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Kernel: Simplify Process factory functions

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- Instead of taking the first new thread as an out-parameter, we now
  bundle the process and its first thread in a struct and use that
  as the return value.

- Make all Process factory functions return ErrorOr. Use this to convert
  some places to more TRY().

- Drop the "try_" prefix on Process factory functions.
This commit is contained in:
Andreas Kling 2023-04-02 19:25:36 +02:00
parent 65438d8a85
commit a098266ff5
12 changed files with 319 additions and 78 deletions
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6
Kernel/Scheduler.cpp
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@ -366,13 +366,11 @@ UNMAP_AFTER_INIT void Scheduler::initialize()
VERIFY(Processor::is_initialized()); // sanity check
VERIFY(TimeManagement::is_initialized());
LockRefPtr<Thread> idle_thread;
g_finalizer_wait_queue = new WaitQueue;
g_finalizer_has_work.store(false, AK::MemoryOrder::memory_order_release);
s_colonel_process = Process::create_kernel_process(idle_thread, KString::must_create("colonel"sv), idle_loop, nullptr, 1, Process::RegisterProcess::No).leak_ref();
VERIFY(s_colonel_process);
VERIFY(idle_thread);
auto [colonel_process, idle_thread] = MUST(Process::create_kernel_process(KString::must_create("colonel"sv), idle_loop, nullptr, 1, Process::RegisterProcess::No));
s_colonel_process = &colonel_process.leak_ref();
idle_thread->set_priority(THREAD_PRIORITY_MIN);
idle_thread->set_name(KString::must_create("Idle Task #0"sv));