IOHandler Class Reference

#include <io_handler.h>

Inheritance diagram for IOHandler:
zmm::Object DVDIOHandler FDIOHandler FileIOHandler IOHandlerBufferHelper MemIOHandler ProcessIOHandler BufferedIOHandler

Public Member Functions

 IOHandler ()
virtual void open (enum UpnpOpenFileMode mode)
 Opens a data for the web server.
virtual int read (char *buf, size_t length)
 Reads previously opened/initialized data sequentially.
virtual int write (char *buf, size_t length)
 Writes to previously opened/initialized data sequentially.
virtual void seek (off_t offset, int whence)
 Performs a seek on an open/initialized data.
virtual void close ()
 Close/free previously opened/initialized data.
void retain ()
void release ()
int getRefCount ()

Static Public Member Functions

static void * operator new (size_t size)
static void operator delete (void *ptr)

Protected Attributes

mt_atomic_t _ref_count
pthread_mutex_t mutex

Detailed Description

Definition at line 38 of file io_handler.h.


Constructor & Destructor Documentation

IOHandler::IOHandler (  ) 

Definition at line 54 of file io_handler.cc.


Member Function Documentation

void IOHandler::close (  )  [virtual]

Close/free previously opened/initialized data.

Reimplemented in BufferedIOHandler, DVDIOHandler, FDIOHandler, FileIOHandler, IOHandlerBufferHelper, and ProcessIOHandler.

Definition at line 136 of file io_handler.cc.

int Object::getRefCount (  )  [inherited]

Definition at line 78 of file object.cc.

References zmm::Object::_ref_count, and atomic_get().

virtual void IOHandler::open ( enum UpnpOpenFileMode  mode  )  [virtual]

Opens a data for the web server.

Parameters:
mode in which the data will be opened (we only support UPNP_READ)
Todo:
Genych, ya tut che to zapamyatowal kak gawno rabotaet? kto filename poluchaet??

Reimplemented in BufferedIOHandler, and IOHandlerBufferHelper.

void Object::operator delete ( void *  ptr  )  [static, inherited]

Definition at line 87 of file object.cc.

References FREE.

void * Object::operator new ( size_t  size  )  [static, inherited]

Definition at line 83 of file object.cc.

References MALLOC.

virtual int IOHandler::read ( char *  buf,
size_t  length 
) [virtual]

Reads previously opened/initialized data sequentially.

Parameters:
buf This buffer will be filled by our read functions.
length Number of bytes to read.

Reimplemented in IOHandlerBufferHelper.

Referenced by web_read().

void Object::release (  )  [inherited]
void Object::retain (  )  [inherited]
virtual void IOHandler::seek ( off_t  offset,
int  whence 
) [virtual]

Performs a seek on an open/initialized data.

Parameters:
offset Number of bytes to move in the buffer. For seeking forwards positive values are used, for seeking backwards - negative. Offset must be positive if origin is set to SEEK_SET
whence The position to move relative to. SEEK_CUR to move relative to current position, SEEK_END to move relative to the end of file, SEEK_SET to specify an absolute offset.

Reimplemented in IOHandlerBufferHelper.

Referenced by web_seek().

virtual int IOHandler::write ( char *  buf,
size_t  length 
) [virtual]

Writes to previously opened/initialized data sequentially.

Parameters:
buf Data to be written.
length Number of bytes to write.

Field Documentation

mt_atomic_t zmm::Object::_ref_count [protected, inherited]
pthread_mutex_t zmm::Object::mutex [protected, inherited]

The documentation for this class was generated from the following files:

Generated on Fri Mar 26 20:16:57 2010 for MediaTomb by  doxygen 1.6.1