// Public nt-lite DDK IRQL declarations.

#pragma once

#include <stdint.h>

// Interrupt request level value used by DDK synchronization and IRP state.
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)

// Masks interrupts and returns an opaque state restored by KeRestoreInterrupts.
__declspec(dllexport) uintptr_t KeDisableInterrupts(void);

// Restores the interrupt state returned by KeDisableInterrupts.
__declspec(dllexport) void KeRestoreInterrupts(uintptr_t flags);

// Returns the current processor's software IRQL.
__declspec(dllexport) KIRQL KeGetCurrentIrql(void);

// Raises to newIrql and returns the previous level.
__declspec(dllexport) KIRQL KeRaiseIrql(KIRQL newIrql);

// Restores a previously returned level.
__declspec(dllexport) void KeLowerIrql(KIRQL oldIrql);

// Asserts that the current IRQL exactly matches expected.
__declspec(dllexport) void KeAssertIrql(KIRQL expected);

// Asserts that the current IRQL is at or below maxIrql.
__declspec(dllexport) void KeAssertIrqlAtOrBelow(KIRQL maxIrql);

// Returns nonzero when the current context may block.
__declspec(dllexport) int KeCanWait(void);

// Returns a diagnostic name for an IRQL.
__declspec(dllexport) const char* KeIrqlName(KIRQL irql);