273 lines
8.5 KiB
C++
273 lines
8.5 KiB
C++
//+---------------------------------------------------------------------------
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// Copyright (C) 1991, Microsoft Corporation.
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//
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// File: debug.h
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//
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// Contents: Debugging macros. Stolen from old Cairo debnot.h with the
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// following history...
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//
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// History: 23-Jul-91 KyleP Created.
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// 15-Oct-91 KevinRo Major changes and comments added
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// 18-Oct-91 vich Consolidated win4p.hxx
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// 22-Oct-91 SatoNa Added SHLSTRICT
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// 29-Apr-92 BartoszM Moved from win4p.h
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// 3-Jun-92 BruceFo Added SMUISTRICT
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// 17-Dec-92 AlexT Moved UN..._PARM out of DEVL==1
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// 30-Sep-93 KyleP DEVL obsolete
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// 18-Jun-94 AlexT Make Assert a better statement
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// 7-Oct-94 BruceFo Stole and ripped out everything except
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// debug prints and asserts.
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// 30-Dec-95 BruceFo More cleanup, make suitable for DFS
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// project. Get rid of Win4 naming.
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//
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// NOTE: you must call the DebugInitialize() API before calling any other
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// APIs!
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//
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//----------------------------------------------------------------------------
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#ifndef __DEBUG_H__
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#define __DEBUG_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h> // for vsprintf
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#include <stdarg.h>
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//----------------------------------------------------------------------------
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// Parameter Macros
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//
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// To avoid compiler warnings for unimplemented functions, use
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// UNIMPLEMENTED_PARM(x) for each unreferenced parameter. This will
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// later be defined to nul to reveal functions that we forgot to implement.
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//
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// For functions which will never use a parameter, use
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// UNREFERENCED_PARM(x).
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//
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#define UNIMPLEMENTED_PARM(x) (x)
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#define UNREFERENCED_PARM(x) (x)
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#if DBG == 1
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//
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// DEBUG -- DEBUG -- DEBUG -- DEBUG -- DEBUG
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//
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#ifndef DEBUGAPI
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#define DEBUGAPI __stdcall
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#endif
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//
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// The following APIs are public and may be called
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//
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void DEBUGAPI
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DebugInitialize(
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void);
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unsigned long DEBUGAPI
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DebugSetInfoLevel(
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unsigned long ulNewLevel);
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unsigned long DEBUGAPI
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DebugSetInfoMask(
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unsigned long ulNewMask);
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unsigned long DEBUGAPI
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DebugSetAssertLevel(
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unsigned long ulNewLevel);
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//
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// The following APIs should never be called directly. They will be called
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// via macros defined herein.
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//
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void DEBUGAPI
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Debugvprintf(
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unsigned long ulCompMask,
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char const *pszComp,
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char const *ppszfmt,
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va_list ArgList);
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void DEBUGAPI
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DebugAssertEx(
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char const *pszFile,
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int iLine,
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char const *pszMsg);
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void DEBUGAPI
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DebugCheckInit(
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char* pInfoLevelString,
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unsigned long* InfoLevel);
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//
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// Public assertion macros
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//
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#define DebugAssert(x) (void)((x) || (DebugAssertEx(__FILE__, __LINE__, #x),0))
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#define DebugVerify(x) DebugAssert(x)
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//
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// Debug print macros
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//
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#define DEB_ERROR 0x00000001 // exported error paths
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#define DEB_WARN 0x00000002 // exported warnings
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#define DEB_TRACE 0x00000004 // exported trace messages
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#define DEB_DBGOUT 0x00000010 // Output to debugger
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#define DEB_STDOUT 0x00000020 // Output to stdout
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#define DEB_IERROR 0x00000100 // internal error paths
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#define DEB_IWARN 0x00000200 // internal warnings
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#define DEB_ITRACE 0x00000400 // internal trace messages
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#define DEB_USER1 0x00010000 // User defined
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#define DEB_USER2 0x00020000 // User defined
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#define DEB_USER3 0x00040000 // User defined
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#define DEB_USER4 0x00080000 // User defined
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#define DEB_USER5 0x00100000 // User defined
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#define DEB_USER6 0x00200000 // User defined
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#define DEB_USER7 0x00400000 // User defined
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#define DEB_USER8 0x00800000 // User defined
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#define DEB_USER9 0x01000000 // User defined
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#define DEB_USER10 0x02000000 // User defined
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#define DEB_USER11 0x04000000 // User defined
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#define DEB_USER12 0x08000000 // User defined
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#define DEB_USER13 0x10000000 // User defined
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#define DEB_USER14 0x20000000 // User defined
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#define DEB_USER15 0x40000000 // User defined
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#define DEB_NOCOMPNAME 0x80000000 // suppress component name
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#define DEB_FORCE 0x7fffffff // force message
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#define ASSRT_MESSAGE 0x00000001 // Output a message
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#define ASSRT_BREAK 0x00000002 // Int 3 on assertion
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#define ASSRT_POPUP 0x00000004 // And popup message
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//+----------------------------------------------------------------------
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//
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// DECLARE_DEBUG(comp)
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// DECLARE_INFOLEVEL(comp)
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//
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// This macro defines xxDebugOut where xx is the component prefix
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// to be defined. This declares a static variable 'xxInfoLevel', which
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// can be used to control the type of xxDebugOut messages printed to
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// the terminal. For example, xxInfoLevel may be set at the debug terminal.
