf("Can't open audio device: %s", audio->error_string());
             return 1;
         }
@@ -65,8 +65,8 @@ int main(int argc, char** argv)
         for (;;) {
             audio_engine.fill_buffer(buffer);
             audio->write(reinterpret_cast<u8*>(buffer.data()), buffer_size);
-            CEventLoop::current().post_event(*main_widget, make<CCustomEvent>(0));
-            CEventLoop::wake();
+            Core::EventLoop::current().post_event(*main_widget, make<Core::CustomEvent>(0));
+            Core::EventLoop::wake();
         }
     });
     audio_thread.start();

Applications/SoundPlayer/PlaybackManager.cpp

@@ -29,7 +29,7 @@
 PlaybackManager::PlaybackManager(NonnullRefPtr<AClientConnection> connection)
     : m_connection(connection)
 {
-    m_timer = CTimer::construct(100, [&]() {
+    m_timer = Core::Timer::construct(100, [&]() {
         if (!m_loader)
             return;
         next_buffer();

Applications/SoundPlayer/PlaybackManager.h

@@ -70,5 +70,5 @@ private:
     RefPtr<ABuffer> m_next_buffer;
     RefPtr<ABuffer> m_current_buffer;
     Vector<RefPtr<ABuffer>> m_buffers;
-    RefPtr<CTimer> m_timer;
+    RefPtr<Core::Timer> m_timer;
 };

Applications/SystemMonitor/DevicesModel.cpp

@@ -121,8 +121,8 @@ GVariant DevicesModel::data(const GModelIndex& index, Role) const
 
 void DevicesModel::update()
 {
-    auto proc_devices = CFile::construct("/proc/devices");
-    if (!proc_devices->open(CIODevice::OpenMode::ReadOnly))
+    auto proc_devices = Core::File::construct("/proc/devices");
+    if (!proc_devices->open(Core::IODevice::OpenMode::ReadOnly))
         ASSERT_NOT_REACHED();
 
     auto json = JsonValue::from_string(proc_devices->read_all()).as_array();
@@ -148,7 +148,7 @@ void DevicesModel::update()
     });
 
     auto fill_in_paths_from_dir = [this](const String& dir) {
-        CDirIterator dir_iter { dir, CDirIterator::Flags::SkipDots };
+        Core::DirIterator dir_iter { dir, Core::DirIterator::Flags::SkipDots };
         while (dir_iter.has_next()) {
             auto name = dir_iter.next_path();
             auto path = String::format("%s/%s", dir.characters(), name.characters());

Applications/SystemMonitor/MemoryStatsWidget.cpp

@@ -93,8 +93,8 @@ static inline size_t bytes_to_kb(size_t bytes)
 
 void MemoryStatsWidget::refresh()
 {
-    auto proc_memstat = CFile::construct("/proc/memstat");
-    if (!proc_memstat->open(CIODevice::OpenMode::ReadOnly))
+    auto proc_memstat = Core::File::construct("/proc/memstat");
+    if (!proc_memstat->open(Core::IODevice::OpenMode::ReadOnly))
         ASSERT_NOT_REACHED();
 
     auto file_contents = proc_memstat->read_all();

Applications/SystemMonitor/NetworkStatisticsWidget.cpp

@@ -81,7 +81,7 @@ NetworkStatisticsWidget::NetworkStatisticsWidget(GWidget* parent)
         net_tcp_fields.empend("bytes_out", "Bytes Out", TextAlignment::CenterRight);
         m_socket_table_view->set_model(GJsonArrayModel::create("/proc/net/tcp", move(net_tcp_fields)));
 
-        m_update_timer = CTimer::construct(
+        m_update_timer = Core::Timer::construct(
             1000, [this] {
                 update_models();
             },

Applications/SystemMonitor/NetworkStatisticsWidget.h

@@ -42,5 +42,5 @@ private:
 
     RefPtr<GTableView> m_adapter_table_view;
     RefPtr<GTableView> m_socket_table_view;
-    RefPtr<CTimer> m_update_timer;
+    RefPtr<Core::Timer> m_update_timer;
 };

Applications/SystemMonitor/ProcessMemoryMapWidget.cpp

@@ -73,7 +73,7 @@ ProcessMemoryMapWidget::ProcessMemoryMapWidget(GWidget* parent)
     m_json_model = GJsonArrayModel::create({}, move(pid_vm_fields));
     m_table_view->set_model(GSortingProxyModel::create(*m_json_model));
     m_table_view->model()->set_key_column_and_sort_order(0, GSortOrder::Ascending);
-    m_timer = CTimer::construct(1000, [this] { refresh(); }, this);
+    m_timer = Core::Timer::construct(1000, [this] { refresh(); }, this);
 }
 
 ProcessMemoryMapWidget::~ProcessMemoryMapWidget()

Applications/SystemMonitor/ProcessMemoryMapWidget.h

@@ -28,7 +28,10 @@
 
 #include <LibGUI/GWidget.h>
 
-class CTimer;
+namespace Core {
+class Timer;
+}
+
 class GJsonArrayModel;
 class GTableView;
 
@@ -45,5 +48,5 @@ private:
     RefPtr<GTableView> m_table_view;
     RefPtr<GJsonArrayModel> m_json_model;
     pid_t m_pid { -1 };
-    RefPtr<CTimer> m_timer;
+    RefPtr<Core::Timer> m_timer;
 };

