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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/nekernel-org/nekernel
#ifndef KERNELKIT_KERNELTASKSCHEDULER_H
#define KERNELKIT_KERNELTASKSCHEDULER_H
/// @file KernelTaskScheduler.h
/// @brief Kernel Task Scheduler backend file.
/// @author Amlal El Mahrouss (amlal@nekernel.org)
#include <ArchKit/ArchKit.h>
#include <KernelKit/CoreProcessScheduler.h>
#include <KernelKit/LockDelegate.h>
namespace Kernel {
class KernelTaskHelper;
using KID = ProcessID;
/// @brief Equivalent of UserProcess, but for kernel tasks.
/// @author Amlal
class KernelTask {
public:
Char Name[kSchedNameLen] = {"KernelTask"};
ProcessSubsystem SubSystem{ProcessSubsystem::kProcessSubsystemKernel};
HAL::StackFramePtr StackFrame{nullptr};
UInt8* StackReserve{nullptr};
SizeT StackSize{kSchedMaxStackSz};
ProcessImage Image{};
/// @brief a KID is a Kernel ID, it is used to find a task running within the kernel.
KID Kid{};
NE_NON_VETTABLE;
};
/// @brief Equivalent of UserProcessHelper, but for kernel tasks.
/// @author Amlal
class KernelTaskHelper final {
public:
STATIC Bool Add(HAL::StackFramePtr frame_ptr, KID kid);
STATIC Bool Remove(const KID kid);
STATIC Bool CanBeScheduled(const KernelTask& process);
STATIC ErrorOr<KID> TheCurrentKID();
STATIC SizeT StartScheduling();
};
} // namespace Kernel
#endif
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