Detailed Description

The IoIntfZipReader, which implements the abstract ZipReader interface, makes it possible for a ZipIo to open a ZIP file via another IoInterface.

Inheritance diagram for IoIntfZipReader:

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Public Member Functions
	IoIntfZipReader ()
	Uninitialized storage; call IoIntfZipReader_constructor before use or destruction. More...

	IoIntfZipReader (IoIntf io, const char pathName)
	The IoIntfZipReader constructor opens the ZIP file for reading. More...

	~IoIntfZipReader ()
	Close any open resource, ignoring the close status. More...

int	close ()
	Close and consume the underlying resource, even if closing fails. More...

int	getECode ()

Public Member Functions inherited from ZipReader
	ZipReader ()
	Uninitialized storage; call ZipReader_constructor before use. More...

	ZipReader (CspReader_Read r, U32 zipFileSize)
	Initialize a reader interface; no ZIP data is read yet. More...

Public Member Functions inherited from CspReader
bool	isValid ()

int	read (void *data, U32 offset, U32 size, bool blockStart)
	Invoke the installed CspReader_Read callback synchronously. More...

void	setIsValid ()
	Mark the implementation initialized after opening/checking its data. More...

Constructor & Destructor Documentation

IoIntfZipReader::IoIntfZipReader ( )

Uninitialized storage; call IoIntfZipReader_constructor before use or destruction.

IoIntfZipReader::IoIntfZipReader	(	IoIntf *	io,
		const char *	pathName
	)

The IoIntfZipReader constructor opens the ZIP file for reading.

Parameters

io	Borrowed I/O interface. Keep it alive until the reader closes. The interface must support seeking, or provide the seekAndRead property.
pathName	Required NUL-terminated ZIP file path relative to io; used during construction only. File size must fit U32 (no ZIP64). Check getECode and inherited CspReader::isValid before use.

IoIntfZipReader::~IoIntfZipReader ( )

Close any open resource, ignoring the close status.

Destroy dependent ZipIo objects and stop reads before destruction.

int IoIntfZipReader::close ( )

Close and consume the underlying resource, even if closing fails.

Do not use a dependent ZipIo after this call.

Returns: Underlying close status (zero success, negative failure), or -1 if no resource is open. Does not update getECode. The inherited isValid flag is not a current open/closed test.

int IoIntfZipReader::getECode ( )

Returns: Last construction or read status (zero success, otherwise an I/O error). Short reads become IOINTF_IOERROR. Close errors and reads attempted after close are not recorded here.