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