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// This will enable the user to turn debugging messages on or off, based
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// on the type desired. The predefined types are defined below. Component
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// specific values should use the upper 24 bits
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//
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// To Use:
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//
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// 1) In your components main include file, include the line
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// DECLARE_DEBUG(comp)
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// where comp is your component prefix
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//
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// 2) In one of your components source files, include the line
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// DECLARE_INFOLEVEL(comp)
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// where comp is your component prefix. This will define the
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// global variable that will control output.
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//
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// It is suggested that any component define bits be combined with
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// existing bits. For example, if you had a specific error path that you
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// wanted, you might define DEB_<comp>_ERRORxxx as being
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//
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// (0x100 | DEB_ERROR)
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//
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// This way, we can turn on DEB_ERROR and get the error, or just 0x100
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// and get only your error.
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//
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//-----------------------------------------------------------------------
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#ifndef DEF_INFOLEVEL
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#define DEF_INFOLEVEL 0
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#endif
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#ifdef __cplusplus
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#define DECLARE_INFOLEVEL(comp) \
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extern "C" unsigned long comp##InfoLevel = DEF_INFOLEVEL; \
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extern "C" char* comp##InfoLevelString = #comp;
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#define DECLARE_DEBUG(comp) \
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extern "C" unsigned long comp##InfoLevel;\
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extern "C" char* comp##InfoLevelString;\
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__inline void\
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comp##InlineDebugOut(unsigned long fDebugMask, char const *pszfmt, ...)\
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{\
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DebugCheckInit(comp##InfoLevelString, &comp##InfoLevel);\
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if (comp##InfoLevel & fDebugMask)\
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{\
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va_list va;\
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va_start(va, pszfmt);\
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Debugvprintf(fDebugMask, comp##InfoLevelString, pszfmt, va);\
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va_end(va);\
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}\
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}\
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class comp##CDbgTrace\
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{\
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private:\
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unsigned long _ulFlags;\
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char const * const _pszName;\
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public:\
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comp##CDbgTrace(unsigned long ulFlags, char const * const pszName)\
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: _ulFlags(ulFlags), _pszName(pszName)\
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{\
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comp##InlineDebugOut(_ulFlags, "Entering %s\n", _pszName);\
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}\
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~comp##CDbgTrace()\
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{\
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comp##InlineDebugOut(_ulFlags, "Exiting %s\n", _pszName);\
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}\
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};
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#else // ! __cplusplus
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#define DECLARE_INFOLEVEL(comp) \
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extern unsigned long comp##InfoLevel = DEF_INFOLEVEL; \
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extern char* comp##InfoLevelString = #comp;
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#define DECLARE_DEBUG(comp) \
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extern unsigned long comp##InfoLevel;\
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extern char *comp##InfoLevelString;\
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__inline void\
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comp##InlineDebugOut(unsigned long fDebugMask, char const *pszfmt, ...)\
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{\
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DebugCheckInit(comp##InfoLevelString, &comp##InfoLevel);\
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if (comp##InfoLevel & fDebugMask)\
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{\
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va_list va;\
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va_start(va, pszfmt);\
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Debugvprintf(fDebugMask, comp##InfoLevelString, pszfmt, va);\
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va_end(va);\
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}\
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}
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#endif // ! __cplusplus
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#else // DBG == 0
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//
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// NO DEBUG -- NO DEBUG -- NO DEBUG -- NO DEBUG -- NO DEBUG
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//
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#define DebugInitialize()
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#define DebugAssert(x) NULL
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#define DebugVerify(x) (x)
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#define DECLARE_DEBUG(comp)
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#define DECLARE_INFOLEVEL(comp)
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#endif // DBG == 0
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // __DEBUG_H__
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