#pragma once
// ke_irql.h - software IRQL skeleton
//
// This is intentionally small for the first IRQL/APC bring-up step.  It does
// not yet program interrupt hardware or replace the spinlock interrupt-disable
// path.  It gives the kernel one authoritative execution-level state plus
// assertions so blocking code can reject illegal callers early.

#include <stdint.h>

typedef uint8_t KIRQL;

#define PASSIVE_LEVEL   ((KIRQL)0)
#define APC_LEVEL       ((KIRQL)1)
#define DISPATCH_LEVEL  ((KIRQL)2)
#define DIRQL_BASE      ((KIRQL)16)
#define HIGH_LEVEL      ((KIRQL)31)

__declspec(dllexport) KIRQL KeGetCurrentIrql(void);

// Raise to newIrql and return the previous level.  Raising to a lower level is
// a kernel bug and will panic in checked/debug-style builds.
__declspec(dllexport) KIRQL KeRaiseIrql(KIRQL newIrql);

// Restore a previously returned level.  Lowering to a higher level is a kernel
// bug and will panic.
__declspec(dllexport) void KeLowerIrql(KIRQL oldIrql);

__declspec(dllexport) void KeAssertIrql(KIRQL expected);
__declspec(dllexport) void KeAssertIrqlAtOrBelow(KIRQL maxIrql);
__declspec(dllexport) int  KeCanWait(void);

// Internal/debug helper used by diagnostics and panic messages.
__declspec(dllexport) const char* KeIrqlName(KIRQL irql);