CADebugMacros.h

/*
     File: CADebugMacros.h 
 Abstract:  Part of CoreAudio Utility Classes  
  Version: 1.01 
  
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*/
#if !defined(__CADebugMacros_h__)
#define __CADebugMacros_h__

//=============================================================================
//	Includes
//=============================================================================

#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
	#include <CoreAudio/CoreAudioTypes.h>
#else
	#include "CoreAudioTypes.h"
#endif

//=============================================================================
//	CADebugMacros
//=============================================================================

//#define	CoreAudio_StopOnFailure			1
//#define	CoreAudio_TimeStampMessages		1
//#define	CoreAudio_ThreadStampMessages	1
//#define	CoreAudio_FlushDebugMessages	1

#if TARGET_RT_BIG_ENDIAN
	#define	CA4CCToCString(the4CC)					{ ((char*)&the4CC)[0], ((char*)&the4CC)[1], ((char*)&the4CC)[2], ((char*)&the4CC)[3], 0 }
	#define CACopy4CCToCString(theCString, the4CC)	{ theCString[0] = ((char*)&the4CC)[0]; theCString[1] = ((char*)&the4CC)[1]; theCString[2] = ((char*)&the4CC)[2]; theCString[3] = ((char*)&the4CC)[3]; theCString[4] = 0; }
#else
	#define	CA4CCToCString(the4CC)					{ ((char*)&the4CC)[3], ((char*)&the4CC)[2], ((char*)&the4CC)[1], ((char*)&the4CC)[0], 0 }
	#define CACopy4CCToCString(theCString, the4CC)	{ theCString[0] = ((char*)&the4CC)[3]; theCString[1] = ((char*)&the4CC)[2]; theCString[2] = ((char*)&the4CC)[1]; theCString[3] = ((char*)&the4CC)[0]; theCString[4] = 0; }
#endif

//	This is a macro that does a sizeof and casts the result to a UInt32. This is useful for all the
//	places where -wshorten64-32 catches assigning a sizeof expression to a UInt32.
//	For want of a better place to park this, we'll park it here.
#define	SizeOf32(X)	((UInt32)sizeof(X))

//	This is a macro that does a offsetof and casts the result to a UInt32. This is useful for all the
//	places where -wshorten64-32 catches assigning an offsetof expression to a UInt32.
//	For want of a better place to park this, we'll park it here.
#define	OffsetOf32(X, Y)	((UInt32)offsetof(X, Y))

//	This macro casts the expression to a UInt32. It is called out specially to allow us to track casts
//	that have been added purely to avert -wshorten64-32 warnings on 64 bit platforms.
//	For want of a better place to park this, we'll park it here.
#define	ToUInt32(X)	((UInt32)(X))

#pragma mark	Basic Definitions

#if	DEBUG || CoreAudio_Debug
	// can be used to break into debugger immediately, also see CADebugger
	#define BusError()		{ long* p=NULL; *p=0; }
	
	//	basic debugging print routines
	#if	TARGET_OS_MAC && !TARGET_API_MAC_CARBON
		extern void DebugStr(const unsigned char* debuggerMsg);
		#define	DebugMessage(msg)	DebugStr("\p"msg)
		#define DebugMessageN1(msg, N1)
		#define DebugMessageN2(msg, N1, N2)
		#define DebugMessageN3(msg, N1, N2, N3)
	#else
		#include "CADebugPrintf.h"
		
		#if	(CoreAudio_FlushDebugMessages && !CoreAudio_UseSysLog) || defined(CoreAudio_UseSideFile)
			#define	FlushRtn	,fflush(DebugPrintfFile)
		#else
			#define	FlushRtn
		#endif
		
