26 lines
877 B
C
26 lines
877 B
C
#pragma once
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// ke_sched.h - Multi-Level Feedback Queue scheduler
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// Three run queues (Low / Normal / High). IRQ 0 drives KeSchedulerTick.
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#include <ke_thread.h>
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#define QUANTUM_MS 10 // base time slice in milliseconds
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// Called once by KernelMain before any threads are created.
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void KeInitializeScheduler(void);
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// Add / remove a thread from the run queues.
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void KeReadyThread(THREAD* thread);
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void KeUnreadyThread(THREAD* thread);
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// Called from the timer ISR every QUANTUM_MS.
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void KeSchedulerTick(void);
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// Voluntarily yield the CPU. Picks the next runnable thread immediately.
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__declspec(dllexport) void KeYield(void);
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// Returns the thread currently running on this CPU (reads GS:[0]).
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THREAD* KeCurrentThread(void);
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// Set the current-thread GS slot. Called once per CPU at boot.
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void KeSetCurrentThread(THREAD* thread);
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