unpacker

#include <unpack.h>

Inheritance diagram for unpacker:

Public Member Functions
	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT (unpacker)
virtual void	open (service_ptr_t< file > &p_out, const service_ptr_t< file > &p_source, abort_callback &p_abort)=0
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 ()

Static Public Member Functions
static void	g_open (service_ptr_t< file > &p_out, const service_ptr_t< file > &p_source, abort_callback &p_abort)

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

Service providing "unpacker" functionality - processes "packed" file (such as a zip file containing a single media file inside) to allow its contents to be accessed transparently.
To access existing unpacker implementations, use unpacker::g_open helper function.
To register your own implementation, use unpacker_factory_t template.

Definition at line 4 of file unpack.h.

Member Function Documentation

unpacker::FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT

(

unpacker

)

void unpacker::g_open ( service_ptr_t< file > &  p_out, const service_ptr_t< file > &  p_source, abort_callback &  p_abort  )

static

Static helper querying existing unpacker implementations until one that successfully opens specified file is found. Attempts to open specified file for unpacking, creates interface to virtual file with uncompressed data on success. When examined file doesn't appear to be one of formats supported by registered unpacker implementations, throws exception_io_data.

Parameters

p_out	Receives interface to virtual file with uncompressed data on success.
p_source	Source file to process.
p_abort	abort_callback object signaling user aborting the operation.

Definition at line 6 of file filesystem.cpp.

{
    service_enum_t<unpacker> e;
    service_ptr_t<unpacker> ptr;
    if (e.first(ptr)) do {
        p->reopen(p_abort);
        try {
            ptr->open(p_out,p,p_abort);
            return;
        } catch(exception_io_data const &) {}
    } while(e.next(ptr));
    throw exception_io_data();
}

virtual void unpacker::open ( service_ptr_t< file > &  p_out, const service_ptr_t< file > &  p_source, abort_callback &  p_abort  )

pure virtual

Attempts to open specified file for unpacking, creates interface to virtual file with uncompressed data on success. When examined file doesn't appear to be one of formats supported by this unpacker implementation, throws exception_io_data.

Parameters

p_out	Receives interface to virtual file with uncompressed data on success.
p_source	Source file to process.
p_abort	abort_callback object signaling user aborting the operation.

---

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

• foobar2000/SDK/unpack.h
• foobar2000/SDK/filesystem.cpp