KernelTaskScheduler.h

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/* ========================================
 
  Copyright (C) 2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
 
======================================== */
 
#pragma once

 
#include <ArchKit/ArchKit.h>
#include <KernelKit/CoreProcessScheduler.h>
#include <KernelKit/LockDelegate.h>
 
namespace Kernel {
class KernelTaskHelper;
 
typedef ProcessID KID;

class KERNEL_TASK final {
 public:
  Char               Name[kSchedNameLen] = {"KERNEL_TASK"};
  ProcessSubsystem   SubSystem{ProcessSubsystem::kProcessSubsystemKernel};
  HAL::StackFramePtr StackFrame{nullptr};
  UInt8*             StackReserve{nullptr};
  SizeT              StackSize{kSchedMaxStackSz};
  ProcessImage       Image{};
  KID Kid{0};
};

class KernelTaskHelper final {
 public:
  STATIC Bool Add(HAL::StackFramePtr frame_ptr, ProcessID new_kid);
  STATIC Bool Remove(const KID kid);
  STATIC Bool CanBeScheduled(const KERNEL_TASK& process);
  STATIC ErrorOr<KID> TheCurrentKID();
  STATIC SizeT        StartScheduling();
};
}  // namespace Kernel