file_info_filter

#include <metadb.h>

Inheritance diagram for file_info_filter:

Public Member Functions
virtual bool	apply_filter (metadb_handle_ptr p_location, t_filestats p_stats, file_info &p_info)=0
	FB2K_MAKE_SERVICE_INTERFACE (file_info_filter, service_base)
Public Member Functions inherited from service_base
template<typename outPtr_t >
bool	cast (outPtr_t &outPtr)
virtual int	service_add_ref ()=0 throw ()
virtual bool	service_query (service_ptr_t< service_base > &p_out, const GUID &p_guid)
template<class T >
bool	service_query_t (service_ptr_t< T > &p_out)
virtual int	service_release ()=0 throw ()

Additional Inherited Members
Public Types inherited from service_base
typedef service_base	t_interface
Protected Member Functions inherited from service_base
	service_base ()
	~service_base ()

Detailed Description

Implementing this class gives you direct control over which part of file_info gets altered during a tag update uperation. To be used with metadb_io_v2::update_info_async().

Definition at line 66 of file metadb.h.

Member Function Documentation

virtual bool file_info_filter::apply_filter ( metadb_handle_ptr  p_location, t_filestats  p_stats, file_info &  p_info  )

pure virtual

Alters specified file_info entry; called as a part of tag update process. Specified file_info has been read from a file, and will be written back.
WARNING: This will be typically called from another thread than main app thread (precisely, from thread created by tag updater). You should copy all relevant data to members of your file_info_filter instance in constructor and reference only member data in apply_filter() implementation.

Returns

True when you have altered file_info and changes need to be written back to the file; false if no changes have been made.

Implemented in file_info_filter_impl.

file_info_filter::FB2K_MAKE_SERVICE_INTERFACE	(	file_info_filter	,
		service_base
	)

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

• foobar2000/SDK/metadb.h