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40 lines
1 KiB
C
40 lines
1 KiB
C
#ifndef __CROSS_NT_RWLOCK__H__
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#define __CROSS_NT_RWLOCK__H__
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#ifndef MAXIMUM_PROCESSORS
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#define MAXIMUM_PROCESSORS 32
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#endif
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typedef union _NDIS_RW_LOCK_REFCOUNT {
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unsigned int RefCount;
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UCHAR cacheLine[16]; // One refCount per cache line
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} NDIS_RW_LOCK_REFCOUNT;
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typedef struct _NDIS_RW_LOCK {
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union {
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struct {
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KSPIN_LOCK SpinLock;
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PVOID Context;
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};
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UCHAR Reserved[16];
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};
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NDIS_RW_LOCK_REFCOUNT RefCount[MAXIMUM_PROCESSORS];
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} NDIS_RW_LOCK, *PNDIS_RW_LOCK;
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typedef struct _LOCK_STATE {
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USHORT LockState;
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KIRQL OldIrql;
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} LOCK_STATE, *PLOCK_STATE;
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#define RWLOCK_STATE_FREE 0
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#define RWLOCK_STATE_READ_ACQUIRED 1
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#define RWLOCK_STATE_WRITE_ACQUIRED 2
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#define RWLOCK_STATE_RECURSIVE 3
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#define RWLOCK_STATE_RELEASED 0xffff
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#define RWLOCK_FOR_WRITE TRUE
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#define RWLOCK_FOR_READ FALSE
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#endif /* __CROSS_NT_RWLOCK__H__ */
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