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// stddcls.h -- Precompiled headers for WDM drivers 
// Copyright (C) 1999 by Walter Oney 
// All rights reserved 
 
#ifdef __cplusplus 
extern "C" { 
#endif 
 
#include  
#include  
 
#ifdef __cplusplus 
	} 
#endif 
 
#define PAGEDCODE code_seg("page") 
#define LOCKEDCODE code_seg() 
#define INITCODE code_seg("init") 
 
#define PAGEDDATA data_seg("page") 
#define LOCKEDDATA data_seg() 
#define INITDATA data_seg("init") 
 
#define arraysize(p) (sizeof(p)/sizeof((p)[0])) 
 
// Override DDK definition of ASSERT so that debugger halts in the 
// affected code and halts even in the unchecked OS 
 
#if DBG && defined(_X86_) 
	#undef ASSERT 
	#define ASSERT(e) if(!(e)){DbgPrint("Assertion failure in "\ 
	__FILE__ ", line %d: " #e "\n", __LINE__);\ 
	_asm int 1\ 
  } 
#endif 
 
// Currently, the support routines for managing the device remove lock aren't 
// defined in the WDM.H or implemented in Windows 98. The following declarations 
// provide equivalent functionality on all WDM platforms by means of a private 
// implementation in RemoveLock.cpp 
 
typedef struct _REMOVE_LOCK { 
	LONG usage;					// reference count 
	BOOLEAN removing;			// true if removal is pending 
	KEVENT evRemove;			// event to wait on 
	} REMOVE_LOCK, *PREMOVE_LOCK; 
 
VOID InitializeRemoveLock(PREMOVE_LOCK lock, ULONG tag, ULONG minutes, ULONG maxcount); 
NTSTATUS AcquireRemoveLock(PREMOVE_LOCK lock, PVOID tag); 
VOID ReleaseRemoveLock(PREMOVE_LOCK lock, PVOID tag); 
VOID ReleaseRemoveLockAndWait(PREMOVE_LOCK lock, PVOID tag); 
 
// Redefine macros in case the programmer changes the driver to include NTDDK.H 
// instead of WDM.H 
 
#undef IoInitializeRemoveLock 
#define IoInitializeRemoveLock InitializeRemoveLock 
 
#undef IoAcquireRemoveLock 
#define IoAcquireRemoveLock AcquireRemoveLock 
 
#undef IoReleaseRemoveLock 
#define IoReleaseRemoveLock ReleaseRemoveLock 
 
#undef IoReleaseRemoveLockAndWait 
#define IoReleaseRemoveLockAndWait ReleaseRemoveLockAndWait 
 
#define _IO_REMOVE_LOCK _REMOVE_LOCK 
#define IO_REMOVE_LOCK REMOVE_LOCK 
#define PIO_REMOVE_LOCK PREMOVE_LOCK