		#if		CoreAudio_ThreadStampMessages
			#include <pthread.h>
			#include "CAHostTimeBase.h"
			#if TARGET_RT_64_BIT
				#define	DebugPrintfThreadIDFormat	"%16p"
			#else
				#define	DebugPrintfThreadIDFormat	"%8p"
			#endif
			#define	DebugMsg(inFormat, ...)	DebugPrintf("%17qd: " DebugPrintfThreadIDFormat " " inFormat, CAHostTimeBase::GetCurrentTimeInNanos(), pthread_self(), ## __VA_ARGS__) FlushRtn
		#elif	CoreAudio_TimeStampMessages
			#include "CAHostTimeBase.h"
			#define	DebugMsg(inFormat, ...)	DebugPrintf("%17qd: " inFormat, CAHostTimeBase::GetCurrentTimeInNanos(), ## __VA_ARGS__) FlushRtn
		#else
			#define	DebugMsg(inFormat, ...)	DebugPrintf(inFormat, ## __VA_ARGS__) FlushRtn
		#endif
	#endif
	void	DebugPrint(const char *fmt, ...);	// can be used like printf
	#ifndef DEBUGPRINT
		#define DEBUGPRINT(msg) DebugPrint msg		// have to double-parenthesize arglist (see Debugging.h)
	#endif
	#if VERBOSE
		#define vprint(msg) DEBUGPRINT(msg)
	#else
		#define vprint(msg)
	#endif
	
	// Original macro keeps its function of turning on and off use of CADebuggerStop() for both asserts and throws.
	// For backwards compat, it overrides any setting of the two sub-macros.
	#if	CoreAudio_StopOnFailure
		#include "CADebugger.h"
		#undef CoreAudio_StopOnAssert
		#define CoreAudio_StopOnAssert 1
		#undef CoreAudio_StopOnThrow
		#define CoreAudio_StopOnThrow 1
		#define STOP	CADebuggerStop()
	#else
		#define STOP
	#endif

	#if CoreAudio_StopOnAssert
		#if !CoreAudio_StopOnFailure
			#include "CADebugger.h"
			#define STOP
		#endif
		#define __ASSERT_STOP CADebuggerStop()
	#else
		#define __ASSERT_STOP
	#endif

	#if CoreAudio_StopOnThrow
		#if !CoreAudio_StopOnFailure
			#include "CADebugger.h"
			#define STOP
		#endif
		#define __THROW_STOP CADebuggerStop()
	#else
		#define __THROW_STOP
	#endif

#else
	#define	DebugMsg(inFormat, ...)
	#ifndef DEBUGPRINT
		#define DEBUGPRINT(msg)
	#endif
	#define vprint(msg)
	#define	STOP
	#define __ASSERT_STOP
	#define __THROW_STOP
#endif

//	Old-style numbered DebugMessage calls are implemented in terms of DebugMsg() now
#define	DebugMessage(msg)										DebugMsg(msg)
#define DebugMessageN1(msg, N1)									DebugMsg(msg, N1)
#define DebugMessageN2(msg, N1, N2)								DebugMsg(msg, N1, N2)
#define DebugMessageN3(msg, N1, N2, N3)							DebugMsg(msg, N1, N2, N3)
#define DebugMessageN4(msg, N1, N2, N3, N4)						DebugMsg(msg, N1, N2, N3, N4)
#define DebugMessageN5(msg, N1, N2, N3, N4, N5)					DebugMsg(msg, N1, N2, N3, N4, N5)
#define DebugMessageN6(msg, N1, N2, N3, N4, N5, N6)				DebugMsg(msg, N1, N2, N3, N4, N5, N6)
#define DebugMessageN7(msg, N1, N2, N3, N4, N5, N6, N7)			DebugMsg(msg, N1, N2, N3, N4, N5, N6, N7)
#define DebugMessageN8(msg, N1, N2, N3, N4, N5, N6, N7, N8)		DebugMsg(msg, N1, N2, N3, N4, N5, N6, N7, N8)
#define DebugMessageN9(msg, N1, N2, N3, N4, N5, N6, N7, N8, N9)	DebugMsg(msg, N1, N2, N3, N4, N5, N6, N7, N8, N9)

void	LogError(const char *fmt, ...);			// writes to syslog (and stderr if debugging)
void	LogWarning(const char *fmt, ...);		// writes to syslog (and stderr if debugging)

#define	NO_ACTION	(void)0

#if	DEBUG || CoreAudio_Debug

#pragma mark	Debug Macros

#define	Assert(inCondition, inMessage)													\
			if(!(inCondition))															\
			{																			\
				DebugMessage(inMessage);												\
				__ASSERT_STOP;																	\
			}

#define	AssertFileLine(inCondition, inMessage)											\
			if(!(inCondition))															\
			{																			\
				DebugMessageN3("%s, line %d: %s", __FILE__, __LINE__, inMessage);		\
				__ASSERT_STOP;															\
			}

