Merge pull request #129 from ne-foss-org/kernel-task-scheduler-impl

[CHORE] KernelTask system for DDK drivers.

1 files changed, 49 insertions, 0 deletions

diff --git a/src/kernel/KernelKit/KernelTask.h b/src/kernel/KernelKit/KernelTask.h
new file mode 100644
index 00000000..1b94a9fc
--- /dev/null
+++ b/src/kernel/KernelKit/KernelTask.h
@@ -0,0 +1,49 @@
+// Copyright 2024-2026, Amlal El Mahrouss (amlal@nekernel.org)
+// Licensed under the Apache License, Version 2.0 (see LICENSE file)
+// Official repository: https://github.com/ne-foss-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 final {
+ 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 Start(KernelTask& task_ref, const KID& kid);
+  STATIC Bool CanBeStarted(const KernelTask& task_ref);
+};
+
+}  // namespace Kernel
+
+#endif