Applications/SystemMonitor/ProcessModel.cpp

@@ -335,7 +335,7 @@ GVariant ProcessModel::data(const GModelIndex& index, Role role) const
 
 void ProcessModel::update()
 {
-    auto all_processes = CProcessStatisticsReader::get_all();
+    auto all_processes = Core::ProcessStatisticsReader::get_all();
 
     unsigned last_sum_times_scheduled = 0;
     for (auto& it : m_threads)

Applications/SystemMonitor/ProcessStacksWidget.cpp

@@ -37,7 +37,7 @@ ProcessStacksWidget::ProcessStacksWidget(GWidget* parent)
     m_stacks_editor = GTextEditor::construct(GTextEditor::Type::MultiLine, this);
     m_stacks_editor->set_readonly(true);
 
-    m_timer = CTimer::construct(1000, [this] { refresh(); }, this);
+    m_timer = Core::Timer::construct(1000, [this] { refresh(); }, this);
 }
 
 ProcessStacksWidget::~ProcessStacksWidget()
@@ -54,8 +54,8 @@ void ProcessStacksWidget::set_pid(pid_t pid)
 
 void ProcessStacksWidget::refresh()
 {
-    auto file = CFile::construct(String::format("/proc/%d/stack", m_pid));
-    if (!file->open(CIODevice::ReadOnly)) {
+    auto file = Core::File::construct(String::format("/proc/%d/stack", m_pid));
+    if (!file->open(Core::IODevice::ReadOnly)) {
         m_stacks_editor->set_text(String::format("Unable to open %s", file->filename().characters()));
         return;
     }

Applications/SystemMonitor/ProcessStacksWidget.h

@@ -29,7 +29,9 @@
 #include <LibGUI/GTextEditor.h>
 #include <LibGUI/GWidget.h>
 
-class CTimer;
+namespace Core {
+class Timer;
+}
 
 class ProcessStacksWidget final : public GWidget {
     C_OBJECT(ProcessStacksWidget)
@@ -43,5 +45,5 @@ public:
 private:
     pid_t m_pid { -1 };
     RefPtr<GTextEditor> m_stacks_editor;
-    RefPtr<CTimer> m_timer;
+    RefPtr<Core::Timer> m_timer;
 };

Applications/SystemMonitor/main.cpp

@@ -146,7 +146,7 @@ int main(int argc, char** argv)
     toolbar->set_has_frame(false);
     auto process_table_view = ProcessTableView::construct(process_table_container);
 
-    auto refresh_timer = CTimer::construct(1000, [&] {
+    auto refresh_timer = Core::Timer::construct(1000, [&] {
         process_table_view->refresh();
         if (auto* memory_stats_widget = MemoryStatsWidget::the())
             memory_stats_widget->refresh();

Applications/Taskbar/TaskbarWindow.cpp

@@ -81,15 +81,15 @@ void TaskbarWindow::create_quick_launch_bar()
     int total_width = 6;
     bool first = true;
 
-    auto config = CConfigFile::get_for_app("Taskbar");
+    auto config = Core::ConfigFile::get_for_app("Taskbar");
     constexpr const char* quick_launch = "QuickLaunch";
 
-    // FIXME: CConfigFile does not keep the order of the entries.
+    // FIXME: Core::ConfigFile does not keep the order of the entries.
     for (auto& name : config->keys(quick_launch)) {
         auto af_name = config->read_entry(quick_launch, name);
         ASSERT(!af_name.is_null());
         auto af_path = String::format("/res/apps/%s", af_name.characters());
-        auto af = CConfigFile::open(af_path);
+        auto af = Core::ConfigFile::open(af_path);
         auto app_executable = af->read_entry("App", "Executable");
         auto app_icon_path = af->read_entry("Icons", "16x16");
 

Applications/Terminal/main.cpp

@@ -195,7 +195,7 @@ int main(int argc, char** argv)
 
     const char* command_to_execute = "/bin/Shell";
 
-    CArgsParser args_parser;
+    Core::ArgsParser args_parser;
     args_parser.add_option(command_to_execute, "Execute this command inside the terminal", nullptr, 'e', "command");
     args_parser.parse(argc, argv);
 
@@ -215,7 +215,7 @@ int main(int argc, char** argv)
     window->set_background_color(Color::Black);
     window->set_double_buffering_enabled(false);
 
-    RefPtr<CConfigFile> config = CConfigFile::get_for_app("Terminal");
+    RefPtr<Core::ConfigFile> config = Core::ConfigFile::get_for_app("Terminal");
     auto terminal = TerminalWidget::construct(ptm_fd, true, config);
     terminal->on_command_exit = [&] {
         app.quit(0);

Applications/TextEditor/TextEditorWidget.cpp

@@ -431,8 +431,8 @@ void TextEditorWidget::update_title()
 
 void TextEditorWidget::open_sesame(const String& path)
 {
-    auto file = CFile::construct(path);
-    if (!file->open(CIODevice::ReadOnly)) {
+    auto file = Core::File::construct(path);
+    if (!file->open(Core::IODevice::ReadOnly)) {
         GMessageBox::show(String::format("Opening \"%s\" failed: %s", path.characters(), strerror(errno)), "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
         return;
     }