hxsym_leaveutil.h
上传用户:zhongxx05
上传日期:2007-06-06
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文件大小:3k
- /************************************************************************
- * hxsym_leaveutil.h.
- * -------------
- *
- * Synopsis:
- *
- *
- * (c) 1995-2003 RealNetworks, Inc. Patents pending. All rights reserved.
- *
- ************************************************************************/
- #ifndef hxsym_leaveutil_h
- #define hxsym_leaveutil_h
- // sdk includes
- #include <e32std.h>
- // helix includes
- #include "hxassert.h"
- //
- // XXXLCM
- //
- // In some instances gcc appends an underscore to symbol names that
- // externally reference the first member of a namespace if that member
- // is a function. That is, in object files that reference the function
- // the symbol name has a trailing underscore appended to it; in the object
- // file that defines the function, the symbol name does not have the trailing
- // underscore in its name.
- //
- // This works around that by declaring a bogus, unlikely name as the
- // first member.
- //
- #define NAMESPACE_FIRST_MEMBER_FIX void englebert_humperdinck();
- namespace hxsym
- {
- NAMESPACE_FIRST_MEMBER_FIX
- void DoLeaveErrorMsgL(const char* pszFile, int line, TInt err);
- inline
- void Leave(TInt err, const char* pszFile, int line)
- {
- DoLeaveErrorMsgL(pszFile, line, err);
- User::Leave(err);
- }
- inline
- void LeaveIfError(TInt err, const char* pszFile, int line)
- {
- if( KErrNone != err )
- {
- Leave(err, pszFile, line);
- }
- }
- inline
- void LeaveIfFalse(bool cond, const char* pszFile, int line)
- {
- HX_ASSERT(cond);
- if(!cond)
- {
- Leave(KErrGeneral, pszFile, line);
- }
- }
- inline
- void LeaveIfTrue(bool cond, const char* pszFile, int line)
- {
- LeaveIfFalse(!cond, pszFile, line);
- }
- } // ns hxsym
- #define HXSYM_LEAVE(err) hxsym::Leave(err, __FILE__, __LINE__)
- #define HXSYM_LEAVE_IF_ERR(err) hxsym::LeaveIfError(err, __FILE__, __LINE__)
- #define HXSYM_LEAVE_IF_TRUE(cond) hxsym::LeaveIfTrue(cond, __FILE__, __LINE__)
- #define HXSYM_LEAVE_IF_FALSE(cond) hxsym::LeaveIfFalse(cond, __FILE__, __LINE__)
- #if defined(NO_LEAVE_MESSAGE) //XXXLCM support these (no message) versions as well
- inline
- void Leave(TInt err)
- {
- User::Leave(err);
- }
- inline
- void LeaveIfError(TInt err)
- {
- HX_ASSERT(err != KErrNone);
- User::LeaveIfError(err);
- }
- inline
- void LeaveIfTrue(bool cond)
- {
- LeaveIfFalse(!cond);
- }
- inline
- void LeaveIfFalse(bool cond)
- {
- HX_ASSERT(cond);
- if(!cond)
- {
- User::Leave(KErrGeneral);
- }
- }
- ///////////////////////////////////
- /*
- template<class T>
- inline
- T* LeaveIfNull(T *p)
- {
- HX_ASSERT(p != 0);
- User::LeaveIfNull(p);
- return p;
- }
- template<class T>
- inline
- const T* LeaveIfNull(const T *p)
- {
- HX_ASSERT(p != 0);
- User::LeaveIfNull(p);
- return p;
- }
- */
- #define HXSYM_LEAVE(err) hxsym::Leave(err)
- #define HXSYM_LEAVE_IF_ERR(err) hxsym::LeaveIfError(err)
- #define HXSYM_LEAVE_IF_TRUE(cond) hxsym::LeaveIfTrue(cond)
- #define HXSYM_LEAVE_IF_FALSE(cond) hxsym::LeaveIfFalse(cond)
- #endif // NO_LEAVE_MESSAGE
- #endif //hxsym_leaveutil_h