ALSA Sequencer Exception

Exception class for ALSA Sequencer errors. More...

Classes
class	SequencerError
	Exception class for ALSA Sequencer errors. More...

Macros
#define	DRUMSTICK_ALSA_CHECK_ERROR(x)   (checkErrorAndThrow((x),__PRETTY_FUNCTION__))
	This macro calls the check error function. More...
#define	DRUMSTICK_ALSA_CHECK_WARNING(x)   (checkWarning((x),__PRETTY_FUNCTION__))
	This macro calls the check warning function. More...

Functions
int	checkErrorAndThrow (int rc, const char *where)
	Checks the error code for severe errors. More...
int	checkWarning (int rc, const char *where)
	Check the error code for warning errors. More...
	SequencerError (QString const &s, int rc)
	Constructor. More...
virtual const char *	what () const noexcept override
	Retrieve a human readable error message. More...
QString	qstrError () const
	Gets the human readable error message from the error code. More...
int	code () const
	Gets the numeric error code. More...
const QString &	location () const
	Gets the location of the error code as provided in the constructor. More...

Detailed Description

Exception class for ALSA Sequencer errors.

Macro Definition Documentation

DRUMSTICK_ALSA_CHECK_ERROR

#define DRUMSTICK_ALSA_CHECK_ERROR

(

x

)

(checkErrorAndThrow((x),__PRETTY_FUNCTION__))

This macro calls the check error function.

Parameters

x	Error code

Definition at line 80 of file errorcheck.h.

DRUMSTICK_ALSA_CHECK_WARNING

#define DRUMSTICK_ALSA_CHECK_WARNING

(

x

)

(checkWarning((x),__PRETTY_FUNCTION__))

This macro calls the check warning function.

Parameters

x	Error code

Definition at line 86 of file errorcheck.h.

Function Documentation

checkErrorAndThrow()

int checkErrorAndThrow ( int  rc, const char *  where  )

inline

Checks the error code for severe errors.

If the provided error code is less than zero an exception is thrown, containing both the error code and the location.

Parameters

rc	Error code
where	Location

Returns

Error code

Definition at line 50 of file errorcheck.h.

checkWarning()

int checkWarning ( int  rc, const char *  where  )

inline

Check the error code for warning errors.

This method doesn't throw an exception.

Parameters

rc	Error code
where	Location

Returns

Error code

Definition at line 67 of file errorcheck.h.

code()

int code

(

)

const

Gets the numeric error code.

Returns

Error code

Examples

drumgrid.cpp, dumpmid.cpp, and metronome.cpp.

Definition at line 49 of file sequencererror.cpp.

location()

const QString & location

(

)

const

Gets the location of the error code as provided in the constructor.

Returns

Error location

Examples

drumgrid.cpp, dumpmid.cpp, and metronome.cpp.

Definition at line 54 of file sequencererror.cpp.

qstrError()

QString qstrError

(

)

const

Gets the human readable error message from the error code.

Returns

Error message

Examples

drumgrid.cpp, dumpmid.cpp, metronome.cpp, and sysinfo.cpp.

Definition at line 44 of file sequencererror.cpp.

References SequencerError::what().

SequencerError()

SequencerError	(	QString const &	s,
		int	rc
	)

Constructor.

Parameters

s	Error location
rc	Numeric error code

Definition at line 36 of file sequencererror.cpp.

what()

const char * what ( ) const

overridevirtualnoexcept

Retrieve a human readable error message.

Returns

human readable error message

Definition at line 39 of file sequencererror.cpp.

Referenced by SequencerError::qstrError().