Source code of Windows XP (NT5)
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/*++
Copyright (c) 1989-2001 Microsoft Corporation
Module Name:
ppmacros.h
Abstract:
This header defines various generic macros for use by user mode Plug and
Play system components.
Author:
Jim Cavalaris (jamesca) 03/01/2001
Environment:
User-mode only.
Revision History:
01-March-2001 jamesca
Creation and initial implementation.
--*/
#ifndef _PPMACROS_H_
#define _PPMACROS_H_
//
// Debug output is filtered at two levels: A global level and a component
// specific level.
//
// Each debug output request specifies a component id and a filter level
// or mask. These variables are used to access the debug print filter
// database maintained by the system. The component id selects a 32-bit
// mask value and the level either specified a bit within that mask or is
// the mask value itself.
//
// If any of the bits specified by the level or mask are set in either the
// component mask or the global mask, then the debug output is permitted.
// Otherwise, the debug output is filtered and not printed.
//
// The component mask for filtering the debug output of this component is
// Kd_PNPMGR_Mask and may be set via the registry or the kernel debugger.
//
// The global mask for filtering the debug output of all components is
// Kd_WIN2000_Mask and may be set via the registry or the kernel debugger.
//
// The registry key for setting the mask value for this component is:
//
// HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\
// Session Manager\Debug Print Filter\PNPMGR
//
// The key "Debug Print Filter" may have to be created in order to create
// the component key.
//
// The following levels are used to filter debug output.
//
#define DBGF_ERRORS (0x00000001 | DPFLTR_MASK)
#define DBGF_WARNINGS (0x00000002 | DPFLTR_MASK)
#define DBGF_EVENT (0x00000010 | DPFLTR_MASK)
#define DBGF_REGISTRY (0x00000020 | DPFLTR_MASK)
#define DBGF_INSTALL (0x00000040 | DPFLTR_MASK)
//
// ASSERT macros
//
#ifdef MYASSERT
#undef MYASSERT
#endif
#if ASSERTS_ON
#define MYASSERT(x) if(!(x)) { AssertFail(__FILE__,__LINE__,#x); }
#else
#define MYASSERT(x)
#endif
//
// macros for setting and testing flags
//
#define SET_FLAG(Status, Flag) ((Status) |= (Flag))
#define CLEAR_FLAG(Status, Flag) ((Status) &= ~(Flag))
#define INVALID_FLAGS(ulFlags, ulAllowed) ((ulFlags) & ~(ulAllowed))
#define TEST_FLAGS(t,ulMask, ulBit) (((t)&(ulMask)) == (ulBit))
#define IS_FLAG_SET(t,ulMask) TEST_FLAGS(t,ulMask,ulMask)
#define IS_FLAG_CLEAR(t,ulMask) TEST_FLAGS(t,ulMask,0)
//
// other useful macros
//
#define ARRAY_SIZE(array) (sizeof(array)/sizeof(array[0]))
#define SIZECHARS(x) (sizeof((x))/sizeof(TCHAR))
#endif // _PPMACROS_H_