callstack.h

本例是SYMBIAN C++一个创建短信的例子

#ifndef __CALL_STACK_H__
#define __CALL_STACK_H__

#include <e32std.h>
#include <flogger.h>

_LIT( _KTestLogDir, "tm" );
_LIT( _KTestLogFile, "callstack.log" );

#define FUNCTION_LEVEL_STATISTICS

extern RFileLogger iNqLogger;

#ifdef __WINS__
#define CALLSTACK_DEBUG 1
#else
#ifdef EKA2
#define CALLSTACK_DEBUG 1
#endif // EKA2
#endif // __WINS__


const TInt KDebugDummyFlag = 0; // supress complier complaint

#ifdef CALLSTACK_DEBUG
	TBool DbAssertFailedLine(const TDesC8& aExpression, const TDesC8& aFileName, int aLine);

	#define CALLSTACKITEM(X)	            TCallStackItem __item(X);
	#define CALLSTACKITEM_N(CLASS, FUNC)	TCallStackItem __item((CLASS), (FUNC));

	#define LOGS(args) iNqLogger.Write(args);
	#define LOGV(args) \
		do{ \
		iNqLogger.WriteFormat args; \
		}while(&KDebugDummyFlag == 0);

	#define DB_ASSERT(f) \
		do \
		{ \
			if (!(f) && DbAssertFailedLine(TPtrC8((TText8*)#f), TPtrC8((TText8*)__FILE__), __LINE__)) \
				User::Invariant(); \
		} while (0) ;

#else
	#define CALLSTACKITEM(X)
	#define CALLSTACKITEM_N(CLASS, FUNC)
	#define LOGS(args)  do{}while(&KDebugDummyFlag == 0);
	#define LOGV(args)  do{}while(&KDebugDummyFlag == 0);
	#define DB_ASSERT(f)			        ((void)0);
#endif

class TCallStackItem 
{
public:
	TCallStackItem(const TDesC8& Name);
	TCallStackItem(const TDesC8& Class, const TDesC8& Func);
	~TCallStackItem();
private:
	TBuf8<256>  iName;

#ifdef FUNCTION_LEVEL_STATISTICS
	TUint		iStartTicks;
#endif
};


#endif