#define	AssertNoError(inError, inMessage)												\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					char __4CC[5] = CA4CCToCString(__Err);								\
					DebugMessageN2(inMessage ", Error: %d (%s)", (int)__Err, __4CC);		\
					__ASSERT_STOP;														\
				}																		\
			}

#define	AssertNoKernelError(inError, inMessage)											\
			{																			\
				unsigned int __Err = (unsigned int)(inError);							\
				if(__Err != 0)															\
				{																		\
					DebugMessageN1(inMessage ", Error: 0x%X", __Err);					\
					__ASSERT_STOP;														\
				}																		\
			}

#define	AssertNotNULL(inPtr, inMessage)													\
			{																			\
				if((inPtr) == NULL)														\
				{																		\
					DebugMessage(inMessage);											\
					__ASSERT_STOP;														\
				}																		\
			}

#define	FailIf(inCondition, inHandler, inMessage)										\
			if(inCondition)																\
			{																			\
				DebugMessage(inMessage);												\
				STOP;																	\
				goto inHandler;															\
			}

#define	FailWithAction(inCondition, inAction, inHandler, inMessage)						\
			if(inCondition)																\
			{																			\
				DebugMessage(inMessage);												\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfNULL(inPointer, inAction, inHandler, inMessage)							\
			if((inPointer) == NULL)														\
			{																			\
				DebugMessage(inMessage);												\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfKernelError(inKernelError, inAction, inHandler, inMessage)				\
			{																			\
				unsigned int __Err = (inKernelError);									\
				if(__Err != 0)															\
				{																		\
					DebugMessageN1(inMessage ", Error: 0x%X", __Err);					\
					STOP;																\
					{ inAction; }														\
					goto inHandler;														\
				}																		\
			}

#define	FailIfError(inError, inAction, inHandler, inMessage)							\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					char __4CC[5] = CA4CCToCString(__Err);								\
					DebugMessageN2(inMessage ", Error: %ld (%s)", (long int)__Err, __4CC);	\
					STOP;																\
					{ inAction; }														\
					goto inHandler;														\
				}																		\
			}

#define	FailIfNoMessage(inCondition, inHandler, inMessage)								\
			if(inCondition)																\
			{																			\
				STOP;																	\
				goto inHandler;															\
			}

#define	FailWithActionNoMessage(inCondition, inAction, inHandler, inMessage)			\
			if(inCondition)																\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfNULLNoMessage(inPointer, inAction, inHandler, inMessage)					\
			if((inPointer) == NULL)														\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfKernelErrorNoMessage(inKernelError, inAction, inHandler, inMessage)		\
			{																			\
				unsigned int __Err = (inKernelError);									\
				if(__Err != 0)															\
				{																		\
					STOP;																\
					{ inAction; }														\
					goto inHandler;														\
				}																		\
			}

#define	FailIfErrorNoMessage(inError, inAction, inHandler, inMessage)					\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					STOP;																\
					{ inAction; }														\
					goto inHandler;														\
				}																		\
			}

#if defined(__cplusplus)

#define Throw(inException)  __THROW_STOP; throw (inException)

#define	ThrowIf(inCondition, inException, inMessage)									\
			if(inCondition)																\
			{																			\
				DebugMessage(inMessage);												\
				Throw(inException);														\
			}

#define	ThrowIfNULL(inPointer, inException, inMessage)									\
			if((inPointer) == NULL)														\
			{																			\
				DebugMessage(inMessage);												\
				Throw(inException);														\
			}

#define	ThrowIfKernelError(inKernelError, inException, inMessage)						\
			{																			\
				unsigned int __Err = (inKernelError);									\
				if(__Err != 0)															\
				{																		\
					DebugMessageN1(inMessage ", Error: 0x%X", __Err);					\
					Throw(inException);													\
				}																		\
			}

#define	ThrowIfError(inError, inException, inMessage)									\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					char __4CC[5] = CA4CCToCString(__Err);								\
					DebugMessageN2(inMessage ", Error: %d (%s)", (int)__Err, __4CC);		\
					Throw(inException);													\
				}																		\
			}

