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https://github.com/SerenityOS/serenity
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3fd4997fc2
Instead, use the FixedCharBuffer class to ensure we always use a static buffer storage for these names. This ensures that if a Process or a Thread were created, there's a guarantee that setting a new name will never fail, as only copying of strings should be done to that static storage. The limits which are set are 32 characters for processes' names and 64 characters for thread names - this is because threads' names could be more verbose than processes' names.
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Arch/Processor.h>
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#include <Kernel/Sections.h>
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#include <Kernel/Tasks/Process.h>
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#include <Kernel/Tasks/WaitQueue.h>
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#include <Kernel/Tasks/WorkQueue.h>
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namespace Kernel {
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WorkQueue* g_io_work;
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WorkQueue* g_ata_work;
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UNMAP_AFTER_INIT void WorkQueue::initialize()
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{
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g_io_work = new WorkQueue("IO WorkQueue Task"sv);
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g_ata_work = new WorkQueue("ATA WorkQueue Task"sv);
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}
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UNMAP_AFTER_INIT WorkQueue::WorkQueue(StringView name)
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{
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auto [_, thread] = Process::create_kernel_process(name, [this] {
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while (!Process::current().is_dying()) {
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WorkItem* item;
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bool have_more;
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m_items.with([&](auto& items) {
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item = items.take_first();
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have_more = !items.is_empty();
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});
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if (item) {
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item->function();
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delete item;
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if (have_more)
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continue;
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}
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[[maybe_unused]] auto result = m_wait_queue.wait_on({});
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}
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Process::current().sys$exit(0);
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VERIFY_NOT_REACHED();
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}).release_value_but_fixme_should_propagate_errors();
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m_thread = move(thread);
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}
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void WorkQueue::do_queue(WorkItem& item)
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{
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m_items.with([&](auto& items) {
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items.append(item);
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});
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m_wait_queue.wake_one();
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}
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}
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