reactos/sdk/include/wdf/kmdf/1.17/wdfcore.h

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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
_WdfVersionBuild_
Module Name:
wdfcore.h
Abstract:
This is the main driver framework.
Environment:
kernel mode only
Revision History:
--*/
//
// NOTE: This header is generated by stubwork. Please make any
// modifications to the corresponding template files
// (.x or .y) and use stubwork to regenerate the header
//
#ifndef _WDFCORE_H_
#define _WDFCORE_H_
#ifndef WDF_EXTERN_C
#ifdef __cplusplus
#define WDF_EXTERN_C extern "C"
#define WDF_EXTERN_C_START extern "C" {
#define WDF_EXTERN_C_END }
#else
#define WDF_EXTERN_C
#define WDF_EXTERN_C_START
#define WDF_EXTERN_C_END
#endif
#endif
WDF_EXTERN_C_START
#if (NTDDI_VERSION >= NTDDI_WIN2K)
//
// Time conversion related macros
//
// to to to
// us ms sec
#define WDF_TIMEOUT_TO_SEC ((LONGLONG) 1 * 10 * 1000 * 1000)
#define WDF_TIMEOUT_TO_MS ((LONGLONG) 1 * 10 * 1000)
#define WDF_TIMEOUT_TO_US ((LONGLONG) 1 * 10)
FORCEINLINE
LONGLONG
WDF_REL_TIMEOUT_IN_SEC(
_In_ ULONGLONG Time
)
{
return Time * -1 * WDF_TIMEOUT_TO_SEC;
}
FORCEINLINE
LONGLONG
WDF_ABS_TIMEOUT_IN_SEC(
_In_ ULONGLONG Time
)
{
return Time * 1 * WDF_TIMEOUT_TO_SEC;
}
FORCEINLINE
LONGLONG
WDF_REL_TIMEOUT_IN_MS(
_In_ ULONGLONG Time
)
{
return Time * -1 * WDF_TIMEOUT_TO_MS;
}
FORCEINLINE
LONGLONG
WDF_ABS_TIMEOUT_IN_MS(
_In_ ULONGLONG Time
)
{
return Time * 1 * WDF_TIMEOUT_TO_MS;
}
FORCEINLINE
LONGLONG
WDF_REL_TIMEOUT_IN_US(
_In_ ULONGLONG Time
)
{
return Time * -1 * WDF_TIMEOUT_TO_US;
}
FORCEINLINE
LONGLONG
WDF_ABS_TIMEOUT_IN_US(
_In_ ULONGLONG Time
)
{
return Time * 1 * WDF_TIMEOUT_TO_US;
}
//
// Rounding functions
//
FORCEINLINE
size_t
WDF_ALIGN_SIZE_DOWN(
_In_ size_t Length,
_In_ size_t AlignTo
)
{
return Length & ~(AlignTo - 1);
}
FORCEINLINE
size_t
WDF_ALIGN_SIZE_UP(
_In_ size_t Length,
_In_ size_t AlignTo
)
{
return WDF_ALIGN_SIZE_DOWN(Length + AlignTo - 1, AlignTo);
}
//
// Pointer math
//
#define WDF_PTR_ADD_OFFSET_TYPE(_ptr, _offset, _type) \
((_type) (((PUCHAR) (_ptr)) + (_offset)))
#define WDF_PTR_ADD_OFFSET(_ptr, _offset) \
WDF_PTR_ADD_OFFSET_TYPE(_ptr, _offset, PVOID)
#define WDF_PTR_GET_OFFSET(_base, _addr) \
(size_t) (((PUCHAR) _addr) - ((PUCHAR) _base))
#if (OSVER(NTDDI_VERSION) == NTDDI_WIN2K)
//
// These definitions are necessary for building under a Win2K Environment.
//
#ifndef DECLARE_UNICODE_STRING_SIZE
#define DECLARE_UNICODE_STRING_SIZE(_var, _size) \
WCHAR _var ## _buffer[_size]; \
UNICODE_STRING _var = { 0, _size * sizeof(WCHAR) , _var ## _buffer }
#endif
#undef DECLARE_CONST_UNICODE_STRING
#define DECLARE_CONST_UNICODE_STRING(_variablename, _string) \
const WCHAR _variablename ## _buffer[] = _string; \
__pragma(warning(suppress:4204)) __pragma(warning(suppress:4221)) \
const UNICODE_STRING _variablename = { sizeof(_string) - sizeof(WCHAR), sizeof(_string), (PWSTR) _variablename ## _buffer }
#endif // (OSVER(NTDDI_VERSION) == NTDDI_WIN2K)
#endif // (NTDDI_VERSION >= NTDDI_WIN2K)
WDF_EXTERN_C_END
#endif // _WDFCORE_H_