#if TARGET_OS_WIN32
#define	ThrowIfWinError(inError, inException, inMessage)								\
			{																			\
				HRESULT __Err = (inError);												\
				if(FAILED(__Err))														\
				{																		\
					DebugMessageN2(inMessage ", Code: %d, Facility: 0x%X", HRESULT_CODE(__Err), HRESULT_FACILITY(__Err));			\
					Throw(inException);													\
				}																		\
			}
#endif

#define	SubclassResponsibility(inMethodName, inException)								\
			{																			\
				DebugMessage(inMethodName": Subclasses must implement this method");	\
				Throw(inException);														\
			}

#endif	//	defined(__cplusplus)

#else

#pragma mark	Release Macros

#define	Assert(inCondition, inMessage)													\
			if(!(inCondition))															\
			{																			\
				__ASSERT_STOP;															\
			}

#define AssertFileLine(inCondition, inMessage) Assert(inCondition, inMessage)

#define	AssertNoError(inError, inMessage)												\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					__ASSERT_STOP;														\
				}																		\
			}

#define	AssertNoKernelError(inError, inMessage)											\
			{																			\
				unsigned int __Err = (unsigned int)(inError);							\
				if(__Err != 0)															\
				{																		\
					__ASSERT_STOP;														\
				}																		\
			}

#define	AssertNotNULL(inPtr, inMessage)													\
			{																			\
				if((inPtr) == NULL)														\
				{																		\
					__ASSERT_STOP;														\
				}																		\
			}

#define	FailIf(inCondition, inHandler, inMessage)										\
			if(inCondition)																\
			{																			\
				STOP;																	\
				goto inHandler;															\
			}

#define	FailWithAction(inCondition, inAction, inHandler, inMessage)						\
			if(inCondition)																\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfNULL(inPointer, inAction, inHandler, inMessage)							\
			if((inPointer) == NULL)														\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfKernelError(inKernelError, inAction, inHandler, inMessage)				\
			if((inKernelError) != 0)													\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfError(inError, inAction, inHandler, inMessage)							\
			if((inError) != 0)															\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfNoMessage(inCondition, inHandler, inMessage)								\
			if(inCondition)																\
			{																			\
				STOP;																	\
				goto inHandler;															\
			}

#define	FailWithActionNoMessage(inCondition, inAction, inHandler, inMessage)			\
			if(inCondition)																\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfNULLNoMessage(inPointer, inAction, inHandler, inMessage)					\
			if((inPointer) == NULL)														\
			{																			\
				STOP;																	\
				{ inAction; }															\
				goto inHandler;															\
			}

#define	FailIfKernelErrorNoMessage(inKernelError, inAction, inHandler, inMessage)		\
			{																			\
				unsigned int __Err = (inKernelError);									\
				if(__Err != 0)															\
				{																		\
					STOP;																\
					{ inAction; }														\
					goto inHandler;														\
				}																		\
			}

#define	FailIfErrorNoMessage(inError, inAction, inHandler, inMessage)					\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					STOP;																\
					{ inAction; }														\
					goto inHandler;														\
				}																		\
			}

#if defined(__cplusplus)

#define Throw(inException)  __THROW_STOP; throw (inException)

#define	ThrowIf(inCondition, inException, inMessage)									\
			if(inCondition)																\
			{																			\
				Throw(inException);														\
			}

#define	ThrowIfNULL(inPointer, inException, inMessage)									\
			if((inPointer) == NULL)														\
			{																			\
				Throw(inException);														\
			}

#define	ThrowIfKernelError(inKernelError, inException, inMessage)						\
			{																			\
				unsigned int __Err = (inKernelError);									\
				if(__Err != 0)															\
				{																		\
					Throw(inException);													\
				}																		\
			}

#define	ThrowIfError(inError, inException, inMessage)									\
			{																			\
				SInt32 __Err = (inError);												\
				if(__Err != 0)															\
				{																		\
					Throw(inException);													\
				}																		\
			}

#if TARGET_OS_WIN32
#define	ThrowIfWinError(inError, inException, inMessage)								\
			{																			\
				HRESULT __Err = (inError);												\
				if(FAILED(__Err))														\
				{																		\
					Throw(inException);													\
				}																		\
			}
#endif

#define	SubclassResponsibility(inMethodName, inException)								\
			{																			\
				Throw(inException);														\
			}

#endif	//	defined(__cplusplus)

#endif  //  DEBUG || CoreAudio_Debug

#endif