Kernel: Move all tasks-related code to the Tasks subdirectory

Kernel/WorkQueue.cpp

@@ -1,59 +0,0 @@
-/*
- * Copyright (c) 2021, the SerenityOS developers.
- * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#include <Kernel/Arch/Processor.h>
-#include <Kernel/Process.h>
-#include <Kernel/Sections.h>
-#include <Kernel/WaitQueue.h>
-#include <Kernel/WorkQueue.h>
-
-namespace Kernel {
-
-WorkQueue* g_io_work;
-WorkQueue* g_ata_work;
-
-UNMAP_AFTER_INIT void WorkQueue::initialize()
-{
-    g_io_work = new WorkQueue("IO WorkQueue Task"sv);
-    g_ata_work = new WorkQueue("ATA WorkQueue Task"sv);
-}
-
-UNMAP_AFTER_INIT WorkQueue::WorkQueue(StringView name)
-{
-    auto name_kstring = KString::try_create(name);
-    if (name_kstring.is_error())
-        TODO();
-    auto [_, thread] = Process::create_kernel_process(name_kstring.release_value(), [this] {
-        for (;;) {
-            WorkItem* item;
-            bool have_more;
-            m_items.with([&](auto& items) {
-                item = items.take_first();
-                have_more = !items.is_empty();
-            });
-            if (item) {
-                item->function();
-                delete item;
-
-                if (have_more)
-                    continue;
-            }
-            [[maybe_unused]] auto result = m_wait_queue.wait_on({});
-        }
-    }).release_value_but_fixme_should_propagate_errors();
-    m_thread = move(thread);
-}
-
-void WorkQueue::do_queue(WorkItem& item)
-{
-    m_items.with([&](auto& items) {
-        items.append(item);
-    });
-    m_wait_queue.wake_one();
-}
-
-}