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137 lines
5.2 KiB
C
137 lines
5.2 KiB
C
#ifndef __WXDEBUG__
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#define __WXDEBUG__
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// This library provides fairly straight forward debugging functionality, this
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// is split into two main sections. The first is assertion handling, there are
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// three types of assertions provided here. The most commonly used one is the
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// ASSERT(condition) macro which will pop up a message box including the file
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// and line number if the condition evaluates to FALSE. Then there is the
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// EXECUTE_ASSERT macro which is the same as ASSERT except the condition will
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// still be executed in NON debug builds. The final type of assertion is the
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// KASSERT macro which is more suitable for pure (perhaps kernel) filters as
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// the condition is printed onto the debugger rather than in a message box.
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//
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// The other part of the debug module facilties is general purpose logging.
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// This is accessed by calling DbgLog(). The function takes a type and level
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// field which define the type of informational string you are presenting and
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// it's relative importance. The type field can be a combination (one or more)
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// of LOG_TIMING, LOG_TRACE, LOG_MEMORY, LOG_LOCKING and LOG_ERROR. The level
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// is a DWORD value where zero defines highest important. Use of zero as the
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// debug logging level is to be encouraged ONLY for major errors or events as
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// they will ALWAYS be displayed on the debugger. Other debug output has it's
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// level matched against the current debug output level stored in the registry
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// for this module and if less than the current setting it will be displayed.
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//
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// Each module or executable has it's own debug output level for each of the
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// five types. These are read in when the DbgInitialise function is called
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// for DLLs linking to STRMBASE.LIB this is done automatically when the DLL
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// is loaded, executables must call it explicitely with the module instance
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// handle given to them through the WINMAIN entry point. An executable must
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// also call DbgTerminate when they have finished to clean up the resources
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// the debug library uses, once again this is done automatically for DLLs
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// These are the five different categories of logging information
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#ifdef _DEBUG
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enum
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{
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LOG_TRACE = 0x00000001, // General tracing
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LOG_ENTRY = 0x00000002, // Function entry logging
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LOG_EXIT = 0x00000004, // Function exit logging
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LOG_MEMORY = 0x00000008, // Memory alloc/free debugging
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LOG_ERROR = 0x00000010, // Error notification
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LOG_UNUSED0 = 0x00000020, // reserved
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LOG_UNUSED1 = 0x00000040, // reserved
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LOG_UNUSED2 = 0x00000080, // reserved
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LOG_CHUM = 0x00000100, // Chumtoad debugging
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LOG_LEECH = 0x00000200, // Leech debugging
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LOG_ICHTHYOSAUR = 0x00000400, // Ichthyosaur debugging
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};
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// These are public but should be called only by the DLLMain function
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void WINAPI DbgInitialise(HINSTANCE hInst);
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void WINAPI DbgTerminate();
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// These are public but should be called by macro only
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void WINAPI DbgKernelAssert(const TCHAR *pCondition,const TCHAR *pFileName,INT iLine);
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void WINAPI DbgLogInfo(DWORD Type,DWORD Level,const TCHAR *pFormat,...);
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void WINAPI DbgOutString(LPCTSTR psz);
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// These are the macros that should be used in code.
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#define DBGASSERT(_x_) \
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if (!(_x_)) \
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DbgKernelAssert(TEXT(#_x_),TEXT(__FILE__),__LINE__)
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#define DBGBREAK(_x_) \
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DbgKernelAssert(TEXT(#_x_),TEXT(__FILE__),__LINE__)
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#define DBGASSERTEXECUTE(_x_) DBGASSERT(_x_)
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#define DBGLOG(_x_) DbgLogInfo _x_
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#define DBGOUT(_x_) DbgOutString(_x_)
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#define ValidateReadPtr(p,cb) \
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{if(IsBadReadPtr((PVOID)p,cb) == TRUE) \
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DBGBREAK("Invalid read pointer");}
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#define ValidateWritePtr(p,cb) \
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{if(IsBadWritePtr((PVOID)p,cb) == TRUE) \
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DBGBREAK("Invalid write pointer");}
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#define ValidateReadWritePtr(p,cb) \
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{ValidateReadPtr(p,cb) ValidateWritePtr(p,cb)}
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#define ValidateStringPtr(p) \
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{if(IsBadStringPtr((LPCTSTR)p,INFINITE) == TRUE) \
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DBGBREAK("Invalid string pointer");}
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#define ValidateStringPtrA(p) \
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{if(IsBadStringPtrA((LPCSTR)p,INFINITE) == TRUE) \
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DBGBREAK("Invalid ANSII string pointer");}
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#define ValidateStringPtrW(p) \
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{if(IsBadStringPtrW((LPCWSTR)p,INFINITE) == TRUE) \
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DBGBREAK("Invalid UNICODE string pointer");}
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#else // !_DEBUG
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// Retail builds make public debug functions inert - WARNING the source
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// files do not define or build any of the entry points in debug builds
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// (public entry points compile to nothing) so if you go trying to call
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// any of the private entry points in your source they won't compile
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#define DBGASSERT(_x_)
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#define DBGBREAK(_x_)
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#define DBGASSERTEXECUTE(_x_) _x_
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#define DBGLOG(_x_)
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#define DBGOUT(_x_)
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#define ValidateReadPtr(p,cb)
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#define ValidateWritePtr(p,cb)
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#define ValidateReadWritePtr(p,cb)
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#define ValidateStringPtr(p)
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#define ValidateStringPtrA(p)
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#define ValidateStringPtrW(p)
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#endif // !_DEBUG
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#ifndef REMIND
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// REMIND macro - generates warning as reminder to complete coding
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// (eg) usage:
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//
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// #pragma message (REMIND("Add automation support"))
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#define REMINDQUOTE(x) #x
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#define REMINDQQUOTE(y) REMINDQUOTE(y)
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#define REMIND(str) __FILE__ "(" REMINDQQUOTE(__LINE__) ") : " str
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#endif
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#endif // __WXDEBUG__
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