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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.
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
/*
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* Copyright (c) 2020, 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/Sections.h>
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#include <Kernel/Tasks/FinalizerTask.h>
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#include <Kernel/Tasks/Process.h>
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#include <Kernel/Tasks/Scheduler.h>
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namespace Kernel {
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static constexpr StringView finalizer_task_name = "Finalizer Task"sv;
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static void finalizer_task(void*)
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{
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Thread::current()->set_priority(THREAD_PRIORITY_LOW);
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while (!Process::current().is_dying()) {
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// The order of this if-else is important: We want to continue trying to finalize the threads in case
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// Thread::finalize_dying_threads set g_finalizer_has_work back to true due to OOM conditions
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if (g_finalizer_has_work.exchange(false, AK::MemoryOrder::memory_order_acq_rel) == true)
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Thread::finalize_dying_threads();
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else
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g_finalizer_wait_queue->wait_forever(finalizer_task_name);
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}
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Process::current().sys$exit(0);
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VERIFY_NOT_REACHED();
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}
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UNMAP_AFTER_INIT void FinalizerTask::spawn()
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{
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auto [_, finalizer_thread] = MUST(Process::create_kernel_process(finalizer_task_name, finalizer_task, nullptr));
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g_finalizer = move(finalizer_thread);
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}
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}
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